Manual Welch Allyn 62000

Welch Allyn Medical Division

Atlas Patient Monitor

Service Manual

4341 State Street RoadP.O. Box 220

Skaneateles Falls, NY 13153-02206200-43E Rev B Copyright 2002

Welch Allyn Atlas Monitor iService Manual 6200-43E Rev. B

Drawings and/or illustrations and/or part numbers contained in thisdocument are for reference purposes only. For current revisions call theWelch Allyn Customer Service phone number listed in Section 1 page 2.

Part No Rev Description ECN # Date Approved

6200-43E A New Release of ATLAS Service Manual 5-40429 10/99 RS/LP

6200-43E B

Updated calibration proceduresUpdated perfomance verification proceduresUpdated drawing 620150 Rev B to Rev CUpdated drawing 620201 Rev A to Rev BUpdated drawing 620524 Rev A to Rev BAdded complete repair parts lists.Added calibration date table

5-44782 07/02 DK

ii Welch Allyn Atlas Monitor Service Manual 6200-43E Rev. B

Contents

Section 1: General Information

About the Atlas Monitor .................................................................................................................. 1Safety Warnings ................................................................................................................................. 3Product Model Number Structure ................................................................................................. 4Main Menu Architecture ................................................................................................................. 5Atlas System Block Diagram ........................................................................................................... 6

Section 2: Service

Incoming Inspection ......................................................................................................................... 1Calibration and Maintenance ......................................................................................................... 2Tools required for Service ............................................................................................................... 3Setting Time and Date ...................................................................................................................... 4BP Calibration Procedure ................................................................................................................ 450mmHg Calibration ........................................................................................................................ 5250mmHg Calibration ...................................................................................................................... 5CO2 Reset Procedure ........................................................................................................................ 6ET CO2 Calibration ........................................................................................................................... 7No-Load Battery Charge Voltage Calibration ............................................................................... 8Battery Voltage Calibration ............................................................................................................. 8Printer Print Adjustment ...............................................................................................................10Temperature Calibration................................................................................................................10Calibration Date Set ........................................................................................................................11Software/firmware Revision Levels .............................................................................................12Software Downloading Requirements ........................................................................................13Software Upgrade Procedure. .......................................................................................................14Downloading NVRAM files ..........................................................................................................15

Section 3: Troubleshooting

Power on Self Test ............................................................................................................................ 1Menu Functional Test ...................................................................................................................... 2BP Test ................................................................................................................................................ 4Static Manometer Accuracy Test ................................................................................................... 5BP Leak Test ....................................................................................................................................... 6Over 15 mmHg Test .......................................................................................................................... 6BP Dump Verification Test ............................................................................................................. 7Hardware Fail Safe Tests ................................................................................................................. 7ECG/Respiration Test ....................................................................................................................... 8SpO2 Test ........................................................................................................................................... 9Temperature Test .............................................................................................................................. 9CO2 Functional Test .......................................................................................................................10Battery Functional Test ..................................................................................................................10

Welch Allyn Atlas Monitor iiiService Manual 6200-43E Rev. B

Printer Functional Test ..................................................................................................................11Software/Firmware .........................................................................................................................12ECG Alarms Test .............................................................................................................................12Respiration Alarms Test .................................................................................................................14SpO2 Alarm Test .............................................................................................................................15Silence Alarm Test ..........................................................................................................................16CO2/RESP Alarm test .....................................................................................................................16Blood Pressure Alarm Test ............................................................................................................17Atlas Troubleshooting Guide.........................................................................................................20

Section 4: Disassembly and repair

About Section 4 ................................................................................................................................. 1Model 200 Disassembly. .................................................................................................................. 2Model 200 Reassembly. .................................................................................................................13Other models dissassembly/reassembly. ....................................................................................15

Appendix Section:

A ........................................................................................................................Theory Of OperationB ..............................................................................................................................Repair Parts ListsC ............................................................................................Interconnect Diagram 620396 Rev AD ...........................................................................Electrical schematic and circuit board layoutsE................................................................................................................Calibration Date Numbers

Service Manual 6200-43E Rev. B Welch Allyn Atlas Monitor 1

General InformationSection 1

About the Atlas Monitor

The Atlas combines in one unit all the necessary measurements for patients under anes-thesia, for surgical recovery, or bed side monitoring. See Section 1, page 3 for a completelisting of product models and options.

According to the standards of care for Nurse Anesthetists and Anesthesiologists, allpatients receiving conscious sedation are to be continuously monitored throughout theprocedure and recovery phase by ECG, SpO2, and NIBP. CO2 monitoring is a require-ment during gas anesthesia (when patient is ventilated).

The Atlas combines a CRT to display ECG, CO2, SpO2, and respiration waveforms. Itutilizes LEDs for the other numeric values to maximize visibility and viewing angle.Although not designed to be a transport product, the monitor has an integral handle andit is small and light enough at 13 lbs. to be easily moved. A battery was added to enablethe monitor to be used if there is a power outage or to be unplugged momentarily whenmoved with the patient from the surgery room to the recovery room. The battery wasnot designed to make the Atlas into a transport monitor. The Atlas monitor should beplugged into AC as much as possible to give you the maximum battery backup timewhen there is a power outage. It will maintain unit operation for up to an hour whenpower is interrupted if the battery is fully charged.

WARNING

Discharging the battery frequently will shorten the battery life and will shorten thebattery backup time.

IMPORTANT: for a complete description on the function and use of the Atlas, as well asuser safety warnings, cautions, and warranty information, read and understand the AtlasOperator’s Manual. See the Table 1.1 below for correct Operator Manual part #.

TABLE 1.1

Language Part#

English 6200-42E

French 6200-42F

German 6200-42G

Italian 6200-42I

Spanish 6200-42S

Portuguese 6200-42P

Japanese 6200-42J

Chinese 6200-42C

General Information

2 Welch Allyn Patient Monitor Service Manual 6200-43E REV. B

Help Information

To assure correct operation and performance all service and repairs must be performedby fully trained and properly equipped personnel, using genuine replacement parts andcorrect procedures. Failure to do so will also invalidate the product warranty.

When calling, refer to the model number on the bottom of the Atlas. The Model Numberis the first three digits of the Serial number found on the bottom of the Atlas.

Welch Allyn International Product Service Centers

Welch Allyn Inc.State Street Plant /Corporate Headquarters4341 State Street RoadSkaneateles Falls, NY 13153 0220, USA

tel: 1 800 535-6663 315 685 4100

fax: 315 685 3361www.welchallyn.com/medical/support/tech

Welch Allyn Canada Ltd.160 Matheson Blvd. E., Unit #2Mississauga, Ontario Canada L4Z 1V4

tel: 1 800-561-8797 905-890-0004fax: 905-890-0008

MD International11300 N.W. 41st StreetMiami, FL 33178 USA

tel: 305-669-9003fax: 305-669-1971

Welch Allyn GMBHZollerstrasse 2 472417 Jungingen, Germany

tel: (011) 49 7477 927186fax: (011) 49 7477 927193

Welch Allyn France SARL814 rue Charles de Gaulle77100 Mareuil les MeauxFrance

tel: (011) 33.1.6009.3366Fax: (011) 33.1.6009.6797

Welch Allyn UK LtdSt. Georges HouseVernon Gate, DerbyEngland DE1 1UQ

tel: (011) 44-01332-206208fax: (011) 44-01332-206209mob: (011) 44-0467-301814

Welch Allyn Australia PtyMetro Centre Unit 538-46 South StreetRydalmere NSW 2116, AustraliaPostal address:PO Box 132Rydalmere NSW 1701, Australia

tel: (011) 612 9638-3000fax: (011) 612 9638-3500

Welch Allyn Singapore Ltd300 Beach Road, #25-08The ConcourseSingapore 199589, Singapore

tel: (011) 65-291-0882fax: (011) 65-291-5780

China Service CenterRoom 708, Central PlazaNo. 227 Huang Pi Bei RoadHuang Pu DistrictShanghai 200003China

tel: (011) 86-21-63279631fax: (011) 86-21-63279632

Welch Allyn Japan K.K.Bon Marusan 8F, 3-5-1 KandaJinbo-Cho, Chiyoda-KuTokyo 101-0051Japan

tel: (011) 813-5212-7391fax: (011) 813-3261-7372

General Information

Service Manual 6200-43E Rev. B Welch Allyn Patient Monitor 3

Troubleshooting assistance is contained in Section 3 of this manual to help determinewhich board is malfunctioning. This manual does not support repairing the printedcircuit boards.

Safety Warnings

Read and understand all safety warnings and service notes printed in this ServiceManual and the Operator’s Manual part number 6200-42E.

General Information

4 Welch Allyn Patient Monitor Service Manual 6200-43E REV. B

Product Model Number Structure

621S0 ECG, Nonin SpO2, NIBP

621SP ECG, Nonin SpO2, NIBP, Printer

622S0 ECG, Nonin SpO2, NIBP, Temp, Respiration, Battery, RS232

622SP ECG, Nonin SpO2 , NIBP, Temp, Respiration, Battery, RS232, Printer

622N0 ECG, Nellcor SpO2, NIBP, Temp, Respiration, Battery, RS232

622NP ECG, Nellcor SpO2, NIBP, Temp, Respiration, Battery, RS232, Printer

623SP ECG, Nonin SpO2, NIBP, ETCO2, Temp, Respiration, Battery, RS232, Printer

623NP ECG, Nellcor SpO2, NIBP, ETCO2, Temp, Respiration, Battery, RS232, Printer

SUFFIX:

Use letter designation for language localization as follows:E = English, F= French, G= German, I= Italian, S= Spanish, P= Portuguese C = Chi-nese, J= Japanese

Use number designation for line cord localization as follows:

1 = US, Canada, Japan Version2 = European Version4 = United Kingdom Version6 = Australian Version


General InformationSection 1

Main Menu Architecture

Also note that this is for the 623xx system.• On a 622xP system, delete the CO2 Reset box, the Calibrate CO2 item, and the CO2

units item.• On a 621xP system, delete the CO2 Reset box, the Calibrate CO2 item, the CO2

units item, Respiration speed item, the Temperature units item, and the Batterytest item.

• On systems without printers (621x0 and 622x0) delete the Printer test patternitem.The Display A/D Channels also lets you press <SET> up and down to displayadditional sets of information, but does not change the menu page that you are on,just writes different information on the right side of the screen.

*

Section 1

6 Welch Allyn Atlas Monitor

General Information

Service Manual 6200-43E Rev. B

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Service Section 2

Incoming Inspection

NOTE: Use the following guidelines when unpacking the monitor from its shipping carton.

1. Before opening the monitor shipping carton, check for damage.

2. If damage is apparent, stop unpacking the carton and contract the shipping company forfurther instructions. If the carton is intact, unpack the monitor.

3. With the monitor out of its carton, check to see that all the items listed on the packingslip are in the shipping carton. See table 2.1 below.

4. If an item is missing, first check the carton, then check with your receivingdepartment. If necessary contact Welch Allyn at the Address and phone numbershown on Section 1 .

5. Clean and disinfect by following the instructions printed in the Operator Manual.

NOTE: Perform all functional tests as listed in Section 3 before and after servicing.

6. Operate the Atlas to verify the customer complaint before making any changes to theunit. Call the customer if the complaint is unclear.

7. If the unit has caused or is suspected of having caused an injury of any type:DO NOT DISASSEMBLE OR REPAIR THE UNIT IN ANY WAY.Contact Welch Allyn Customer Service immediately.

Table 2.1

Qty. Description1 Warranty card1 Adult Durable 1pc. Cuff1 Large Adult Durable 1pc. Cuff1 5ft. Straight Hose1 ECG Patient Cable (Three Lead)3 ECG Lead Wires 1 SPO2 Sensor/ Finger Clip1 ETCO2 Water Trap 623 only1 ETCO2 Scrubber 623 only1 Nasal Canula 623 only1 Atlas Monitor1 Detachable Power Cord1 Printer Paper Roll1 Operation Manual1 Skin Temperature Probe 622/623 only

2 Welch Allyn Atlas Monitor Service Manual 6200-43E Rev. B

Service Section 2

Calibration and Maintenance

The Atlas Monitor must be serviced by authorized Welch Allyn personnel or agents at 6month intervals. Maintenance requirements are specified for 6 month and 12 month serviceintervals. The monthly CO2 Reset operation can be performed by the user.

Service Interval Maintenance Requirements

Every 6 months CO2 Calibration

Every 12 months BP calibration, CO2 reset, battery voltage calibration,printer adjustment, and temperature calibrationComplete functional test


Service Section 2

Tools required for Service

TABLE 2.2

Description Tool # Company100cc Test Volume T-112189 Welch Allyn500cc Test Volume T-112854 Welch AllynConnector Separator Tool Deflection/Main boards T-16654 Welch AllynPrinter Connector Pliers T-16673 Welch AllynBlood Pressure fitting Nut Driver T-16593 Welch AllynPrinter Motor Nut driver T-16705 Welch AllynT-10 TORX screwdriver XTD-10 Xcelite brand7/16" deep socket for Temperature Port nut generic 1/4" driveSqueeze Bulb and Valve 5088-01 Welch AllynCalibrated Manometer (0-10PSIG)Bio-Tek (NIBP TESTER) BP Pump Bio-TekPneumatic Tubing 97P24 Welch AllynPneumatic Tubing (coiled) 5200-07 Welch Allyn"T" Fitting (3) 5200-08 Welch AllynNonin Patient Simulator 8000S NoninNonin Cable 5200-52 NoninCalibrated Thermometer for 90F to 115F rangeLG, Adult Cuff/Bag 5200-02 Welch AllynNellcor Patient Simulator SRC-2 NellcorNellcor Test Cable EC-8 NellcorECG Simulator with Impedance Respiration 214B DNI NevadaECG Patient Cable (5 lead AHA) 6200-02 Welch AllynECG Patient Cable (5 lead IEC) 6200-04 Welch AllynECG leads, 5 Lead (IEC) 6200-08 Welch AllynECG leads, 5 Lead AHA 6200-06 Welch AllynCertified Tank 10% CO2, balance N2

ETCO2 Water Trap (package of 5) 6200-20 Welch AllynETCO2 Scrubber 6200-21 Welch AllynETCO2 Adult Nasal Sample Line 6200-22 Welch AllynSurface Sensor, Temperature 6200-15 Welch AllynCustom repair software: atlas_dl.exe Call Welch AllynPrinter Paper - Case 6200-40 Welch AllynDigital Multimeter with 10mV accuracy on a 10V scale; 10A RangeAdjustable DC power supply 5A @ 7VBattery cable assembly 620174-1 Welch AllynAtlas interface cable to PC 6200-60 Welch AllynWindows PC with HyperTerminal serial port software

Part of Windows 95 & above


Service Section 2

Setting Time and Date

NOTE: Check date and time before doing any calibration. Set date and time if not correct.Set time and date as follows;

1. Turn Atlas on.

2. Press CLOCK button next to power on button to check date and time. Use the far rightSELECT button to highlight the date and time.

2. Press the SET button to adjust date and time.

3. Press CLOCK button to exit.

BP Calibration Procedure

1. Required material.1. 500cc vessel 4. Calibrated digital manometer2. Squeeze bulb with one-way valve 5. Tubing and T fittings3. PC with HyperTerminal 6. Serial cable

2. Hyper Terminal Settings are:9600 Baud, 8 bit word, 1 stop bitno parity, no flow controlANSI character setFind HyperTerminal in Windows 95 or higherStart-->Programs--> Accessories--> Communication--> HyperTerminal

3. Connect the manometer, bulb, and 500cc vessel to BP port with “T” connectors asshown below in Figure 2.1

Figure 2.1

500cc

Manometer

Bulb


Service Section 2

4. Connect the Atlas to PC with serial cable.

5. Turn Atlas on and start HyperTerminal on PC.

NOTE: Take no more than 3 minutes for the 50mmHg calibration nor more than 3 minutesfor the 250mmHg calibration as the Atlas will automatically, as a safety feature, open theblood pressure valve. If this happens you will have to turn the Atlas off then back on againand restart calibration again.

50mmHg Calibration

1. Enter the following commands at the Pangea prompt.Pangea> bp valve close <ENTER>Pangea> bp safety off <ENTER>Pangea> bp cal 5000 Do not press <ENTER> yet!

2. Raise pressure with bulb to as close to 50.00mmHg as possible. Now press <ENTER>.

3. Release the pressure.

250mmHg Calibration

1. Enter the following commandsPangea> bp cal 25000 Do not press <ENTER> yet!

2. Raise pressure with bulb as close to 250.00 mmHg as possible. Now press < ENTER >

3. Enter the following command to save calibration in Atlas.Pangea> nvram write <ENTER>

4. Release the pressure.


Service Section 2

CO2 Reset Procedure

1. Required material.1. Watertrap2. Scrubber

NOTE: The Scrubber looks similar to a watertrap, but is filled with white granules.It is included with model 623XX.

NOTE: Make sure date and time are correct.

2. Turn Atlas on. Make sure the watertrap and scrubber are NOT attached to theAtlas.

3. Press the Date/Time button on the lower right of the monitor. The Set Date andTime and Other Options menu will be displayed.

4. Press the CO2/RESP ALARMS Off button. The CO2 Reset screen will appear.

5. You will see a message on the CRT. “Install CO2 scrubber”

6. Install the watertrap and scrubber to the Atlas.

7. You will see the following instructions on the screen.“Warming up” will be flashing on CRT “May take up to five minutes”

8. After about 5 minutes you will see on the CRT.“CO2 Reset”“Reset complete”“Remove CO2 scrubber”“Press the trend button to exit”

9. Remove the CO2 watertrap and scrubber.

10.Press TREND button to return to idle screen.

NOTE: Replace watertrap every six hours of use. Treat watertrap and used CO2 samplelines as bio hazard material!!


Service Section 2

ET CO2 Calibration

Required material:1. Tank of approximately 10% CO2, balance N2 (certified) Blood Gas Mixture2. Tubing and T connectors3. Watertrap and scrubber

1. Make sure watertrap and scrubber are not attached to Atlas. Turn Atlas on.

2. Place the instrument into the Service Mode by pressing the Date/Time button. Makesure date and time are correct. Press Lead Select button.

3. Press Select button and scroll down to Calibrate CO2. The message “Install CO2Scrubber” will appear on right side of screen.

4. Attach scrubber to water trap.

5. Insert scrubber/water trap assembly into water trap socket. The message “Enter span gas value using Set button 10%” will appear.

6. Press SET button to change the default value (10%) to the value of span gas being used(calibrate with 8% to 12% Certified CO2 concentration known to be ±0.01%).

7. The message press “BP Start/Cancel” will appear at the bottom right of CRT. PressBP/Start/Cancel button.

8. If you receive a Calibration Failed at this point, check date. If date is 2022 or above itwill fail CO2 calibration at this point on calibration.

9. Next you will see a message “Warming up”. After the Atlas warms up you will see amessage “Attach CO2 gas”. Remove the scrubber from the CO2 water trap. Do notremove water trap.

10.Attach the certified source of CO2 gas to the CO2 side-stream sampling tube as perFigure 2.2 below.

Water Trap

CAUTION: IMPROPER USE,STORAGE ORHANDLING OF COMPRESSEDGAS VESSELS CAN CAUSEDEATH OR INJURY. FOLLOWGAS MANUFACTURES SAFETYPROCEDURES!

Figure 2.2

Vent CO2

Adjust Regulator toapproximately 2 PSI


Service Section 2

11.Adjust the CO2 regulator just enough to allow a small amount of gas to flow out of thevent (approximately 2 PSI).

12.Press BP Start/Cancel button. The message: “Sampling” will appear on CRT. Theneither CO2 calibration successful” or “CO2 calibration failed” will appear on the CRTdisplay.

13.Press Trend button to Exit.

NO-LOAD BATTERY CHARGE VOLTAGE CALIBRATION

NOTE: This procedure is for models 622 and 623 only. If you disconnect the battery youmust reset time and date after you reconnect the battery.

Specifications: No load battery charge DCV 6.85

Required materials: DVM

1. Remove battery and disconnect battery leads from Atlas

2. Use the DVM to measure across the connectors, red+ and black-.

3. Adjust the voltage to 6.85 VDC by turning potentiometer R338, located behind theright battery jack. Turning clockwise will increase the no-load voltage and counterclockwise will decrease the no-load voltage.

Battery Voltage Calibration

NOTE: This procedure is for models 622 and 623only. If you disconnect the battery youmust reset time and date after you reconnect the battery.

Required materials.1. DC power supply rated: 7 VDC at 5A2. DMM / DVM with 10mV resolution on a 10 DC volt scale.3. PC with HyperTerminal4. Serial interface cable5. PC with HyperTerminal

1. Connect serial cable to PC and Atlas



Service Section 2

3. Remove and disconnect the battery from Atlas.

4. Set the power supply to 6.8V +/- 200mV and connect the power supply to the battery connector on the Atlas.

5. Turn Atlas ON.

6. Reduce the power supply to 6.0V and measure the voltage at the battery connector (atthe Atlas) to the nearest 10mV.

NOTE: Do not measure at the power supply, since cable resistance will introduce error.

7. At the HyperTerminal prompt type:Pangea> power cal XXXX <ENTER>

NOTE: XXXX represents the measured voltage in millivolts no decimal point. Forexample, if you measured 6.010V at the battery connector, use the command “power cal6010 <ENTER>”.

8. The Atlas will respond: raw = ZZZZ mV true = 6010 mV OK

NOTE: ZZZZ is the raw uncalibrated reading that the instrument made.

9. Reduce the power supply to 5.6 volts. You should soon hear the “low battery” alarm.

10.Measure the voltage at the battery connector to the nearest 10mV.

11.At the HyperTerminal prompt type:Pangea> power cal XXXX <ENTER>

NOTE: XXXX represents the measured voltage in millivolts with no decimal point. Forexample if you measured 5.590 volts at the battery connector , then you would enter thecommand “power cal 5590” <ENTER>.

12.The Atlas will respond:raw = ZZZZmV true = 5590 OK

NOTE: ZZZZ is the raw uncalibrated reading that the instrument made.

13.Finish the calibration by typing:Pangea> hw reset <ENTER>

NOTE: this will re-boot the Atlas.

14.Turn the Atlas off and reinstall the battery.

15. Reset time and date.


Service Section 2

Printer Print Adjustment

1. Install new paper.

2. Turn Atlas on.

3. Attach an ECG simulator to Atlas and set simulator for a heart rate of 60/minute,normal sinus.

4. Press Print button. Evaluate the darkness of waveform and text printout.

5. If either need to be changed press Date/Time button then press Lead Select button toaccess Advanced Configuration menu.

6. Press Select button and scroll down to Printer Test Pattern. Then Press HR ALARMSOFF button

7. Two lines are displayed:1. Waveform +1282. Text + 78

NOTE: These two numbers are the factory defaults and are a good starting point if thesystem is printing poorly or not at all.

8. The left Set button controls the waveform darkness.The right Set button controls the text darkness.

NOTE: Pressing the Set button up will increase the number and darken the waveform whilepressing the Set button down will decrease the number and will lighten the waveform.

9. Make changes to the printout as needed.

10.Press Trend button to return to waveform screen

Temperature Calibration

Required Material:1. PC with windows 95 or higher 4. 1/4” mono phono jack2. Atlas serial cable 5. Soldering iron and solder3. 1k Ohm, 1/2 watt precision resistor 6. Ohm Meter

1. Solder resistor to 1/4 mono phono jack.

2. Measure the resistance at the tip of the phono jack. Record that resistance reading.

3. Plug the phono jack into the Atlas.


Service Section 2

NOTE: The Atlas will show a temperature reading in the temperature display.

4. Start HyperTerminal on PC.


6. At the Pangea prompt Type: PANGEA> temp cal XXXX <ENTER>

NOTE: XXXX is the resistance reading measured at the tip of the mono phono jack.

7. Wait four seconds then type:PANGEA> temp state <ENTER>

8. Verify that the resistance given by the above command returns a value within 0.5 ohms.

9. Verify temperature accuracy as outlined in Chapter 3.

Calibration Date Set

NOTE: After calibrating the Atlas you must reset the calibration date. The calibration date isthe date you performed the calibration. The calibration date appears in the Service Modemenu.

1. At the Pangea prompt type.

Pangea> nvram set cal_date XXXX <ENTER>

NOTE: XXXX is the number of days from January 1, 1998 until the present date. See AP-PENDIX E for that number or calculate manually.


Service Section 2

Software/firmware Revision LevelsTable 2.3

Model Operating System Boot loader Nellcor Nonin Pryon621S0 AA.01.4000, 9/8/99 AA.01.0000, 6/20/99 V7621S0 AA.02.0000, 4/4/01 AA.01.0000, 6/20/99 V7

621SP AA.01.4000, 9/8/99 AA.01.0000, 6/20/99 V7621SP AA.02.0000, 4/4/01 AA.01.0000, 6/20/99 V7

622S0 AA.01.4000, 9/8/99 AA.01.0000, 6/20/99 V7622S0 AA.02.0000, 4/4/01 AA.01.0000, 6/20/99 V7

622SP AA.01.4000, 9/8/99 AA.01.0000, 6/20/99 V7622SP AA.02.0000, 4/4/01 AA.01.0000, 6/20/99 V7

622N0 AA.01.4000, 9/8/99 AA.01.0000, 6/20/99 V 1.2.0.0 12/17/97622N0 AA.02.0000, 4/4/01 AA.01.0000, 6/20/99 V 1.2.0.0 12/17/97

622NP AA.01.4000, 9/8/99 AA.01.0000, 6/20/99 V 1.2.0.0 12/17/97622NP AA.02.0000, 4/4/01 AA.01.0000, 6/20/99 V 1.2.0.0 12/17/97

623SP AA.01.4000, 9/8/99 AA.01.0000, 6/20/99 V7 0.E V1.00623SP AA.02.0000, 4/4/01 AA.01.0000, 6/20/99 V7 0.E V1.00

623NP AA.01.4000, 9/8/99 AA.01.0000, 6/20/99 V 1.2.0.0 12/17/97 0.E V1.00623NP AA.02.0000, 4/4/01 AA.01.0000, 6/20/99 V 1.2.0.0 12/17/97 0.E V1.00


Service Section 2

Software Downloading Requirements

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Service Section 2

Software Upgrade Procedure.

1. The following procedures are required to upgrade the software on a fully functioningAtlas or to reload software after replacing the CPU board. The download utility“atlas_dl.exe” loads the following files automatically.

1. atlas.out.gz2. nvram_common.txt3. nvram_(model#).txt4. nvram_(language).txt

“Atlas_dl.exe” will also query the Atlas to determine what model number the Atlas isand what language to download.

2. Equipment or supplies required:1. PC2. Atlas serial cable3. File : atlas_dl.exe (Latest Version)

NOTE: Make sure you have HyperTerminal turned off or the following utility downloadwill not work!

3. Load the utility program file atals_dl.exe on a floppy or on a local hard drive.

4. Connect serial cable between Atlas and PC “COM1 port”.

5. Turn your computer on and locate where the “atlas_dl.exe” file.

6. Double left click on the “atlas_dl.exe” file.

7. When the file starts to download, the CRT will go blank on the Atlas.

8. After down loading is complete, check all alarm settings and all user advancedconfiguration settings since these are ‘RESET’ by this utility software downloadprocedure.

NOTE: Stop here if you are just upgrading software on a fully functional Atlas monitor orif you have replaced the CPU board.

NOTE: If you have replaced the MAIN board then you must continue with the nextprocedure (DOWNLOADING NVRAM FILES)


Service Section 2

Downloading NVRAM files

NOTE: Perform the following NVRAM downloading procedure if you have replaced theMAIN BOARD. The NVRAM resides on Main Board.

1. HyperTerminal loads the following files:1. cal_init.txt2. common.txt3. (model#).txt4. (language).txt,5. printer.txt (if fitted), or no_printer.txt. (if not fitted)

2. Connect serial cable between Atlas and PC “COM1 port”.

3. Open HyperTerminal program on PC.Hyper Terminal Settings are:

9600 Baud, 8 bit word, 1 stop bitno parity, no flow controlANSI character setFind HyperTerminal in Windows 95 or higherStart-->Programs--> Accessories--> Communication--> HyperTerminal

4. Turn Atlas on.

5. You should see some version information and a prompt: Pangea>

6. Type the following commands at the PANGEA prompt.

1. PANGEA> nvram_cal_init.txt <ENTER>2. PANGEA> nvram_common.txt <ENTER>

NOTE: If the unit you are working on does not have a printer then type the followingcommand on line 3. If the unit has a printer then skip command line 3, instead type thenext command on line 4.

3. PANGEA> nvram_no_printer.txt <ENTER>4. PANGEA> nvram_printer.txt <ENTER>

NOTE: In the following command line 5 you will tell the Atlas what model number it is.

If you have a model 621 then type 200 where you see XXX on command line 5. If you have a model 622 then type 210 where you see XXX on command line 5. If you have a model 623 then type 220 where you see XXX on command line 5.

5. PANGEA> nvram_XXX.txt <ENTER>


Service Section 2

NOTE: XXX in the following command line 6 is where you enter the language(s) you wantthe ATLAS to store in it’s Advanced configuration menu for languages. If you want all thelanguages loaded then you will have to enter a separate command for each language. Ifyou only enter one language then you will only have one language to choose from in theAdvanced Configuration menu for languages. Listed below are the possible languages.

English, French, Spanish, German, Portuguese, Italian, Chinese, Japanese

6. PANGEA> nvram_XXX.txt <ENTER>

NOTE: XXX in the next command line 7 is where you will enter the last three numbers ofthe Atlas serial number. Make sure that you have a space between the command serial andthe three numbers you are entering.

7. PANGEA> nvram set serial XXX <ENTER>

NOTE: To finish downloading the NVRAM files, type the next two commands. You willhave to calibrate the Atlas and perform a complete functional check of the Atlas after youhave finished downloading the NVRAM files.

8. PANGEA> nvram write <ENTER>9. PANGEA> hw reset <ENTER>

NOTE: The firmware is not upgradable on the OEM boards (SpO2 and CO2) boards. If ahigher version software is available, then you will need to replace the OEM board

Section 3

Service Manual 6200-43E REV. B Welch Allyn Service Manual 1

Troubleshooting

NOTE: Review customer complaint and determine if it is safe to plug in the Atlas monitorto AC power and if it is safe to turn on!

Power on Self Test

1. Plug in Atlas with no sensors attached. Verify that AC~ LED indictor is lit.Install paper in printer if fitted.

2. Turn on power and verify the following:1. Green light in power button.2. Loud beep when button pressed.3. Three dashes in SYSTOLIC.4. Three dashes in DIASTOLIC.5. Two dashes in SpO2 (takes several seconds after BP dashes come on).6. Three dashes in PULSE (takes several seconds after BP dashes come on).7. Single bar at the bottom of Plethysmograph.8. No lights in TEMP.9. No lights in ALARMS OFF buttons.10. X lit on AUTO.11. CRT display comes on slowly if cold, quickly if still warm from last use.12. May see version string in center if comes on quickly. It is not a problem if not seen because it comes on slowly.

3. On the CRT you should see:1. Three dashes for Heart Rate2. Heart symbol3. Lead select symbol4. Scale bar5. One or two lines of dashes for waveforms – depends upon settings.6. Three dashes for MAP – or blank, depends upon settings.7. Error message(s) at bottom of screen?

4. On models 622 or 623, disconnect AC cable. You should be no change except theAC~ LED indicator will be unlit. If errors of low, very low or depleted battery, or ifsystem dies, plug back in and let unit charge with unit turned off repeat test in 2hours.

5. Plug the monitor back into AC.

Section 3

2 Welch Allyn Service Manual Service Manual 6200-43E REV. B

Troubleshooting

Menu Functional Test

1. Press DATE/TIME button to enter Menu page. Press TREND button to access theAdvanced Configuration menu.

2. Write down all configuration settings so that they can be reset to customer preferenceslater. If you have a printer press the PRINTER button to print out customer configurationsettings.

3. Set language to your native tongue if necessary to allow you to write down the othersettings. The top item is always the language, press either SET buttons to step throughlist.

4. Press TREND button to return to idle screen. Press DATE/TIME button and verify thatdate and time are correct. Set date and time if necessary.

NOTE: An incorrect date may indicate a battery problem. If date was incorrect, turn offunit, disconnect AC power cable, wait 5 minutes then reconnect the power cable. TurnAtlas on. Check date again. If date comes back incorrect on model 621 then replace mainboard. On model 622 and 623, if battery was not dead then replace main board.

5. Press Date/Time button to return to waveform screen if needed.

6. Press DATE/TIME button then press LEAD SELECT button to access service mode

7. Version/configuration data is in lower half of menu, write it all down.

8. Press SELECT button to highlight Reset to factory defaults.

9. Press BP START/CANCEL button to reset configuration.

10. Press TREND button to return to idle screen.

11. Press DATE/TIME button then press TREND button to access the AdvancedConfiguration menu.

12.Set language to your native tongue if necessary

NOTE: We have just reset the monitor to factory defaults. Compare settings to factorydefaults appropriate for the country in Operator manual. If the factory defaults do notmatch then that my indicate a memory problem. Changing only the language should notchange any of the other factory default settings.

13. Press DATE/TIME button then press LEAD SELECT button to access service mode.

14. Press SELECT button to highlight CRT test pattern.

Section 3


Troubleshooting

15.Press BP START/CANCEL button to show test pattern. Examine display. Press any keyto end display.

16.Press Select button to highlight Printer test pattern (if fitted). Press BP START/CANCELbutton to start test pattern. Printer should print a test pattern. Press any key to enddisplay. Examine printout.

17.Press Select button to highlight LED test. Press AUTO button to turn on all LEDs.Press BP START/CANCEL button to show automatic test pattern. Watch for a while,look for glitches in pattern. Press Set button to go to manual mode and step throughindividual segments if needed to observe a problem.

18.Press Select button to highlight Button test. Press BP START/CANCEL button tostart test. Press every button on system, press BP START/CANCEL button last.Verify that buttons match up with their names and that all buttons are functional.

NOTE: If name does not correspond to the button pushed then this may indicate memorycorruption. You may need to replace the main board

19.Press Select button to highlight Display A/D channels. Press Set button and writedown all values for each of the four screens for later review. Press Trend button toreturn to Idle screen.

Section 3


Troubleshooting

BP Test

1. Press DATE/TIME button then press TREND button to access the AdvancedConfiguration menu. Press Select button to highlight Initial pressure. Press Set button tochange Initial pressure to 280 mmHg. Press Select button to highlight MAP. Press Setbutton to change MAP to Yes. Press TREND button to return to idle screen.

2. Connect the BP port to the BP simulator. Set the simulator for a normal reading(140/80, 100BPM, NSR). Press BP START/CANCEL button. Atlas should start topump and display a manometer value in SYSTOLIC LED; this value should trackand be very close to pressure displayed by manometer on BP simulator (if fitted).Largest number shown in SYSTOLIC LED should be very close to the Initialpressure setting recorded above from Advanced Configuration. System should stepdown pressure, showing step values in SYSTOLIC LED display, and then the correctSYSTOLIC and DIASTOLIC values. System may show MAP value depending uponcountry language setting.

3. Press BP START/CANCEL button. System should start pump, display manometervalue in SYSTOLIC LED. This value should track and be very close to pressuredisplayed by manometer in BP simulator (if fitted). Largest number shown inSYSTOLIC should be very close to the Initial pressure setting of 280 mmHg. Ifpressure shown exceeds 300 mmHg then recalibrate BP.

4. System should step down pressure, showing step values in SYSTOLIC LED andthen display correct SYSTOLIC and DIASTOLIC values. System should show MAPvalue. MAP value should match what is shown by simulator.

5. Set simulator to (120/70, 60 BPM, NSR).

6. Press the AUTO button. The X manual BP cycle indicator will go out and the 1 minuteauto BP cycle indicator will flash for 10 seconds. 20 seconds after the 1 minute auto BPcycle indicator stops flashing, BP measurement starts.

7. Verify the BP reading. If BP measurement incorrect recalibrate.

8. No less than 30 seconds after completing the measurement another measurementshould start. While it is pumping up, press the BP START/CANCEL button.Measurement should stop immediately and pressure should be dumped (as seen onthe simulator manometer).

9. Press AUTO button and X manual BP cycle indicator should light (not flashing).

10.Disconnect the tubing from the BP port on the Atlas. Press BP START/CANCELbutton and note the time (to the second) when the Atlas aborts the BP cycle and givesyou an alarm. It should take no longer than 1 minute. Turn Atlas off.

Section 3


Troubleshooting

Static Manometer Accuracy Test

Required materials.1. Serial interface cable2. PC with HyperTerminal (Windows 95 or above)3. 500cc vessel with inflation system.4. Calibrated manometer

1. Turn computer on and activate Hyper terminal.Hyper Terminal Settings are:

9600 Baud, 8 bit word, 1 stop bitno parity, no flow controlANSI character setStart-->Programs--> Accessories--> Communication--> HyperTerminal

2. Turn Atlas on. Refer to Figure 2.1 in Section 2 for inflation setup.

3. Enter the following commands at the PANGEA> prompt.PANGEA> bp safety off <ENTER>PANGEA> bp valve close <ENTER>

4. Pressurize the Atlas monitor to the applied pressures in Table 3.1 below.

5. To compare the applied pressure to the transducer readings use the following command.PANGEA> bp press <ENTER>

Table 3.1

6. Verify that the primary transducer and secondary transducer are within thespecifications listed in the Table 3.1.

NOTE: The Atlas monitor will return a response to the computer screen as follows.If you tested at the 50mmHg pressure you would receive a message similar to: px = 5279sx = 5305 x 0.01. Where px is the primary transducer and 5279 = 52.79 mmHg and sx isthe secondary transducer and 5305 = 53.05 mmHg.

Applied Pressure Primary Transducer Safety Transducer

0 mmHg ± 0.75 mmHg ± 1.0 mmHg




Section 3


Troubleshooting

BP Leak Test

NOTE: Unit must not leak more than 5 mmHg in a 15 second interval while attached to a100cc test cavity pressurized at 50 mmHg, 150 mmHg and 250 mmHg.

Required Materials: 100cc test cavity (+10cc/-0cc), stopwatch, squeeze bulb, calibratedmanometer.

1. Connect Atlas to 100cc test volume and calibrated manometer as shown in Section 2,Figure 2.1.

2. Turn Atlas on.

3. Press DATE/TIME button then press LEAD SELECT button to access the Service Mode.

4. Press SELECT button and choose Verify manometer.

5. Pressurize the Atlas with squeeze bulb to 50mmHg and allow reading to stabilize.

6. Observe pressure for 15 seconds.

6. Unit should not leak more than 5mmHg during this time.

7. Repeat this process at 150mmHg and 200mmHg.

Over 15 mmHg Test

NOTE: Atlas hardware must detect if the pneumatic system has been pressurized greaterthan 15 mmHg for more than 155 seconds but less than 180 seconds.

Required Materials: 500cc test cavity(+10cc/-0cc), stopwatch, squeeze bulb, calibratedmanometer.

1. Connect Atlas to 500cc test volume and calibrated manometer as shown in Section 2,page 4, Figure 2.1.

2. Turn Atlas on. Press DATE/TIME button then press LEAD SELECT button to access theService Mode. Press SELECT button and choose Verify manometer.

3. Pressurize the Atlas with squeeze bulb to any pressure above 15 mmHg and maintainthat pressure during the test. Start the stop watch.

4. Verify that the valve opens and pressure drops between 155 seconds and 180 seconds.

5. Turn Atlas off.

Section 3


Troubleshooting

BP Dump Verification Test

1. Connect the Atlas to a 500 cc vessel as shown in Section 2, Figure 2.1.

2. Turn Atlas on.

3. Press DATE/TIME button then press LEAD SELECT button to access the Service Mode.

4. Select Verify manometer.

5. Pressurize the Atlas to just over 260 mmHg.

6. Allow reading to stabilize for 15 seconds.

7. Ensure the reading is still over 260 mmHg.

8. Start the stop watch when you press the SELECT button. When the SELECT button ispressed the Atlas will start the pressure dump.

9. Verify that the pressure drops to below 15 mmHg within 10 seconds.

Hardware Fail Safe Tests

NOTE: Atlas hardware must detect over pressure on unit pneumatic system between 296.0mmHg and 330.0 mmHg.

1. Connect the Atlas for testing as shown in Section 2, Figure 2.1

2. Turn Atlas on.

3. Press CLOCK/DATE button then press LEAD SELECT button to access Service Mode.

4. Press SET button to highlight the Manometer.

5. Pump system up and record at what pressure the Atlas dumps.

Section 3


Troubleshooting

ECG/Respiration Test

Note: Simulator should support ECG impedance respiration.

1. Cycle power on Atlas, connect a 5 lead cable set to the simulator. Configure thesimulator for NSR, 100BPM and Impedance Respiration set at 20.

2. Press DATE/TIME button then press TREND button to access Advanced Configurationmenu.

3. Press Select button to highlight ECG lead set and press Set button to select 5 wire.

4. Set ECG gain to Automatic, ECG speed to 25mm/s, ECG bandwidth to Monitor, Secondtrace selection to ECG.


6. Verify you see: 1. ECG cascading onto second line2. Scale bar on top left of CRT3. Heart rate displayed as set on simulator4. Lead Selected = II5. Pulse tone high pitched

7. Press LEAD SELECT button and step through each of the lead settings.(I,II,III,aVR,aVL,aVF,V)

8. Verify that you see a different ECG waveforms for each lead selected.Heart Rate will go to dashes and alarms on some leads.

9. Set lead selected to II.

10.Press DATE/TIME button then press TREND button to access Advanced Configurationmenu.

11.Change Second trace selection to Respiration. Press TREND button to return to idlescreen.

12.Verify that you see: 1. ECG on top line2. Scale bar on left of top line3. Heart rate displayed as set on simulator4. Lead Selected = II5. Pulse tone high pitched6. Respiration trace on second line and rate as set on simulator7. Respiration rate displayed on CRT as set on simulator.

13.Disconnect ECG simulator.

Section 3


Troubleshooting

SpO2 Test

1. Turn SpO2 alarms on.

2. Connect SpO2 cable to simulator.

3. Set simulator pulse rate between 21 and 49 beats/minute and verify that pulse rate iscorrect ±3 beats/minute or 3%, whichever is greater.

4. Set SpO2 between 70% and 100% and verify that SpO2 is accurate ±2 digits.

Temperature Test

1. Without anything connected to the temperature connector on the Atlas, verify that thetemperature LED is blank.

2. Using the tables below, connect the resistors to a 1/4 inch male mono plug and verifytemperature readings.

3. Connect the temperature probe to the Atlas monitor. You should see the display readroom ambient temperature. Disconnect the probe and verify you see dashes is thedisplay and that there are no alarms.

Temperature ± 0.1 °C Temperature ± 00.1 °F Resistor Value ± 0.1%

29.3 °C 84.7 °F 1870 ohm

33.9 °C 93.0 °F 1540 ohm

37.1 °C 98.8 °F 1350 ohm

40.0 °C 104 °F 1200 ohm

44.6 °C 112 °F 1000 ohm

Table3.2

Section 3


Troubleshooting

CO2 Functional Test

1. Press DATE/TIME button then press TREND button to access Advanced Configurationmenu

2. Set Second trace selection to CO2.


4. Insert watertrap with tubing attached.

5. Verify that you:1. Hear pump motor start.2. See solid line waveform on lower trace.3. See dashes in Respiration Rate.4. See dashes in mmHg (or % or kPa, as configured).

6. Breathe gently and repeatedly over end of tubing.

7. Verify that you:1. See waveform within seconds of breathing.2. See respiration rate non zero within one minute.3. See CO2 concentration non zero within one minute.

Battery Functional Test

1. System must have been plugged in for 24 hours to guarantee that the battery is fullycharged. But, for now we can do a functional test as follows.

2. Press DATE/TIME button then press LEAD SELECT button to access Service Modemenu.

3. Press SELECT button to highlight Battery test.

4. Verify that the menu reports:1. Battery Low Time XXX2. Battery Dead Time YYY

NOTE: These are the results from the last battery test. The Battery Low Time is the time inhours and minutes that the battery ran in the last test until the Low Battery alarm started,and the Battery Dead Time is the time from the beginning of the Low Battery Alarm untilthe system turned itself off when the battery voltage reached the cutoff level.

NOTE: 2:08 means 128 minutes which is the default setting indicating a battery test hasnever been made before.

Section 3


Troubleshooting

5. Write down the Battery Low Time and Battery Dead Time.

6. Unplug AC cord to start battery test.

7. The timers will begin the moment you unplug the AC cord. Leave the system on until itpowers down by itself automatically. Plug Atlas into AC and turn the Atlas on, enter theService Mode menu, select Battery Test again, and write down the new values. Comparethese to the previous values, and to the minimum specification:

1. Battery Low Time = 1 Hour2. Battery Dead Time = 10 Minute minimums

8. Replace the battery if performance falls below specification.

Printer Functional Test

NOTE: Configuration settings for printing are different for text pages than for waveforms.

1. Connect ECG simulator to generate a sample waveform.

2. Press PRINT button and look at waveform printout. Look for darkness, thicknessof lines, legibility of text, blurring, “blooming” of text.

3. If waveform or printed text needs to be darker or lighter, go to Section 2, page 10 forprinter calibration.

Section 3


Troubleshooting

Software/Firmware

1. Review versions written down earlier and compare to latest available. Makesure that all components are compatible with each other. See section 2, page 12, Table

2.3.

ECG Alarms Test

1. Turn the Atlas on. Verify you hear the power on tone.

2. Press DATE/TIME button then press TREND button to access Advanced Configurationmenu. Press SELECT button and scroll down to Second Trace. Press SET button and setthe second trace to ECG.

3. Connect ECG simulator to the Atlas. Set the ECG rate on simulator to 60beats/minute, normal sinus wave.

4. Verify you hear the heart rate beep at a constant high pitch.

5. Press SpO2 - + button “-“ 8 times. Should get quieter and finally silent.

6. Press DATE/TIME button then press PRINT button to Save settings.

7. Turn system off and back on.

8. Verify pulse tone is silent even though heart rate is shown.

9. Press SpO2 volume button “+” 8 times. Should get audible tone and then louder.

10.Disconnect ECG cable.

11.Verify you hear audio alarm and see error message “ECG Lead fault” and that yousee the three LED bars flash where the heart rate was on the CRT.

12.Press HR ALARMS Off button.

13.Verify that the audio alarm stops and that the visual alarm on the CRT disappears.

14.Press HR Alarms off button. Connect ECG simulator to the Atlas and set simulator tonormal sinus, 60 beats/minute.

15.Press left SELECT button and the HI heart rate alarm parameter will flash. Set the highheart rate alarm to 55 on the Atlas and press the select button again and the Low heartparameter will flash. Press SELECT button one more time to return to the default screen.

Section 3


Troubleshooting

16.Verify that you hear the audio alarm and that you see the numeric value flashing inthe upper right portion of the monitor.

17.Return the high alarm limit to 120 beats/minute and press SELECT button. Verify theaudio alarm should is silent and the numeric visual alarm stopped flashing.

18.Press SELECT button twice. Verify the numeric low alarm parameter is flashing.Set the LOW alarm for 65 beats/minute by pressing the up SET button. Press SELECTbutton.

19.Verify that you hear the audio alarm and that you see the numeric value flashing inthe upper right portion of the monitor.

20. Turn Atlas off.

Section 3


Troubleshooting

Respiration Alarms Test

1. Turn Atlas on.

2. Press DATE/TIME button then press TREND button to access Advanced Configurationmenu. Press SELECT button to scroll down to Second Trace. Press SET button and setsecond trace to respiration. Press TREND button to return to default screen.

3. Set respiration on simulator to 20 respirations/minute and connect to the Atlas.

4. Press left SELECT button three times and set the hi respiration alarm to less than 20.Wait 10 seconds and the CRT will return to the default screen.

5. Verify that you hear the audio alarm and that the respiration numeric value on the CRTis flashing.

6. Press CO2/RESP ALARMS off button.

7. Verify that the audio alarms are silent, the visual numeric alarm stopped flashing andthat the red LED in the CO2/RESP ALARM off button is lit.

9. Press left SELECT button three times to access hi respiration alarms and set hi alarm to30.

10.Wait ten seconds and the CRT will return to the default screen.

11.Press CO2/RESP ALARM off then press left SELECT button four times to access lowrespiration alarms and set low respiration alarms to 25.

12. Wait 10 seconds and CRT will return to the default screen.

13.Verify that you hear the audio alarm and that the respiration numeric value on the CRTis flashing.

14.Press CO2/RESP ALARMS off button.

15.Verify that the audio alarms are silent, the visual numeric alarm stopped flashing andthat the red LED in the CO2/RESP ALARM off button is lit.

16. Turn Atlas off.

Section 3


Troubleshooting

SpO2 Alarm Test

1. Turn Atlas on.

2. Attach SpO2 to a simulator and set for 95% SpO2.

3. Verify that you hear a pulse rate beep and that it is a different pitched tone than theECG pulse beep.

4. Change SpO2 % setting on the simulator. Verify that tone changes pitch up or downtracking simulator setting.

5. Press lower far right Select button until SpO2 LO is flashing, press right Set button UPto change SpO2 LO setting to 99.

6. Wait until SpO2 LO LED stops flashing.

7. Verify that you hear the SpO2 LO limit alarm.

8. Press Alarm Volume button “-“ eight times. Verify tones gets quieter but not silent.

9. Press Alarm Volume button “+“ eight times. Verify the tone gets louder.

10.Disconnect SpO2 cable from simulator and verify that the visual alarm SpO2 cablenot detected” is displayed on the bottom left side of CRT. Verify that you hear theaudio alarm.

11.Press SpO2 ALARMS Off button.

12. Verify that the audio alarm sound is silent , that you do not see the visual alarm message “ SpO2 cable not detected” on the CRT and that the LED in the SpO2 ALARMS OFF button is on.

13.Turn Atlas off.

14.Disconnect SpO2 cable from Atlas.

Section 3


Troubleshooting

Silence Alarm Test

1. Turn Atlas on.

2. Press DATE/TIME button then press TREND button to access AdvancedConfiguration menu. Press SELECT button until Silence Duration is highlighted.Press SET button until 90 seconds is highlighted. Press TREND button to go todefault screen.

3. Connect ECG simulator to the Atlas. Set the ECG rate on simulator to 60beats/minute, normal sinus wave.

4. Press left SELECT button once and set the HI alarm to 55 beats/minute.

5. Wait until you hear the audio alarm.

6. Press Silence button and start stopwatch. Verify that the alarm returns at for 90seconds.

7. Turn Atlas off.

CO2/RESP Test

1. Turn Atlas on

2. Press DATE/TIME button then press TREND button to access the Advanced Configuration menu.

3. Set Second trace selection to CO2

4. Press TREND button to return to idle.

5. Insert CO2 watertrap with hose.

6. Breath into hose until a waveform is displayed.

7. Remove CO2 watertrap .

8. Verify you hear the audio alarm and that you see in the visual alarm “ CO2 watertrapnotdetected” in the bottom left portion of CRT.

9. Press the “ CO2/RESP ALARMS off ” button. Verify that the audio alarm goes silent, thevisual alarm goes out and the red LED in the CO2/RESP ALARMS off button is lit.

10.Turn Atlas off.

Section 3


Troubleshooting

Blood Pressure Alarm Test

1. Turn Atlas on.

2. With no hose connected to the BP port, press BP Start/Cancel button.

3. Place finger over BP port. This will block the flow causing the Atlas to detect an overpressure.

4. Verify that you hear the audio alarm, that the visual alarm “ Check Blood PressureCuff “ appears in the lower left portion of the CRT and that the SYSTOLIC andDIASTOLIC LED displays are flashing.

5. Press the BP ALARMS OFF button.

6. Verify the audio alarm is silent, the visual alarms have turned off and that the red LED inthe BP ALARMS OFF button is lit.

7. Press the BP ALARMS off button then press the BP START/CANCEL button twice.

8. Press BP START/CANCEL button and let Atlas run without anything attached to the BPport.

9. Verify at 60 seconds that you hear the audio alarm and that the visual alarm “ CheckBlood Pressure Cuff “ appears in the lower left portion of the CRT and that theSYSTOLIC and DIASTOLIC LED displays are flashing.

10.Press the BP ALARMS OFF button.

11.Verify the audio alarm is silent, the visual alarms have turned off and that the red LED inthe BP ALARMS OFF button is lit.

12.Press the BP ALARMS off button then press the BP START/CANCEL button twice.

13.Connect a BP simulator to the Atlas BP port. Set the simulator for a normal reading(140/80, 100BPM, NSR).

14.Press the right SELECT button twice and the current SYSTOLIC HI alarm value will beflashing.

15.Press the SET button to set SYSTOLIC HI alarm to 130.

16.Press BP START/CANCEL button.

17.Verify that you hear the audio alarm and that the numeric value in the SYSTOLIC LEDdisplay is flashing.

Section 3


Troubleshooting


19.Verify the audio alarm is silent, the numeric value in the SYSTOLIC LED display is stillflashing and that the red LED in the BP ALARMS OFF button is lit.

20.Reset the SYSTOLIC HI alarm to 200 (factory default). Press BP ALARMS OFF button.

21.Press the right SELECT button three times and the numeric value in the SYSTOLIC LOalarm LED display will be flashing.

22.Press the SET button to set the SYSTOLIC BP LO alarm to 160.


24.Verify that you hear the audio alarm and that the numeric value in the SYSTOLIC LEDdisplay is flashing.


26.Verify the audio alarm is silent, the numeric value in the SYSTOLIC LED display is stillflashing and that the red LED in the BP ALARMS OFF button is lit.

27. Reset SYSTOLIC LO alarm to 70 (Factory default). Press BP ALARMS OFF button.

28.Press right SELECT button four times and the numeric value in DIASTOLIC HI alarmLED display will be flashing.

29.Press the SET button and set DIASTOLIC HI alarm to 70.


31.Verify that you hear the audio alarm and that the numeric value in the DIASTOLIC HILED display is flashing.


33.Verify the audio alarm is silent, the numeric value in the DIASTOLIC LED display is stillflashing and that the red LED in the BP ALARMS OFF button is lit.

34.Reset DIASTOLIC hi alarm to 155 (Factory Default).

35.Press right SET button five times and the numeric value in the DIASTOLIC LO alarmLED display will be flashing.

36.Press SET button and set DIASTOLIC LO alarm to 90. Press BP ALARMS OFF button.


Section 3


Troubleshooting

38. Verify that you hear the audio alarm and that the numeric value in DIASTOLIC LED display is flashing.

39. Press the BP ALARMS OFF button.

40. Verify the audio alarm is silent, the numeric value in the DIASTOLIC display is still flashing and that the red LED in the BP ALARMS BUTTON is lit.

41. Reset DIASTOLIC LO alarm to 50 (Factory Default).

42. Turn Atlas off.

Section 3


Troubleshooting

Failures Possible Solutions

Power on:

Unit does not power up, no AC on LED,no Power on LED.

1 Check AC power cord.

2 Verify connection from power supply to mainboard.

3 Verify +12V output from power supply.

4 Replace Power Supply.

5 Check Cable from main board to display board.

6 Replace Display board.

Unit does not power up - AC and Poweron LED on

1 Check that the CPU board is fully seated

2 Replace CPU board.

3 Check for conformal coating in J4 header - replaceboard if coating is found.

4 Replace Main board.


Unit powers up intermittently or Powerbutton sticks or cannot duplicate poweron problem But unit passes burn in.

1 Remove flashing on Bezel at power button.

2 Check for severely tipped power button LED ondisplay board.

Unit powers up - but no image on CRT. 1 Check for conformal coating in J4 header - replaceboard if coating is found.


3 Check for correct installation of connection frommain board to deflection board. If installed withpin 1 in the pin 2 socket deflection board will bedamaged. If installed with pin 1 out of socketdeflection board will be OK

4 Replace CRT assembly.

Section 3


Troubleshooting


Display:

Segment out, LED out, Buttons do notwork.


All or most segments stay on at powerup.


2 Check cable from Display board to Main board.


CRT:

CRT image rotated or poor alignment. 1 Rotate yoke and/or adjust magnets

Only see a dot in the center of thescreen.

1 Check cable from yoke to CRT board.

2 Replace Deflection board.

Only see a horizontal line in the centerof the screen.

1 Check cable from yoke to CRT board.


No image - CRT to Main boardconnection OK.

1 Check flex-cable from Deflection board to tube.

2 Check high voltage anode connection


4 Replace tube.


No image - Glow at bottom of screen. 1 Check for conformal coating in J4 header - replaceboard if coating is found.


Dark vertical scan lines in image. 1 Replace CPU board.

Section 3


Troubleshooting


Printer:

Motor does not run. 1 Check that unit is configured for printer. (CRTimage will freeze for 10 seconds if configured forno printer)

2 Check cable from printer PCB to motor.

3 Check cable from printer PCB to Main board.

4 Check motor gear alignment to the first plastic gear

5 Check for paper jam.

6 Replace printer PCB.

7 Replace CPU.

Motor runs or chatters - paper does notadvance.

1 Check for missing dowel pin in roller.

2 Check for missing bearings/gears.


4 Replace CPU.

Light print or no print. 1 Check that paper is properly installed (thermal sidevisable).

2 Check cable from printer PCB to print head

3 Check printer-strobe-width in NVRAM( couldindicate error in printer thermistor circuit.) If low,check printer PCB, Main board, and CPU board.

4 Check mechanical assembly for proper force ofprinthead on paper.

Prints gibberish. 1 Reseat CPU board.


3 Replace Printer to Main board cable


Section 3


Troubleshooting


Safety:

Earth resistance over limit. 1 Check ground wire from motor to power supply can.

2 Tighten screws that attach ground tabs to power supplycan.

3 Tighten screws holding power supply PCB to can.

4 Tighten quick connects on AC harness in powersupply.

5 Replace power supply PCB

Blood Pressure:

Leak test - Fails Leak Specification. 1 Run individual test. If unit passes repeat all tests.

2 Check seals @ tubing in BP assembly

3 Check for lifted pins on the CPU connector JP8.

4 Replace Check valve.

Leak test - 'Can't pump beyond xxx.xx'. 1 Verify unit can pump beyond 300mmHg then: Retest

2 If pump will not reach 300 mmHg, then:

A. Check for correct direction on check valve.

B. Check for possible leaks.

C. Check for pinched tubing.

D. Replace pump.

Manometer Accuracy - 'Can't pumpbeyond xxx.xx'.

1 Verify unit can pump beyond 300mmHg then: Retest

2 If pump will not reach 300 mmHg then:




D. Replace pump.

3 Check for lifted pins on the CPU connector JP8.

Section 3


Troubleshooting


Manometer Accuracy - Fails AccuracySpecification.

1 Replace Main board. Faulty transducer or amp.

Deflation Profile. 1 Replace dump valve.

2 Replace Main board. (Valve drive circuitry fault)

Overpressure Limit - 'Can't pumpbeyond xxx.xx'.

1 Verify unit can pump beyond 300mmHg then:Retest

2 If pump will not reach 300 mmHg then:




D. Replace pump.

Overpressure Limit - Fails AccuracySpecification.

1 Replace Main board. Fault with pressuretransducer, amplifier, or comparator.


Dwell time. 1 Replace Main board. - Fault with 15mmHg detectcircuit.

2 Replace CPU board. - Fault with timer.

Dwell Pressure. 1 Replace Main board- If fault with 15mmHg detectcircuit

2 Replace CPU board

Section 3


Troubleshooting


SpO2:

No Signal - SpO2 fault message on CRT 1 Plug in finger cuff, connect to your finger & checkfor function. If function is normal retest. If notcontinue to step 2.

2 Check cables - SpO2 board to Main board, Spo2board to Bezel.

3 Replace Main board.

4 Replace SpO2 board.


SpO2 signal accuracy 1 If Nellcor, check ribbon cable and harness. Replaceas needed.

2 Replace SpO2 board.

ETCO2:

Specification limits fail - Flow rate orPercentage.

1 Perform calibration. If that does not fix then gotostep 2.

2 Replace Pryon board.

ETCO2 failure 1 Check for broken switch in trap receptacle.

2 Verify board ID in service mode.

3 Perform functional test of ETCO2. Verify pumpcomes on when switch in water trap receptacle isactivated. If switch is intermittent replace thereceptacle.

4 Replace Pryon board.


Temperature:

1 Check connection - main board to temperature jack.

2 Check pins in Temperature harness for correctseating.

3 Replace Main board

Welch Allyn Atlas Monitor 1Service Manual 6200-43E Rev. B

Disassembly and RepairSection 4

About Section 4

This section is a guide for disassembly and reassembly of the Atlas Monitor. Al-ways refer to current revision schematics, diagrams and final safety test proceduresbefore attempting to service this device.

Do not attempt to service this instrument unless you have received Service Train-ing from Welch Allyn or an authorized agent, and are equipped with approvedprocesses and test equipment. For more information about this call the WelchAllyn Customer Service phone number listed in Section 1 of this manual.

General:The outside housing is removed to provide full access to all internal printed cir-cuit boards and other components. Most of these are held in position with thesurrounding “E-Pac” foam. E-Pac provides shock absorbtion, ventillation chan-nels, and spaces for the components and boards. Pneumatic tubing and cablesmust be placed correctly in E-Pac to avoid problems with pinched tubing.

Problems During Service:A Technical Support phone number is listed in Section 1 of this manual to answerquestions you may have during the servicing of the Atlas Monitor.

Printer:Print-head, printer motor, and printer roller can be replaced as necessary.

Printed Circuit Boards:There are no component level repairs for the Printed Circuit boards. These arereplaced if found to be defective. During the warranty period, boards that are foundto be defective should be returned to Welch Allyn.

CRT:The CRT and CRT Deflection Board are aligned at the factory and as such are re-placed as a matched set if one or the other should fail in service.

EXERCISE EXTREME CAUTION WHENSERVICING THE ATLAS MONITOR! THECRT ASSEMBLY AND CRT DEFLECTIONBOARD OPERATE ON APPROXIMATELY8,000 VOLTS.


Section 4


Disassembly and Repair

1. Open the paper door and removethe paper roll. Close paper door.

.

3. Remove 4 Torx Machine screwswith Torx - 10 screw driver.

4. Open the rear housing anddisconnect 2 ground wires fromground lug as well as printer cable.

MODEL 200 Dissassembly.

Unplug Monitor fromMains before disassem-bly! EXERCISE EXTREMECAUTION WHEN SERVICINGTHE ATLAS MONITOR! THECRT ASSEMBLY AND CRT DE-FLECTION BOARD OPERATEON APPROXIMATELY 8,000VOLTS.

ESD: Circuit boards are sensitiveto static electricity. Use wrist strap,ESD mats and ESD storage bags.

2. Place Monitor on a foam padto protect the front of the unitand the pressure fitting on thefront of the unit.

Caution: Do not pull display cable.

Model 200



5. Unplug the printer cable fromjack J7 of the Main PCB.

6. Remove Pump section.

7. Unplug Display Board Cablefrom jack J8 of the Main PCB.

Note: Make sure this end of the cable isinstalled in J8 during reassembly sothat cable folds will be correct.


Section 4



9. Unplug CPU/PCB from Main PCBPCA connector J4.

8. Remove E-Pac from over the CRT.

10. Unplug CRT socket board.

Do not bend pins.



11. Protect CRT pins with cap T-XXXXX

12. Unplug Yoke cables from connector J2 of CRT Deflection Board.

13. Unplug CRT Deflection Board from Main PCB with connector tool T-16654

Do not bend pins.


Section 4



14. Unplug 4 connectors from side of Main PCB.

15. Remove Power Supply assembly.

16. Remove alarm speaker.



17. Remove Main PCB from E-Pac and disconnect tubing and connectors.

18. Disconnect SpO2 board and remove it from E-Pac.

19. Remove main E-Pac section.

NOTE: Nonin board is shown.


Section 4



20. Disconnect tubing from fitting.

21. Remove SpO2 connector from front panel.

22. Remove CRT ground wire screwwand washer.



23. Remove opposite CRT mounting screw and remove CRT.

24. Remove Keypad circuit board.

25. Remove Display PCB.


Section 4



26. Remove soft keys from Bezel.

27. Unscrew Alarm Silence Button holding screw to remove Silence button.

28. Remove printer by depressing tab.



29. Slide printer out of rear housing.

31. To remove printhead, disconnectcable from printer PCB. Lift spring andremove printhead from printer frame.

30. Unplug motor connector. For reassembly, placeconnector on motor soorange wire is nearmounting screw.


Section 4



33. Remove connector.

Flex circuit is delicate. There-fore, do not pull on connector..Use small screwdriver to pryconnector apart.

34. For reassembly of printhead, use long nose pliers to attach cable to eliminate stress on flex circuit of printhead.

32. Remove backing plate.



35. Slide Power Supply cases apart.

36. Location of Power Supply fuse.

MODEL 200 Re-assembly.

Reassemble in reverse order ofdisassembly with special attentionto paths for cables and tubing.

1.

Two types of screws are used.Display PCB is fastened with selftap.


Section 4



2. Detail of Pump/Valve/CheckValve subassembly for reassembly.

3. Printer chassis rests on lip at back of case.

4. The IEC connector must be centered in the hole before 4 screws can be installed.



Other models dissassembly/reassembly.Due to the similarities between theATLAS models, only key points areshown. Refer to the latest revisioninterconnect drawing, schematics, andlayouts when servicing this product.

5. Plug MCU/PCB in like this.

Welch Allyn Atlas Monitor 1Service Manual 6200-43E Rev B

APPENDIX A THEORY OF OPERATION

Theory of Operation – Model 621 – 622 - 623

1 Power Supply Circuits ................................................................................................... 31.1 Model 621 .............................................................................................................. 3

1.1.1 On/Off Circuits – Backup Regulator and Micro-Controller................................ 31.1.2 Buck Converter ................................................................................................ 51.1.3 Linear Regulators – 5VDC and 3.3VDC ............................................................. 6

1.2 Model 622 and Model 623 ...................................................................................... 61.2.1 On/Off Circuits ................................................................................................ 71.2.2 +12V Boost Converter ...................................................................................... 91.2.3 Battery Charger: ............................................................................................. 101.2.4 Linear Regulators – 5VDC and 3.3VDC ........................................................... 13

2 Non-Isolated circuits - A/D and Mux ........................................................................... 142.1 A/D – grounded circuits ....................................................................................... 142.2 A/D Mux – grounded circuits ............................................................................... 15

3 NIBP Circuits .............................................................................................................. 163.1 Overview - Safety: ................................................................................................ 163.2 Primary Transducer - Amplifier: ........................................................................... 163.3 Safety Transducer - Amplifier ............................................................................... 17

3.3.1 Current Source: .............................................................................................. 173.3.2 Differential Amplifier and Offset Centering: ................................................... 17

3.4 Hardware Overpressure: ....................................................................................... 183.5 Pump and Relay Drive: ......................................................................................... 19

4 CRT Deflection Board .................................................................................................. 204.1 Overview: ............................................................................................................. 204.2 Vertical Amplifier: ................................................................................................ 21

4.2.1 Ramp Generator: ............................................................................................ 214.2.2 Vertical Amplifier: ......................................................................................... 224.2.3 Zero Adjust: ................................................................................................... 22

4.3 Horizontal Amplifier: ........................................................................................... 234.3.1 Horizontal Gain: ............................................................................................. 234.3.2 Grid Voltages: ................................................................................................ 23

4.4 Video Amplifier: ................................................................................................... 245 Recorder Electronics ................................................................................................... 25

5.1 Overview: ............................................................................................................. 255.2 Power Supply – 24 Switcher ................................................................................. 265.3 Motor Driver: ........................................................................................................ 275.4 Temperature Amplifier: ........................................................................................ 27

6 Patient Isolated Circuits .............................................................................................. 286.1 Isolated Power ...................................................................................................... 28

6.1.1 Linear Regulators and Filtering – Model 621 .................................................. 296.1.2 Linear Regulators and Filtering – Model 622 and 623 ..................................... 29

6.2 A/D Circuits ......................................................................................................... 316.2.1 PWM A/D ...................................................................................................... 316.2.2 A/D Multiplexer............................................................................................. 32

6.3 Serial Communication .......................................................................................... 336.4 Signal Isolation ..................................................................................................... 346.5 ECG Circuits ......................................................................................................... 35

6.5.1 Overview ....................................................................................................... 356.5.2 Defib Protect, RFI Filtering ............................................................................. 356.5.3 Front End Buffer - 1st Gain Stage ................................................................... 356.5.4 Wilson Network - Lead Select Mux ................................................................ 366.5.5 Differential Amplifier and Slew rate limit ...................................................... 376.5.6 Right Leg Drive Amplifier .............................................................................. 386.5.7 High Pass and Gain Stage ............................................................................... 39

6.6 Temperature Amplifier (Model 622/623 only) ....................................................... 39

2 Welch Allyn Atlas Monitor Service Manual 6200-43E Rev B 2


6.7 Impedance Respiration (Model 622/623 only) ...................................................... 406.7.1 Overview ....................................................................................................... 406.7.2 Signal Source – Current Drive ........................................................................ 406.7.3 Differential Amplifier and Peak Detector ........................................................ 416.7.4 Gain and Filtering .......................................................................................... 42

6.8 SpO2 Circuits ....................................................................................................... 43

1 Power Supply Circuits

1.1 Model 621Atlas Model 621 uses a 50W, medical grade, offline switcher which provides 12VDC from a universal ACinput (85VAC to 264VAC – 50/60Hz). The model 621 can only be powered from external AC.

The following supplies are generated on the Atlas Main Board:+12V DC CRT, input to isolated power supply, misc. analog circuits.

6V DC NIBP Pump and Valve, input to 5V and 3V regulators (5.7V nom).+5V DC Front panel LED’s, misc. logic.

+3.3V DC CPU board.Vbackup: On/Off circuits.

Note: Additional electrically isolated supplies are generated for patient connected circuits.

AC Present

AC/DCConverter

5.7V BuckConverter

BackupRegulator

+6V

+3.3V

LithiumBattery

+5VDCRegulator

+12V

On/Off

Vbackup

Model 621DC/DC CircuitsBlock Diagram

AC+12V

+5V

On/OffControlCircuits

+3.3VDCRegulator

Vb

Q301

1.1.1 On/Off Circuits – Backup Regulator and Micro-ControllerA 3.3V regulator, U304, provides power to the On/Off circuits. This voltage is diode OR’d (D304) withthe lithium backup battery to provide power to the real time clock on the CPU board. The On/Off



circuitry is controlled by the mirocontroller U305. This controller performs the following functions:

1. Monitors the status of the front panel ON-OFF key. If the unit is off and the ON-OFF key is pressed,the controller will drive U10-6 high, which will enable power to the remainder of the instrument.2. At power up, the microcontroller will drive the beeper for about 1 second.3. At power up, the microcontroller will reset Shift Register U2. This will cause the following:a. The front panel LED's are blanked.b. The NIBP pump drive is placed in the off state.4. When the unit is ON the microcontroller will communicate with the system CPU. When the frontpanel ON-OFF key is pressed, the CPU will store away current operating conditions, then issues acommand to the microcontroller to shut instrument power off. U10-6 is driven low which will removepower from the remainder of the instrument.

The instrument is powered on as follows:U305-6 is driven high, which turns transistor Q302 on (output low)Q301 (P-channel MOSFET) ON when the gate is pulled low, then +12V active.Q306 is turned off, allowing the 5.7V buck converter to power on.As 5.7V becomes active, the 5V and 3.3V supplies also become active.

On/Off Control Circuits

Vb

D

Q301

MTP23P06V

2

1

34

U305

D620361-MX10000

2

5

7

4

3

6

1 14

8

9

10

11

12

13ClkIn/Osc1/RB5

TC5/TOCK1

RC3

Vpp/MCLR/RB3

Clkout/Osc2/RB4

RC4

Vdd

Vss

RC2

RC1

RC0

RB2

RB1

RB0

+C3011000uF

R30151.1K

Q302-B

On/Off Switch

VBackup

Speaker-Audio

D

R316100

+ C304330uF

D

+C3281uF

D

Q30

1-G

filt+12V

SwitcherShutdown

+ C3234.7uF

+ C3244.7uF

Lithium

d304-1

R3201.62K

Q3062N7002

3

1

2

BackupBattery

R302100K

On/Off-Key

C303.01uF

D

R314100

U301-comp

R30310K

R31810K

C305.01uF

C325.047uF

U2-Reset

+12V

d304-2

D304MMBD354LT1

1

3

2

PIC-Clk

Q302MMBT3904L

3

1

2

AC+12V

U304

LP2951CD-3.3

873

62

15

4

VINFDBKSHTDN

TAPSENS

VOUTERR

GN

D

On-Off

C322.047uF

PIC-Data

L30147uH

PIC-audio

+ C3021uF

u304-fb

Component Selection:IC’s:U304 LP2951CD-3.3, 3.3V uPower regulator

Not important to use low power device.Chose this part because it is used on Model 622/623.

U305 Microchip PIC16C505-04/SL, programmable microcontroller, low cost.Self contained controller, built in oscillator, power on reset, several I/O lines.May be difficult to find a replacement part, could design into a gate array.

Transistors:Q301 Motorola MTP23P06V, P-channel MOSFET.

Similar rated part available from alternate vendors.Low impedance part chosen, require low voltage drop for minimum interference withCRT deflection circuits.

Q302 3904, general purpose npn transistor.



Q306 2N7002, general purpose low power N-channel MOSFETDiodes:D301 MMBD354, dual schottky.

Low diode drop allows lithium battery to power Real Time Clock as long as possible.Can find lower diode drop schottky (at this low current, typical 10uA drain), butlower diode drop meant increased reverse leakage, then Lithium battery drains toVb when AC is removed.

CapacitorsC301 1000uF Aluminum, general purpose.

C301, L301 filter added to reduce CRT jitter seen when printing, this was onlymarginally successful.

C302 1uF tantalum bypass cap, general purpose.C326 1uF tantalum bypass cap

C326 used to filter On/Off signal to transistor Q302.Without low pass filter, Atlas occasionally powered off during ESD testing.

C304 330uF Aluminum, general purpose.Located near Q305 switching FET to reduce current loop.

C303, 305, 325, 332X7R ceramic, 10%, general purpose bypass.C323, C3244.7uF tantalum bypass caps, output cap required by LP2951 for stability.Inductors:L301 Coilcraft PCV-1-473-03, 47uH, 3Amp – no special requirements.Resistors:R301-R303, R314, 316, 318, 320 general purpose 1/8watt, 1% metal film

1.1.2 Buck ConverterA buck converter is used to generate 6V from the 12VDC output of the offline switcher. The UC3843A(U301), normally a current mode controller, is configured for voltage mode feedback. The UC3843A hasan under-voltage lockout for Vcc<8.5V. The controller operates such that with Vcc less than 8.5V, thereference out is 0V, and will be at 5V with Vcc>8.5V. Then, the reference out (pin 14) can be used as anAC-ON detection signal.

The switching transistor for the buck converter is a P-Channel MOSFET (Q305). The output drive of thecontroller is the wrong polarity for driving a P-Channel MOSFET in a step down mode. Therefore,transistor Q303 is added to invert the PWM out signal. Fast turn-on of Q305 is provided when Q303 islow, fast turn-off is though Q304 (configured as an emitter follower). The PWM controller includes aninternal 2.5V reference. Voltage regulation is controlled with sampling resistor R304 and R305 such thatVout = 2.5V*(1+R304/R305) = 5.68V. At power down pin U301-1 (comp pin) is pulled low. This willcause U301-10 to go low, which turns Q305 off and disables power to +6V.



5Vref

U301-fb

U301-5

ACON

U30

1-ou

tQ303MMBT3904L

3

1

2C309.047uF

R3077.5K

+6V Buck(5.68V nominal)

R31110K

LC FilteredAC/DC converteroutput

Q304-e

filt+12V

U301UC3843A

3

57

14

1

10

812

911

VFB

ISENSERT/CT

VREF

COMP

OUT

PW

R-G

ND

Vcc

GN

DV

c

U301-osc

Q305MTP23P06V

2

1

34

C327.047uF

D303

MBRS340

C326.047uF

C313.047uF

Q303-c

U301-comp

C3112200pF

R304127K

C3102200pF

Q305-s

R3121.96K

R30910K

R30610K

R3101.96K

Q305-g

C311-1

Q304MMBT3904L3

1

2

L30247uH

D301BAV99L

1

3

2

+ C314330uF

R31310

R30827.4K

Q30

3-b

+6V

R305100K

Component Selection:IC’sU301 Motorola UC3843A, common part available from multiple vendors.Transistors:Q305 Motorola MTP26P06V

Low impedance part not required, but part used elsewhere on board.Q303, 3043904, general purpose npn transistor.Diodes:D301 BAV99, general purpose diode.D303 Motorola MBRS340, 3Amp, 40V schottky, similar parts available.

Schottky not necessary but improves efficiency.Capacitors:C314 Aluminum, 330uF, general purpose.309,326,327X7R ceramic, 10%, general purpose.

Note: C326 and C327 location used to reduce EMI, take care with layout.C310, C311X7R ceramic, 5%, general purpose.Resistors:R304-3131%,1/8W, metal film, general purpose.

1.1.3 Linear Regulators – 5VDC and 3.3VDCThree terminal linear regulators, U302 and U303, are used to develop regulated 5V and 3V. Theregulators are powered by the output of the 6V PWM converter. These regulators do not include a powerdown mode, but the voltage will collapse as the input voltage shuts down.



+3.3V

U302LM2940CT-5.0

1 3

2

IN OUT

GN

D

+6V

+ C31610uF

D

C320.047uF

+5V

+ C319100uF

+ C3151uF

D

DDD

D

C317.047uF

D

U303LF33CV

1 3

2

IN OUT

GN

D

Component Selection:IC’s:U302 National LM2940CT-5.0; 5V-1Amp low dropout regulator.

Need low dropout as input is only 5.75V typical.U303 SGS LF33CV; 3.3V, 0.5V regulator

general purpose device, similar parts from alternate vendors.Capacitors:C315 1uF tantalum general purpose bypass.C316 10uF tantalum, general purpose bypass.C319 100uF tantalum, general purpose bypass.

Probably do not need this much capacitance on 3.3V supply, but wasn’t sure howmuch bulk capacitance would fit on CPU board.

C317, C320X7R ceramic, 10%, general purpose bypass.

1.2 Model 622 and Model 623

Atlas Model 622 and 623 can be powered either from AC or battery. A 50W, medical grade, offlineswitcher provides 12VDC from a universal AC input (85VAC to 264VAC – 50/60Hz). The battery is arechargeable 6-Volt, 6.5 Amp-Hour, Sealed Lead Acid Battery, and will provide about 1.5 hours on afully charged battery (Battery Life depends on usage, especially printer usage, NIBP cycles, and CO2operation).

The unit will operate from AC when the unit is plugged in, and switches to battery operation when ACis removed. The battery is automatically charged whenever AC is connected.

The following supplies are generated on the Atlas Main Board:+12V DC CRT, CO2, input to isolated power supply, misc. analog circuits.+5V DC Front panel LED’s, misc. logic.

+3.3V DC CPU board.3.3V Backup: Real time clock and On/Off circuits.

Battery Charger: Charges SLA battery.

Note: Additional electrically isolated supplies are generated for patient connected circuits.



+12V

AC Not Present

+5V

+3.3V

On/Off

AC Present

AC+12V

Battery

On/OffControlCircuits

+12VDCRegulator

BatteryCharger

+5VDCRegulator

+3.3VDCRegulator

AC/DCConverter

DC/DC CircuitsBlock Diagram

D310

Q311

Q303

BackupRegulator

1.2.1 On/Off Circuits

1.2.1.1 Backup Regulator and Micro-ControllerA 3.3V low current regulator, U307, provides power to the On/Off circuits and to the real time clock onthe CPU board. The On/Off circuitry is controlled by the mirocontroller U10. This controller performsthe following functions:

1. Monitors the status of the front panel ON-OFF key. If the unit is off and the ON-OFF key is pressed,the controller will drive U10-6 high, which will enable power to the remainder of the instrument.2. At power up, the microcontroller will drive the beeper for about 1 second.3. At power up, the microcontroller will reset Shift Register U2. This will cause the following:a. The front panel LED's are blanked.b. The NIBP pump drive is placed in the off state.4. When the unit is powered on the microcontroller will communicate with the system CPU. When thefront panel ON-OFF key is pressed, the CPU will store away present operating conditions, then issues acommand to the microcontroller to shut instrument power off. U10-6 is driven low which will removepower from the remainder of the instrument.

1.2.1.2 18V boost converter and FET ON/OFF switchThe PWM controller, U301, is configured as an 18V boost-converter. An N-Channel MOSFET transistor,Q303, is used to switch power to the 12V regulator. As Q303 is configured as a high side switch, it isnecessary to develop a gate voltage of proper magnitude to turn Q303 on. Then, to enable power to the12V regulator, the following takes place:1. The microcontroller drives U10-6 high, turning transistor Q302 on.2. Transistor Q301 is switched on, supplying power to the PWM controller, U301.3. The boost regulator develops 18VDC, which will switch transistor Q303 On.



D D

D

D

U301-comp

u307-6

Q301-b

U301-sw

Q302-c

Q302-B

U301-pwr

U301-7

U301-ct

VBackup

AC+12V

Battery

+Vfuse

V

U2-Reset

On/Off-Key

PIC-Data

On/Off

Vbackup

PIC-audio

PIC-Clk

+18V

+ C301330uF

+ C304100uF

HS301

6078

R3051

+C3021uF

Q303MTP30N06VL

2 3

1

4

D301MBR2535CTL

1

324

+ C3324.7uF

U307

LP2951CD-3.3

873

62

15

4

VINFDBKSHTDN

TAPSENS

VOUTERR

GND

Q301MPSW51A

3

2

1

C303470pf

D302BAV99L

1

3

2

R3021.96K

F303

4Amp

U301MC34063AD

53

78

1

26

4

COMPTCAP

IPKIDC

ISWC

ISWEVcc

GN

D

+ C3391uF

R30351.1K

R304100K

Q302MMBT3904L

31

2

+ C3314.7uF

R30110K

R3074.64K

L3011mH

R30661.9K

C42.047uF

U10

D620361-MX10000

2

5

7

4

3

6

1 14

8

9

10

11

12

13ClkIn/Osc1/RB5

TC5/TOCK1

RC3

Vpp/MCLR/RB3

Clkout/Osc2/RB4

RC4

Vdd

Vss

RC2

RC1

RC0

RB2

RB1

RB0

R2210K

On/Off Circuit18V Boost - Mosfet Gate Voltage

On/Off Switch

Heatsinkfor D301

(Front Panel Key)

(pg 1)

(pg 3)

(To U2)

Component Selection:IC’s:U301 Motorola MC34063 PWM Boost converter

Similar devices available from alternative vendors, but pinout will be different.Selected this device for lowest price for a complete switcher

U307 LP2951CD-3.3, 3.3V uPower regulatorAvailable from several vendors.Other, lower cost devices available, but may not operate with 12VDC input voltage.

U10 Microchip PIC16C505-04/SL, programmable microcontroller, low cost.Self contained controller, built in oscillator, power on reset, several I/O lines.May be difficult to find a replacement part, could design into a gate array.

Transistors:Q301 MPSW51A, pnp transistor, 1Watt TO92 package, Available from multiple vendors.

Could substitute with medium equivalent medium power pnp transistor.Q302 3904, general purpose npn transistor.Diodes:D301 Motorola MBR2535CTL, Dual Schottky diode, TO220 package – 35V, 25Amp diode.

25Amp rating excessive but gives low voltage drop (0.3V) at typical operating condition.Need low diode drop for battery operation, especially the ability to operate at low battery.

D302 BAV99, general purpose silicon diode.Fuses:



F303 4 Amp fast blow surface mount fuse, protect for shorts on +12V output.CapacitorsC302, C3391uF tantalum, general purpose.

C302 is a bypass.C339 used to filter On/Off signal to transistor Q302.Without low pass filter, Atlas occasionally powered off during ESD testing.

C331, C3324.7uF tantalum bypass caps, output cap required by LP2951 for stability.C301 330uF aluminum, general purposeC304 100uF aluminum, general purpose (aluminum chosen vs. tantalum for cost).C303 ceramic COG 5%, tolerance not critical.Resistors:R301-R304, R306-R307 general purpose 1/8watt, 1% metal filmR305 1 Ohm, 1/8watt, 5% metal filmInductor:L301 Coilcraft PCH-27-105, 1mH .385Amp inductor, no special requirements.

1.2.2 +12V Boost ConverterThe +12V boost circuit provides regulated 12VDC. The input to the 12V converter is either battery or12V from the AC/DC converter. The circuit is configured as a boost PWM using current mode feedback.The PWM controller is a UC3843A. The controller includes an internal 2.5V, 2% reference, and anexternal 5V, 2% reference. Nominal output voltage for the boost converter is Vout = [2.5V*(1 + 173.8K/4.64K)] = 12.1V.

The UC3843A requires 8.5V minimum to power on. The maximum voltage allowed on the switchingtransistor, Q305, is 15V. To meet both these requirements, the UC3843A is powered from 12.9V (+18V –5.1V zener diode D303)

When operating from battery, the converter will run at duty cycles over 50%, which requires slopecompensation for a current mode controller. Slope compensation is achieved by summing in part of theoscillator signal (pin 4) with the current sense line.

The PWM controller is current limited on a cycle to cycle basis by monitoring the voltage on the Isenseline, U302-5. Current limit is activated when the voltage at the sense line reaches 1V. The nominal DCvoltage at Isense is about 0.5V when operating from battery only, and 0.7V when operating from AC.Then, current limit is set to 5Amps when Atlas in operating on battery and 3Amps when operating onAC.



Q30

5-s

D304-C

Q30

5-gU302-comp

U302-pwr

U302-fb

U3

02

-ou

t

D312-c

C305-1

Q304-e

L302

-1

U302-sense

Q305-d

U302-ct

Q303-s

AC+12V-fuse

+12V

5VRef

+18V

+V

L305Bead

C307.047uF

R315196

D304MBRS340T3

L303Bead

+ C3061uF

D3035.1V

13

U302UC3843A

3

57

14

1

108

12

911

VFB

ISENSERT/CT

VREF

COMP

OUTP

WR

-GN

DV

cc

GN

DVc

R3123.83K

R30817.8K

+ C3111000uF

R31110K

C3095600pF

R31410

C3082200pF

+ C3121000uF

R3177.5K

R3131.96K

R31010K

C336.047uF

D312BAV99L

1

3

2

R3160.1

+ C313330uF

+ C3101000uF

R3094.64K

C3055600pF

C335.047uF

Q304MMBT3904L

3

1

2

L30222uH

Q305

MTP30N06VL

23

1

4

+12V Boost(12.1V nominal)

Component Selection:IC’s:U302 Motorola UC3843A, common part available from multiple vendors.Inductors:L302 Coilcraft, 22uH, 10Amp

Must choose part with over 5Amp saturation current rating.L303,L305Ferrite beads used to suppress EMI, especially radiated emissions near 100MHz.Transistors:Q305 Motorola MTP30N06VL, Low on resistance N-channel MOSFET

Equivalent parts available from alternate vendors.Could use part with higher on resistance, but efficiency not as good.

Q304 3904, general purpose npn transistor.Diodes:D303 5.1V zener, general purpose.

Any value between 3.3V and 7.5V should be OK.D312 silicon diode, general purpose.D304 Motorola MBRS340T3, Schottky diode 3Amp, 40V.

Devices of similar rating available from other vendors.Schottky not necessary, but does help efficiency.

Capacitors:C310 – C3121000uF Aluminum low ESR capacitors.

C311 and C312 should be low ESR due to high ripple current.C313 330uF, Aluminum, general purpose.C306 1uF tantalum, general purpose by passC335,305,307,309general purpose X7R ceramic, 10%C308 general purpose X7R ceramic, 5%Resistors:R308-315, R317general purpose, 1% metal filmR316 0.1Ohm, 2 watt – tolerance not important.

1.2.3 Battery Charger:The battery charger is a PWM buck converter. The input to the battery charger is 12VDC from the offlineswitcher. The UC3843A, normally a current mode controller, is configured for voltage mode feedback.



The UC3843A has an under-voltage lockout for Vcc<8.5V. The controller operates such that with Vccless than 8.5V, the reference out is 0V, and will be at 5V with Vcc>8.5V. Then, the reference out (pin 14)can be used as an AC-ON detect signal.

The switching transistor for the buck converter is a P-Channel MOSFET (Q308). The output drive of thecontroller is the wrong polarity for driving a P-Channel MOSFET in a step down mode. Therefore,transistor Q306 is added to invert the PWM out signal. Fast turn-on of Q308 is provided when Q306 islow, fast turn-off is though Q307 (configured as an emitter follower).

The battery charger is a current limited - temperature compensated charger. Current limit is set to1.5Amps. Current through the 0.1Ohm sense resistor R327 is measured with Diff-Amp U305B. When thecharger current is at 1.5Amps, feedback is controlled by Op-Amp U304A. When the current drops below1.5Amps, the output of U304A goes low, reverse biasing Diode D308, and feedback will be controlled byOp-amp U304B.

Battery charge voltage is temperature compensated using Thermistor RT301, a 10K negative temperaturecoefficient resistor. Voltage over temperature follows the following charge profile:

Temperature Voltage Thermistor0C 7.05V 26.9K10C 7.0V 20.7K25C 6.85V 10K40C 6.7V 5.17K50C 6.65V 3.45K

For optimum battery life, the float voltage (25C, full charge) should be set to 6.85V +/- 50mV (6.85V +/-0.7%). To accomplish this tight tolerance, charge voltage at room temperature will be adjusted withpotentiometer R328. Nominal charge voltage at room temperature is:Vcharge = 5V * (1 + RA/RB) where,5V is the reference in U303.RA is the series/parallel combination of R335, R336, and RT301 (nominal 3.465K @ 25C).RB is the series combination of R337and R338 (nominal 936 Ohms)

It is necessary to minimize current out of the battery when the unit is off. To reduce off current,transistor Q309 disconnects the battery from the battery sense resistors when AC in off. In addition,diode D307 is added to prevent current from flowing from the battery into the battery current sensecircuit, and to the output of the AC/DC converter.



+12V

Ref-Batcharge

ACON

ACON

Ref-Batcharge

Ref-Batcharge

AC+12V-fuse

AC+12V-fuse

U305-pwr

AC+12V

Battery

To Linear Regulators

U30

4-1

Q30

6-b

U305-6

Q307-e

Q308-d

U304-5

U304-3

Bat-Adj

U303-ct

RT

301-1U303-5

R339-2

U304-7

Q306-c

D307-A

Bat-fuse

Q308-g

Q309-3

U304-6

C319-1

Q309-b

U305-5

U30

3-ou

t

U304-2

Batt-fb

U303-cp

Q310-b

F302-2 AC+12V-fuse

R343-1

U303-fb

+

-

U304AMC34072

3

21

84

D305BAV99L

1

3

2

R34410K

Q308MTP23P06V

2

1

34

R33319.6K

R32610

R331

33.2K

R3207.5K

+ C318330uF

Q309MMBT3906L 3

12

R323 1.96K

R32410K

Q307MMBT3904L

3

1

2

C3162200pF

R3251.96K

Q310MMBT3904L

31

2

D307MBRS340T3

R34110K

C315.047uF

+

-

U304BMC34072

5

67

84

R3354.32K

R34010K

R33219.6K

Q306MMBT3904L

31

2

L30447uH

R34219.6K

C322.047uF

+

-

U305BMC34072

5

67

84

R3378.87K

R3291K

D308 BAV99L

1

3

2

C321.01uF

C314.047uF

R32210K

R33419.6K

D306MBRS340T3

R3281K

R33919.6K

R33033.2K

R34510K

t

RT30110K

R32127.4K

F3014Amp

F3024Amp

R3270.1

U303UC3843A

3

57

14

1

10

812

911

VFB

ISENSERT/CT

VREF

COMP

OUT

PW

R-G

ND

Vcc

GN

DV

c

R338

1K

13

2

R3367.5K

+C3191000uF

R34310K

R31810K

R31919.6K

C320.01uF

C337.047uF C338

.047uF

D309BAV70L

1

3

2

L306BeadC340

.047uF

Float Voltage

Current Limit(1.5 Amp)

BatteryCharger Input to 5V and

3.3V linearregulators.

Component Selection:IC’s:U303 UC3843A, available from multiple vendors

Selected this part for built in AC-On detect, tight reference voltage, low costU304, U305BMotorola MC34072, single supply op-amp.

Need good output voltage swing, otherwise no special requirements.Transistors:Q308 Motorola MTP23P06V power MOSFET, Low Rds on.

Similar devices available from alternate mfgs.Could use part with higher Rds at reduced efficiency.

Q306, 307, 310 3904, general purpose npn.Q309 3906, general purpose pnp.Diodes:D306, D307:Motorola MBRS340T3, Schottky diode 3Amp, 40V.

Devices of similar rating available from other vendors.D305, D308silicon diode, general purpose.D309 silicon diode, common cathode, general purpose.Fuses:F301, F3024Amp SMT fuse, used to protect against shorts on linear regulators.

Output of battery charger used as input to linear regulators.Do not get enough current flow with 5V short to open 10 Amp battery fuse.

Inductors:L304 Coilcraft PCV-1-473-03, 47uH, 3Amp. No special requirements.



L306 SMT Ferrite bead, used to reduce EMI in the 80MHz to 120MHz range.Capacitors:C319 1000uF, 25V, Aluminum, low ESR.

Could use more of a general purpose (lower cost) cap, but this part is used elsewhere.C318 330uF Aluminum, general purpose.C314, 315, 320-322, 337, 338, 340 X7R ceramic, 10%, general purposeC306 X7R ceramic, 5%, general purpose.Resistors:R327 2Watt, 1% resistor. Part available from other vendors.

Make sure to check package size if looking for alternate part.RT301NIC NTHC083HJ103KTR. 10K negative temperature coefficient.

10K NTC parts available from alternate vendors, but check temperature profile.If temp profile does not match, modify R335 and R336 to keep correct charge profile.

R338 1K, single turn, side adjust. Available from multiple vendors.R318-326, R328-337, R339-345 1%, 1/8W MF, general purpose.

1.2.4 Linear Regulators – 5VDC and 3.3VDCA series pass 5V regulator is built using transistor Q312 and op amp U305A. A 5V reference from U302PWM IC) is used as the control voltage for the regulator. The output of the 5V regulator is turned offwhen the unit is turned off. When the 18V-boost circuit is shut down, power is removed to U302, thenthe U302 reference is driven to 0V. Setting the reference to 0V will cause op amp U305 to turn the seriespass transistor Q312 off.

When operating from AC, transistor Q310 is turned on, which will turn transistor Q311 off. Power to the5V regulator is then provided through Diode D310 from the output of the battery charger circuit. Notethat this voltage tap is before the current sense resistor, then load current on +5V does not affect thebattery charger current limit circuit. When AC is removed, the AC-On signal goes low, and Q310 turnsoff. The gate of Q311 is then pulled up to 11.4V (12V – Vdiode). Transistor Q311 then turns on, and the5V regulator is powered from the battery.

3.3VDC is derived using a three terminal regulator. The output of the 5V regulator is used to power the3.3V regulator. The 3.3V regulator does not have an independent shutdown, but powers down as the 5Vregulator shuts down.

DDD

+12V

D

+12V

+Vpump

+3.3V

5VRef

AC+12V-fuse

+5V

ACON

Battery

Batt Charger input

To Q309

U305-3

C324-2

U3

05

-1

U3

05

-2

Q312-g

Q310-b

R343-1

U306LF33CV

1 3

2

IN OUT

GN

D

C326.01uF

D310MBRS340T3

C3241000pF

R34710K

R346100

+ C323100uF

HS302

6078

Q311MTP30N06VL

23

1

4

R350

10KD311BAV70L

1

3

2

+ C329100uF

C327.047uF

C330.047uF

+ C325100uF

R34910K

Q312

MTP30N06VL

2 3

1

4

C328.047uF

R34810K

+

-

U305AMC34072

3

21

84

R34310K

R34510K

Q310MMBT3904L

31

2

R34219.6K

D309BAV70L

1

3

2

R34410K

R34110K

+5V LinearLowDropout

HeatsinkforQ312

From BateryCharger Circuit.

Component Selection:IC’s:



U305AMotorola MC34072, single supply op-amp.Need good output voltage swing, otherwise no special requirements.

U306 SGS LF33CV, low dropout 3.3V regulatorSimilar parts available from alternate vendors, part chosen for low cost.5VDC input to device because part was to warm with battery charge voltage as input.

Transistors:Q311, Q312Motorola MTP30N06VL, 30Amp, low Rds ON MOSFET (.05 Ohm max).

Low Rds ON part used to insure low dropout voltage for battery operation.Q312 get warm when operating unit operating from AC, must use heat sink.

Diodes:D310: Motorola MBRS340T3, Schottky diode 3Amp, 40V.

Devices of similar rating available from other vendors.D311 BAV70L, common cathode, general purpose diode.

Note: U305B must be power when unit is off, then use output of AC/DCswitcher

U305A must be powered with AC off and Unit ON, then use +12V.Capacitors:C323, C325100uF Aluminum, general purpose by-passC329 100uF tantalum, 6.3VDC, general purpose by-passC324 ceramic, COG, 5% - general purpose.C326-C328cermaic, X7R, 10% - general purpose.Resistors:R346-R3501/8Watt, 1% MF – general purpose.

2 Non-Isolated circuits - A/D and Mux

2.1 A/D – grounded circuits

The A/D converter is designed by building a pulse width modulator (PWM) and a timer circuit. ThePWM runs at a 1.2KHz rate, synchronized by the A/D sync signal (NIBP-ADC-Clock). A/D sync is low for52.1uSec, high for 781.25uSec. Component values are selected such that the integrator will ramp down4.7V, and ramp up 7.83V. The voltage at the integrator output (U601-1) is limited to about 5V [5V*(73.2/83.2) + Vdiode)]. Then, the integrator starts at 5V and ramps linearly down to 0.3V.

The analog input voltage to be digitized and the integrator output are the inputs to comparator U210.The output of the comparator is low at the start of an A/D cycle, and switches high as the integratorramp drops below the input voltage being digitized (see the timing diagram below). A/D conversion isaccomplished by measuring the width of the PWM output signal. The A/D timer runs at 25.175MHz,then the A/D resolution is about 21000 counts (over 14 bits). Note that since the output of thecomparator is low at the start of the A/D cycle, a resistor divider is formed at the comparator input. Thisdivider reduces the Analog-In signal by 0.75% [464K/(464K+3.48K)].



NIBP-PWM-ADC

P+5V

P+5V

NIBP-ADC-Clock

P+5V

Analog-Input

U207-3

U210-3

U210-7

U208-3

U208-2

U208-1

D201-C

U209-Out U210-2

A

AA

A

P+12V

A

A

A

A

A

R237464K

C221.047uF

C220

.01uF

+C2184.7uF

C2241000pF

R23173.2K

R23210K

R2353.48K

C225.047uF

U207B74HCT00

4

56

14

7

R2333.48K

+

- U210MAX941

2

36

1 4

7

5

R2343.48K

C219.047uF

+

-U208AMC34072

3

21

84

R23010K

U207A74HCT00

1

23

14

7

D201MMBD1503A

1

3

2

NIBPPWM A/DConverter

PWM A/DConverter

Analog In

(U207-3) 781uSec

52uSec

0.31V

PWM-timer

ComparatorInputs

PWM-Out(U207-6)

+5V

IntegratorInput -f=1.2KHz

Component Selection:IC’s:U206 – MC34072Single supply bipolar op-amp

Need an op-amp with a large output swing, otherwise general purposeOK.

U210 – MAX941Maxim Max941. High Speed 5V comparator.High speed comparitor reduces time jitter seen at digitized output.

U207A/B – 74HCT00CMOS nand gate used to guarantee rail-rail drive signal to integrator.HCT logic used to interface with 3.3V logic on CPU board.

Diodes:D201 mmbd15003Low leakage diode, available from multiple vendors.Resistors:R230-235,R237general purpose, 1% MF, 1/8watt.Capacitors:C224 5% COG ceramic.

Part chosen to reduce noise (time jitter) at A/D output.Value not critical, but layout (tight spacing) is.

C220 Polypropylene, 100V, 2.5%Low Temperature Coefficient capacitor used.Tolerance not important for gain (A/D calibrated by measuring reference voltages)Tolerance is important to ensure adequate A/D range, lower threshold limit set byintegrator output voltage swing.

2.2 A/D Mux – grounded circuitsAnalog signals are switched to the A/D converter through MUX U209. Control of the multiplexer is



through a serial communication channel from the main CPU. The following signals are digitized:

1. +5V/2 Sampled version of the 5V supply. Used to verify A/D operation.2. SafetyPres Safety Pressure Transducer3. PrimaryPres Primary Pressure Transducer4. P.75V Reference voltage for A/D calibration.

0mmHg pressure for Primary Transducer.5. P4.25V Reference voltage for A/D calibration.

300mmHg pressure for Primary Transducer.6. Print-Temp Printhead Temperature, used to compensate printer strobe width.7. Model 622/623: Vbatt Battery Voltage, used to warn of low battery conditionModel 621: Not Used.8. Model 622/623 BattCurrent: Battery charger current, used in service mode verification.Model 621 LithMeas Backup Battery voltage (Lithium Battery)

Used to warn user of low backup battery condition.

3 NIBP Circuits

3.1 Overview - Safety:

Two pressure transducers are used, a primary and safety transducer. The primary is used to make all BPmeasurements. Hardware circuits monitor the output of the primary transducer, looking for overpressurefaults. In addition, Software monitors the digitized outputs of the primary transducer, and detectsoverpressure faults. The following overpressure faults are detected in software (monitored once persecond):

1. >=10mmHg pressure for 295 seconds2. >=15mmHg pressure for 175 seconds3. >295mmHg pressure for 0.5 seconds.

Software detected overpressure faults are considered application faults. The user is warned of a faultwith an audible alarm and a ‘Check blood pressure cuff’ message on the CRT display. NIBP is notdisabled for this type of fault. In the event of a fault, the drive signals to the NIBP pump and valve areopened.

Two hardware faults are detected, pressure over 330mmHg (nominal trip point 314mmHg, and pressureover 15mmHg for three minutes (13.3mmHg nominal trip point). These faults are considered moreserious (since software should have detected and corrected this condition). The user is notified with a‘BP SYSTEM FAULT’ message, and NIBP is disabled. A redundant safety transistor is opened to ensurethe NIBP pump is off and the valve is open.

The primary and safety transducer outputs are continuously digitized. The outputs of the transducersare checked vs. each other, and if they disagree, an ‘NIBP Fault Message’ is declared and the NIBPsystem is disabled. The outputs of the transducers are linearly proportional to the supply voltage(supply current for the safety transducer). The transducers use unique reference voltages to ensure that afault in one reference will not cause an equivalent gain error in both transducers.

The A/D also has redundant checks. Two reference voltages (derived from the primary transducerreference supply) are measured, and the A/D gain and zero is checked. In addition, a unique reference isdigitized, and compared vs. expected results. An error in any of these A/D measurements will againcause an ‘NIBP Fault Message’, and the NIBP system will be disabled.

3.1 Primary Transducer - Amplifier:The primary pressure transducer is a fully calibrated and compensated transducer with built in voltage



amplification. The output of the transducer is proportional to the supply voltage. With a 5V supply, theoutput of the transducer is:0mmHg = 0.5V.300mmHg = 4V.Op amp U204A is used to level shift the output of the transducer such that the nominal voltage for0mmHg is set to 0.75V. The CPU monitors the digitized zero pressure voltage, and any offset iscorrected. This correction comes from the summation of an error correction signal through op ampU204B. The CPU will output a pulse width modulated signal at 76.8KHz. This signal is RC filtered toprovide ad DC voltage at U204-5. This signal can adjust the offset seen at the A/D converter by +/-20mmHg.

Component Selection:Pressure Transducer:P201: Fujikura XFPM-050KPGR-P1

Transducer is amplified and compensated for gain and zero drift.Shown to be low noise good tolerance to AM modulated RF fields.No second source available.

Op Amp:U204 Motorola MC34072, Single Supply Op Amp.

Requires op amp able to swing near ground, no other special requirements.Inductor:L202: Fair-Rite 25080560170Y0

Used to improve noise susceptibility to AM modulated RF fieldsResistors:R212-219,236,244general purpose, 1% MF, 1/8wattCapacitors:C207, C20825V tantalum, 1uF, general purpose.C206,209,C226,228,231,232 general Purpose, 10% X7R ceramic.

P+5V

P+.75V

+3.3V

NIBP-Offset-DAC

PrimaryPres

P201-Out

U204-5

U204-2

U204-7

U204-3

P201-pwr

P201-6

U204-1

C207-1

A

P+12V

A

A

A

A

A

A

A A

A

P+12V

A

A

C232.047uF

C227680pF

C209.047uF

C228.047uF

R2175.62K

R213237K

L202

Bead

C226.047uF

R2363.83K

R21823.7K

+

-U204BMC34072

5

67

84

C231.01uF

R24421.5K

C206.047uF

R215100K

R21256.2K

+

-U204AMC34072

3

21

84

+C2081uF

R2191.96K

GainandComp

XFPM-050KPGR-P1P201

1

2

3

6

R21619.6K

R21410K

+ C2071uF

PWM D/A76.8KHz

0mmHG = 0.5V 300mmHG = 4.0V

PrimaryTransducer

Zero Adjust+/-20mmHg range



3.2 Safety Transducer - AmplifierThe safety transducer is compensated for temperature drift, but gain and zero are not calibrated. Thesafety transducer does not include built in voltage amplification. The safety transducer output is adifferential voltage, proportional to the supply current through the device.

The initial accuracy of the safety transducer is very loose, in the order of +/-50%. However, the driftover time and temperature is very good. Then, it is necessary to calibrate the output of the safetytransducer. This is done my measuring a know pressure, measuring the output of the safety transducer,and storing calibration constants in NVRAM. A two-point calibration procedure is used. Calibration isdone at the factory, and can be recalibrated in the field if necessary.

3.2.1 Current Source:Op amp U205A is configured as a current source for the Pressure Transducer, with the current throughthe transducer set to 1.5mA. Nominal gain for the transducer is 300mmHg = 75mV.

3.2.2 Differential Amplifier and Offset Centering:The output of the safety transducer is a differential voltage, with a nominal gain of 0.25mV/mmHg, anda zero pressure offset voltage of +/-25mV. The A/D converter has an input voltage range of 0.5V to 5V. Itis necessary to both add both signal gain and offset centering to the transducer output beforedigitization.

Op amp U206A/B is configured as a differential amplifier, with a voltage gain of 22.5. The output of thedifferential amplifier is offset by 1.2V (U205B).

5VRef

SafetyPres

P202-5

P202-Out+U206-1

U206-2

U206-7

U205-7

P202-Out-

P202-2U205-3

A

A

P+12V

P+12V

P+12V

A

A

A

A

A

A

A

P+12V

A

C212680pF

+

-

U205AMC34072

3

21

84

R22621.5K

R2251K

-+

FPNS-07PGRP2022

13

5

6

C216.047uF

+

-

U206BMC34072

5

67

84

+

-

U206AMC34072

3

21

84

+

-

U205BMC34072

5

67

84

C215.047uF

R2213.16K

R2221K

C211

.047uF

C213.01uF

TP226

R22321.5K

C214.047uF

R220806

C217

.047uF

R2275.11K

R2241K

ZeroOffset

SafetyTransducer

Component Selection:Pressure Transducer:



P202 Fujikura FPNS-07PGRTemperature compensated transducer, initial accuracy (gain and zero) not important.

IC’s:U205, U206Motorola MC34072, Single Supply Op Amp.

Requires op amp able to swing near ground, no other special requirements.Resistors:R220-R227general purpose, 1% MF, 1/8wattCapacitors:C212 general Purpose, 5% COG ceramic.C213-C217general Purpose, 10% X7R ceramic.

3.3 Hardware Overpressure:The output of the primary transducer is monitored for two overpressure conditions; pressures in excessof 13.3mmHg (nominal) and 314mmHg (nominal) are detected. These error conditions are transmitted tothe gate array on the CPU board, and if the error conditions are present for a long enough time period, afault message is displayed, and NIBP is disabled (see above for safety performance operation).

The output of the Primary Transducer drives the two comparators U203A/B. The comparison voltage isderived through a resistor divider chain from a 5V regulator (U201). This regulator is the supply voltagefor the primary transducer, and sense the primary output is proportional to the supply voltage, toleranceerrors in the regulator are not critical.

P+12V+12V P+5V

P+.75V

NIBP-Overpressure

NIBP-15mmHg

P+4.25V

PrimaryPres

U203-5

U202-3

U202-5

U203-6

U203-3

U203-2

A

A

P+12V

A

A

+3.3V

A

A

A

P+12V

A

A

P+12V

A

AA

A

+3.3V

A

P+12V

+

- U203BLM393

5

67

84

R2111.96K

C203

.047uF

L201220uH

+C22910uF

R2081.96K

R207464K

R202174

+

-U202AMC34072

3

21

84

C223.01uF

R2061 K

+ C2024.7uF

C205

.047uF

+

-U202BMC34072

5

67

84

C222.01uF

U20178L05

8 1

2 3 6 7

IN OUT

GN

D

GN

D

GN

D

GN

D

C201.047uF

R204150

C204.047uF

R201576

R2091 K

+

- U203ALM393

3

21

84

R210464K

R205750

R2033.32K

Over PressureFault Circuit

Component Selection:IC’s:U201: 78L05 (Motorola MC7805ACD), general purpose 5V regulator

Available from multiple vendorsOutput Tolerance not important.

U202A/BMotorola MC34072, Single Supply Op Amp.Requires op amp able to swing near ground, no other special requirements.

U203A/BLM393 comparator, general purpose comparator.Available from multiple vendors, no special requirements.

Resistors:R201-R205, R206-R211 general purpose, 1% MF, 1/8wattCapacitors:C202 16V tantalum, 4.7uF, general purpose.C229 16V tantalum, 10uF, general purpose.



C201, C202-C205general Purpose, 10% X7R ceramic.Inductors:L201 220uH (Delevan 1812-224KTR), surface mount inductor, general purpose.

Similar part available from Dale.LC filter to reduce noise for P+5V supply.Need supply to primary transducer to be as low noise as possible.

3.4 Pump and Relay Drive:Two independent dual transistor switches, Q202 and Q203 control the pump and valve. Q202 iscontrolled by logic circuits on the CPU board, and is normally in the on state. Q202 is only opened in afault condition (over pressure, A/D calibration error, or transducer mismatch). Once a fault is detected,Q202 will remain open until power is cycled. Under normal operation, dual transistor Q203 is used toswitch the pump on and close the valve. The pump-on and valve-close commands are controlled bysoftware. Note that the valve is normally open. Then, in the case of no power, the valve will be in theopen state.

Component Selection:Transistors:Q201:npn 3904, general purpose npn transistor.Q202,Q203:Motorola MMDF2N02ER2, dual N-channel Mosfet (model 622/623)

medium power, similar parts available from multiple vendors.Motorola MMFT2N02ELT1, N-channel Mosfet (model 621)Could have used the dual diode in model 621, chose this part for a slight cost advantage.Didn’t want to use single MOSFET in model 622/623, +Vpump ranges from 5.5V (lowbattery) to 7V (AC and fully charged battery), wanted to drive valve off a more constantsupply voltage. Did not want to run pump at 5V, pump time increase too much.

Diodes:D202BAV99L, general purpose silicon diode.Resistors:R240-243, R246-248 general purpose, 1% MF, 1/8watt

NIBP-Pump-OnNIBP-Valve-Close

NIBP-Safety

+5V +Vpump

Pump-

Valve-

Pump+

Valve+

Q201-B

Q202-G

D20

1-A

+12V

Q203MMDF2N02E

81

2

5 67

3

4

R246

31.6

Q201MMBT3904L

31

2R243100K

R24110K

R24210K

D202BAV99L

1

3

2

R2481K

J201

CON5

12345

R2471K

R24010K

Q202MMDF2N02E

81

2

5 67

3

4

Note: Model 621 uses a single Mosfet for transistor Q202, with the drain connected to +6V, and the



source connected to nets ‘Pump+’ and ‘Valve+’ through a series diode.

4 CRT Deflection Board

4.1 Overview:

Atlas uses a 5-inch monochrome CRT display. This CRT will display Waveform Data (ECG andRespiration or SpO2 orETCO2), plus Text Data (Heart Rate, Alarm Values, Trend Data, setup, and servicemenus). The CRT Deflection board performs the following functions:1. Vertical Deflection.2. Horizontal Deflection.3. CRT Grid Voltages.4. Video Amplifier.CRT Deflection is magnetic, vertical and horizontal deflection is controlled by regulating currentthrough the vertical and horizontal coils of the CRT Yoke. The Deflection board is designed to thefollowing specifications:

Resolution:VGA (640X480)Dot Clock: 39.7nSec (1/25.175Mhz)Display Size: 100mm (Horizontal) X 68mm (Vertical)

Vertical: Scan Rate: 60HzReset Time: 750uSecBlanking Time: 1.2mSec

Horizontal:Scan Rate:31.5KhzReset Time: 5uSecBlanking Time: 5.7uSec

Component Selection:Tube:monochrome 5 inch tube, P43 Phosphor (yellow green)

P43 Phosphor chosen for long life (solid image tends not to burn phosphor)P31 Phosphor also acceptable (standard yellow-green phosphor)Adequate adjustment range to use tubes from other mfgs.

Yoke:Custom designed by Toptronics.

4.2 Vertical Amplifier:

4.2.1 Ramp Generator:



+12V+5V

VsyncRampU4.2

U1.2

d6.c

U1.3

C3.047uF

U4A

74HCT04

1 2

R43

5.11K

R521.96K

R27.50K

R11K

R323.7K

C1.1uF

D11N4148

12

D61N4148

12

+

-U1A

TLC272

3

21

84

Ramp Generator

750uSec

16.7mSec

Vertical Sync

VerticalSync

16.7mSec

750uSec

3.95Vpp

5.0V

A ramp generator is built from the integrator (U1A, C1, and R3). The slope of the integrator is: V = (I*T)/C. The integrator is designed so that it ramps up 6.97V in 750uS and ramps down 3.95V in 15.9mS.Diode D1 clips the output voltage at about 5.0V (U1-pin3 + Vdiode). Then the ramp resets at 5.0V eachcycle, and integrates down 3.95V.

Component Selection:U1A (TLC272): Must be low bias current, able to swing near negative rail.Diodes D1 and D3: General Purpose Diode (Do not use schottky for excessive reverse leakage).Resistors: 1% Metal Film - Tolerance not critical, need low temperature coefficient.C1: Must be low dielectric absorption, low temperature coefficient.

+5V

+5V

Ramp

q4.b

q3.b

u2.6

u1.5

u2.7

q1.b

vadj

q1.e

u1.6

u1.7

vcadj

vcadj-vcadj+

q2.b

u2.2

+12V+12V

+12V

+12V

Q 1MPSW01A

32

1

R17 10

R15 38.3R20169+

-U2A

MC34072

3

21

8

4

R641.2K

R9

1.47K

+ C522uF

R410K

+

-U2BMC34072

5

67

8

4

Q 4MPSW51A

32

1

R11

1.96K

C4.047uF R19

562

R18562

R741.2K

R2310K

R13169

+

-

U1BTLC272

5

67

8

4

R841.2K

C2100pf

R2210K

R10 1K

R542.2K

R21562

Q2MPSW51A

32

1

R16 10

Q3MPSW01A

32

1

R12562

R14562

L

Vertical Yoke

Vertical Amplifier

Size Adjust

Zero Adjust

4.2.2 Vertical Amplifier:



The Vertical amplifier will generate a linear current ramp of +/-200mA. The vertical amplifier is an H-Bridge type driver. Positive current flow (deflecting the beam above the centerline) is defined as currentfrom +12V to Q1 to Rsense through the coil to Q4 to Ground. The negative current path is from +12V toQ3 through the Coil to Rsense to Q2 to Ground.

The input to the vertical amplifier is the ramp voltage generated above. The objective of the vertical ampis to match the current through the vertical coil with the input ramp control voltage. Current through thevertical coil is monitored through the sense resistor, formed from R15, R16, and R17. Voltage across thesense resistor is measured with the differential amplifier U1B. This voltage is then used as the feedbackvoltage to the control opamp, U2A.

Component Selection:U2A/B (MC34072):High Bandwidth (to minimize crossover distortion); large output swing.

Input includes negative rail.U1B (TLC272): Medium bandwidth, single supply (output swings near ground).Q1, Q3 (MPSW01A): npn medium power, general purpose, B>50.Q2, Q4 (MPSW51A): pnp medium power, general purpose, B>50.Resistors:current sense (R15, R17) should be 1% metal film, low drift.

Used 1% MF for other resistors, but could use lower grade.

4.2.3 Zero Adjust:

The output voltage from the ramp generator is a ramp from 5.0V to 1.05V (nominal). The center of thisramp is 3.0V. Then, the output of the current sense diff amp must be offset by 3.0V. This is accomplishedwith the Zero Adjust Network, Resistors R9, R10, and R11. Vertical centering is then accomplished bywriting a pattern to the CRT, and adjusting R10 to center the display.

Component Selection:R10: 1K single turn, general purpose

Size Adjust:

Adjusting the current through the Vertical Coil changes vertical deflection. The voltage across the senseresistor is:Vsense = (Vramp-Voffset) / 1.02 (1.02 is the gain of the current sense diff amp)Current through the coil is equal to current through the sense resistor network.Icoil = Isense = Vsense / RsenseThen, adjusting the value of the sense resistor will change the current through the vertical coil. Verticalgain is then accomplished by writing a pattern to the CRT, and adjusting R16 to set vertical deflection.

Component Selection:R16: 10 Ohm single turn, general purpose (note: 10 Ohm not available from all vendors)

4.3 Horizontal Amplifier:

Current through the transformer increases linearly as Transistor Q6 is On (I = VdT/L). When thetransistor opens, the drain voltage kicks up, and the current through the Transformer coil flows throughC9, L2, L3, and the Horizontal Coil to Ground The transformer quickly loses flux (reset time < 5uSec).Current continues to flow in load inductance, from Ground through Q6-diode, C9, L2, L3, and theHorizontal Coil to Ground. This current flow charges capacitor C9. The current decreases linearly to 0,then changes directions. This is due to the AC coupling capacitor C9 being charged to a negative voltage.Current flow is then from Ground through the Horizontal Coil, L2, L3, C9, and Q6 to Ground.

The drive to MOSFET Q6 is AC coupled. This will prevent Q6 to be driven high in the event of a faultydriver on the CPU board.



In order to get adequate deflection current (about +/-2.3Amps), 18.5V across the transformer coil isnecessary. A “boost” winding is added to the transformer, then when the voltage on the transistor drainflys up, current flows into capacitor C11. C11 charges to a voltage determined by the turns ratio in thetransformer.

4.3.1 Horizontal Gain:

Horizontal deflection is adjusted by changing the current through the Horizontal coil. Changing theseries inductance in the Horizontal Deflection Path modifies the current. Increasing Horizontal gain isthen accomplished by writing a pattern to the CRT, and adjusting the “width coil”, L3.

Horizontal Centering:

Horizontal centering is accomplished by rotating magnets mounted on the CRT Yoke assembly.

4.3.2 Grid Voltages:

The following voltages are developed to bias the grids on the CRT:Grid 1: -10V to -50V DC (Brightness Adjust)Grid 2: 350VDCGrid 4:0V to 350VDC (Focus Adjust)Anode: 7.5KV

These voltages are derived from additional windings on the FBT. In addition, the supply voltage for thevideo amplifier (+36VDC) is generated from a tap on the FBT.

+12V

+12V

+12V

+Vvid

Grid 2

Intensity

Hsync

Focus

+B

hwide

Vg2

d5.c

q5.c

C22-2

Vd

q6.d

Vg1

+12filt

Hor

Grid1

hlin

q5.b

d4.a

Boost

Q6IRF640

2

1

34

C15.01uF

R2710

L215uH

LHorizontal Yoke

D51N4937

1 2

U 4 B

74HCT04

3 4

C22.022uF

D31N4935

1 2

+ C1222uF

L1

47uH

Q52N3904

32

1

R2410K

C8.022uF

D2

MUR120

1 2

R30100K

C14.01uF

+C101000uF

C16.01uF

R29 100K

R25215

+

C13

22uF

To CRTAnodeT1

CRT-FBT

10

9

7

1

3

5

2

8

R261 K

+C111000uF

R2819.6K

R501.96K

R322.5Meg

C96.8uF

D41N4935

12

C17.01uF

L315- 35uH

31.7uSec

Horizontal AmplifierGrid Voltages

5.5uSec

FocusAdjust

Horizontal Sync

BrightnessAdjust



Component Selection:Transistors:Q6 (IRF640):200V, Rds on = ???

Rds on critical, may need to add heat sink to Q6 if Rds increasedQ5 (2N3904): npn, general purpose

Diodes:D2 (MUR120):1Amp, 200Volt, medium powerD3,D4(1N4935): general purpose, 100VD5 (1N4937): general purpose, 400V

Resistors:R24 - R27, R28, R30: General Purpose, used 1% MFAdj Resistors:R29: Single Turn, 100K, 100V (Brightness Adjust)

Value not critical, must give adequate adjustment range.R32: Single Turn, 2.5Meg 600V

Value not critical, large value chosen to minimize current drain.Inductors: L1:47uH, 3Amp: Filter CRT from +12V supply, value not critical.

L2: Linearity Inductor, this coil changes inductance with current. (custom)L3: Width Coil, used to adjust Horizontal Deflection (width) (custom)

Capacitors:C22X7R ceramicC8 ..022uF Polypropylene, 200V, need low ESR, low temperature coefficient

Value affects flyback voltages (and grid voltages), deflection current.If C8 changes, may need to change voltage rating on other components.

C9 6.8uF Aluminum - Non polarized, value not criticalSpecial ‘Horizontal Deflection’ capacitor, requires high ESRCould use Polypropylene, but costly.

C10, C11 1000uF Aluminum, 25VValue not critical, must handle ripple current

C12, C13: 22uF Aluminum, 100V - value not criticalC15 - C17 .01uF ceramic, 500VDC - value, dielectric not critical.

Flyback:Transformer T1:Custom Designed to my Specifications by Toptronics

4.4 Video Amplifier:

The CRT tube turns a dot on when video out is low (near 0V), and off when video out is high (+Vvid =28V). The input to the video amplifier is a digital signal (3.3V logic level) from the uProcessor. An inputof 0V turns the dot off, an input of 3.3V turns the dot on. Transistor Q7 amplifies and inverts this signal.Video out is driven low through D7, and driven high through emitter follower Q8. .

+Vvid

+5V

VideoIn

VideoOut

q8-b

q7-g

q8-e

u4-6

C19.01uFR37

1.96K

Q82N3904

32

1

R361.96K

R5119.6K

U4E

74HCT04

11 10

R48100

D71N4148

12

Q7BS170

1

2

3

R41681

Video Amplifier

Component Selection:



Transistors:Q7 (BS170):Logic Level input, 40VDC breakdownPart (and topology) chosen to minimize EMIRise and fall times were optimized to reduce EMI, maintain

image.Q5 (2N3904): npn, general purpose

Diode:D7 (1N4148):general purpose, switching diode.

5 Recorder Electronics

5.1 Overview:

Atlas includes a thermal strip chart printer (optional on Model 200 and 210, standard on model 220).The user can print either annotated waveform data or Patient trend information.

The printer specifications are:

Paper Size: 56 or 58mm(2 1/4 inches)

Printhead Width: 54mm (2 1/8 inches)

Resolution: Vertical: 8 dots/mm, (200 dots/inch) Horizontal: 12 dots/mm(300 dots/inch)

Chart Speed: 25mm/sec(1 inch/second)

The main CPU controls the printer. Data timing, clock signals, and strobe widths are all generated by theFPGA on the CPU board. These signals are buffered on the recorder board (inverter U5), beforetransmission to the printhead.

Component Selection:Printhead:A 24V print head was chosen for cost reasons (much lower cost than the 12V version).

Alternate suppliers available, but with a different printhead connector.Motor:12V motor used, operated at a low duty cycle.

12V motor chosen for higher torque availability, later testing shows 24V motor is OK.PIC software would need to change to drive 24V motor, 12V motor is pulsed,24V motor should be driven at full power.

IC’s: U374HCT04, an HCT device must be used to translate the CMOS 3.3V levels on the CPU board tothe 5V CMOS levels needed by the printhead.

5.2 Power Supply – 24 Switcher

It is necessary to generate 24VDC for the print head and motor. The input to the 24V switcher is either12V from the AC/DC converter, or Battery voltage on the model 210/220 when AC is not present. Thecircuit is configured as a boost PWM using current mode feedback. The PWM controller is a UC3843A.The controller includes an internal 2.5V, 1% reference, and an external 5V, 1% reference. Nominaloutput voltage for the boost converter is Vout = [2.5V*(1 + 84.5K/10K)] = 23.6V.

The converter will run at duty cycles over 50%, which requires slope compensation for a current modecontroller. Slope compensation is added by summing in part of the oscillator signal with the currentsense line.

The PWM current limits on a cycle to cycle basis. The supply will be in current limit when the Isense



line reaches 1V. Current limit is set to about 3.5 Amps from 12VDC or 5Amps from battery.

Two control signals exist for the 24V switcher, n24Von and Rec-Supply-On. The 24V switcher isdisabled when n24Von is high. This signal is controlled by the on board PIC processor. The switcher isheld off at power up, and allowed to start after 50mSec. This is done to reduce inrush current at powerup. The signal Rec-Supply-On enables power to the print head, and is controlled by the main CPU.Power is only applied to the print head when the recorder is running.

RecVdc

RecVdc

+24V

n24VOn

+24V-switch

U2-

Isen

se

U2-Ref

U2-RT

Q6-e

U2-

out

Q4-

G

U2-comp

Rec-Supply-On Q2-b

Q4-D

U2-fb

Q4-s

A+5V

A

A

A

A

A

A

A

A

A

+12V

A

A

A A

R193.16K

+ C41000uF

TP8

C11.047uF

TP14

L122uH

TP17

R1619.6K

C7.01uF

R224.22K

R1310

C135600pF

Q4MTP30N06VL

23

1

4

R1410K

R170.1

R610K

TP10

Q32N7002

3

1

2

R1210K

TP19

+ C61uF

TP21

C142200pF

R115.11K

R18no-load

Q6MMBT3904L

3

1

2

R15147

TP23

Q2MMBT3904L

31

2

R910K

R1010K

TP9

D2MBRS340T3

U2UC3843A

3

57

14

1

10

812

911

VFB

ISENSERT/CT

VREF

COMP

OUT

PW

R-G

ND

Vcc

GN

DV

c

R784.5K

+ C81800uF

Q1MTP30P06V

2

1

34

R310K

PrintheadPowerSwitch

SwitcherDisable

ToPrinthead

ToMotorRecorder

PowerSupply


U2 - UC3843A PWM current mode controller, available from multiple vendors.Transistors:

Q3 – 2N7002 Logic level MOSFET, general purpose.Check pin-out if substitute part is needed.

Q2, Q6 – mmbt3904npn transistor, general purpose.Q4 – MTP30N06VN-channel MOSFET, 60V, 30Amp, Rds = ??? (must use low Rds on Part)Q1 – MTP30P06VP-channel MOSFET, 60V, 30Amp, Rds = ??? (must use low Rds on Part)

Resistors: general purpose, 1% MF, 1/8watt.R17 0.1Ohm, 3Watt power resistor – tolerance not critical.

Capacitors:C4 25V, 1000uF Aluminum electrolytic, low ESR.C8 35V, 1800uF Aluminum electrolytic, low ESR.

Part selected for low height, difficult to find in this package style.C7, C11, C13, C14X7R ceramic, 10%, general purpose.C6 25V tantalum, 1uF, general purpose.

5.3 Motor Driver:

Atlas uses a stepper motor to drive the paper. The microcontroller (U3) is programmed to apply theappropriate phased signal to the motor. A quad darlington switch (U6) amplifies the signal from thecontroller to signal levels needed to drive the motor. Motor speed timing is derived from the main CPU,and transmitted to U3 on signal line U3-clk (U2-pin2).



U3-clkJ3-1

u6-11

u6-clmp

J3-3

d6-c

U3-8

U3-10

n24Von u6-14 J3-4

J3-6

U3-9u6-3u6-6

U3-7

A

A

+24V+24V

+5V

DA

D627V

13

R331.47K

U6ULN2065

36

1114

27916

18

1 B2 B3 B4 B

1C2C3C4C

CLMP1CLMP2

C19.047uF

TP26

R351.47K

TP29

C18.047uF

TP1

J3

CON6

123456

R361.47K

TP67

+C2047uF

R341.47K

D127V

13

TP28

TP27

U3

PIC16C505

2

5

7

4

3

6

1 14

8

9

10

11

12

13ClkIn/Osc1/RB5

RC5/TOCK1

RC3

Vpp/MCLR/RB3

Clkout/Osc2/RB4

RC4

Vd

d

Vss

RC2

RC1

RC0

RB2

RB1

RB0

+

4

Connector Pin #

+

43

+

1

+1phase +23

+

6

++


U3 – PIC16C505Microchip 8-bit microcontroller – programmed to control stepper motor.U6 – ULN2065Allegro Microsystems quad darlington switch.

This part includes internal diodes from ground to collector.Not all parts include this diode, or have a diode of adequate current

rating.Do not use SGS ULN2065. Test other equivalent parts before substituting.If required to change part, add diode from collector to ground on each

output.Diodes: D1, D6 27V zener, 1/8watt, general purpose.Resistors: general purpose, 1% MF, 1/8watt.Capacitors:

C20: Aluminum Electrolytic, axial, general purpose, 35VC18, C19 General purpose, ceramic, X7R, 10%, C19 must be 50VDC minimum.

5.4 Temperature Amplifier:The printer will print darker as temperature is increased. Print darkness can adjusted by controlling thetime a dot is turned on. A thermistor is included on the printhead. This thermistor is nominally 30K,and decreases as temperature increases. The output of the temperature amplifier is a function of thethermistor voltage, Temp = .755*(1+R8/Rtherm). This voltage is digitized (on the main board), and theCPU can compensate dot width in order to maintain consistent printing over temperature.



Thermistor1

Thermistor2

Temp

U1-1

U1-2

U1-3

A A

+5V

+5V

+5V

A

A

A

R151.1K

TP6

D3

BAV99L

1

3

2

C1.047uF

R21K

TP3

C5 .01uF

TP54

C3.01uF

R8 23.7K

R49.09K

C2.01uF

R51K

+

-U1A

MC34072

3

21

84

ThermistorInput

PrintheadTemperatureAmplifier


U1 – MC34072Single supply op-amp, needs good output voltage swing.Diodes:

D3 – BAV99L general purpose, used for ESD protection.Resistors: general purpose, 1% MF, 1/8watt.Capacitors: general purpose, X7R ceramic, 10% (tolerance not critical).

6 Patient Isolated Circuits

6.1 Isolated PowerIsolated power is provided to the ECG, SpO2, Temperature, and Impedance Respiration circuits using anIsolation Transformer T401 (temperature and respiration on models 622 and 623 only). The powersupply is a PWM controlled flyback converter. The PWM controller is an LM3524. Output voltage f+V issampled and compared with a 5V reference voltage. An error voltage is generated, and this voltagereturned via opto U410. Voltage f+V is regulated to 7.4V. A second tap on transformer T401 provides f-V(-7.4V). The switcher operates at 76.8KHz, controlled by a sync signal from the CPU board. The powersupply is synchronized with the A/D converter used to digitize ECG, Temperature and Respirationsignals.



S

S

S

S

S

SS

ED SE

S

FE-Pwr-Sync

+5V

+12V

+12V

f+V

s+5V

f-V

f+V

U402-1

C409-1

T401-4

Q40

1-g

U402-sen

opto-fb

iso401-a

Q40

2-e

Q401-s

U401-1

C408-2

U401-2iso401-b

U402-e

U402-ref

U402-rt

U401-3

f+V T401-1

T401-8

R419-2

U402-ct

R405215

C409470pf

R4031K

+C405100uF

+C407100uF

R40710

D405BAV99L

1

3

2

R4095.11K

R408100

C410.01uF

R4060.2 R410

7.5K

Q402MMBT3906L 3

12

C414.047uF

R4115.11K

U402

LM3524DM

12

16

15

945

10

67

12111314

3

8

V -V+

VREF

VIN

COMP+SENSE-SENSE

SHTDWN

RTCT

CAEACBEB

OSCOUT

GN

D

+ C41210uF

U4104N25

1 6

2

5

4

C408.01uf

R40210K

R404196K

C402.047uF

C404.047uF

C420.047uF

C4112200pF

R42210K

+

-U401ALM358

3

21

84

D403

MBRS130T3

D401MBRS130T3

R4235.11K

R40110K

C433470pf

R419215

Q401MTD3055V

23

1

4

R41710K

TP459

TP462

TP464TP463

TP450

TP449

TP453

TP454

TP456

TP458

TP451

TP455

TP457

TP466

T401

IsoXfmr

5

8

1

2

3

4

IsolationBarrier

PatientIsolatedCircuits

GroundedCircuits

6.1.1 Linear Regulators and Filtering – Model 621From the raw f+V and f-V voltages (labeled fVcc and fVee on model 621), the following supplies aregenerated for the various patient isolated circuits:1. iso+5dig: Regulated 5V supply. This voltage is used to power the opto-isolators and digital control

logic. This is also the reference voltage used in the regulation of f+V.2. f+5V: Regulated +5V supply: Filtered and buffered from iso+5dig, this voltage is used for the A/D

reference.3. fVcc: This voltage is used to power the Op-Amps used in the ECG and A/D circuits. This voltage also

powers the Nonin SpO2 electronics.4. fVee: This voltage is used to power the Op-Amps used in the ECG and A/D circuits.

R41610K

SS

C417680pf

C401.047uF

fVcc

U403LP2951C

873

62

15

4

VINFDBKSHTDN

TAPSENS

VOUTERR

GN

D

S

iso+5Vdig

U401-7

S

+

-

U401BMC34072

5

67

84

R415100

C416.047uF

+C406100uF

+C4184.7uF

S

fVcc

U403-7

S

S

+C4151uF

S

C403.047uF

U401-5

f+5V



6.1.1 Linear Regulators and Filtering – Model 622 and 623

From the raw f+V and f-V voltages, the following supplies are generated for the various patient isolatedcircuits:5. iso+5dig: Regulated 5V supply. This voltage is used to power the opto-isolators, digital control logic,

and 5V digital supply for the Nellcor SpO2 board.6. s+5V: Regulated +5V supply: Analog 5V supply for the Nellcor SpO2 board. This is also the

reference voltage used in the regulation of f+V.7. f+5V: Regulated +5V supply: Filtered and buffered from s+5V, this voltage is used for the A/D

reference.8. s-5V: Regulated –5V supply: Analog –5V supply used for the Nellcor SpO2 board.9. fVcc: LC Filtered voltage, derived from f+V. This voltage is used to power the Op-Amps used in the

ECG, Respiration, Temperature, and A/D circuits.10. fVee: LC Filtered voltage, derived from f-V. This voltage is used to power the Op-Amps used in the

ECG, Respiration, Temperature, and A/D circuits.

S

S

S

S

S

S

S

S

S

S

S

S

SS

S

S SS

fVcc

iso+5Vdig

s+5V

fVee

s-5V

f+V

f-V

f+5V

f+V

U40

3-fb

U401-7U401-5

+

C421

1uF

C401.047uF

TP468

L401 220uH

U40479L05

2 1367

5

IN OUTINININ G

ND

+ C43110uF

TP452

+ C4151uF

+ C43210uF

+ C406100uF

C403.047uF

C430.047uF

U40778L05

8 1

2 3 6 7

IN OUT

GN

D

GN

D

GN

D

GN

D

+ C43410uF

C424.047uF

+ C43510uF

U403LP2951C

873

62

15

4

VINFDBKSHTDN

TAPSENS

VOUTERR

GND

L402 220uH

+C4184.7uF

C417680pF

TP461TP460

+

-

U401BLM358

5

67

84

R41610K

TP465

R415100

C416.047uF

Isolated Supply VoltagesRegulation and Filtering


U401 – LM358 Single supply opamp, able to operate at low voltagesThis part is available from multiple vendors.

U402 – LM3524PWM controller, voltage feedback.This part is from National Semiconductor.Other vendors build this part, but not all are identical, different package

styles,slightly different topology from alternate vendors.

U403 – LP2951CLow dropout precision 5V regulator, available from multiple vendors.Low dropout important for start-up operation.Precision regulator not necessary.

U404 – 79L05 -5V regulator, general purpose, available from multiple vendors.U407 – 78L05 5V regulator, general purpose, available from multiple vendors.

Transistors:Q401 – MTD3055V30V FET, .15Ohm; similar parts from alternate vendors available.Q402 – mmbt3906pnp, general purpose BJT.

Diodes:



D405 – BAV99silicon diode, general purpose.D401, D403 Schottky, medium power. Used shottky for increased efficiency.Inductors:L401, L402 SMT inductors, used for supply filtering.

Alternative parts should match series R and saturation current.Resistors:

R406 0.2Ohm, 1/4Watt resistor – tolerance not critical.All others: general purpose, 1% MF, 1/8watt.

Capacitors:C405-C407 25V, 100uF Aluminum electrolytic, general purpose.C415, C421 16V tantalum, 1uF, general purpose.C418 16V tantalum, 4.7uV, general purpose.C431-342, C344-43516V tantalum, 10uF, general purpose.C411 2200pF, 5%, X7R ceramic (should use 5% vs. 10%)C433, C417 5% COG ceramic – tolerance not importantAll Other caps: X7R ceramic, 10%, general purpose.

Transformer:T401: Custom Transformer, designed for low capacitance, high isolation

voltage.Opto Isolator:U410: 4N25T Standard 4N25 from Motorola with special lead bend (0.4in vs. 0.3in)

Selected for larger breakdown voltage.

6.1 A/D Circuits

6.1.1 PWM A/D

A pulse width modulator is used as an A/D converter. The PWM runs at a 1.2KHz rate, synchronized bythe A/D sync signal. A/D sync is low for 52.1uSec, high for 781.25uSec. Using the values shown, theintegrator will ramp down 10.01V, and ramp up 25V. The voltage at the integrator output (U601-1) islimited to about 5V [5V*(73.2/83.2) + Vdiode)]. Then, the integrator starts at 5V and ramps linearlydown to –5V.

The analog input voltage to be digitized and the integrator output are the inputs to a comparator. Theoutput of the comparator is low at the start of an A/D cycle, and switches high as the integrator rampdrops below the input voltage being digitized (see the timing diagram below). A/D conversion isaccomplished by measuring the width of the PWM output signal. The A/D timer runs at 25.175MHz,then the A/D resolution is about 21000 counts (over 14 bits). Hysteresis is added to the comparator toavoid oscillations during switching. Note that since the output of the comparator is low at the start ofthe A/D cycle, a resistor divider is formed at the comparator input. This divider reduces the Analog-Insignal by 0.75% [464K/(464K+3.48K)].

Component Selection:IC’s:U601 – MC34072Single supply bipolar op-amp

Need an op-amp with a large output swing, otherwise general purposeOK.

U602 – LM311Single supply, relatively fast comparator, available from multiple vendors.U604 – 74HCT04Input inverter used to guarantee rail-rail drive signal to integrator.

Output inverter used to buffer comparator output, drive opto-isolator.Diodes:D601 mmbd15003Low leakage diode, available from multiple vendors.Resistors:R601 – R608 general purpose, 1% MF, 1/8watt.Capacitors:



C603 5% COG ceramic.C601 Polypropylene, 100V, 2.5%

Low Temperature Coefficient capacitor used.Tolerance not important for gain (A/D calibrated by measuring reference voltages)Tolerance is important to ensure adequate A/D range, negative limit set be integrator

output voltage swing.

EfVee

fVcc

E

f+5V

fVee

fVcc

E

iso+5Vdig

f+5V

Analog In

PWM-Out

U6

02

-7

U601-2

U604-10

D601-2

U6

02

-5

U6

02

-2

U601-3

U601-1 U602-3

R607464K

R6081K

R60110K

R60346.4K

R6063.48K

C601

1000pF

C603680pF

D601MMBD1503A

1

3

2

R60410K

+

-U601AMC34072

3

21

84

R60273.2K

+

- U602LM311

2

37

5 64 1

8

R6053.48K

U604D74HCT04

9 8

14

7

PWM-Out

IntegratorInput

+5V

-5V

(U604-10)

PWM A/DConverter

833uSec

52uSec

Analog In

ComparatorInputs

(U604-8)

f+5V

E

A/D-sync

U604E74HCT04

11 10

14

7

PWM-timer

6.1.2 A/D MultiplexerThe model 621 uses an 8-channel multiplexer, the model 622/623 uses a 16-channel multiplexer, toselect the analog signal to be digitized. Control of the multiplexer is through a serial communicationchannel from the main CPU. The following signals are digitized:

1. Ground Ground Reference for digitized signals, used in calibrating the A/D converter2. ECG Amplified ECG signal3. V Buffer Output of the V-lead buffer, used to determine leads off4. LL Buffer Output of the LL-lead buffer, used to determine leads off5. LA Buffer Output of the LA-lead buffer, used to determine leads off6. RA Buffer Output of the RA-lead buffer, used to determine leads off7. f1.24V Reference Voltage, used in calibrating the A/D converter8. RL Output Output of the RL amplifier9. Patient Temp Analog voltage representing patient Temperature (model 622/623 only)10. Respiration Amplified Respiration signal (model 622/623 only)11. Resp Leads Off DC impedance for respiration, used to determine respiration Leads off

(model 622/623 only).

Component Selection:IC’s: U603, U6098:1 CMOS analog Mux, 4000 series logic

Must not use 74HC series logic, voltage supply limits are exceeded.



fVcc

fVee

fVeefVcc

E

E

E

E

LA

vRL

V+

RA

LL

Analog ECG

f+1.24V

Resp-LdsOffAn-Resp

Patient-Temp

Mux B

Mux A

Analog In

Mux-A/D-AMux-A/D-BMux-A/D-C

U6034051

13141512

1524

61110

9

3

168 7

X0X1X2X3X4X5X6X7

INHABC

XVD

DV

SS

VEE

U6094051

13141512

1524

61110

9

316

8 7

X0X1X2X3X4X5X6X7

INHABC

XVD

DV

SS VEE

MuxA

MuxB

Note: U609 not used in model 621.

6.1 Serial Communication

Serial data is transmitted to the isolated circuits through Optical Isolators. The following signals aretransmitted from the CPU board to the isolated circuits:

1. FE-Serial-Data:Serial Data transmitted from the CPU board to the Isolated circuits.2. FE-Data-Clk: Serial Data Clock.3. A/D Clk: Serial Data latch. Also used as clock for PMW A/D converter.

Serial Data is converted to a parallel format using Shift Register U605 and U606. The following Data istransmitted from the CPU board to the isolated circuits:

1. Mux-A/D-A Control bit A for A/D Mux2. Mux-A/D-B Control bit B for A/D Mux3. Mux-A/D-C Control bit C for A/D Mux4. Mux-Lds-A Control bit A for ECG Lead Select Mux5. Mux-Lds-B Control bit B for ECG Lead Select Mux6. Mux-Lds-C Control bit C for ECG Lead Select Mux7. Sw-RLD-RA Switch Reference Electrode to RA8. Sw-RLD-LA Switch Reference Electrode to LA9. Sw-RLD-LL Switch Reference Electrode to LL10. Sw-RLD-RL Switch Reference Electrode to RL11. MonBW Select 0.5Hz ECG high pass pole (used to restore ECG baseline).12. MuxB 0 – Select A/D Mux B; 1 - Select A/D Mux A13. Sw-RLD-V Switch Reference Electrode to V14. Sw-RespResetSwitch Respiration High Pass Pole, used to restore baseline (model 622/623)15. SpO2Reset Reset Nellcor SpO2 board (model 622/623 only)16. Resp-Off Turn respiration off when respiration not used (shuts down drive signal)

(model 622/623 only).

Component Selection:



IC’s: U605, U60674HCT595 Serial In – Serial/Parallel out shift registerCould substitute 74HC595, do not need TTL compatible inputs.

ED

ED

iso+5Vdig

SW-RLD-LL

SW-RLD-RASW-RLD-LA

SW-RLD-RL

SpO2-Reset

Mux-Lds-C

Resp-Off

Sw-RespReset

Mux-Lds-BMux-Lds-AMux-A/D-CMux-A/D-BMux-A/D-A

Sw-RL-VMuxB

MonBW

FE-Serial-Data

FE-Data-Clk

A/D-Clk

U605-out

U606

74HCT595

14

1110

1213

151234567

9

16

8

SER

SRCLKSRCLR

RCLKG

QAQBQCQDQEQFQGQH

QH

VCC

GND

U605

74HCT595

14

1110

1213

151234567

9

16

8

SER

SRCLKSRCLR

RCLKG

QAQBQCQDQEQFQGQH

QH

VCC

GND

6.2 Signal IsolationOptocouplers are used to electrically isolate signals. The following signals are transmitted across theisolation barrier through the optocouplers:

1. SpO2 out: SpO2 serial data, waveform and status information. Opto U411 Data from the SpO2 board to the CPU board.2. Serial Data: Serial Control data for isolated circuits. Opto U613 Data from the CPU board to isolated circuits.3. Serial Data Clock:Data clock for serial control data. Opto U612 Clock from the CPU board to isolated circuits.4. ADC Clock Clock for PWM A/D converter, also used to latch control shift registers. Opto U611 Clock from the CPU board to isolated circuits.5. PWM A/D dataA/D Pulse width data. Opto U610 Pulse width data from isolated circuits to CPU board.6. Respiration ClockClock for Respiration drive circuit (same signal as power supply sync) U710 Clock from the CPU board to isolated circuits (model 622/623 only).

Component Selection:Opto’s: U411,U610-U613,U710Hewlett Packard HCNW4503.

Phillips may second source this part;HCNW Opto selected for the following reasons:

High Isolation Voltage (5KVAC)High CMR Transient Immunity, >15KV/uSec

Resistors: general purpose, 1% MF, 1/8watt.Note: RC Filters at output of optical isolators decrease susceptibility to



ESD,ESU, and Power Supply Fast Transients.

Capacitors: <1000pF: 5% COG ceramic.>=1000pF 10% X7R ceramic.

6.3 ECG Circuits

6.3.1 OverviewAtlas provides a 5-wire front end, and will be compatible with both a 3-wire and 5-wire cable. Monitor(0.5Hz to 40Hz) Extended (0.05Hz to 100Hz) bandwidth are provided. The ECG amplifier alwaystransmits 0.05Hz to 100Hz data to the CPU board (unless in baseline restore mode), additional filteringfor Monitor Bandwidth is implemented in software

6.3.2 Defib Protect, RFI FilteringThe ECG lead set includes a 1K resistor for current limiting. The neon bulbs act as a voltage clamp,limiting voltage to about 100V. Neons are chosen for their low capacitance and high DC impedancewhen off. Series resistors and diode clamps are used as a second set of protection circuits for the front-end amplifiers. Resistors R506, R507 and Diodes D506, D507, are used to reverse bias the lead clampdiodes (D501 to D505). Two passive RC filters are used to reduce susceptibility to RFI and ESU.

Component Selection:Diodes:D506, D507 5.1V zener, 1/8W, general purpose (model 622/623).

BAV99, dual series diode, general purpose (model 621)Note: 5.1V zener could be used in model 621.Note: Must use zener in model 622/623, protection diodes would

interferewith impedance respiration signals.

D501–D505: mmbd1503Low leakage diodes, part available from multiple vendor. Must use low leakage diode for input bias current and leads off circuits.Resistors: general purpose, 1% MF, 1/8watt.Capacitors: 5% COG ceramic.

fVcc

S

fVee E

E E

RA

+clamp

D501-3

-clamp

N501LAMP NEON C506

220pF

D5075.1V

1 3

R50710K

C501220pF

D5065.1V

13

D501MMBD1503A

1

3

2

R50610K

R50810K

R50151.1K

Defib ProtectRFI Filtering

To Buffer Amp

Note: Typical protection for each lead wire. Model 621 uses a dual silicon series diode in place of zener diodes D506 and D507.

6.3.3 Front End Buffer - 1st Gain StageGain of the first stage is 9.26 (1+10K/1.21K). Bias current for each input buffer is set to 1.25V/44Meg =28nA (VldsOff = 1.25V). On a leads-off condition, the two 22Meg resistor drives the input of the buffer to1.25V (VldsOff), and the amplifier output saturates high (at about 5.5V). The voltage out of each buffer is



monitored to detect a leads-off condition.

Component Selection:IC’s:U501,U502: MC34002BiFet Opamp, Can substitute with TLO72.

BiFet Opamp chosen for low bias current, low current and voltage noise.Note: For ECG circuits, current noise more critical than voltage noise.MC34002 and TLO72 have tested to have good performance to RF AM

fields.Resistors:R514-R524 Precision 0.1%MF, 1/8watt, low Temperature coefficient.. 0.1% resistors required to maintain good CMRR.R509,511,513,5151/8Watt, 5%, Metal FilmR557-R560Capacitors:C510-C513 5% COG ceramic.

fVcc

fVee

E

VLdsOff

OutIn U501-3

U501-2

R509-1

+

-U501A

MC34002

3

21

84 C510

220pF

R5181.21K

R51710K

R55722Meg

R50922Meg

0.1%

0.1%

Input BuffersGain = 9.26

6.3.4 Wilson Network - Lead Select MuxA 5 wire front end must be able to render the following vectors:

I LA - RAII LL - RA

III LL - LAaVR RA - 1/2*(LA + LL)aVLLA - 1/2*(RA + LL)aVFLL - 1/2*(LA + RA)

VV - 1/3*(RA + LA + LL)A resistor divider network (Wilson Network) is used to create the terms above. These vectors are thenswitched though the two Lead Select Mux’s and into the differential amplifier.

Component Selection:IC’s:U505, U506: CD4051 8:1 CMOS analog Mux, 4000 series logic

Must not use 74HC series logic, voltage supply limits are exceeded.Resistors:R529-R537 general purpose, 1% MF, 1/8watt



E

fVee

E

E

fVee

fVcc

fVcc

E

V+

RA

LA

LL

RA

V-

LL

aVL

RA

aVF

LAaVR

LA

V+

LA mux+

LL

mux-

RA

R533 10K

R536 10K

R530 10K

R529 10K

R532 10K

U5064051

131415121524

611109

3

168

7

X0X1X2X3X4X5X6X7

INHABC

X

VD

DV

SS

VEE

R534 10K

R535 10K

R537 10K

R531 10K

U5054051

131415121524

611109

3

168

7

X0X1X2X3X4X5X6X7

INHABC

X

VD

DV

SS

VEE

Lead Select

WilsonNetwork

6.3.5 Differential Amplifier and Slew rate limitA traditional 3-opamp gain stage (U507 and U508) is used to construct the differential amplifier. Thetopology is modified slightly with the addition of slew rate limiting (U509). The ECG signal is slew ratelimited to about 100V/sec. This is done to minimize distortion of the ECG trace in the presence or largepace pulses. The differential outputs of this amplifier stage are used as input to the Right Leg Driveamplifier.

Component Selection:IC’s:U507 – MC34002Bi-Fet OpAmp, can substitute TLO72.

OpAmp not critical in this location, most general purpose op-amps OK.U508A – AD712Low Offset Voltage, Low noise BiFet OpAmp.

Low Offset not required, but needed for U508B.U509 – LMC7101Single supply CMOS opamp.

Chosen for package style (sot23-5).This part added late, limited PC board real estate available.

Resistors:R544 – R547 Precision 0.1%MF, 1/8watt, low Temperature coefficient.. 0.1% resistors required to maintain good CMRR.R565 general purpose, 1% MF, 1/8watt.Capacitors:C542, C544, C5455% COG ceramic.C543 10% X7R ceramic.



fVcc

fVee

E

fVee

fVcc

fVcc

E

fVcc

E

fVee

fVee

mux+

mux-

SingEnd Out

u508-2

diff-

u509

-4

U508-3

u501

-8

diff+

C5451000pF

+

-

U507AMC34002

3

21

84

R565121K

C543.047uF

R54610K

R54510K

C542220pF

R54410K

+

- U508AAD712

3

21

84

+

-

U507BMC34002

5

67

84

C5441000pF

R54710K

-

+ U509LMC7101

4

31

25

0.1% 0.1%

0.1%

Diff Amp and Slew Rate LimitDC Gain = 1

0.1%

6.3.6 Right Leg Drive Amplifier

The right leg amplifier performs two functions. First is to provide bias current to the input bufferamplifiers. Second, to reduce 60Hz interference (increase CMR). Patient Common mode signals areamplified and inverted, and this resultant signal used to drive the patient. Gain of the RLD amplifier at60Hz is maximized, while keeping the system gain stable. The RLD output is mux’d to the appropriatewire depending on the chosen input vector. For example, when looking at Lead I (LA-RA), the RLDsignal is switched to the LL buffer.

Component Selection:IC’s:U505 – DG202 Quad Analog Switch, Maxim Semiconductor.

This part is specially selected for low off leakage.Alternate suppliers may not meet Maxim’s specification.

U503 – MC34002Bi-Fet OpAmp, can substitute TLO72.Resistors:R516, R525 – R528general purpose, 1% MF, 1/8watt.Capacitors:C514 10% X7R ceramic.



E

fVcc

E

fVeefVcc

fVee

Sw-RLD-LA

Sw-RLD-RA

Sw-RLD-RL

Sw-RLD-LL

To RL

To LL

To LA

To RADiff+

Diff-

RL-mux

C514-2

U503-2

U504

DG202CSE

31

1416

119

68

1345

2

15

10

7

S1IN1

S2IN2

S3IN3

S4IN4

V+V-GND

D1

D2

D3

D4

TP551

R52510K

+

-

U503AMC34002

3

21

84

R52851.1K

R5271K

TP552

C5140.1uF

R52610K

R51610K

RLD Amp

RLD Mux

6.3.7 High Pass and Gain StageThe signal from the output of the differential amplifier is AC coupled before a final stage ofamplification. The High Pass Pole is set to 0.05Hz (a 3.3 second time constant). Large DC signals aresometimes present, for example, following a Leads Off condition. In order to quickly restore the ECGbaseline, a transistor switch (Q504, Q505) is used to change the AC pole time constant to 0.33 seconds.Op Amp U508 provides the final amplification prior to the A/D converter.

Component Selection:IC’s:U508B – AD712Precision Bi-Fet OpAmp; Low Offset, Low Bias Current, Low noise.Resistors:R548 – R553 general purpose, 1% MF, 1/8watt.Capacitors:C515 63V, 5%, polyester.

Polyester for low dielectric absorption, needed when switching High PassPole.

C516, C517 10% X7R ceramic.

E

fVcc

E

E

fVeeE

An-ECG

Sw-MonBw

Diff-out U508-5

Q504-d

U508-6

Q504-g

ecg-hp

Q504-s

+

-U508BAD712

5

67

84

Q5042N7002

3

1

2

R55173.2K

R553100K

R549110K

R5521K

C516.047uF

Q5052N7002

3

1

2

C5153.3uF

R55019.6K

R5481Meg C517

.01uF

High Pass (0.05Hz or 0.5Hz)2-pole low pass

Gain StageGain = 74



6.4 Temperature Amplifier (Model 622/623 only)The temperature option of Atlas is designed to operate with YSI-400 series probes. This probe has anegative temperature coefficient, R@30C = 1815Ohms, R@40C = 1200Ohms. The temperature amplifieris configured as a non-inverting gain stage. The positive input to the amplifier is a 1.25V reference. Theoutput of the temperature amplifier is V = Ref*(1+Rfb/Rthermistor).

The A/D converter will digitize the An-Temp input, along with the reference voltage and ground. Thegain of the A/D is calibrated from the reference voltage measurement, and any drifts in the referencevoltage or A/D gain are continuously compensated during monitoring.

Component Selection:IC’s:U608B – AD712Precision BiFet Opamp

Op-Amp must have low offset voltage and current, plus low drift.BiFet used for good RF susceptibility performance.

Diodes:D602 BAV99 Gerneral Purpose Diode, multiple vendors.

Used for ESD protection.Resistors:R624 – R626 General purpose, 1% MF, 1/8watt, R26 used for ESD protection.R627 Precision 0.1%MF, 1/8watt, low Temperature coefficient.Capacitors:C633–C636 10% X7R ceramic; C636 for ESD protection, it may not be necessary.

E

E

fVee

fVcc

f+1.24V

+Clamp-Clamp

Patient-Temp

U608-3U608-1

Temp-In

D602BAV99L

1

3

2

C633.01uF

J601

CON2

12

R627 1.21K

R62451.1K

C635 .01uF

C634 .01uF

R6261K

R6251K

C6362200pF

+

-

U608AAD712

3

21

84

TemperatureAmplifier

TemperatureThermistor

0.1%

6.5 Impedance Respiration (Model 622/623 only)

6.5.1 OverviewImpedance respiration is accomplished by measuring a change of resistance across the patient’s chestduring breathing. The RA and LA electrodes (Lead I) are uses to acquire the respiration signal. A currentsource is driven through the patient, and the voltage developed across the patient is measured. Thechange in resistance caused by respiration is small, in the order of 1 Ohm. This small change must be



measured on top of a large baseline impedance, typically 100 to 1000 Ohms.

6.5.2 Signal Source – Current DriveAn AC current source is used as the input signal, a 34.8KHz square wave. The Power supply sync signal,at 76.8KHz, is transmitted across opto isolator U710. Flip Flop U701, configured as a divide by 2,converts this signal to a 34.8KHz. Current through the patient is about 150uA Pk-Pk, set by the output ofU710 (5V) and the circuit series impedance, 69K including cable resistance. The impedance of thepatient is small (<2K) compared to the series impedance and has minimal affect on the magnitude of thedrive current. Diode clamps are used to protect the respiration circuits in the event of a Defibrillationpulse.

Component Selection:IC’s:U710 – HCNW4503Opto Isolator, 1MB (Hewlett Packard)

Part chosen for high breakdown voltage and good CMRPhillips may second source this part.

U701- 74HC74 D Flip-Flop, available from many vendorsDiodes:D701,702 mmbd1503Low leakage diodes, part available from multiple vendor. Must use low leakage diode for input bias current and leads off circuits.Resistors:R701-R704 General purpose, 1% MF, 1/8wattCapacitors:C701-C702 COG,50V,5%

Note: precision capacitor not critical for this application, but is necessary to insure good input impedance matching for ECG circuits.

E

E

f+5V

Resp-Off

Right-Arm

+Clamp

Left-Arm

-Clamp

Resp-Clk

RespDr+

D702-3

D701-3 C701-1

RespDr-C702-1

+ C7194.7uF

D701MMBD1503A

1

3

2

C7021000pF

D702MMBD1503A

1

3

2R70431.6K

R70331.6K

C7011000pF

R7011.96K

R7021.96K

U701A74HC74

2

3

5

6

144

7

1

D

CLK

Q

Q

VCC

PR

GND

CL

RespirationDriveCircuit

6.5.3 Differential Amplifier and Peak DetectorThe AC current driven though the patient develops a voltage across the RA to LA electrodes. This signalis measured and amplified with the Differential Amplifier formed by U702A/B. This amplifier convertsthe differential voltage across the patient to single ended signal, with a gain of 16.8. Inverting this signal(U703A), and summing the original signal and inverted signal through the dual Diode D705 then forms asynchronous peak detector. Then, the voltage on C711 is the DC resistance seen across the RA to LAbuffer. This baseline resistance is digitized, and if the signal is too large (>2.5K), a Respiration LeadFault message is displayed. Note that this circuit measurement includes the two 1K resistors in the EKGcable set. This 2K resistance is subtracted in software before determining a leads off condition.

Component Selection:IC’s:U702,U703 – AD712Presision Bi-Fet Op-amp

Need high slew rate op-amp, and low bias current.Bi-Fet chosen for good RF immunity.



Diodes:D703,704 mmbd1503Low leakage diodes, part available from multiple vendor. Must use low leakage diode for input bias current and leads off circuits.D705 – mmbd354Dual common cathode diode

Schottky part used, silicon replacement would be OK.Resistors:R707-R717, R724General purpose, 1% MF, 1/8wattCapacitors:C701-C702 COG, 50V, 5% ceramic

Note: precision capacitor not critical for this application, but is necessary to insure good input impedance matching for ECG circuits.

C711, C720 X7R, 50V, 10% ceramic

E

fVee

fVcc

E

fVee

E

fVee

fVcc

fVcc

E

EE

E

Resp-DC

Left-Arm

Right-Arm

D605-C

+Clamp-Clamp

U702-6

D7

03

-1

U7

03

-2

U702-1

U702-2

U702-5D704-3

U702-3D703-3

U702-7

R7163.16K

+

-

U702B

AD7125

67

84

R7153.16K

R710464K

+

-

U703AAD712

3

21

84

R7121K

R71415.8K

D704MMBD1503A

1

3

2

R71115.8K

C707330pF

C706330pF

D703MMBD1503A

1

3

2

D705MMBD354LT1

1

3

2

R7131K

R7081.96K

+

-U702AAD712

3

21

84

R709464K

R7071.96K

C7110.1uF

R7173.16K

C720.047uF

R724196KRespiration

Diff Amp

6.5.4 Gain and FilteringThe DC content (baseline resistance) of the respiration signal is not needed, so the signal is next ACcoupled, and additional gain applied before digitization. Low pass filtering is performed at this stage toreduce high frequency noise outside the respiration signal bandwidth. A baseline-reset circuit(transistor switch Q701) is used to quickly restore the high pass pole if excessive DC voltage is present,for example following a Leads-Off condition.

Component Selection:IC’s:U703B – AD712Need Low Offset voltage, Low input bias current.Diodes:D706 – mmbd15033Low reverse leakage currentTransistors:Q701 – mmbf4393N-Channel JFET, low off leakage current, low turn-off voltage.

This part is available from many vendors.Resistors:R718 – R723 General purpose, 1% MF, 1/8wattCapacitors:C712 63V, 5%, polyester.

Polyester for low dielectric absorption, needed when switching High PassPole.



C713, C714 X7R, 50V, 10% ceramic

E

E

fVee

E

fVcc

E

E

Resp-Reset

An-Resp

Q701-d

Resp-AC

Q70

1-g

U703-6

U703-5

R722316

+

-U703BAD712

5

67

84

D706MMBD1503A

1

3

2

R720100K

C714.047uF

C7123.3uF

R71951.1K

R7231Meg

Q701MMBF4393L

23

1

C7130.1uF

R721316K

R718825K

B.W. = .06Hz to 16 Hz Gain =1000B.W. = 10Hz

D605-C

6.6 SpO2 CircuitsThe SpO2 transducer senses oxygen content of functional arteriolar hemoglobin through the use of light(red and infrared) passed through the sensor. The reflective characteristics of hemoglobin at thewavelengths used allow the pulse oximetry circuits to obtain changing saturation levels. This data isthen processed to obtain the oxygen saturation percentage and pulse rate.

Nellcor or Nonin Medical provides the SpO2 board (Nonin only for the model 621). The SpO2 boardincludes amplifiers and processing, and transmits serial data to the CPU board (Waveform data, SpO2%,and pulse rate). The Atlas monitor provides electrical isolation (power and data) to the SpO2 board.Note that you must use Nonin probes with the Nonin SpO2 board, and Nellcor probes with NellcorSpO2 board.



Service Manual 6200-43-E Rev B Welch Allyn Atlas Monitor 1

Appendix B

Part # Description

620001-502 MAIN PCB ASSY - LOW END620004-501 ATLAS CPU PCB ASSY620007-501 FRONT PANEL DISPLAY PCB ASSY.620089 BATTERY, 3V LITHIUM620105-3 BATTERY DOOR620119 LATCH SPO2620125-502 MAIN CASE/HANDLE SET W/PANEL620126-4 BEZEL SET - HEAT TRANSFER620131-1 MAIN FOAM620132-2 TOP FOAM620133 BP FOAM620142-1 METAL HOUSING-BOTTOM (LG)620144 BRACKET SPO2620150-1 AC/DC POWER SUPPLY620156 PUMP620157 STEPPER VALVE620158 CHECK VALVE620163 CABLE ASSY -PUMP/PNEUMATIC VLV620165 CABLE-CONN TO MAIN BD,ECG620167 CABLE-MAIN BD TO DISPLAY BD620168-2 CABLE ASSY POWER SUPPLY620171 CABLE ASSY SPEAKER620172-2 CABLE ASSY AC620181-1 LABEL,BOTTOM,LOW END620182 LABEL - RS232620187-501 PNEUMATIC SUB ASSY620189 4-20 X 5/16 SLT/TORX PN PL ZIN620192-1 PNEUMATIC CONNECTOR620193 NUT, HEX 5/16-32 X.095 PNEUM620194 WASHER,FLT.33 X.62 X.049 PNEUM620197 BUSHING, SPLIT NYLON620198 FOOT620200-501 CRT SUB ASY620205 4-40 X .31 TX PN MC ST ZN620214-1 TUBING, SILICONE, 1/16 .50"620215-1 TUBING, SILICONE 1/8 X1.00"620215-2 TUBING, SILICONE 1/8 X 2.125"620215-3 TUBING, SILICONE 1/8 X 7.50"620215-4 TUBING, SILICONE 1/8 X.750"620216 FITTING Y” 1/8 X 1/8 X 1/8"620217 FITTING, T” 1/8 X 1/16X 1/8"620373-501 NONIN SUB ASSEMBLY620378-1 ATLAS KEYPAD(BP START/CANCEL)620378-2 ATLAS KEYPAD(TREND/LEAD/PRINT)620378-3 ATLAS KEYPAD(SP02/CLOCK/POWER)620378-4 ATLAS KEYPAD(4 ALARMS)620378-5 ATLAS KEYPAD(SILENCE ALARM)620378-6 ATLAS KEYPAD(SILENCE BELL)620379-501 MONITOR BOX W/INSERTS

621S0 Parts List

2 Welch Allyn Atlas Monitor Service Manual 6200-43-E Rev B

Appendix B

Part # Description

620384-2C LOW LABEL W/FREEZE (CHINESE)620384-2E DISPLAY LABEL-LOW/FREEZE/ENG620384-2F DISPLAY LABEL-LOW/FREEZE/FR.620384-2G LOW LABEL W/FREEZE (GERMAN)620384-2I LOW LABEL W/PRINTER (ITALIAN)620384-2J LOW LABEL W/FREEZE (JAPANESE)620384-2P LOW LABEL W/FREEZE (PORT)620384-2S LOW LABEL W/FREEZE (SPANISH)620385 SUB-LABEL DISPLAY620386 FASTON TAB620388-1 LABEL, NONIN SENSOR620393 PWR SUPPLY INSULATOR LABEL620394-1 WASHER, SHOULDER PLATED620403 FLAT TIE HOLDER620432 ATLAS MONITOR CALIBRATION CERT620494-501 ATLAS FAN KIT761077-1 WIRE TIE

Parts List 621S0 (continued)


Appendix B

Part # Description

620001-502 MAIN PCB ASSY - LOW END620004-501 ATLAS CPU PCB ASSY620007-501 FRONT PANEL DISPLAY PCB ASSY.620013-502 PRINTER PCB620089 BATTERY, 3V LITHIUM620105-3 BATTERY DOOR620117 PRINTER DOOR BUTTON620119 LATCH SPO2620125-501 MAIN CASE/HANDLE SET620126-4 BEZEL SET - HEAT TRANSFER620131-1 MAIN FOAM620132-2 TOP FOAM620133 BP FOAM620134-501 GEAR ASSY620138-501 PRINTER DOOR ASSY620139-501 PRINTER FRAME ASSE620140-501 MAIN PRINTER ASSY620142-1 METAL HOUSING-BOTTOM (LG)620144 BRACKET SPO2620150-1 AC/DC POWER SUPPLY620156 PUMP620157 STEPPER VALVE620158 CHECK VALVE620163 CABLE ASSY -PUMP/PNEUMATIC VLV620165 CABLE-CONN TO MAIN BD,ECG620167 CABLE-MAIN BD TO DISPLAY BD620168-2 CABLE ASSY POWER SUPPLY620171 CABLE ASSY SPEAKER620172-2 CABLE ASSY AC620176 CABLE ASSY - PRINTER620177 CABLE ASSY - PRINT HEAD620181-1 LABEL,BOTTOM,LOW END620182 LABEL - RS232620187-501 PNEUMATIC SUB ASSY620189 4-20 X 5/16 SLT/TORX PN PL ZIN620192-1 PNEUMATIC CONNECTOR620193 NUT, HEX 5/16-32 X.095 PNEUM620194 WASHER,FLT.33 X.62 X.049 PNEUM620197 BUSHING, SPLIT NYLON620198 FOOT620200-501 CRT SUB ASY620205 4-40 X .31 TX PN MC ST ZN620207 NUT, M3-.5 HEX KEPS ST ZN620214-1 TUBING, SILICONE, 1/16 .50"

621SP Parts List


Appendix B

Part # Description

620215-1 TUBING, SILICONE 1/8 X1.00"620215-2 TUBING, SILICONE 1/8 X 2.125"620215-3 TUBING, SILICONE 1/8 X 7.50"620215-4 TUBING, SILICONE 1/8 X.750"620216 FITTING Y” 1/8 X 1/8 X 1/8"620217 FITTING, T” 1/8 X 1/16X 1/8"620373-501 NONIN SUB ASSEMBLY620378-1 ATLAS KEYPAD(BP START/CANCEL)620378-2 ATLAS KEYPAD(TREND/LEAD/PRINT)620378-3 ATLAS KEYPAD(SP02/CLOCK/POWER)620378-4 ATLAS KEYPAD(4 ALARMS)620378-5 ATLAS KEYPAD(SILENCE ALARM)620378-6 ATLAS KEYPAD(SILENCE BELL)620379-501 MONITOR BOX W/INSERTS620384-1C LOW LABEL W/PRINTER (CHINESE)620384-1E DISPLAY LABEL/LOW/PRINTER-ENG620384-1F LOW LABEL W/PRINTER (FRENCH)620384-1G LOW LABEL W/PRINTER (GERMAN)620384-1I LOW LABEL W/PRINTER (ITALIAN )620384-1J LOW LABEL W/PRINTER (JAPANESE)620384-1P LOW LABEL W/PRINTER (PORT)620384-1S LOW LABEL W/PRINTER (SPANISH)620385 SUB-LABEL DISPLAY620386 FASTON TAB620388-1 LABEL, NONIN SENSOR620393 PWR SUPPLY INSULATOR LABEL620394-1 WASHER, SHOULDER PLATED620403 FLAT TIE HOLDER620494-501 ATLAS FAN KIT761077-1 WIRE TIE

621SP Parts List (continued)


Appendix B

Part # Description

620004-502 ATLAS CPU PCB ASSY620007-501 FRONT PANEL DISPLAY PCB ASSY.620016-501 MAIN PCB ASSY-MID/HIGH END620035 NELLCOR SPO2 BD620038 NELLCOR LABEL (CARTON)620105-1 BATTERY DOOR620105-3 BATTERY DOOR620119 LATCH SPO2620125-502 MAIN CASE/HANDLE SET W/PANEL620126-5 BEZEL SET/MID PRINTED620131-1 MAIN FOAM620132-2 TOP FOAM620133 BP FOAM620142-1 METAL HOUSING-BOTTOM (LG)620143 NUT TEMPERATURE620144 BRACKET SPO2620150-1 AC/DC POWER SUPPLY620156 PUMP620157 STEPPER VALVE620158 CHECK VALVE620163 CABLE ASSY -PUMP/PNEUMATIC VLV620165 CABLE-CONN TO MAIN BD,ECG620167 CABLE-MAIN BD TO DISPLAY BD620168-2 CABLE ASSY POWER SUPPLY620169-2 CABLE ASSY NELLCOR SENSOR620170 CABLE ASSY NELLCOR620171 CABLE ASSY SPEAKER620172-2 CABLE ASSY AC620173 CABLE-TEMP SENSOR TO MAIN BD620175 CABLE ASSY - FAN620178 CABLE ASSY SP02620181-2 LABEL,BOTTOM,MID END620182 LABEL - RS232620187-501 PNEUMATIC SUB ASSY620189 4-20 X 5/16 SLT/TORX PN PL ZIN620192-1 PNEUMATIC CONNECTOR620193 NUT, HEX 5/16-32 X.095 PNEUM620194 WASHER,FLT.33 X.62 X.049 PNEUM620197 BUSHING, SPLIT NYLON620198 FOOT620200-501 CRT SUB ASY620205 4-40 X .31 TX PN MC ST ZN620214-1 TUBING, SILICONE, 1/16 .50"620215-1 TUBING, SILICONE 1/8 X1.00"

622NO Parts List


Appendix B

Part # Description

620215-2 TUBING, SILICONE 1/8 X 2.125"620215-3 TUBING, SILICONE 1/8 X 7.50"620215-4 TUBING, SILICONE 1/8 X.750"620216 FITTING Y” 1/8 X 1/8 X 1/8"620217 FITTING, T” 1/8 X 1/16X 1/8"620377-1 NELLCOR WORKS HERE” LABEL”620377-2 NELLCOR PATENT LABEL620378-1 ATLAS KEYPAD(BP START/CANCEL)620378-2 ATLAS KEYPAD(TREND/LEAD/PRINT)620378-3 ATLAS KEYPAD(SP02/CLOCK/POWER)620378-4 ATLAS KEYPAD(4 ALARMS)620378-5 ATLAS KEYPAD(SILENCE ALARM)620378-6 ATLAS KEYPAD(SILENCE BELL)620379-501 MONITOR BOX W/INSERTS620384-4C MID LABEL W/FREEZE (CHINESE)620384-4E DISPLAY LABEL-MID/FREEZE/ENG620384-4F MID LABEL W/FREEZE (FRENCH)620384-4G MID LABEL W/FREEZE (GERMAN)620384-4I LOW LABEL W/FREEZE (ITALIAN )620384-4J LOW LABEL W/FREEZE (JAPANESE)620384-4P LOW LABEL W/FREEZE (PORT)620384-4S LOW LABEL W/FREEZE (SPANISH)620385 SUB-LABEL DISPLAY620386 FASTON TAB620387 SHUNT620388-2 LABEL, NELLCOR SENSOR620393 PWR SUPPLY INSULATOR LABEL620394-1 WASHER, SHOULDER PLATED620395-501 REPLACEMENT BATTERY SUB ASSY620403 FLAT TIE HOLDER761077-1 WIRE TIE

622NO Parts List (continued)


Appendix B

Part # Description

620004-502 ATLAS CPU PCB ASSY620007-501 FRONT PANEL DISPLAY PCB ASSY.620013-502 PRINTER PCB620016-501 MAIN PCB ASSY-MID/HIGH END620035 NELLCOR SPO2 BD620038 NELLCOR LABEL (CARTON)620105-3 BATTERY DOOR620117 PRINTER DOOR BUTTON620119 LATCH SPO2620125-501 MAIN CASE/HANDLE SET620126-5 BEZEL SET/MID PRINTED620131-1 MAIN FOAM620132-2 TOP FOAM620133 BP FOAM620134-501 GEAR ASSY620138-501 PRINTER DOOR ASSY620139-501 PRINTER FRAME ASSE620140-501 MAIN PRINTER ASSY620142-1 METAL HOUSING-BOTTOM (LG)620143 NUT TEMPERATURE620144 BRACKET SPO2620150-1 AC/DC POWER SUPPLY620156 PUMP620157 STEPPER VALVE620158 CHECK VALVE620163 CABLE ASSY -PUMP/PNEUMATIC VLV620165 CABLE-CONN TO MAIN BD,ECG620167 CABLE-MAIN BD TO DISPLAY BD620168-2 CABLE ASSY POWER SUPPLY620169-2 CABLE ASSY NELLCOR SENSOR620170 CABLE ASSY NELLCOR620171 CABLE ASSY SPEAKER620172-2 CABLE ASSY AC620173 CABLE-TEMP SENSOR TO MAIN BD620175 CABLE ASSY - FAN620176 CABLE ASSY - PRINTER620177 CABLE ASSY - PRINT HEAD620178 CABLE ASSY SP02620181-2 LABEL,BOTTOM,MID END620182 LABEL - RS232620187-501 PNEUMATIC SUB ASSY620189 4-20 X 5/16 SLT/TORX PN PL ZIN620192-1 PNEUMATIC CONNECTOR620193 NUT, HEX 5/16-32 X.095 PNEUM

622NP Parts List


Appendix B

Part # Description

620194 WASHER,FLT.33 X.62 X.049 PNEUM620197 BUSHING, SPLIT NYLON620198 FOOT620200-501 CRT SUB ASY620205 4-40 X .31 TX PN MC ST ZN620207 NUT, M3-.5 HEX KEPS ST ZN620214-1 TUBING, SILICONE, 1/16 .50"620215-1 TUBING, SILICONE 1/8 X1.00"620215-2 TUBING, SILICONE 1/8 X 2.125"620215-3 TUBING, SILICONE 1/8 X 7.50"620215-4 TUBING, SILICONE 1/8 X.750"620216 FITTING Y” 1/8 X 1/8 X 1/8"620217 FITTING, T” 1/8 X 1/16X 1/8"620377-1 NELLCOR WORKS HERE” LABEL”620377-2 NELLCOR PATENT LABEL620378-1 ATLAS KEYPAD(BP START/CANCEL)620378-2 ATLAS KEYPAD(TREND/LEAD/PRINT)620378-3 ATLAS KEYPAD(SP02/CLOCK/POWER)620378-4 ATLAS KEYPAD(4 ALARMS)620378-5 ATLAS KEYPAD(SILENCE ALARM)620378-6 ATLAS KEYPAD(SILENCE BELL)620379-501 MONITOR BOX W/INSERTS620384-3C MID LABEL W/PRINTER(CHINESE)620384-3E DISPLAY LABEL-MID/PRINTER/ENG620384-3F MID LABEL W/PRINTER (FRENCH)620384-3G MID LABEL W/PRINTER (GERMAN)620384-3I MID LABEL W/PRINTER (ITALIAN )620384-3J MID LABEL W/PRINTER (JAPANESE)620384-3P MID LABEL W/PRINTER (PORT)620384-3S LOW LABEL W/PRINTER (SPANISH)620385 SUB-LABEL DISPLAY620386 FASTON TAB620387 SHUNT620388-2 LABEL, NELLCOR SENSOR620393 PWR SUPPLY INSULATOR LABEL620394-1 WASHER, SHOULDER PLATED620395-501 REPLACEMENT BATTERY SUB ASSY620403 FLAT TIE HOLDER761077-1 WIRE TIE

622NP Parts List (continued)


Appendix B

Part # Description

620004-502 ATLAS CPU PCB ASSY620007-501 FRONT PANEL DISPLAY PCB ASSY.620016-501 MAIN PCB ASSY-MID/HIGH END620035 NELLCOR SPO2 BD620038 NELLCOR LABEL (CARTON)620105-1 BATTERY DOOR620105-3 BATTERY DOOR620119 LATCH SPO2620125-502 MAIN CASE/HANDLE SET W/PANEL620126-5 BEZEL SET/MID PRINTED620131-1 MAIN FOAM620132-2 TOP FOAM620133 BP FOAM620142-1 METAL HOUSING-BOTTOM (LG)620143 NUT TEMPERATURE620144 BRACKET SPO2620150-1 AC/DC POWER SUPPLY620156 PUMP620157 STEPPER VALVE620158 CHECK VALVE620163 CABLE ASSY -PUMP/PNEUMATIC VLV620165 CABLE-CONN TO MAIN BD,ECG620167 CABLE-MAIN BD TO DISPLAY BD620168-2 CABLE ASSY POWER SUPPLY620169-2 CABLE ASSY NELLCOR SENSOR620170 CABLE ASSY NELLCOR620171 CABLE ASSY SPEAKER620172-2 CABLE ASSY AC620173 CABLE-TEMP SENSOR TO MAIN BD620175 CABLE ASSY - FAN620178 CABLE ASSY SP02620181-2 LABEL,BOTTOM,MID END620182 LABEL - RS232620187-501 PNEUMATIC SUB ASSY620189 4-20 X 5/16 SLT/TORX PN PL ZIN620192-1 PNEUMATIC CONNECTOR620193 NUT, HEX 5/16-32 X.095 PNEUM620194 WASHER,FLT.33 X.62 X.049 PNEUM620197 BUSHING, SPLIT NYLONs =620198 FOOT620200-501 CRT SUB ASY620205 4-40 X .31 TX PN MC ST ZN620214-1 TUBING, SILICONE, 1/16 .50"620215-1 TUBING, SILICONE 1/8 X1.00"

622S0 Parts List


Appendix B

Part # Description

620215-2 TUBING, SILICONE 1/8 X 2.125"620215-3 TUBING, SILICONE 1/8 X 7.50"620215-4 TUBING, SILICONE 1/8 X.750"620216 FITTING Y” 1/8 X 1/8 X 1/8"620217 FITTING, T”620377-1 NELLCOR WORKS HERE” LABEL”620377-2 NELLCOR PATENT LABEL620378-1 ATLAS KEYPAD(BP START/CANCEL)620378-2 ATLAS KEYPAD(TREND/LEAD/PRINT)620378-3 ATLAS KEYPAD(SP02/CLOCK/POWER)620378-4 ATLAS KEYPAD(4 ALARMS)620378-5 ATLAS KEYPAD(SILENCE ALARM)620378-6 ATLAS KEYPAD(SILENCE BELL)620379-501 MONITOR BOX W/INSERTS620384-4C MID LABEL W/FREEZE (CHINESE)620384-4E DISPLAY LABEL-MID/FREEZE/ENG620384-4F MID LABEL W/FREEZE (FRENCH)620384-4G MID LABEL W/FREEZE (GERMAN)620384-4I LOW LABEL W/FREEZE (ITALIAN )620384-4J LOW LABEL W/FREEZE (JAPANESE)620384-4P LOW LABEL W/FREEZE (PORT)620384-4S LOW LABEL W/FREEZE (SPANISH)620385 SUB-LABEL DISPLAY620386 FASTON TAB620387 SHUNT620388-2 LABEL, NELLCOR SENSOR620393 PWR SUPPLY INSULATOR LABEL620394-1 WASHER, SHOULDER PLATED620395-501 REPLACEMENT BATTERY SUB ASSY620403 FLAT TIE HOLDER761077-1 WIRE TIE

622S0 Parts List(continued)


Appendix B

Part # Description

620004-502 ATLAS CPU PCB ASSY620007-501 FRONT PANEL DISPLAY PCB ASSY.620013-502 PRINTER PCB620016-501 MAIN PCB ASSY-MID/HIGH END620105-3 BATTERY DOOR620117 PRINTER DOOR BUTTON620119 LATCH SPO2620125-501 MAIN CASE/HANDLE SET620126-5 BEZEL SET/MID PRINTED620131-1 MAIN FOAM620132-2 TOP FOAM620133 BP FOAM620134-501 GEAR ASSY620138-501 PRINTER DOOR ASSY620139-501 PRINTER FRAME ASSE620140-501 MAIN PRINTER ASSY620142-1 METAL HOUSING-BOTTOM (LG)620143 NUT TEMPERATURE620144 BRACKET SPO2620150-1 AC/DC POWER SUPPLY620156 PUMP620157 STEPPER VALVE620158 CHECK VALVE620163 CABLE ASSY -PUMP/PNEUMATIC VLV620165 CABLE-CONN TO MAIN BD,ECG620167 CABLE-MAIN BD TO DISPLAY BD620168-2 CABLE ASSY POWER SUPPLY620171 CABLE ASSY SPEAKER620172-2 CABLE ASSY AC620173 CABLE-TEMP SENSOR TO MAIN BD620175 CABLE ASSY - FAN620176 CABLE ASSY - PRINTER620177 CABLE ASSY - PRINT HEAD620181-2 LABEL,BOTTOM,MID END620182 LABEL - RS232620187-501 PNEUMATIC SUB ASSY620189 4-20 X 5/16 SLT/TORX PN PL ZIN620192-1 PNEUMATIC CONNECTOR620193 NUT, HEX 5/16-32 X.095 PNEUM620194 WASHER,FLT.33 X.62 X.049 PNEUM620197 BUSHING, SPLIT NYLON620198 FOOT620200-501 CRT SUB ASY620205 4-40 X .31 TX PN MC ST ZN

622SP Parts List


Appendix B

Part # Description

620207 NUT, M3-.5 HEX KEPS ST ZN620214-1 TUBING, SILICONE, 1/16 .50"620215-1 TUBING, SILICONE 1/8 X1.00"620215-2 TUBING, SILICONE 1/8 X 2.125"620215-3 TUBING, SILICONE 1/8 X 7.50"620215-4 TUBING, SILICONE 1/8 X.750"620216 FITTING Y” 1/8 X 1/8 X 1/8"620217 FITTING, T” 1/8 X 1/16X 1/8"620373-501 NONIN SUB ASSEMBLY620378-1 ATLAS KEYPAD(BP START/CANCEL)620378-2 ATLAS KEYPAD(TREND/LEAD/PRINT)620378-3 ATLAS KEYPAD(SP02/CLOCK/POWER)620378-4 ATLAS KEYPAD(4 ALARMS)620378-5 ATLAS KEYPAD(SILENCE ALARM)620378-6 ATLAS KEYPAD(SILENCE BELL)620379-501 MONITOR BOX W/INSERTS620384-3C MID LABEL W/PRINTER(CHINESE)620384-3E DISPLAY LABEL-MID/PRINTER/ENG620384-3F MID LABEL W/PRINTER (FRENCH)620384-3G MID LABEL W/PRINTER (GERMAN)620384-3I MID LABEL W/PRINTER (ITALIAN )620384-3J MID LABEL W/PRINTER (JAPANESE)620384-3P MID LABEL W/PRINTER (PORT)620384-3S LOW LABEL W/PRINTER (SPANISH)620385 SUB-LABEL DISPLAY620386 FASTON TAB620388-1 LABEL, NONIN SENSOR620393 PWR SUPPLY INSULATOR LABEL620394-1 WASHER, SHOULDER PLATED620395-501 REPLACEMENT BATTERY SUB ASSY620403 FLAT TIE HOLDER761077-1 WIRE TIE



Appendix B

Part # Description

620004-502 ATLAS CPU PCB ASSY620007-501 FRONT PANEL DISPLAY PCB ASSY.620013-502 PRINTER PCB620016-501 MAIN PCB ASSY-MID/HIGH END620032-1 ETCO2 PCB ASSY620034 ETCO2 CONNECTOR & CABLE620035 NELLCOR SPO2 BD620038 NELLCOR LABEL (CARTON)620105-3 BATTERY DOOR620117 PRINTER DOOR BUTTON620119 LATCH SPO2620125-501 MAIN CASE/HANDLE SET620126-6 BEZEL SET/HIGH HEAT TRANSFER620131-1 MAIN FOAM620132-2 TOP FOAM620133 BP FOAM620134-501 GEAR ASSY620138-501 PRINTER DOOR ASSY620139-501 PRINTER FRAME ASSE620140-501 MAIN PRINTER ASSY620142-1 METAL HOUSING-BOTTOM (LG)620143 NUT TEMPERATURE620144 BRACKET SPO2620148 GASKET CO2 EXHAUST620149 FITTING,1/16 X 1/8-27 NPT620150-1 AC/DC POWER SUPPLY620156 PUMP620157 STEPPER VALVE620158 CHECK VALVE620163 CABLE ASSY -PUMP/PNEUMATIC VLV620165 CABLE-CONN TO MAIN BD,ECG620167 CABLE-MAIN BD TO DISPLAY BD620168-2 CABLE ASSY POWER SUPPLY620169-2 CABLE ASSY NELLCOR SENSOR620170 CABLE ASSY NELLCOR620171 CABLE ASSY SPEAKER620172-2 CABLE ASSY AC620173 CABLE-TEMP SENSOR TO MAIN BD620175 CABLE ASSY - FAN620176 CABLE ASSY - PRINTER620177 CABLE ASSY - PRINT HEAD620178 CABLE ASSY SP02620181-3 LABEL,BOTTOM,HIGH END

623NP Parts List


Appendix B

Part # Description

620182 LABEL - RS232620187-501 PNEUMATIC SUB ASSY620189 4-20 X 5/16 SLT/TORX PN PL ZIN620192-1 PNEUMATIC CONNECTOR620193 NUT, HEX 5/16-32 X.095 PNEUM620194 WASHER,FLT.33 X.62 X.049 PNEUM620197 BUSHING, SPLIT NYLON620198 FOOT620200-501 CRT SUB ASY620205 4-40 X .31 TX PN MC ST ZN620207 NUT, M3-.5 HEX KEPS ST ZN620214-1 TUBING, SILICONE, 1/16 .50"620215-1 TUBING, SILICONE 1/8 X1.00"620215-2 TUBING, SILICONE 1/8 X 2.125"620215-3 TUBING, SILICONE 1/8 X 7.50"620215-4 TUBING, SILICONE 1/8 X.750"620216 FITTING Y” 1/8 X 1/8 X 1/8"620217 FITTING, T” 1/8 X 1/16X 1/8"620377-1 NELLCOR WORKS HERE” LABEL”620377-2 NELLCOR PATENT LABEL620378-1 ATLAS KEYPAD(BP START/CANCEL)620378-2 ATLAS KEYPAD(TREND/LEAD/PRINT)620378-3 ATLAS KEYPAD(SP02/CLOCK/POWER)620378-4 ATLAS KEYPAD(4 ALARMS)620378-5 ATLAS KEYPAD(SILENCE ALARM)620378-6 ATLAS KEYPAD(SILENCE BELL)620379-501 MONITOR BOX W/INSERTS620384-5C HIGH LABEL (CHINESE)620384-5E DISPLAY LABEL-HIGH/PRINTER/ENG620384-5F HIGH LABEL (FRENCH)620384-5G HIGH LABEL (GERMAN)620384-5I HIGH LABEL (ITALIAN)620384-5J HIGH LABEL (JAPANESE)620384-5P HIGH LABEL (PORT)620384-5S HIGH LABEL (SPANISH)620385 SUB-LABEL DISPLAY620386 FASTON TAB620387 SHUNT620388-2 LABEL, NELLCOR SENSOR620393 PWR SUPPLY INSULATOR LABEL620394-1 WASHER, SHOULDER PLATED620395-501 REPLACEMENT BATTERY SUB ASSY620403 FLAT TIE HOLDER620411-1C PRYON CO2 CAUTION LABEL (ALL)

623NP Parts List(continued)


Appendix B

Part # Description

620411-1E PRYON CO2 CAUTION LABEL (ALL)620411-1F PRYON CO2 CAUTION LABEL (ALL)620411-1G PRYON CO2 CAUTION LABEL (ALL)620411-1I PRYON CO2 CAUTION LABEL (ALL)620411-1J PRYON CO2 CAUTION LABEL (ALL)620411-1P PRYON CO2 CAUTION LABEL (ALL)620411-1S PRYON CO2 CAUTION LABEL (ALL)620524 CABLE-CO2 TO MAIN BD761077-1 WIRE TIE

623NP Parts List (continued)


Appendix B

Part # Description

620004-502 ATLAS CPU PCB ASSY620007-501 FRONT PANEL DISPLAY PCB ASSY.620013-502 PRINTER PCB620016-501 MAIN PCB ASSY-MID/HIGH END620032-1 ETCO2 PCB ASSY620034 ETCO2 CONNECTOR & CABLE620105-3 BATTERY DOOR620117 PRINTER DOOR BUTTON620119 LATCH SPO2620125-501 MAIN CASE/HANDLE SET620126-6 BEZEL SET/HIGH HEAT TRANSFER620131-1 MAIN FOAM620132-2 TOP FOAM620133 BP FOAM620134-501 GEAR ASSY620138-501 PRINTER DOOR ASSY620139-501 PRINTER FRAME ASSE620140-501 MAIN PRINTER ASSY620142-1 METAL HOUSING-BOTTOM (LG)620143 NUT TEMPERATURE620144 BRACKET SPO2620148 GASKET CO2 EXHAUST620149 FITTING,1/16 X 1/8-27 NPT620150-1 AC/DC POWER SUPPLY620156 PUMP620157 STEPPER VALVE620158 CHECK VALVE620163 CABLE ASSY -PUMP/PNEUMATIC VLV620165 CABLE-CONN TO MAIN BD,ECG620167 CABLE-MAIN BD TO DISPLAY BD620168-2 CABLE ASSY POWER SUPPLY620171 CABLE ASSY SPEAKER620172-2 CABLE ASSY AC620173 CABLE-TEMP SENSOR TO MAIN BD620175 CABLE ASSY - FAN620176 CABLE ASSY - PRINTER620177 CABLE ASSY - PRINT HEAD620181-3 LABEL,BOTTOM,HIGH END620182 LABEL - RS232620187-501 PNEUMATIC SUB ASSY620189 4-20 X 5/16 SLT/TORX PN PL ZIN620192-1 PNEUMATIC CONNECTOR620193 NUT, HEX 5/16-32 X.095 PNEUM620194 WASHER,FLT.33 X.62 X.049 PNEUM

623SP Parts List


Appendix B

Part # Description

620197 BUSHING, SPLIT NYLON620198 FOOT620200-501 CRT SUB ASY620205 4-40 X .31 TX PN MC ST ZN620207 NUT, M3-.5 HEX KEPS ST ZN620214-1 TUBING, SILICONE, 1/16 .50"620215-1 TUBING, SILICONE 1/8 X1.00"620215-2 TUBING, SILICONE 1/8 X 2.125"620215-3 TUBING, SILICONE 1/8 X 7.50"620215-4 TUBING, SILICONE 1/8 X.750"620216 FITTING Y” 1/8 X 1/8 X 1/8"620217 FITTING, T” 1/8 X 1/16X 1/8"620373-501 NONIN SUB ASSEMBLY620378-1 ATLAS KEYPAD(BP START/CANCEL)620378-2 ATLAS KEYPAD(TREND/LEAD/PRINT)620378-3 ATLAS KEYPAD(SP02/CLOCK/POWER)620378-4 ATLAS KEYPAD(4 ALARMS)620378-5 ATLAS KEYPAD(SILENCE ALARM)620378-6 ATLAS KEYPAD(SILENCE BELL)620379-501 MONITOR BOX W/INSERTS620384-5C HIGH LABEL (CHINESE)620384-5E DISPLAY LABEL-HIGH/PRINTER/ENG620384-5F HIGH LABEL (FRENCH)620384-5G HIGH LABEL (GERMAN)620384-5I HIGH LABEL (ITALIAN)620384-5J HIGH LABEL (JAPANESE)620384-5P HIGH LABEL (PORT)620384-5S HIGH LABEL (SPANISH)620385 SUB-LABEL DISPLAY620386 FASTON TAB620388-1 LABEL, NONIN SENSOR620393 PWR SUPPLY INSULATOR LABEL620394-1 WASHER, SHOULDER PLATED620395-501 REPLACEMENT BATTERY SUB ASSY620403 FLAT TIE HOLDER620411-1C PRYON CO2 CAUTION LABEL (ALL)620411-1E PRYON CO2 CAUTION LABEL (ALL)620411-1F PRYON CO2 CAUTION LABEL (ALL)620411-1G PRYON CO2 CAUTION LABEL (ALL)620411-1I PRYON CO2 CAUTION LABEL (ALL)620411-1J PRYON CO2 CAUTION LABEL (ALL)620411-1P PRYON CO2 CAUTION LABEL (ALL)620411-1S PRYON CO2 CAUTION LABEL (ALL)620524 CABLE-CO2 TO MAIN BD761077-1 WIRE TIE


Atlas Drawings and Schematics

Drawing Number Rev. Sheet No. Size Name Description620002 D 1of 6 C Main Board - Model 200 Schematic620002 D 2 of 6 C NIBP Electronics Schematic620002 D 3 of 6 C Power Supply DC/DC Schematic620002 D 4 of 6 C Power Isolation and Sp02 Interface Schematic620002 D 5 of 6 C ECG AMP Schematic620002 D 6 of 6 C ECG A/D Interface Schematic620005 C 1 of 6 C Atlas CPU Sub System Connector/Header Detail Test Points620005 C 2 of 6 C FPGA U7 Detail620005 C 3 of 6 C I/O Filters Schematic620005 C 4 of 6 C Flash, SDRAM 8 HRESET Config Word Schematic620005 C 5 of 6 C Power PC MP C823 CPU Schematic620005 C 6 of 6 C Power Distribution Schematic620008 B 1 of 5 C Front Panel Display Board Schematic620008 B 2 of 5 C Keyboard Scanner Schematic620008 B 3 of 5 C Temp/Pulse LED Drivers Schematic620008 B 4 of 5 C NIBP LED Drivers Schematic620008 B 5 of 5 C Sp02 LED Drivers Schematic620011 D 1 of 1 C CRT Deflection Board Schematic620014 B 1 of 1 C Printer Electronics Schematic620017 E 1 of 8 C Main Board - Model 220 Schematic620017 E 2 of 8 C NIBP Electronics Schematic620017 E 3 of 8 C DC/DC Power Supply Schematic620017 E 4 of 8 C Power Isolation and Sp02 Interface Schematic620017 E 5 of 8 C ECG AMP Schematic620017 E 5 of 8 C ECG A/D Interface Schematic620017 E 7 of 8 C Respiration Schematic620017 E 8 of 8 C Serial Communication Schematic620020 B 1 of 1 C Transformer Isolator Component Schematic620027 B 1 of 1 C ECG Patient Cable Component Schematic620201 B 1 of 1 C Power Supply Sub Assembly Exploded View of Sub Assembly620032 C 1 of 1 B ETC02 PCB Assembly Isometric View of ETCO2 PCB620150 C 1 of 1 B Power Supply 50W Performance Specification

620154/1255210 B 1 of 1 B Assy, Nonin Sp02 Board with Shield Code for Rev Level of Firmware/Software620152 C 1 of 1 B Motor Stepper Motor Schematics and Values620156 B 1 of 1 B Pump, Pneumatic Valves620165 A 1 of 1 B Cable Assembly ECG Cable Pinout620166 C 1 of 1 B Cable Assembly CO2 Cable Pinout620169 C 1 of 1 B Cable Assembly Nellcor Sensor Cable Pinout620187 B 1 of 1 B Pneumatic Sub Assembly Exploded View of Pneumatic Sub620524 B 1 of 1 B Cable Assembly CO2 Cable Pinout

Page 1

A

A

B

B

C

C

D

D

E

E

4 4

3 3

2 2

1 1

AC/DC PowerConnector

Front PanelDisplayConnector

Main PCAConnector

BackupBattery

RecorderBoardConnector

CRT BoardConnector

3V Lithium

Speaker Drive

SerialDataOut

4Vpp max.

NIBP - Page 2

Serial I/Oconnector

Model 200 Serial I/O

(manufacturing test

only)

FanConnector

Page3

Page2

Page1

Rick Myers

Rick Myers

Mar 5, 1999

Mar 5, 1999

620002.dsn

5-39118 JAC 3/15/99 LPP

L.Phillips

Z. Psenicnik

J. Bello

3/16/99

3/16/99

3/17/99

B See ECN worksheetACminimumload

RecorderESD Ground

C Improvements for ESDand Fast Transients

5-39456 4/27/99LPP LPP

5-39822 LPP LPP6/23/99

DMods to U2 clock line,NVRAM pullup

Jumper wirefrom J4-20 toJ4-55

5-39934 LPP 7/9/99

620002 D

Main Board - Model 200

C

1 6Friday, July 09, 1999

Title

Size Document Number Rev

Date: Sheet of

Welch Allyn Inc.Schematic:

Release For Production

Approved

Checked

Designed

Drawn

Initial Date

REV Description ECN/ECO Init Date Ckd

A Release to Production

U7-wc

FE-Data

R17-1

Power-SyncSpare-3

NIBP-15mmHg

Spare-2

+3.3V

FE-Data

ETCO2-Tx

Video-Data

SCD

SPO2-Tx

NIBP-Safety

SCD

Video-Data

HRESET

NIBP-OP

Video-VSync

Video-HSyncVideo-VSync

Video-HSync

NIBP-PWM-ADC

NIBP-Valve-Close

NIBP-Offset-DAC

Vbackup

ETCO2-Rx

Batt-ID

Power-Sync

EKG-PWM-ADC

Q1-e

PIC-Clk

PIC-Data

NIBP2-PW-ADC

Q2-c

q4-d

Q2-b

Nurse-Call

LED-Latch-b

SPO2-Rx

U8-6

RS232-RX

SM

FE-Clock

U9-3

LED-Data-b

Audio-Shutdown

Rec-Data

NIBP-Data

RS232-Rx

U8-5

LED-Latch

LED-Latch

ADC-Clock

Rec-Strobe

Audio-Shutdown

Key-Data

Tx

Rec-Data-Latch

Rec-Supply-On

U9-4

Rec-Motor-Step

Rec-Clock

EKG-ADC-Clock

SP

Rec-Motor-Step

EKG-Data-Clock

RS232-Tx

Rx

U8-4

Rec-Strobe

Rec-Data

Key-Latch-n-bKey-Clock-b

SPO2-Rx

AC

ON

-LE

D

U8-2

U8-1

Rec-Clock

SPI-data-in

Rec-Data-Latch

U8-3

EROM-wr

LED-On

Speaker-Audio

SCL

Key-Latch-n

Key-Clock

SPI-Data-Out

LED-Data

SPI-Clock

Key-Latch-n

LED-On

Vbackup

Rec+12V

FE-PWM-ADC

FE-ADC-Clock

FE-Data-In

+12V

+12V

Print-Temp

Rec-GND

filt+12V

ACON

NIBP-15mmHgNIBP-Safety

NIBP-PWM-ADCNIBP-Offset-DAC

NIBP-ADC-Clock

NIBP-Overpressure

NIBP-A/D-SelA

SpO2OutNIBP-Valve-Close

NIBP-Pump-On

NIBP-A/D-SelBNIBP-A/D-SelC

FE-Pwr-Sync

PIC-Clk

ac-on

+12V

LithMeas

+3.3V

U2-ResetBackupBattery

AC+12V

Rec+12V

Rec-GND

HRESET

PIC-Data

PIC-Vprog

Rec-clock

Rec-Data

On/Off-Key

ac-on

+5V

Speaker-Audio

FE-Data-Clock

Rec-GND

+5V

+5V

+5V

+5V

+3.3V

A

D

D

D

D

D

D

D

D

D

D D

D

D

D

D

D

DD

D

D

DD

+12V

+5V

D

D

D

D

D

D

D

D

+3.3V

D

D

+5V

D

+5V

+5V

+5V

+5V

+5V+5V

+5V

+5V

+5V

+5V

D

+3.3V

D

J1

CON7

1234567

C3220pF

J9

Tab-.187

12

U1B74HCT04

3 4

147

U3B74HCT08

4

56

147

R2210K

C320.1uF

C370.1uF

U1C74HCT04

56

147

+ C7330uF

+ C4330uF

C33

0.1uF

+

-

U9TPA301

3

4

1 672

8

5

Q32N7002

3

1

2

TP8

TP7

R2110K

J4

Socket 30x2

13579

11131517192123252729313335373941434547495153555759

24681012141618202224262830323436384042444648505254565860

1357911131517192123252729313335373941434547495153555759

2468

1012141618202224262830323436384042444648505254565860

U3C74HCT08

9

108

147

R21.96K

TP18

R1919.6K

R410K

J8CON14AP

135791113

2468

101214

+++++++

+++++++

TP9

J7

CON24B

123456789101112

131415161718192021222324

U274HCT595

14

1110

1213

151234567

9

168

SER

SRCLKSRCLR

RCLKG

QAQBQCQDQEQFQGQH

QH

VC

CG

ND

TP10

C22.047uF

TP17

C39.047uF

J6

CON6

123456

C8.047uF

TP23

U3A74HCT08

1

23

147

+

C364.7uF

C1.047uF

Q2MMBT3904L

3

1

2

C14.047uF

U1A74HCT04

12

147

TP16

C20.047uF

U3D74HCT08

12

1311

147

R151.96K

J5

CON2

12

C23.047uF

BT1BR-2/3A

C29.047uF

R163.48K

TP15

TP19

TP1

TP14

TP13

TP2

J11

CON3

123

TP22

J10

RJ-45

12345678

TP12

TP3

TP20R310K

TP11

TP4

TP21

C340.1uF

R5 1.21K

R110K

U1F74HCT04

13 12

147

J3

CON2

12

C38220pF

R6 1.21K

U8SP232ACN

129

1110

134526

138147

1615

R1OUTR2OUTT1INT2IN

C+C1-C2+C2-V+V-

R1INR2IN

T1OUTT2OUT

VC

CG

ND

Q1MMBT3906L

3

1

2

J2

CON2

12

R2310K

U1D74HCT04

9 8

147

+

C3010uF

U1E74HCT04

11 10

147

C5 .047uF

U7AT24C02N-10SC-2.7

123

6

7

5

84

A0A1A2

SCL

WC

SDA

VC

CG

ND

TP25

R7150

Q4

2N7002

31

2

TP5

+

C354.7uF

R1719.6K

R18619

C310.1uF

C2.047uF

TP6

TP24

R20215

A

A

B

B

C

C

D

D

E

E

4 4

3 3

2 2

1 1

+6V Buck(5.68V nominal)

On/Off Switch

Page 1

Rick Myers

Rick Myers

Mar 5, 1999

Mar 5, 1999

620002.dsn

5-39118 JAC 3/15/99 LPP

L.Phillips

Z. Psenicnik

J. Bello

3/16/99

3/16/99

3/17/99

B See ECN worksheet


4/27/995-39456 LPP LPP

5-39822 LPP LPP6/23/99

Mods to U2 clock line,NVRAM pullupD 5-39934 LPP 7/9/99



620002 D

Power Supply - DC/DC

C


Title


Date: Sheet of



Approved

Checked

Designed

Drawn

Initial Date

U30

1-ou

t

Q30

3-b

U301-fb

Q303-c

C311-1

Q304-e

U301-osc

U301-5

U301-comp

Q305-g

u304-fb

up-reset

PIC-audio

Q305-s

d304-1

d304-2Q30

1-G

C328-1

On-Off

Q302-B

ACON

5Vref

+5V

+6V

+3.3V

filt+12V

+12V

Vb

VBackup

BackupBattery

PIC-Clk

Speaker-Audio

HRESET

U2-Reset

PIC-Vprog

Rec-Data

Rec-Clock

On/Off-Key

PIC-Data

AC+12V

D

D

D

D D

D

D

D

D

D

DD

TP312

U302LM2940CT-5.0

1 3

2

IN OUT

GN

D

R31310

U303LF33CV

1 3

2

IN OUT

GN

D

C305.01uF

R30910K

+ C31610uF

D304MMBD354LT1

1

3

2

+ C3234.7uF

D301BAV99L

1

3

2

Q3062N7002

3

1

2

C320.047uF

+ C3244.7uF

TP308

+ C306330uF

+ C314330uF

Q304MMBT3904L3

1

2

R3101.96K

TP301

TP315

C307.047uF

+ C319100uF

R319 19.6K

TP304

R302100K

C322.047uF

+ C3021uF

R316100

R30151.1K

R314100

Q302MMBT3904L

3

1

2

TP306

TP313

TP302

+ C304330uF

L30247uH

Q303MMBT3904L

3

1

2

C303.01uF

Q305MTP23P06V

2

1

34

TP309

TP317

C3112200pF

U301UC3843A

3

57

14

1

10

812

911

VFB

ISENSERT/CT

VREF

COMP

OUT

PW

R-G

ND

Vcc

GN

DV

c

TP316

R305100K

U304

LP2951CD-3.3

873

62

15

4

VINFDBKSHTDN

TAPSENS

VOUTERR

GN

D

TP305

R31810K

R3077.5K

R320 1.62K

R3121.96K

D303

MBRS340

R304127K

TP26

C321.047uF

U305

D620361-MX10000

2

5

7

4

3

6

1 14

8

9

10

11

12

13ClkIn/Osc1/RB5

TC5/TOCK1

RC3

Vpp/MCLR/RB3

Clkout/Osc2/RB4

RC4

Vdd

Vss

RC2

RC1

RC0

RB2

RB1

RB0

R31110K

R30310K

C325.047uF

TP303

TP320

+ C3151uF

R30610K

Q301

MTP23P06V

2

1

34

C313.047uF

TP321

TP27

TP310

C317.047uF

C3102200pF

TP318

L30147uH

R30827.4K

+C3011000uF

C326.047uF

TP319

TP307

D305NO LOAD

1

3

2

C327.047uF

+C3281uF

C309.047uF

A

A

B

B

C

C

D

D

E

E

4 4

3 3

2 2

1 1

A/D Mux


0mmHG = 0.5V 300mmHG = 4.0V

PWM D/A76.8KHz

PrimaryTransducer

NIBP PWMA/D Converter

ZeroOffset

SafetyTransducer


Rick Myers

Rick Myers

Mar 5, 1999

Mar 5, 1999

620002.dsn

5-39118 JAC 3/15/99 LPP

L.Phillips

Z. Psenicnik

J. Bello

3/16/99

3/16/99

3/17/99

B See ECN worksheet


LPP LPP5-39456 4/27/99

6/23/99LPP LPP5-39822

Mods to U2 clock line,NVRAM pullupD 7/9/99LPP5-39934

620002 D

NIBP Electronics

C


Title


Date: Sheet of



Approved

Checked

Designed

Drawn

Initial Date



D201-C

U208-2

U210-7

U204-7

U204-5

U203-3

U203-5

C207-1

U204-3

U204-2

U205-7

U206-6

U206-1

P202-Out-U206-7

U206-2

U202-3

P202-2

P202-5

Q202-G

Q202-D

U202-5

U208-1

u207-9

PrimaryPres

P4.25V

SafetyPres

U208-3

P201-Out

P201-6

U204-1

U208-7

U209-Out

U203-6

P202-Out+

U210-2

U210-3

U203-2

Pump+

D20

1-A

Q201-B

Valve-Valve+

Pump-

P.75V

+5V/2

U205-3

U207-3

P201-pwr

P+5V

NIBP-Offset-DAC

NIBP-Pump-On

NIBP-ADC-Clock

P+5V

P+5V

P+5V

P+.75V

NIBP-Safety

P+5V

P+5V

P+5V

NIBP-PWM-ADC

NIBP-Valve-Close

P+12V

5VRef

P+5V

NIBP-Overpressure

NIBP-15mmHg

NIBP-A/D-SelB

P+5V

+12V

+5V

P+.75V

+6V

NIBP-A/D-SelA

NIBP-A/D-SelC

LithMeas

P+5V

Print-Temp

P+12V

P+12V

P+12V

P+12V

P+12V

+5V

+5V

P+12V

P+12V

P+12V

P+12V

P+12V

P+12V

+12V

P+12V

A

A

A

A

A

A

A

A

A

A

A

A

A

A

A

A

A

A

A

A

A

A

A

A

A

A

A

A

A

A

A

A

A

A

A

A

A

A

A

A

A

A

A

A

A

A

A

A

A

A

A

A

A

+

- U203ALM393

3

21

84

C215.047uF

+

-

U202AMC34072

3

21

84

C225.047uF

C2241000pF

TP214

R2333.48K

+

-

U208AMC34072

3

21

84

TP206

R2213.16K

C213.01uF

Q202MMFT2N02EL

23

1

4

R23210K

+ C2024.7uF

R24210K

R23010K

C222.01uF

+

-

U205BMC34072

5

67

84

R23173.2K

TP217

Q201MMBT3904L

3

1

2

+

-

U206BMC34072

5

67

84

C223.01uF

TP225

D202BAV99L

1

3

2

R24010K

R2353.48K

R2291.96K

+

- U203BLM393

5

67

84

R24110K

R237464K

D201MMBD1503A

1

3

2

L201220uH

TP228

C220

.01uF

R243100K

+

-

U202BMC34072

5

67

84

Gain

and

Comp

XFPM-050KPGR-P1P201

1

2

3

6

TP207

U207B74HCT00

4

56

147

TP231

TP210

+

-U210MAX941

2

3

61 4

7

5

TP211

TP201

C201.047uF

+C22910uF

TP237

C212680pF

TP240

TP232

C221.047uF

TP204

TP234

C205

.047uF

R21410K

C228.047uF

C209.047uF

TP226

C232.047uF

R2191.96K

C211

.047uF

R24631.6

C226.047uF

C216.047uF

R215100K

U207A74HCT00

1

23

147

C204.047uF

TP221

C227680pF

TP222

+C2081uF

R21619.6K

+

-

U204BMC34072

5

67

84

U20178L05

8 1

2 3 6 7

IN OUT

GN

D

GN

D

GN

D

GN

D

R2391K

+

-

U204AMC34072

3

21

84

R201576

C203

.047uF

TP235

TP224

R2033.32K

R205750

C231.01uF

C210.047uF

TP212

TP208

R24438.3K

TP213

C206.022uF

R2481K

TP215

R2491K

TP220

L202Bead

+

-

U208BMC34072

5

67

84

R2275.11K

TP219

J201

CON5

12345

R2363.83K

R22321.5K

R2221K

U207C74HCT00

9

108

147

R228

1.96K

R2241K

C230.047uF

U207D74HCT00

12

1311

147

TP236

R2251K

+

-

U205AMC34072

3

21

84

TP202

R2111.96K

R22621.5K

R2081.96K

C217

.047uF

-+

FPNS-07PGRP2022

13

5

6

+C2184.7uF

C219.047uF

TP209

R204150

R21823.7K

R202174

+ C2071uF

R2175.62K

R21256.2K

R2343.48K

+

-

U206AMC34072

3

21

84

R213237K

Q203MMDF2N02E

81

2

5 67

3

4

R2091K

TP227

TP216

R207464K

TP229

R220806

R210464K

U2094051

131415121524

611109

3

168 7

X0X1X2X3X4X5X6X7

INHABC

XVD

DV

SS

VE

E

TP233

TP238

TP203

R2061K

TP230

TP218

C214.047uF

A

A

B

B

C

C

D

D

E

E

4 4

3 3

2 2

1 1

IsolationBarrier

Isolated SpO2Circuits

Grounded SpO2Circuits

Rick Myers

Rick Myers

Mar 5, 1999

Mar 5, 1999

620002.dsn

5-39118 JAC 3/15/99 LPP

L.Phillips

Z. Psenicnik

J. Bello

3/16/99

3/16/99

3/17/99

B See ECN worksheet

SpO2 ESDGround


LPP LPP4/27/995-39456

6/23/99LPP LPP5-39822

Mods to U2 clock line,NVRAM pullupD 7/9/99LPP5-39934

620002 D

Power Iso and SpO2 interface

C


Title


Date: Sheet of



Approved

Checked

Designed

Drawn

Initial Date



T401-8

U402-1

C409-1

T401-4

T401-1

Q40

1-g

U402-sen

iso401-a

Q40

2-e

Q401-s

U401-1U401-2

U401-7

sSpO2tx

Q403-e

sSpO2tx

U401-5

U402-e

U402-ref

U402-ctU402-rt

iso402-a

U403-7

C421-1

U401-3

C408-2

iso401-b

opto-fb

u411-6

FE-Pwr-Sync

SpO2Out

+5V

filt+12V

+12V

iso+5Vdig

fVcc

fVcc

f+5V

+5V

fVcc

fVee

iso+5Vdig

iso+5Vdig

fVcc

S

S

S

S

S

iso+5Vdig

S

S

S

S

S

S

S

S

EED

ED

ED

S

SS

S

S

S

C4231000pF

J403

Tab-.187

12

TP424

TP402

R405215

C404.047uF

C409470pf

TP408

R4146.19K

C4112200pF

TP419

TP406

C401.047uF

R4209.09K

TP421

TP413

Q401MTD3055V

23

1

4

J401

CON4

1234

+ C418

4.7uF

TP412

TP407

C416.047uF

+C4151uF

R415100

TP422

TP409

R419215

+

-U401BMC34072

5

67

84

C403.047uF

C421470pf

R41710K

+C406100uF

R412511

+C407100uF

R404

316K

TP401

+

-

U401AMC34072

3

21

84

D401

MBRS130T3

TP415

TP420

+C405100uF

TP404

D403

MBRS130T3

TP405

C402.047uF

C420.047uF

R4115.11K

R40710

TP416

U403LP2951C

873

62

15

4

VINFDBK

SHTDN

TAPSENS

VOUTERR

GN

D

D405BAV99L

1

3

2

R4031K

R40110K

R4095.11K

TP411

+ C41910uF

C417680pf

R408100

R4185.11K

C410.01uF

TP423

C413.047uF

R4060.2

C414.047uF

C422.047uF

TP403

R41010K

U4104N25

1 6

2

5

4

TP414

U402

LM3524DM

12

16

15

945

10

67

12111314

3

8

V-V+

VREF

VIN

COMP+SENSE-SENSE

SHTDWN

RTCT

CAEACBEB

OSCOUT

GN

D

+ C41210uF

Q402MMBT3906L

3

1

2

C408.01uf

T401

IsoXfmr

5

8

1

2

3

4

R40210K

Q403MMBT3904L

3

1

2

R41610K

R42110K

U411HCNW4503

2

3

8

6

5

TP417

A

A

B

B

C

C

D

D

E

E

4 4

3 3

2 2

1 1

0.1%

0.1%

0.1%

0.1%

0.1%

0.1%

0.1%

0.1%

0.1%

0.1%



WilsonNetwork

Lead Select

Diff AmpGain = 1

High Pass (0.05Hz or 0.5Hz)Low Pass (150Hz)

Gain StageGain = 74

RLD Amp

A/D InputsLeads Off

U501 U502 U503 U504 U505 U506 U507 U508

Shield0.1% 0.1%

Rick Myers

Rick Myers

Mar 5, 1999

Mar 5, 1999

620002.dsn

5-39118 JAC 3/15/99 LPP

L.Phillips

Z. Psenicnik

J. Bello

3/16/99

3/16/99

3/17/99

B See ECN worksheet


5-39456 LPP LPP4/27/99

5-39822 LPP6/23/99LPP

Mods to U2 clock line,NVRAM pullupD 5-39934 LPP 7/9/99

620002 D

ECG Amp

C


Title


Date: Sheet of



Approved

Checked

Designed

Drawn

Initial Date



U501-6

U502-3

U502-2

U502-5

U503-2

Right-Arm

aVRaVLaVF

LA

LA

LLLL

LALLV+

RA

RA

RA mux-

mux+diff+ U508-2

U508-3

Q504-d

diff-

ecg-hp

D503-3

-clamp

+clamp

D502-3 U501-5

U501-2

U503-5

R509-1

R511-1

R513-1

R515-1

Left-Arm

Left-Leg

V-Lead

Right-Leg

U501-3

Q504-s

Q504-g

U502-6

D504-3

V-

U508-5

U508-6

C514-2

diff-out

U50

8-1

u509-4

D501-3

D505-3

RL-mux

Q50

1-S

Mux-LdS-A

Sw-MonBw

Mux-LdS-B

Mux-LdS-C

RA

LA

LL

V+

VLdsOff

VLdsOff

VLdsOff

VLdsOff

VLdsOff

f+1.24V

fVcc

fVee

f+5V

vRL

Sw-RLD-LL

Sw-RLD-RL

An-ECG

Sw-RLD-RA

Sw-RLD-LA

Sw-RLD-V

fVcc

fVccfVee

fVcc

fVee

fVee

fVcc

EEE

E E E

E

E

E

E

E

E

E

E

EE

E

E

E

E

E E E E E

EEEEE

E

E

E

E

E

E

E

E

E

E

E

E

E

E

E

S

S

S

S

S

fVcc

fVee

fVee

fVeefVee

fVcc

fVee

fVee

fVee

fVcc

fVcc

fVee

fVcc

fVcc

fVcc

fVee

fVcc

fVcc

fVee

fVee

fVcc

E

fVcc

fVee

E

E

R50610K

C520.047uF

TP542

R55922Meg

R51710K

R50710K

R55530.1K

C530.047uF

C525.047uF

TP505

+

-

U507BMC34002

5

67

84

R556

10K

C526.047uF

C506220pF

+

-

U507AMC34002

3

21

84

TP539

C528.047uF

N501LAMP NEON

Q5042N7002

3

1

2

R54410K

R50151.1K

TP501

C532.047uF

D502MMBD1503A

1

3

2

C501220pF

C527.047uF

TP538

R54710K

C531.047uF

R50810K

C536.01uF

R549110K

TP540

TP524

C533.047uF

TP518

TP530

R5521K

TP509

R56022Meg

C529.047uF

R55173.2K

TP551

R50922Meg

TP502

D503MMBD1503A

1

3

2

N502LAMP NEON

TP517

R52610K

C507220pF

TP533

C517.01uF

TP521

R50251.1K

C5441000pF

C502220pF

Q5062N7002

3

1

2

+

-

U501AMC34002

3

21

84

R51010K

TP562

TP513TP511

R51910K

TP558

+

-

U502BMC34002

5

67

84

TP543

R5201.21K

+

-

U508BAD712

5

67

84

R51122Meg

R5481Meg

N503LAMP NEON C515

3.3uFC508220pF

TP560

TP514

R55722Meg

R55019.6K

TP549

TP550

D501MMBD1503A

1

3

2

R50351.1K

-

+U509LMC7101

4

31

25

C542220pF

TP515

TP503

D504MMBD1503A

1

3

2

C503220pF TP531

TP537

R51210K

TP527

+ C5354.7uF

TP512

Q5022N7002

3

1

2

+ C5344.7uF

C523.047uF

TP519

C519.047uF

R52110K

R54510K

TP510

R51322Meg

TP523

R52310K

TP536

J501CON6

123456

R553100K

TP504

R51410K

C504220pF

R565121K

U504

DG202CSE

31

1416

119

68

1345

2

15

10

7

S1IN1

S2IN2

S3IN3

S4IN4

V+V-GND

D1

D2

D3

D4

R5241.21K

TP508

R51522Meg

D506BAV99L

1

3

2

TP535

N504LAMP NEON

D507BAV99L

1

3

2

TP520

R5181.21K

+

-

U503AMC34002

3

21

84

R50451.1K

C543.047uF

R5221.21K

TP522

C509220pF

TP557

TP547

+

-

U501BMC34002

5

67

84

TP526

C510220pF

+

-

U503BMC34002

5

67

84

C511220pF

N505LAMP NEON

TP559

C512220pF

TP507

C513220pF

+

- U508AAD712

3

21

84

D505BAV99L

1

3

2

R516

10K

+

-

U502AMC34002

3

21

84

R50551.1K

R530 10K

C505220pF

R531 10K

C5451000pF

TP532

R55822Meg

R533 10K

R5271K

R535 10K

TP506

C5140.1uF

Q5012N7002

3

1

2

TP525

R536 10K

C516.047uF

R52851.1K

TP552

R537 10K

TP516

R52510K

TP548

C518.047uF

R532 10K

R529 10K

C522.047uF

C521.047uF

R534 10K

TP529

U5054051

131415121524

611109

3

168 7

X0X1X2X3X4X5X6X7

INHABC

X

VD

DV

SS

VE

E

C524.047uF

R54610K

TP528

U5064051

131415121524

611109

3

168 7

X0X1X2X3X4X5X6X7

INHABC

X

VD

DV

SS

VE

E

A

A

B

B

C

C

D

D

E

E

4 4

3 3

2 2

1 1

U601

PWM A/DConverter

U602

781uSec

-5V

(U604-10)

IntegratorInput

A/D Mux

U603

+5V

(U604-8)

Serial/ParallelControl Data

PWM-Out

ComparatorInputs

PWM-timer

U601

IsolationBarrier

U603

52uSec

Analog In

U602

U604

Rick Myers

Rick Myers

Mar 5, 1999

Mar 5, 1999

620002.dsn

5-39118 JAC 3/15/99 LPP

L.Phillips

Z. Psenicnik

J. Bello

3/16/99

3/16/99

3/17/99

B See ECN worksheet


4/27/995-39456 LPP LPP

LPP LPP5-39822 6/23/99

Mods to U2 clock line,NVRAM pullupD 7/9/995-39934 LPP

620002 D

ECG A/D and Interface

C


Title


Date: Sheet of



Approved

Checked

Designed

Drawn

Initial Date



U601-1

U60

3out

Mux-A/D-B

U60

2-7

U601-2

U604-4

U60

2-2

U60

2-5

iso601-a

Mux-A/D-C

Mux-A/D-A

U601-3

iso602-a

U60

4-8

U601-7

Q60

1-e

U604-6

D601-2

U604-10

Sw-DiagBw

U605-out

iso604-a

iso603-a

u604

-3

U602-3

SW-RL-V

U604-2 U613-6U60

4-1

U612-6

U611-6U60

4-5

U605-12

U610-6

Sw-RLD-RL

f+1.24V

An-ECG

LL

Mux-LdS-B

LA

Sw-RLD-RA

FE-PWM-ADC

Sw-RLD-LL

FE-ADC-Clock

Mux-LdS-A

RA

V+

Mux-LdS-C

Sw-RLD-LA

vRL

fVcc

iso+5Vdig

f+1.24VSw-MonBw

FE-Data-In

FE-Data-Clock

+5V

+5V

Sw-RLD-V

fVee

f+5V

f+1.24V

E

E

f+5V

f+5V

f+5V

ED

+5V

ED

E

E

fVee

E E

fVcc

ED

E

f+5V

fVcc

E

E

+5V

f+5V

E

E

E

ED

E

E

fVcc

iso+5Vdig

fVcc

E

ED

E

fVee

fVee

fVcc

fVcc

fVcc

iso+5Vdig

iso+5Vdig

ED

iso+5Vdig

iso+5Vdig

EDiso+5Vdig

ED

ED

ED

fVcc

fVee

E E

fVee

E E

E

fVee

ED

ED

f+5V

f+5V

ED

ED

TP615

TP622

TP608

U60674HCT595

14

1110

1213

151234567

9

168

SER

SRCLKSRCLR

RCLKG

QAQBQCQDQEQFQGQH

QH

VC

CG

ND

U604F74HCT04

13 12

147

TP601

C6371000pF

TP609

TP602 U604A74HCT04

12

147

R62346.4K

R60410K

C624.047uF

C636100pF

C634220pF

C6410.1uF

R60346.4K

R60110K

TP618

R60273.2K

R6053.48K

TP625

C632.047uF

R607464K

TP620

R6081K

C635220pF

U611HCNW4503

2

3

8

6

5TP610

U613HCNW4503

2

3

8

6

5

+

-U602LM311

2

37

5 64 1

8

Q601MMBT3904L

3

1

2

TP604

U612HCNW4503

2

3

8

6

5

C629.047uF

R6116.19K

TP611

R610511

R6136.19K

U60574HCT595

14

1110

1213

151234567

9

168

SER

SRCLKSRCLR

RCLKG

QAQBQCQDQEQFQGQH

QH

VC

CG

ND

U604C74HCT04

56

147

+

-U607BLM393

5

67

84

TP617

C603680pF

R621215

R6275.11K

U604D74HCT04

9 8

147

TP613

R6156.19K

TP603

+ C6314.7uF

R62246.4K

TP629

TP612

U604E74HCT04

11 10

147

+ C6094.7uF

U610HCNW4503

2

3

8

6

5

TP606

R62810K

C625.047uF

TP619

C601

1000pF

R62610K

+

-

U601AMC34072

3

21

84

C626.047uF

TP616

TP626

C627.047uF

TP614

R62510K

R6172.15K

+

-U607ALM393

3

21

84

C6420.1uF

TP605

C6280.1uF

D601MMBD1503A

1

3

2

TP627

C633100pF

C623.047uF

TP623

C6210.1uF

TP630

+ C6144.7uF

TP628

C622.047uF

+

-

U601BMC34072

5

67

84

U604B74HCT04

34

147

TP624

R624

5.11K

R619619

TP621

TP607

U6034051

131415121524

611109

3

168 7

X0X1X2X3X4X5X6X7

INHABC

XVD

DV

SS

VE

E

R6063.48K

R620619

A

A

B

B

C

C

D

D

E

E

4 4

3 3

2 2

1 1

AMD N/C: 9, 10, 13, 14

AMD RY/BY#: 15

----------------

MICRON N/C: 9, 10, 15

MICRON Vpp: 13

Boot Configuration Latch

Active during power-on

Boot Configuration Pull-Up: 0 1 0 0 1 0 0 1 1 1 1 0 0 0 0 0

(see page 4-10)

0: internal arbitration

1: MSR(ip) = 0, interrupt prefix is 0x0000

0: reserved

0: memory controller is active after reset

1,0: 16-bit boot device

0: reserved

1,1: IMMR base is 0xfff0-0000

1,1: DBGC mode

0,0: DBPC mode

0,0: External bus division factor

Jim Belesiu

Jim Belesiu

Mar 5, 1999

Mar 5, 1999

620005.dsn

JAC5-39173 3/18/99

L. Phillips

Z. Psenicnik

J. Bello

3/19/99

3/19/99

3/19/99

LPP

B ZIP4/15/99JJC5-39353Component change forfrequency modulationChange Reset IC U3,No Load C40

C 6/24/99LPP5-39830



620005 C

Flash, SDRAM and HRESET Config Word

C

4 6Thursday, June 24, 1999

Title


Date: Sheet of



Approved

Checked

Designed

Drawn

Initial Date

A20

A22

A26

D13

dx7

GPL1

A24

A17

A13

D6

D4

dx9

A28

A10 A9

D14

D15

dx1

dx8

dx11

GPL0

A21

A22

D6

D3

D1

A28

A12

D2

D0

D10

A27

CS_n1

D11

D10

D1

D11

dx10

D9

D9

D9

D4

D8

D8

A30

D8

D4

D10

A21

A19

A15

D2

dx12

A25

A25

A23

A14

A11

A24

D13

CS_n0

GPL3GPL2

A16

D7

D0

D14

GPL1

A23

D15A29

A27

A29

D7

D5

D3

BS_AB1

A18

A30

D1

D7

dx4

D5

D12

BS_AB0

A26

D12

CLKOUT

BS_AB[0:3]

D[0:31]

GPL[0:7]

CS_n[0:7]

SRESET_n

HRESET_n

A[6:31]

VDDH

VDDH

VDDH

VDDH

VDDH

VDDH

VDDH

U6

FLASH-512Kx16

29313335384042443032343639414345

252423222120191887654321

4817

13 37

47

9

14

4627

2826

1112

1015

16

D0D1D2D3D4D5D6D7D8D9

D10D11D12D13D14D15

A0A1A2A3A4A5A6A7A8A9A10A11A12A13A14A15A16A17

NC

3

Vcc

Byte#

NC1

NC4

Gnd

-a

Gnd

-b

OE#CE#

WE#RESET#

NC2RY/BY#

A18

TP54

1

TP55

1

TP53

1

U5SDRAM-1Mx16

23568911123940424345464849

2122232427282930313220

3813

14

33

36

2647

37

19

18171516

4 10 41

3435

50

1 25447

DQ0DQ1DQ2DQ3DQ4DQ5DQ6DQ7DQ8DQ9

DQ10DQ11DQ12DQ13DQ14DQ15

A0A1A2A3A4A5A6A7A8A9A10

Vcc

Q3

Vcc

Q2

DQML

NC1

DQMH

Vss

1

Vss

Q4

NC2

BA

CS#RAS#WE#CAS#

Vss

Q1

Vss

Q2

Vss

Q3

CKECLK

Vss

2

Vcc

1V

cc2

Vcc

Q4

Vcc

Q1

R57

100K

12

T1U474AHC244

246811131517

119

181614129753

2010

1A11A21A31A42A12A22A32A4

1G2G

1Y11Y21Y31Y42Y12Y22Y32Y4

VC

CG

ND

T2

A

A

B

B

C

C

D

D

E

E

4 4

3 3

2 2

1 1

Audio DAC Resistors

Jim Belesiu

Jim Belesiu

Mar 5, 1999

Mar 5, 1999

620005.dsn

3/18/99JAC5-39173

3/19/99

3/19/99

3/19/99

L. Phillips

Z. Psenicnik

J. Bello

LPP

B ZIP4/15/99JJC5-39353Component change forfrequency modulationChange Reset IC U3,No Load C40

C 6/24/99LPP5-39830



620005 C

FPGA

C


Title


Date: Sheet of



Approved

Checked

Designed

Drawn

Initial Date

A26A27A28A29

GPL1

CS_n2

VIDEO1

D6

VIDEO6

D5

VIDEO5VIDEO4

VIDEO2

D4

VIDEO3

VIDEO7

D7

D3

VIDEO0

D2D1D0

S2

S4

S7

S6

S5

S0

S3

S1

S2

S7

S4

S1

S3

S0

S6S5

IRQ_n1IRQ_n2

SPIMOSI

SPICLKCONFIG_DONE

A25

NSTATUS

SDACK2_n

DREQ2_n

SDACK1_n

DREQ1_n

A[6:31] GPL[0:7] CS_n[0:7]

VIDEO[0:7]

D[0:31]

VSYNCHSYNC

Speaker-Audio

IRQ_n[0:7]

Blank

SPIMOSISPISEL_nVideo-Data-x

VSYNC-xHSYNC-x

NIBP-Data-x

Recorder-Strobe-x

Recorder-Data-Latch-xRecorder-Clock-x

Recorder-Data-x

PC6

Recorder-Motor-Step-x

NIBP-Overpressure-xNIBP-15mmHg-x

TIN1

FE-Data-x

TIN2

ADC-Clock-x

FE-Clock-x76.8KHz

TIN3NIBP-Fault-x

SPI-data-in-xSPI-clock-xSPI-data-out-xLED-Latch-xKey-Latch-x

NIBP-Offset-DAC-x

PA14

PC10

PB16

PA7PA6

PC11

PC12

Video-Clock-3

PA5

SPIMISO

RD/WR_n

Video-Clock-25

FieldSPICLK

CLKOUT

PA15

VDDH

R69 12.4K

R1251.58K

R68 24.9K

R70 6.19K

R71 3.09K

R73 787

TP80

1

C121

330pF12

U7

EPF6016A

5

12

4 8972

13

15

2021

1617

14

18

2425262728

50

876

29303132

3722 71

37

19

525556

36 54 53

68

41403534

70

33

39 88

51

10

86

69

12

38

23

89

11

49

42434445464748

1009998979695949392

90

84

82

8079

767574

676665

636261605958

57

91

64

85

83

81

7778

73

GN

D-5

GCLK-12

nCE

DC

LK

CO

NF

IG_D

ON

E

GCLK-13

P15

GN

D-2

0

VC

C-2

1

P16P17

P14

TMS-18

P24P25P26P27P28

P50

GN

D-8

7

VC

C-6

P29P30P31P32

GN

D-3

7

MS

EL

VC

C-7

1

P3P7

P19

P52P55P56

nCO

NF

IG

VC

C-5

4

GN

D-5

3

P68

P41P40P35P34

GN

D-7

0

P33

nST

AT

US

VC

C-8

8TDO-51

TDI-10

DA

TA

CLKUSR-69

P1P2

VC

C-3

8

TCK-23

P8P9

P11

nCEO-49

P42P43P44P45P46P47P48

P100P99P98P97P96P95P94P93P92

P90

P84

P82

P80P79

P76P75P74

RDYnBSY-67P66P65

GCLK-63GCLK-62

P61P60P59P58

P57

DEV_CLRn-91

INIT_DONE-64

DEV_OE-85

nRS-83

nWS-81

nCS-77Cs-78

P73

R72 1.58KR126

33

R66 100K

R67 49.9K

A

A

B

B

C

C

D

D

E

E

4 4

3 3

2 2

1 1

CPU PCA SW Debug Port(aka BDM Connector)

Test Points

1 - Visual History Buffer Flush Status (’823 output)

2 - Reset Output (’823 input)

3 - Ground

4 - BDM Clock (’823 input)

5 - Ground

6 - Visual History Buffer Flush Status (’823 output)

7 - Reset Input (’823 Output)

8 - BDM Data Input (’823 Input)

9 - Vcc

10 - BDM Data Output (’823 Output)

Main PCA Connectors

Jim Belesiu

Jim Belesiu

Mar 5, 1999

Mar 5, 1999

620005.dsn

5-39173 JAC 3/18/99 LPP

L. Phillips

Z. Psenicnik

J. Bello

3/19/99

3/19/99

3/19/99

BComponent change forfrequency modulation 5-39353 JJC 4/15/99 ZIP

Change Reset IC U3,No Load C40

C 5-39830 LPP 6/24/99



620005 C

Atlas CPU SubsystemC


Title


Date: Sheet of



Approved

Checked

Designed

Drawn

Initial Date

GND

GND

GND

GND

GND

GND

GND

GND

GND

GND

GND

GND

DSDO

ADC-Clock

SPI-data-in

TA_n

NIBP-15mmHg

PC6

CLKOUT

SpO2-Tx

Main-Supply-On

FE-Data

DSDI

SCD

Video-Horizontal-SyncSPI-clock

NIBP-PWM-ADC

SpO2-Rx

Spare-1

On-Standby-Key

Video-Clock-3

EKG-PWM-ADC

RS423-CTS

SPI-data-out

PA4

ETCO2-Rx

NIBP2-PW-ADC

VbackupNIBP-Valve

Spare-3

RD/WR_n

PA14

SPIMISO

Nurse-CallKey-Latch

Main-Power-Sync

Spare-2

NIBP-Overpressure

SCL

Batt-ID

ETCO2-Tx

PB16

PC10

VFLS1

+3.3V_unfiltered

Recorder-Data

PC13

HRESET_n

Video-Vertical-Sync

Recorder-Data-Latch

Burst_n

TS_n

AC-On

RS423-Tx

Recorder-Strobe

PA7

SRESET_nVFLS0

HRESET

Rec-Paper-Out

NIBP-Data

PC12

PA6

SPISEL_n

LED-Latch

NIBP-Offset-DAC

Video-Data

SPIMOSI

DSCK

+3.3V_unfiltered

Speaker-Audio

Recorder-Motor-Step

FE-Clock

PA5

PA15

NIBP-Fault

RS423-Rx

Recorder-Clock

SPICLK

VDDH

TP75 1

TP77 1

TP601 TP61 1

TP78 1

TP621

TP59 1

TP641

TP63 1

TP701

TP65 1

TP69 1

TP661

TP761

TP581

TP681

TP71 1

JP8

HEADER 30x2

13579

11131517192123252729313335373941434547495153555759

24681012141618202224262830323436384042444648505254565860

1357911131517192123252729313335373941434547495153555759

2468

1012141618202224262830323436384042444648505254565860

TP721

TP67 1

TP73 1

TP741

JP5

HEADER 5X2

1 23 45 67 89 10

A

A

B

B

C

C

D

D

E

E

4 4

3 3

2 2

1 1

MODCK (0,0) Selects 32KHz as main oscillator

RSTCONF = 0 allows ’823 to sample data bus

during HRESET

PWM Input Timer Signals

Jim Belesiu

Jim Belesiu

Mar 5, 1999

Mar 5, 1999

620005.dsn

5-39173 JAC 3/18/99 LPP

3/19/99

3/19/99

3/19/99

L. Phillips

Z. Psenicnik

J. Bello

Bfrequency modulationComponent change for 5-39353 JJC 4/15/99 ZIP


C 5-39830 LPP 6/24/99

620005 C

I/O Filters

C


Title


Date: Sheet of



Approved

Checked

Designed

Drawn

Initial Date



IRQ_n0IRQ_n1IRQ_n2IRQ_n3

IRQ_n4IRQ_n5IRQ_n6IRQ_n7

IP_B6IP_B7

IP_B3IP_B2

IP_B4IP_B5

GPL4GPL5

IRQ_n0

SPI-data-out-xSPI-data-out

Video-Vertical-SyncVideo-Horizontal-Sync HSYNC-x

VSYNC-x

DSDI

SCLSCD

Recorder-Clock-xRecorder-Strobe-x

Recorder-Data-Latch-x

Recorder-Data-x

Recorder-Clock

Recorder-Data

Recorder-Data-Latch

Recorder-Strobe

VFLS1

VFLS0

WAIT_B_n

IP_B[2:7]

I2CSCLSCLSMRXD2SMTXD2SpO2-Tx

SpO2-Rx

ETCO2-TxETCO2-Rx SMRXD1

SMTXD1RXD2TXD2

RS423-RxRS423-Tx

Nurse-CallPC9

Key-Latch-xKey-Latch

SCD I2CSDA

NIBP-Offset-DACRec-Paper-Out

RS423-Rx

SpO2-Rx

FE-ClockFE-Data

ADC-ClockFE-Data-xFE-Clock-x

ADC-Clock-x

SPI-clock-xSPI-clock

LED-Latch-xSPI-data-in SPI-data-in-x

Video-Data-xVideo-Data

SPI-data-in

NIBP-Data-xNIBP-DataBatt-ID

NIBP-Fault-xNIBP-Fault

NIBP-15mmHg

NIBP-Overpressure

ETCO2-Rx

AC-On

PA6NIBP-Valve

NIBP-Offset-DAC-x

PB18

LED-Latch

PC5

PC7

Spare-1Spare-2

Batt-ID

EKG-PWM-ADC

MODCK1

MODCK2

PB17

PC8

PB19

Rec-Paper-Out

RS423-CTS

AC-On

TIN3NIBP2-PW-ADCSpare-3

Burst_nBG_nTS_nSPKROUT

NIBP-Fault

FRZ

PC11

DREQ1_n

GPL[0:7]

NIBP2-PW-ADC RS423-CTS

TMS

PB16

PC13

SRESET_n

PA4

PA7

PA15

PA5

On-Standby-KeyDREQ2_n

Spare-1

Spare-3

PC10

NIBP-PWM-ADC

PC12

76.8KHzTEXP

On-Standby-Key

Main-Power-SyncMain-Supply-On

EKG-PWM-ADC TIN1

TIN2NIBP-PWM-ADC

NIBP-15mmHg-x

Recorder-Motor-Step Recorder-Motor-Step-x

NIBP-Overpressure-xNIBP-OverpressureNIBP-15mmHg

PC4

TEA_n

TA_n

BB_n

BR_n

TRST_n

ALE_B

RSTCONF_n

BI_n

DSCK

IRQ_n[0:7]

VDDH

VDDH

VDDH

VDDH

VDDH

VDDH

VDDH

VDDH

VDDH

VDDH

VDDH

VDDH

VDDH

VDDH

C70330pF

12

C

R86

10K

51234

6789

10

R151215

C124330pF

12

C72330pF

12

C71330pF

12

C123330pF

12

C78330pF

12

R1521.58K

R108

1.58K

C79330pF

12

C125330pF

12

C81330pF

12

R105

1.58K

C80330pF

12

C89330pF

12

R104

NL

C86330pF

12

C87330pF

12

R107

NL

C88330pF

12

R133NL

C90330pF

12

R1293.09K

C93330pF

12

C91330pF

12

R88

100

1234 5

678

C92330pF

12

C94330pF

12

C97330pF

12

R1313.09K

C95330pF

12

C96330pF

12

R82

100

1234 5

678

R1321.58K

C105330pF

12

C12222pF

12

C103330pF

12

C

R83

10K

51234

6789

10

C102330pF

12

C

R76

10K

51234

6789

10

C104330pF

12

R87

100

1234 5

678

C

R103

10K

51234

6789

10

R85

100

1234 5

678

C66330pF

12

C

R16

10K

51234

6789

10

C67330pF

12

C

R91 10K

51234

6789

10

C68330pF

12

R77

100

1234 5

678

C69330pF

12

R1276.19K

R80

100

1234 5

678

C76330pF

12

R74

100

1234 5

678

C77330pF

12

C75330pF

12

C74330pF

12

C

R49

10K

51234

6789

10

R1303.09K

R90

100

1234 5

678

R1286.19K

R78

100

1234 5

678

R81

100

1234 5

678

C57330pF

12

C56330pF

12

C55330pF

12

C54330pF

12

C63330pF

12

C64330pF

12

R1341.58K

R120

NL

R116

100

1234 5

678

C65330pF

12

C62330pF

12

C126330pF

12

C73330pF

12

A

A

B

B

C

C

D

D

E

E

4 4

3 3

2 2

1 1

Attach GND and

VSSSYN at a

single point.

Place VSSSYN

on a split

plane beneath

the MPC823 PLL

section

Jim Belesiu

Jim Belesiu

Mar 5, 1999

Mar 5, 1999

620005.dsn

3/18/99JAC5-39173 LPP

L. Phillips

Z. Psenicnik

J. Bello

3/19/99

3/19/99

3/19/99

Bfrequency modulationComponent change for 5-39353 JJC 4/15/99 ZIP


C 5-39830 LPP 6/24/99

620005 C

PowerPC MPC823 CPU

C


Title


Date: Sheet of



Approved

Checked

Designed

Drawn

Initial Date



BG

_nB

B_n

IRQ

_n2T

EA

_n

A27

D[0:31]

BS_AB[0:3]

IP_B

2

IRQ

_n7

D18

D4

D0

A22

A14

A[6:31]

IRQ_n[0:7]

IP_B

4

TA

_n

D30

D22

D21

D7

D6

D1

A30

A18

IP_B

5B

R_n

D31

D23

D20

D15

D11

D9

D8

A24

A21

A20

A19

A17

A8

IP_B

6

BS

_AB

0

IRQ

_n4

SP

KR

OU

T

D29

A12

A11 IR

Q_n

1

IRQ

_n5

CS

_n7

D13

GP

L5

GP

L3

IRQ

_n6

CS

_n6

CS

_n5

A25

IP_B

3

BS

_AB

2

TS

IZ1

CS

_n4

D26

D24

D16

A6

GPL[0:7]

GP

L6

GP

L4

D28

D5

D3

D2

A26

GP

L7

TS

IZ0

CS

_n0

A31

A28

A23

A9

GP

L2

BI_

n

D27

D25

D10

A16

A15

A10

CS_n[0:7]

IP_B

7

FR

Z

IRQ

_n3

CS

_n1

D12

A7

TSIZ[0:1]

BS

_AB

3

IRQ

_n0

CS

_n3

D14

A29

IP_B[2:7]

GP

L1G

PL0

BS

_AB

1

CS

_n2

D19

TS

_n

D17

A13

VID

EO

0V

IDE

O1

VID

EO

2V

IDE

O3

VID

EO

4V

IDE

O5

VID

EO

6V

IDE

O7

GN

D

VS

SS

YN

VIDEO[0:7]

A[6:31]

TSIZ[0:1]

TEXP

PORESET_n

EXTCLK

Field

HSYNC

SPISEL_n

SPIMOSISPICLK

Video-Clock-3XTAL

MODCK2XFC

MODCK1EXTAL

HRESET_n

VSYNC

SRESET_n

CLKOUT

Blank

SPIMISO

RD/WR_n

I2CSCLI2CSDA

CS_n[0:7]

IRQ_n[0:7]

BS_AB[0:3]

SMRXD2

PA7SMTXD2

PA6

PA4PA5

PA15PA14

TXD2RXD2

PB19

PB16

PB18PB17

SDACK2_nSDACK1_n

SMTXD1SMRXD1

DREQ1_n

PC13DREQ2_n

PC12

PC10PC11

PC7

PC5

PC8PC9

PC6

DSDOTMS

TRST_nVFLS0

VFLS1

DSCK

RSTCONF_n

DSDI

D[0:31]

GPL[0:7]

WAIT_B_nALE_B

IP_B[2:7]

Burst_n

TS_nTA_nTEA_nBI_nBR_nBG_nBB_n

SPKROUTFRZ

PC4

VDDH

VDDL

KAPWR VDDSYN

MPC823�WKH�PRQVWHU�

U1

MPC823ZC

M13

N15

N16

M15

L13

M16

M14

L14

L15

L16

K14

K13

G13

K15

J15

J14

G14

H15

H13

H14

F14

K16

G16

H16

G15

F16

M1

L1 J2 J1 L2 H1

F1

E1

M2

K2

K3

K1

M4

M3

J3 J4 H2

K4

H3

G2

G3

F2

H4

L4 F3

G4

E4

L3 F4

E2

D2

E3

D12

A14

B14

A15

B16

D13

C14

B15

E5E6E7E8E9

E10E11E12

F5F12G5

G12H5

H12

J5J12K5

K12L5

L12M5M6M7M8M9

M10

A7G1J16T7

F6

F7

F8

F9

F10

F11

G6

G7

G8

G9

G10

G11

H6

H7

H8

H9

H10

H11

J6 J7 J8 J9 J10

J11

K6

K7

K8

K9

K10

K11

B1

A3

A1

A2

M11M12

L6 L7 L8 L9 L10

L11

B3

C5

B5

B4

A4

A5

B2

D1

A6

D5

T1

P4

T2

N5

R3

P5

T3

R4

R2

R1

P2

P3

N4

F15

E15

C13

B10

A13

D10

A12

C11

B12

D9

B7

C3

D4

D3

C2

A10

N3

N2

N1

B11

A11

C10

D16

E16

D15

F13

E13

C16

C15

D14

D11

B13

C12

T12

R12

R11

N12

P11

C4

B8

A8

C8

D7

A9

B9

C9

C7

D8

D6

B6

P16R15R14R13N10T9T8P8T6R6

N14P15P14T15T14P12N11T11T10R9R7P7N7R5

R16T16P13T13R10P9R8N8T5N6P6T4

A16C1C6

E14J13

N9

N13

P1

P10

A6

A7

A8

A9

A10

A11

A12

A13

A14

A15

A16

A17

A18

A19

A20

A21

A22

A23

A24

A25

A26

A27

A28

A29

A30

A31 D0

D1

D2

D3

D4

D5

D6

D7

D8

D9

D10

D11

D12

D13

D14

D15

D16

D17

D18

D19

D20

D21

D22

D23

D24

D25

D26

D27

D28

D29

D30

D31

CS

0_n

CS

1_n

CS

2_n

CS

3_n

CS

4_n

CS

5_n

CS

6_n

/ C

E1_

B_n

CS

7_n

/ C

E2_

B_n

VDDH1VDDH2VDDH3VDDH4VDDH5VDDH6VDDH7VDDH8VDDH9VDDH10VDDH11VDDH12VDDH13VDDH14

VDDH17VDDH18VDDH19VDDH20VDDH21VDDH22VDDH23VDDH24VDDH25VDDH26VDDH27VDDH28

VDDL1VDDL2VDDL3VDDL4

GN

D1

GN

D2

GN

D3

GN

D4

GN

D5

GN

D6

GN

D7

GN

D8

GN

D9

GN

D10

GN

D11

GN

D12

GN

D13

GN

D14

GN

D15

GN

D16

GN

D17

GN

D18

GN

D25

GN

D26

GN

D27

GN

D28

GN

D29

GN

D30

GN

D31

GN

D32

GN

D33

GN

D34

GN

D35

GN

D36

VD

DS

YN

KA

PW

R

VS

SS

YN

VS

SS

YN

1

VDDH29VDDH30

GN

D37

GN

D38

GN

D39

GN

D40

GN

D41

GN

D42

PO

RE

SE

T_n

RS

TC

ON

F_n

HR

ES

ET

_nS

RE

SE

T_n

XT

AL

EX

TA

LX

FC

CLK

OU

TE

XT

CLK

TE

XP

VD

0 /

LD1

/ P

D8

VD

1 /

LD2

/ P

D9

VD

2 /

LD3

/ P

D10

VD

3 /

LD4

/ P

D11

VD

4 /

LD5

/ P

D12

VD

5 /

LD6

/ P

D13

VD

6 /

LD7

/ P

D14

VD

7 /

LD8

/ P

D15

FIE

LD /

LD

0 /

PD

7B

LAN

K /

LO

E /

LC

D_A

C /

PD

6V

SY

NC

/ F

RA

ME

/ P

D5

HS

YN

C /

LO

AD

/ P

D4

CLK

-SH

IFT

/ P

D3

TS

IZ0

/ R

EG

_nT

SIZ

1R

D /

WR

_nB

urst

_nB

DIP

_n /

GP

L_B

5_n

TS

_nT

A_n

TE

A_n

BI_

n

RS

V_n

/ I

RQ

2_n

KR

_n /

IR

Q4_

n /

RE

TR

Y /

SP

KR

OU

TD

P0

/ IR

Q3_

n

DP

1 /

IRQ

4_n

DP

2 /

IRQ

5_n

DP

3 /

IRQ

6_n

FR

Z /

IR

Q6_

nIR

Q7_

n

IRQ

1_n

IRQ

0_n

BR

_n

BB

_nB

G_n

WE

0_n

/ B

S_A

B0_

n /

IOR

D_n

WE

1_n

/ B

S_A

B1_

n /

IOW

R_n

WE

2_n

/ B

S_A

B2_

n /

PC

OE

_nW

E3_

n /

BS

_AB

3_n

/ P

CW

E_n

GP

L_A

0_n

/ G

PL_

B0_

nG

PL_

A1_

n /

GP

L_B

1_n

/ O

E_n

GP

L_A

2_n

/ G

PL_

B2_

n /

CS

2_n

GP

L_A

3_n

/ G

PL_

B3_

n /

CS

3_n

UP

WA

ITA

/ G

PL_

A4_

n /

AS

_nU

PW

AIT

B /

GP

L_B

4_n

GP

L_A

5_n

TC

K /

DS

CK

TM

ST

DI

/ D

SD

IT

DO

/ D

SD

OT

RS

T_n

WA

IT_B

_nA

LE_B

/ D

SC

K /

AT

1IP

_B0

/ IW

P0

/ V

FLS

0IP

_B1

/ IW

P1

/ V

FLS

1IP

_B2

/ IO

IS16

_B_n

/ A

T2

IP_B

3 /

IWP

2 /

VF

2IP

_B4

/ LW

P0

/ V

F0

IP_B

5 /

LWP

1 /

VF

1IP

_B6

/ D

SD

I /

AT

0IP

_B7

/ P

TR

_n /

AT

3

OP

2 /

MO

DC

K1

/ S

TS

_nO

P3

/ M

OD

CK

2 /

DS

DO

PA15 / USBRXDPA14 / USBOE_n

PA13 / RXD2PA12 / TXD2

PA9 / L1TXDA / SMRXD2PA8 / L1RXDA / SMTXD2

PA7 / CLK1 / TIN1 / L1RCLKA / BRGO1PA6 / CLK2 / TOUT1_n / TIN3

PA5 / CLK3 / TIN2 / L1TCLKA / BRGO2PA4 / CLK4 / TOUT2_n / TIN4

PB31 / SPISEL_n / LCD_APB30 / SPICLK

PB29 / SPIMOSIPB28 / SPIMISO

PB27 / I2CSDA / BRGO1PB26 / I2CSCL / BRGO2

PB25 / SMTXD1PB24 / SMRXD1

PB23 / SMSYN1_n / SDACK1_nPB22 / SMSYN2_n / SDACK2_n

PB19 / L1ST1 / LCD_BPB18 / RTS2_n / L1ST2PB17 / L1ST3 / LCD_CPB16 / L1RQA / L1ST4

PC15 / DREQ1_n / L1ST5PC14 / DREQ2_n / RTS2_n / L1ST6

PC13 / L1ST7PC12 / L1RQA / L1ST8

PC11 / USBRXPPC10 / TGATE1_n / USBRXN

PC9 / CTS2_nPC8 / CD2_n / TGATE1_n

PC7 / USBTXPPC6 / USBTXN

PC5 / L1TSYNCA / SDACK1_nPC4 / L1RSYNCA

NC1NC2NC3

NC4NC5

NC

6N

C7

NC

8N

C9

A

A

B

B

C

C

D

D

E

E

4 4

3 3

2 2

1 1

Supply RF/EMIFilters and ResetCircuits

FPGA decoupling caps

MPC823 decoupling caps

System Clock

1536*830 < XFC < 1536*1470 pf Value selected for the final mulitplication ratio

RF Suppression

to CPU

System

Place decoupling capacitors next to CPU VDDSYN pin B1 and VSSSYN pin A1 and A2

Split ground plane under these components

’244

decoupling cap

DRAM decoupling caps

Place these components

as close to the

processor as possible

Use separate PPL VDDSYN power plane from 3.3V plain

to CPU PLL pins A1

and A2

FPGA Clock

FLASH decoupling caps

to CPU PLL

pin B1

to CPU 32KHz

Clock

PLL Filter

Capacitor

MPC823 PLLSupply

RF Suppression

Oscillator

decoupling

cap

Jim Belesiu

Jim Belesiu

Mar 5, 1999

Mar 5, 1999

620005.dsn

5-39173 JAC 3/18/99 LPP

L. Phillips

Z. Psenicnik

J. Bello

3/19/99

3/19/99

3/19/99

FM Section for spreading RF

emissions. R2 selects the

deviation.

Load C107 w/1.5uF and unload C1 for non-FM clocking

From FPGA

B ZIP4/15/99JJC5-39353frequency modulationComponent change for


C 6/24/995-39830 LPP

620005 C

Power Distribution, Clocks and Reset

C


Title


Date: Sheet of



Approved

Checked

Designed

Drawn

Initial Date



xtalp

VCLK

VSSSYN

Q1-Base

PORESET-Input

XFCX

+3.3V_unfiltered

HRESET

HRESET_n

Video-Clock-25

Vbackup

EXTAL

PORESET_n

EXTCLK

XFC

+3.3V_unfiltered

XTAL

PA14

VDDH

VDDSYN

VDDH

VDDL

VDDH

VDDH

KAPWR

VDDH

VDDH

VDDH

VDDH

VDDH

C1116.8uF

12

C1106.8uF

12

C28100nF

12C130

NL

12

C29100nF

12

C10822pF

12

C43100nF

12

Y1

32768Hz

1 2

C44100nF

12

C115330pF

12

R118NL

R513.9M

R119NL

R50 200K

C41100nF

12

C42100nF

12

C39

100nF

12

L1Ferrite-120

1 2C106100nF

12

R123

100K

C166.8uF 1

2

L3Ferrite-120

1 2

R122

12.4K

C18

6.8uF

12

U32.0V

12

3

Reset_nInput

Gnd

Q1NL

3

1

2

R94

NL

R121

NL

C376.8uF

12

C116330pF 1

2

C1206.8uF

12

C38

6.8uF

12

R52

33

C114

330pF

12

C13

100nF

12

C15100nF

12

C6100nF

12

C146.8uF

12

C118

330pF

12

C7100nF

12

C10922pF

12

R21K

R117

200K

C17100nF

12

C119

330pF

12

C11.5uF

12

R124

1.58K

C36100nF

12

C128100nF

12

C40100nF

12

R1100

C4100nF

12

C5100nF

12

C2100nF

12

C12

6.8uF

12

C21100nF

12

C22100nF

12

C107NL

12

L2 Ferrite-120

1 2

C19100nF

12

U23.0V

12

3

Reset_nInput

Gnd

G1

SG-636PCE-25.175M

1

2 3

4OE

GND OUT

VDD

C20100nF

12

C30100nF

12

C1136.8uF

12

C31100nF

12

C117330pF

12

C1126.8uF

12

C32100nF

12

A

A

B

B

C

C

D

D

E

E

4 4

3 3

2 2

1 1

On/Standby

Place capacitorsby connector

AC On LEDs

Trend

Lead Select

Print

Break-Away PCB SectionFlag Pole Area

Place one tantalumcap near each sevensegment LED group

Place oneceramic capnear eachIC

Silence ButtonBreak-Away PCBSection

Silence

Switch

7

1

9

Pull-up Resistor Network Detail

5

6

4

8

10

2 3

Silence LED

Jim Belesiu

Jim Belesiu

3/15/99

3/15/99

3/23/99 LPPJAC5-39251

L. Phillips

Z. Psenicnik

J. Bello

3/24/99

3/24/99

3/24/99

B No Load D16

D13 to Low Profile, R51 to 316C

5-39485 4/28/99LPP LPP

7/23/99LPP5-39994

620008 C

Front Panel Display Board

C


Title


Date: Sheet of



Approved

Checked

Designed

Drawn

Initial Date



NIBP LED Circuits

Front Panel - C

LED_NIBP_Clock

LED_NIBP_Latch

LED_NIBP_Data_In

LED_NIBP_Data_Out

Silence-LEDLED_NIBP_Enable

I705124

Front Panel - D

LED_SpO2_Clock

LED_SpO2_Latch

LED_SpO2_Data_In

LED_SpO2_Enable

Keyboard Circuits

Front Panel - A

Key-Clock-b

Key-Latch-b

Key-Data-b

On/Off-sw

Silence-Switch

Trend

Lead-Select

Print

I705144

Front Panel - B

LED_TP_Data_In

LED_TP_Clock

LED_TP_LatchLED_TP_Data_Out

LED_TP_Enable

On/Off-sw

Clock1

PrintLead-SelectTrend

ACON-LED

u13-out

u19-out

Print-sw

Lead-Select-sw

FP-Common

ACLED-2

ACLED-1

AC-On-x

Sil-Sw-a

D10-C

D10-Vcc

Silence-Switch

On-Led

Silence-LED

Sil-Sw-b

Key-Clock

LED-Data

LED-Latch-2

u26-18Key-Latch-b

LED-Latch-n

Key-data-b

Key-DataLED-Data-b

Clock3

u26-9u26-7LED-Latch-1

Key-Latch-n

Clock2

LED_SPO2_enable

LED_TP_enable

LED-Enable

LED_NIBP_enable

Trend-sw

VCC

VCCVCC

VCC VCC VCC VCC VCC

VCC VCC VCC VCC VCC

VCC

VCC VCC VCC

VCC

VCC

VCC VCC

VCC

VCC VCC

VCC

VCC VCCVCC VCC VCC

VCC

TP2

C18

0.1uF

J2A

flex-cable-5

12345

TP3

J2xA

flex-cable-5

12345

TP4

C4

0.1uF

+ C1

4.7uF

U1F

74HC04

13 12

C21

0.1uF

+ C8

4.7uF

C24

0.1uF

+ C10

4.7uF

C20

0.1uF

+ C11

4.7uF

C23

0.1uF

+ C28

4.7uF

C25

0.1uF

C2

0.1uF

R12.2K

23418 5 6 7

C3

0.1uF

C26

0.1uF

C5

0.1uF

R71100

C6

0.1uF

U26

74HC244

2468

11131517

119

181614129753

1A11A21A31A42A12A22A32A4

1G2G

1Y11Y21Y31Y42Y12Y22Y32Y4

C7

0.1uF

R72100

C16

0.1uF

J1

HEADER 7X2

1 23 45 67 89 1011 1213 14

R73100

C12

0.1uF

+ C27

4.7uF

TP182

C13

0.1uF

+ C9

4.7uF

TP183

C14

0.1uF

TP184

C15

0.1uF

D15x5 Green

1 2

U1A

74HC04

1 2

C19

0.1uF

D25x5 Green

1 2

U1B

74HC04

3 4

C22

0.1uF

SW13

12

U1C

74HC04

5 6

D10

T1 (3mm) Red

12

SW9

12

U1D

74HC04

9 8

SW221 2

SW11

12

U1E

74HC04

11 10

SW28

1 2

R67 1.21K

1 2

J3A

flex-cable-5

12345

R51316

R66 1.21K

1 2

J3xA

flex-cable-5

12345

D13T1 (3mm) Green

12

R65 1.21K1 2

R22.15K

C17

0.1uF

R68 1.21K

1 2

A

A

B

B

C

C

D

D

E

E

4 4

3 3

2 2

1 1

ETCO2 Alarm On-Off

HR Alarm On-Off

LH Select

LH Adjust (+)

LH Adjust (-)

SpO2 Alarm On-Off

RH Select

RH Adjust (+)

RH Adjust (-)

NIBP Alarm On-Off

BP Auto

BP Start-Stop

QRS Volume (+)

QRS Volume (-)

Alarm Volume (+)

Alarm Volume (-)

Time

1

5

4

69

10

Pull-up Resistor Network Detail2 3

78

On / Standby

Jim Belesiu

3/15/99Jim Belesiu

3/15/99

Jim Belesiu

3/15/99Jim Belesiu

3/15/99 620008.dsn

3/23/99

3/23/99

3/23/99

3/23/99

L. Phillips

Z. Psenicnik

J. Bello

5-39251 JAC LPP

B No Load D16


4/28/99LPP LPP5-39485

5-39994 LPP 7/23/99

62008C

Friday, July 23, 1999

Title


Date: Sheet of



Approved

Checked

Designed

Drawn

Initial Date



620008 C

Keyboard Scanner

C


Title


Date: Sheet of



Approved

Checked

Designed

Drawn

Initial Date

u2-9

Clock1

HRalarm-swLHselect-swLHAdjust+swLHAdjust-sw

QRSvol+sw

Alarmvol+swAlarmvol-swTime-sw

etco2-sw

Trend

Lead-Select

Print

NIBPalarm-sw

RHselect-sw

BPauto-sw

RHadjust+swRHadjust-sw

SpO2alarm-sw

BPstart/stop-sw

U3-4

QRSvol-sw

u2-10

VCC

VCC

VCC

TP80

SW19

1 2

TP81

SW20

1 2

TP82

SW211 2

TP86

C

R610K

512346789

10

TP85

C

R510K

543219876

10

TP84

SW251 2

TP77

SW26

1 2

TP83

SW23

1 2

TP87

SW24

1 2

TP88

C

R710K

512346789

10

U2

74HC165

10111213143456

2151

9

7

SERABCDEFGH

CLKINHSH/LD

QH

QH

TP178

SW27

1 2

U4

74HC165

10111213143456

2151

9

7

SERABCDEFGH

CLKINHSH/LD

QH

QH

D48

BAV99L

1

3

2

SW14

1 2

SW4

1 2

TP68

SW61 2

TP69

SW81 2

TP70

SW10

1 2

TP71

SW12

1 2

TP66

SW11 2

TP72SW21 2

TP73

SW3

1 2

TP74

SW5

1 2

U3

74HC165

10111213143456

2151

9

7

SERABCDEFGH

CLKINHSH/LD

QH

QHSW7

1 2

TP75

SW15

1 2

TP76

SW161 2

TP67

SW17

1 2

TP79

SW18

1 2

Key-Clock-b

Key-Latch-b

Key-Data-b

Silence-Switch

Trend

Lead-Select

Print

On/Off-sw

A

A

B

B

C

C

D

D

E

E

4 4

3 3

2 2

1 1

SpO2 Pulse Rate Hundreds SpO2 Pulse Rate Tens

Temperature TensTemperature Ones Temperature Tenths

Temperature Hundreds

SpO2 Pulse Rate Ones

Degree FDegree C

Jim Belesiu

3/15/99Jim Belesiu

3/15/99 620008.dsn

LPP3/23/99JAC5-39251

L. Phillips

Z. Psenicnik

J. Bello

3/24/99

3/24/99

3/24/99

B No Load D16


5-39485 LPP LPP4/28/99

7/23/99LPP5-39994

620008 C

Temp/Pulse LED Drivers

C


Title


Date: Sheet of



Approved

Checked

Designed

Drawn

Initial Date



d36-dd36-c

u16-15

u16-6

u19-15

u19-3

u19-6u19-7

d39-dd39-c

u18-5

d38-dd38-c

d35-c

u15-6

u15-15

d35-d

d39-b

d35-g

d39-a

d38-g

d36-ed34-d

u19-out

d38-a

d35-f

d33-b

d34-e

d39-f

d36-bd35-b

d34-f

d34-ad34-b

d34-g

d38-b

d39-e

d34-c

d39-g

d35-a

d36-g

u15-9

d38-f

d36-a

d38-e

u18-9

d36-f

u14-9

u17-9

d35-e

u17-15

u17-4u17-5

d37-dd37-c

d37-e

d37-a

d37-g

d37-b

d37-f

u16-9

LED-Latch-1

u14-4

u14-6

u14-2

u14-15

u14-5

u14-3

u14-1u15-1

u15-5u15-4

d33-c

u16-3

u16-4

u16-2

u16-5

u16-1

u15-7

u17-1u17-2

u18-15

u18-3

u18-1u18-2

u18-6

u18-4

u19-1u19-2

u19-5u19-4

LED-Data-b

u17-3

u15-2u15-3

u17-6

d35-dp

d46-cu16-7d47-c

u14-7

u18-7

LED-TP-Enable

Clock2

VCC VCC

VCC

VCCVCC

VCC

VCC

VCC

VCC

VCCVCC

VCC

VCC

VCCVCC

R32150

23418

567

A

B

CD

E

FG

D38

7-SEG LED 0.36

45

1

8

7

910

2

6

3

"E""D"

Anode-1

"C"

Dp

"B""A"

"F"

Anode-2

"G"

R27150

23418

567

A

B

CD

E

F

G

D33

7-SEG LED 0.36

45

1

8

7

910

2

6

3

"E""D"

Anode-1

"C"

Dp

"B""A"

"F"

Anode-2

"G"

TP50

A

B

CD

E

FG

D39

7-SEG LED 0.36

45

1

8

7

910

2

6

3

"E""D"

Anode-1

"C"

Dp

"B""A"

"F"

Anode-2

"G"

TP35

A

B

CD

E

FG

D37

7-SEG LED 0.36

45

1

8

7

910

2

6

3

"E""D"

Anode-1

"C"

Dp

"B""A"

"F"

Anode-2

"G"

D46

T1.75 (5mm) Green

12

R35150

12345

678

R52215

U14

74HC595A

14

1110

1213

151234567

9

SER

SRCLKSRCLR

RCLKG

QAQBQCQDQEQFQGQH

QH

R53215

TP14

D47

T1.75 (5mm) Green

12

TP10

TP21

TP12

TP22

TP30

R28150

23418

567

TP52

TP25

R31150

12345

678

TP33

A

B

C

D

E

FG

D34

7-SEG LED 0.36

45

1

8

7

910

2

6

3

"E""D"

Anode-1

"C"

Dp

"B""A"

"F"

Anode-2

"G"

TP34

U16

74HC595A

14

1110

1213

151234567

9

SER

SRCLKSRCLR

RCLKG

QAQBQCQDQEQFQGQH

QH

TP38R34150

23418

567

TP37

R37150

12345

678

TP40

U19

74HC595A

14

1110

1213

151234567

9

SER

SRCLKSRCLR

RCLKG

QAQBQCQDQEQFQGQH

QH

TP61

U18

74HC595A

14

1110

1213

151234567

9

SER

SRCLKSRCLR

RCLKG

QAQBQCQDQEQFQGQH

QH

TP62

R36150

12345

678

TP63

R33150

23418

567

TP64

R30150

12345

678

TP42

U15

74HC595A

14

1110

1213

151234567

9

SER

SRCLKSRCLR

RCLKG

QAQBQCQDQEQFQGQH

QH

TP59

R26150

12345

678

TP60

R29150

12345

678

TP5

A

B

C

D

E

FG

D36

7-SEG LED 0.36

45

1

8

7

910

2

6

3

"E""D"

Anode-1

"C"

Dp

"B""A"

"F"

Anode-2

"G"

U17

74HC595A

14

1110

1213

151234567

9

SER

SRCLKSRCLR

RCLKG

QAQBQCQDQEQFQGQH

QH

A

B

C

D

E

FG

D35

7-SEG LED 0.36

45

1

8

7

910

2

6

3

"E""D"

Anode-1

"C"

Dp

"B""A"

"F"

Anode-2

"G"LED_TP_Data_In

LED_TP_Data_Out

LED_TP_Clock

LED_TP_Latch

LED_TP_Enable

A

A

B

B

C

C

D

D

E

E

4 4

3 3

2 2

1 1

Diastolic Hundreds Diastolic Tens Diastolic Ones

BP Dia Hi BP Dia Lo

Systolic Ones

BP Sys Hi BP Sys LoNIBP Alarm On/Off

Systolic TensSystolic Hundreds

Q30Q60 QxQ1Q5 Q3Q10Q15

Jim Belesiu

3/15/99Jim Belesiu

3/15/99 620008.dsn

5.-39251 JAC 3/23/99 LPP

L. Phillips

Z. Psenicnik

J. Bello

3/24/99

3/24/99

3/24/99

B No Load D16


4/28/99LPP LPP5-39485

5-39994 LPP 7/23/99

620008 C

NIBP LED Drivers

C


Title


Date: Sheet of



Approved

Checked

Designed

Drawn

Initial Date



d44-ad44-bd44-c

d45-a

d45-cd45-b

d44-g

u20-4

d41-gd42-f

d41-a

d41-d

d42-g

u20-5

d44-e

d42-d

d41-bd42-a

d45-gd44-f

d42-c

u20-1

d41-e

d45-dd44-d

u20-6

u20-2

d45-f

d41-fu19-out

d42-b

d45-e

u20-15

u20-3

u20-out

u23-out

u22-out

u25-out

u21-out

d40-f

d40-bd40-c

d40-g

d40-a

d41-c

d42-e

d43-dd43-e

d43-gd43-fu23-1

u23-3

u24-15

u24-2u24-3u24-4u24-5u24-6

u25-2

u25-5d43-cd43-bd43-a

u23-4

u20-7 d15-c

Clock3

u23-2

u23-15

u23-5

u23-7

u21-7

d6-c

u21-3u21-2

u21-15

u21-5u21-4

u21-6u22-7

u22-1

u22-3u22-2

U22-15

u22-4

u22-6u22-5

d8-c

u25-7

d14-c

u25-1

u25-4u25-3

u25-15

u24-out

d11-c

u24-7

u24-1

u21-1

u23-6 u25-6

d30-ad31-a

u13-4

u13-7

u13-15

u13-3

u13-1

u13-6u13-5

u13-2

d24-a

d28-a

d22-a

d29-a

d25-ad26-a

u13-out

d40-ed40-d

LED-NIBP-Enable

LED-Latch-2

VCC

VCC VCC

VCC VCC VCC

VCCVCC VCC

VCCVCCVCC

VCC

VCC

TP93

D6

T1.75 (5mm) Green

12

D28

T1.

75 (

5mm

) G

reen

12

TP103

D8

T1.75 (5mm) Green

12

D26

T1.

75 (

5mm

) G

reen

12

R56215

D11

T1.75 (5mm) Green

12

D22

T1.

75 (

5mm

) G

reen

12

TP110

D14

T1.75 (5mm) Green

12

D24

T1.

75 (

5mm

) G

reen

12

TP111

R42680

12345

678

TP142

R57215

A

B

C

D

E

FG

D41

7-SEG LED 0.5

12

3

4

5

67

9

8

10

"E""D"

Anode-1

"C"

Dp

"B""A"

"F"

Anode-2

"G"

TP179

TP137

R40680

23418

567

TP141

TP118

A

B

C

D

E

FG

D42

7-SEG LED 0.5

12

3

4

5

67

9

8

10

"E""D"

Anode-1

"C"

Dp

"B""A"

"F"

Anode-2

"G"

R58215

R44680

23418

567

U24

74HC595A

14

1110

1213

151234567

9

SER

SRCLKSRCLR

RCLKG

QAQBQCQDQEQFQGQH

QH

TP116

U23

74HC595A

14

1110

1213

151234567

9

SER

SRCLKSRCLR

RCLKG

QAQBQCQDQEQFQGQH

QH

U25

74HC595A

14

1110

1213

151234567

9

SER

SRCLKSRCLR

RCLKG

QAQBQCQDQEQFQGQH

QHTP128

A

B

CD

E

FG

D43

7-SEG LED 0.5

12

3

4

5

67

9

8

10

"E""D"

Anode-1

"C"

Dp

"B""A"

"F"

Anode-2

"G"

R48680

12345

678

TP136

R47680

12345

678

R49680

12345

678

TP140

TP105

A

B

CD

E

FG

D44

7-SEG LED 0.5

12

3

4

5

67

9

8

10

"E""D"

Anode-1

"C"

Dp

"B""A"

"F"

Anode-2

"G"

TP126

TP89

A

B

CD

E

FG

D45

7-SEG LED 0.5

12

3

4

5

67

9

8

10

"E""D"

Anode-1

"C"

Dp

"B""A"

"F"

Anode-2

"G"

TP130

R542.15K

U21

74HC595A

14

1110

1213

151234567

9

SER

SRCLKSRCLR

RCLKG

QAQBQCQDQEQFQGQH

QH

TP180

TP112

U22

74HC595A

14

1110

1213

151234567

9

SER

SRCLKSRCLR

RCLKG

QAQBQCQDQEQFQGQH

QH

TP181

TP138

R38680

23418

567

U13

74HC595A

14

1110

1213

151234567

9

SER

SRCLKSRCLR

RCLKG

QAQBQCQDQEQFQGQH

QH

TP114

U20

74HC595A

14

1110

1213

151234567

9

SER

SRCLKSRCLR

RCLKG

QAQBQCQDQEQFQGQH

QH

D31

T1.

75 (

5mm

) G

reen

12

TP139

R43680

12345

678

R25150

12345

678

TP132

R41680

12345

678

R24150

12345

678

R591.21K

R39680

23418

567

TP1

R55215

R46

680

23418

567

TP8

TP91

D15

T1 (3mm) Red

12

D29

T1.

75 (

5mm

) G

reen

12

TP101

R45680

23418

567

D30

T1.

75 (

5mm

) G

reen

12

TP113

A

B

C

D

E

FG

D40

7-SEG LED 0.5

12

3

4

5

67

9

8

10

"E""D"

Anode-1

"C"

Dp

"B""A"

"F"

Anode-2

"G"

D25

T1.

75 (

5mm

) G

reen

12

LED_NIBP_Clock

LED_NIBP_Latch

LED_NIBP_Data_In

Silence-LED

LED_NIBP_Data_Out

LED_NIBP_Enable

A

A

B

B

C

C

D

D

E

E

4 4

3 3

2 2

1 1

Jim Belesiu

3/15/99Jim Belesiu

3/15/99 620008.dsn

HR Alarm

On/Off

SpO2 % Hundreds

ETCO2 Alarm

On/Off

SpO2 % Ones

SpO2 Bargraph

SpO2 % Tens

SpO2 Alarm

On/Off

SpO2 Lo

SpO2 Hi

3/23/99

3/24/99

3/24/99

3/24/99

L. Phillips

Z. Psenicnik

J. Bello

5-39251 JAC LPP

B No Load D16


5-39485 LPP LPP4/28/99

7/23/99LPP5-39994

620008 C

SPO2 LED Drivers

C


Title


Date: Sheet of



Approved

Checked

Designed

Drawn

Initial Date



u5-1

d9-c

u7-2

u12-4

d5-e

u12-7

d4-f

u12-out

d4-c

u7-out

d4-g

d27-15

u7-7

u6-5

u5-out

u13-out

u5-4

d12-c

u7-1

u6-3

u6-15

d5-c

d27-18

d27-11

d16-c

u7-6

u12-1

u5-2d5-d

d27-19

u7-5

d4-e

d27-20

u6-7

d5-g

d27-14

u5-15

d7-c

u7-15

d3-b

u6-2

Clock1

d5-b

d27-17

d27-12

u5-5u7-4

d4-ad4-b

u12-6

u12-2

u7-3

d5-f

d27-13

u5-3d3-c

LED-Latch-2

d4-d

d5-a

d27-16

d18-c

u6-6

u6-1

u6-4

u12-15

u6-out

LED-SPO2-Enable

u5-6

u12-5

u12-3

VCC

VCC

VCC

VCC

VCC VCC

VCC

VCC

VCC

VCCVCC

R21680

12345

678

D7T1 (3mm) Red

12

A

B

C

D

E

FG

D3

7-SEG LED 0.5

12

3

4

5

67

9

8

10

"E""D"

Anode-1

"C"

Dp

"B""A"

"F"

Anode-2

"G"

TP153

D9T1 (3mm) Red

12

TP151

R10680

43218

675

D12T1 (3mm) Red

12

U7

74HC595A

14

1110

1213

152134567

9

SER

SRCLKSRCLR

RCLKG

QAQCQBQDQEQFQGQH

QH

R63215

R69681

R64215

A

B

C

D

E

FG

D4

7-SEG LED 0.5

12

3

4

5

67

9

8

10

"E""D"

Anode-1

"C"

Dp

"B""A"

"F"

Anode-2

"G"

TP177

TP162

R23680

12345

678

TP175

U12

74HC595A

14

1110

1213

151234567

9

SER

SRCLKSRCLR

RCLKG

QAQBQCQDQEQFQGQH

QH

R9680

43218

765

TP155

U5

74HC595A

14

1110

1213

151234567

9

SER

SRCLKSRCLR

RCLKG

QAQBQCQDQEQFQGQH

QH

U6

74HC595A

14

1110

1213

151234567

9

SER

SRCLKSRCLR

RCLKG

QAQBQCQDQEQFQGQH

QH

R70681

R12680

43218

765

TP172

TP143

TP170

TP174

TP168

TP152

R13680

43218

765

R622.2K

43218

765

A

B

C

D

E

FG

D5

7-SEG LED 0.5

12

3

4

5

67

9

8

10

"E""D"

Anode-1

"C"

Dp

"B""A"

"F"

Anode-2

"G"

D27

10 LED Bargraph

21

5678910

34

11121314151617181920

D18

T1.75 (5mm) Green

12

TP149

D16

No Load

12

TP173

TP176

LED_SpO2_Clock

LED_SpO2_Latch

LED_SpO2_Data_In

LED_SpO2_Enable

A

A

B

B

C

C

D

D

E

E

4 4

3 3

2 2

1 1

Zero Adjust

Size Adjust

Vertical Amplifier

Horizontal AmplifierGrid Voltages

Video Amplifier

Break Away CRT socket Board

6 Position flat ribbon cableConnects Main CRT to CRTsocket Board

Ramp Generator

750uSec

16.7mSec

Vertical Sync

5.5uSec

31.7uSec

Horizontal Sync

To Yoke

Unused

BrightnessAdjust

FocusAdjust

1/2W Carbon Comp

To MainBoard

5-39097 JAC 3/9/99 LPP

Rick Myers

Rick Myers

Mar 4 1999

Mar 4 1999

620011.dsn

L.Phillips

Z.Psenicnik

J.Bello

3/9/99

3/9/99

3/9/99

Modify Video AmplifierReduce RF Emissions

ZIP4/15/99JJC5-39339

CIncrease Flex Cable to3 inches 5-39831 6/24/99LPP

D

Width Coil (L3)inductance rangechanged

Width Coil Inductance(L3) increased

B

LPP

5-40006 LPP 7/23/99



620011 D

CRT Deflection Board

C


Title


Date: Sheet of



Approved

Checked

Designed

Drawn

Initial Date

U4.2

U1.2

u1.7

u1.6

u1.5

vcadj+ vcadj-

vadj

U1.3

u2.2

ramp

q4.b

q3.b

u2.7 u2.6

vert-

hlin hwide

+12filt

q5.c

q5.b

hor+

vert+

q1.b

q1.e

J3.5J3.6

tube.g4

u4.4

q2.b

q6.d

vcadj

d6.c

Boost

Hor

+B

d5.c

Focus

Vg1

Vd

Vg2

d4.a

J3.1

u4-6

Grid2

C22-2

Video

HsyncVsync

Grid1

vidout

tube.vd

tube.g2

J3.3 tube.12V

tube.g1

tube.gndtube.g1

j2-3

hor-

q7-g

q8-b

q8-e

u2.1

+Vvid

+Vvid

+5V

+5V

+5V

+5V

+5V

+5V

+12V

+12V

+12V

+12V+12V

+12V

+12V

+12V

+12V

+12V

L315- 35uH

E1

21

R2410K

D61N4148

12

+ C13

22uF

Q6IRF640

2

1

34

D31N4935

1 2

R2819.6K

R43

5.11K

E2

21

D51N4937

1 2

J1

CON6

123456

R323.7K

D41N4935

12

D2

MUR120

1 2

C14.01uF

R15 38.3

R17 10C1.1uF

R9

1.47K

D11N4148

12R2310K

R45 330

To CRT

AnodeT1CRT-FBT

10

9

7

1

3

5

2

8

J4

CRT-Socket

1234567

U4F

74HCT04

13 12

C17.01uF

D71N4148

12

U4C

74HCT04

5 6

R10 1K

R5119.6K

U4E

74HCT04

11 10

C16.01uF

R741.2K

Q7BS170

1

2

3

+

- U2AMC34072

3

21

84

R16 10

J3

Flex6

123456

R11K

R44 330

U4B

74HCT04

3 4

R27.50K

R261K

R11

1.96K

R501.96K

U3MC78L05ACP

3 1

2

VIN VOUT

GN

D

R29 100K

+

-

U1BTLC272

5

67

84

C7.047uF

R25215

R12562

C6.047uF

R371.96K

C15.01uF

C8.022uF

J3x

Flex6

123456

R361.96K

C19.01uF

C96.8uF

R48100

R841.2K

L1

47uH

R641.2K

R41681

R13169

R2710

C2100pf

J2

CON5

12345

C3.047uF

R18562

Q2MPSW51A 3

2

1

C18.047uF

C20No Load

Q1MPSW01A

3

2

1

R521.96K

R14562

C22.022uF

R30100K

+ C1222uF

R20169

Q82N3904

3

2

1

Q4MPSW51A3

2

1

R3110K

E5

21

Q3MPSW01A

3

2

1

R21562

U4D

74HCT04

9 8

R19562

+

- U1ATLC272

3

21

84

+

-U2BMC34072

5

67

84

R2210K

C4.047uF

+ C522uF

U4A

74HCT04

1 2

R47 47K

E4

21

R46 47K

+C111000uF

R410K

+C101000uF

R542.2K

Q52N3904

3

2

1

E3

21

L215uH

R322.5Meg

A

A

B

B

C

C

D

D

E

E

4 4

3 3

2 2

1 1

PrintheadOn/Off Switch


ThermistorInput

+24V Boost(23.6 V nominal)

1

2

3

4

phase +

Connector Pin #

1 3 4 6

+

+ +

+ +

++

PrintheadConnector

Rick Myers

Rick Myers

Mar 5, 1999

Mar 5, 1999

620014.dsn

5-39179 JAC 3/18/99 LPP

L.Phillips

Z. Psenicnik

J. Bello

3/22/99

3/19/99

3/19/99



620014 A

Printer Electronics

C

1 1Monday, March 22, 1999

Title


Date: Sheet of



Approved

Checked

Designed

Drawn

Initial Date

Rec-Data

U2-fb

Rec-Data-Latch

Q4-D

Rec-Supply-On

U2-comp

U3-10

U1-1

Q4-

G

U1-2

Rec-StrobeRec-Clock

U2-

Isen

se

+12V

Q6-e

U2-

out

U3-8

Q4-s

U3-9

Strobe

+24V-switch

ClockLatch

Strobe

Data

u3-clk

Rec-Motor-Step

clk

data-IO

U3-7

U2-RT

J3-6

u6-6

J3-3J3-4

u6-clmp

u6-14u6-11

J3-1

u6-3

U3-5

U3-6

d6-c

Thermistor2Thermistor1

U1-3

q1-g

Q2-b

U3-3

n24Von

U2-Ref

Vpp

Vpp

u1-7

Rec-Temp

+5V

+12V

+5VRecVdc

+24V

RecVdc

+12V

D

+5V

+5V

D

+5V

D

+5V

D

+5V

D

+5V

+5V

D

+5V

D

D

A

A

A

A

A

A

A

A

A

A

A

A

AA

A

A

A

+24V

A

+5V

D

A

D

A

+24V

A

A A

A

A

A

+5V

+5V

+5V

A

A

C142200pF

TP27

Q4MTP30N06VL

23

1

4

U5C74HCT04

5 6

147

C18.047uF

U5B74HCT04

3 4

147

R224.22K

U5E74HCT04

11 10

147

TP29

C11.047uF

R193.16K

TP28

Q6MMBT3904L

3

1

2

R1310

R610K

TP14

R15147

R1619.6K

TP8

D3

BAV99L

1

3

2

R21K

TP10

R8 23.7K

R361.47K

TP24

Q2MMBT3904L

3

1

2

+ C61uF

R1410K

TP67

J3

CON6

123456

+ C41000uF

TP66

C3.01uF

+ C81800uF

C5 .01uF

TP68

L122uH

TP17

C2.01uF

R784.5K

C135600pF

R910K

R51K

C10.1uF

D2MBRS340T3

U5F74HCT04

13 12

147

D627V

13

U6ULN2065

36

1114

27916

18

1B2B3B4B

1C2C3C4C

CLMP1CLMP2

R241.96K

U2UC3843A

3

57

14

1

10

812

911

VFB

ISENSERT/CT

VREF

COMP

OUT

PW

R-G

ND

Vcc

GN

DV

c

TP9

C12.047uF

R18no-load

TP21

TP1

R351.47K

TP3

Q32N7002

3

1

2TP19

R1210K

+

- U1BMC34072

5

67

84

J2

CON16

12345678910111213141516

TP23

C21.047uF

R331.47K

R310K

+

- U1AMC34072

3

21

84

U3

PIC16C505

2

5

7

4

3

6

1 14

8

9

10

11

12

13ClkIn/Osc1/RB5

RC5/TOCK1

RC3

Vpp/MCLR/RB3

Clkout/Osc2/RB4

RC4

Vdd

Vss

RC2

RC1

RC0

RB2

RB1

RB0

TP6

Q1

MTP30P06V

2

1

34

R115.11K

C19.047uF

D127V

13

C1.047uF

+C2047uF

U5D74HCT04

9 8

147

U5A74HCT04

1 2

147

R1010K

C7.01uF

TP54

TP26

R341.47K

J1CON24A

1357911131517192123

2468

1012141618202224

R170.1

R151.1K

R49.09K

A

A

B

B

C

C

D

D

E

E

4 4

3 3

2 2

1 1

Front PanelDisplay Connector

Main PCAConnector

Recorder BoardConnector

CRT BoardConnector

EKG - Page6

Speaker Drive

SerialDataOut

4Vpp max.

NIBP - Page 2

SpO2 - Page4

EKG - Page4

To PIC

CO2 BoardConnector

Serial IO - Page8

Page1

(Front Panel Key)

(To Processor)(To U2)

(pg 3)

(pg 1)

FanConnector

620017.dsnRick Myers

Rick Myers

Mar 5, 1999

Mar 5, 1999

5-39121 JAC 3/15/99

L. Phillips

LPP

Z. Psenicnik

J. Bello

3/16/99

3/16/99

3/16/99

B See ECN worksheetRecorderESD Ground

D

Improvements for ESD, RFI,and Fast Transients, CorrectRespiration Diff-Amp Topology

5-39455 LPP LPP4/27/99

5-39821 LPP 6/24/99

E

Mods to U2 clock line, Resp gainamp, ECG supply, and NVRAMpullup

Jumper wirefrom J4-20 toJ4-55

5-39936 LPP 7/9/99

LPP

620017 E

Main Board - Model 220

C

1 8Tuesday, July 13, 1999

Title


Date: Sheet of



Approved

Checked

Designed

Drawn

Initial Date



Key-Data

U7-wc

SPI-Data-Out

Spare-3

NIBP-15mmHgNIBP-Data

Spare-2

SCL

Video-Data

SCD

SPO2-Tx

LED-Data-b

NIBP-Safety

Video-Data

HRESET

NIBP-OP

Video-VSync

Video-HSyncVideo-VSync

Video-HSync

Speaker-Audio

SPI-data-in

SPO2-Rx

SPO2-Rx

NIBP-PWM-ADC

NIBP-Valve-CloseVbackup

RS232-CTS

EROM-wr

ETCO2-Tx

FE-Clock

EKG-Data-Clock

PIC-Data

LED-Latch-b

LED-Latch

Key-Latch-n

ETCO2-Rx

RS423-Rx

RS423-Tx

Nurse-Call

Batt-ID

q2-c

Q1-e

+3.3V

Q2-b

ACON-LED

PIC-audio

NIBP-Offset-DACNIBP2-PW-ADC

LED-Data

Key-Latch-n-b

LED-On

LED-On

PIC-Clk

uP-RESET

SPI-Clock

Key-clock

Key-Clock-b

Rec-Clock

Rec-Motor-Step

Rec-Clock

Rec-Data-Latch Rec-Strobe

Rec-Data-LatchRec-Strobe

PIC-Vprog

Rec-Data

Rec-Motor-StepRec-Supply-On

Audio-Shutdown

SMR17-1

U9-

4

SP

U9-3

Audio-Shutdown

EKG-ADC-Clock

Power-Sync

ADC-Clock

EKG-PWM-ADC

Power-Sync

FE-Data

FE-DataVbackup

FE-Data-Clock

FE-ADC-Clock

FE-Data-In

+12V

NIBP-15mmHgNIBP-Safety

NIBP-PWM-ADCNIBP-Offset-DAC

NIBP-ADC-Clock

NIBP-Overpressure

NIBP-A/D-SelA

SpO2OutNIBP-Valve-Close

NIBP-Pump-On

NIBP-A/D-SelBNIBP-A/D-SelC

FE-Pwr-Sync

On/Off-Key

ac-on

+3.3V

U2-Reset

PIC-Data

RS423Rx

RS423Tx

NurseCall

AC+12V

Rec-GND

Battery

+3.3V

ac-on

AC+12V-fuse

ACON

+12V

Rec+DCV

Rec-GND

Rec-GND

Rec+DCV

Rec-GND

+12V

PIC-Clk

U2-Reset

PIC-Data

HRESET

Vbackup

On/Off

Batt-ID

On/Off-Key

Print-Temp

+5V

Rec-Supply-On

Rec+DCV

FE-PWM-ADC

+5V

+3.3V

+5V

D

D

D

D

D D

D

D

D

D

DD

D

D

D

D

D

D+5V

D

+5V

D

+5V

DD

+5V

DD

DD

+5V

A D

+3.3V

D

DD

+5V

+5V

D

D

+5V

+3.3V +5V

+5V

+5V

D

D

D

D

+5V

D

+5V

+12V

+5V

D

D

+5V

D

D

+5V

+5V

+5V

J1

CON7

1234567

C3220pF

J9

Tab-.187

12

U1B74HCT04

3 4

147

U8F74HCT04

13 12

147

C370.1uF

U1C74HCT04

56

147

TP14

TP13

TP15

+ C7330uF

U8C74HCT04

5 6

147

+

-

U9TPA301

3

41 6

728

5

C8.047uF

TP12

J4

Socket 30x2

13579

11131517192123252729313335373941434547495153555759

24681012141618202224262830323436384042444648505254565860

1357911131517192123252729313335373941434547495153555759

2468

1012141618202224262830323436384042444648505254565860

U8A74HCT04

12

147

R21.96K

TP18

R1919.6K

R410K

U3D74HCT08

12

1311

147

J8CON14AP

135791113

2468

101214

+++++++

+++++++

U274HCT595

14

1110

1213

151234567

9

168

SER

SRCLKSRCLR

RCLKG

QAQBQCQDQEQFQGQH

QH

VC

CG

ND

R519.6K

+

C364.7uF

U3A74HCT08

1

23

147

C22.047uF

TP17

C39.047uF

J6

CON6

123456

J2

CON3

123

TP23

C1.047uF

TP24

Q2MMBT3904L

3

1

2

U1A74HCT04

12

147

C20.047uF

R151.96K

J5

CON2

12

TP16

C23.047uF

C29.047uF

R163.48K

U3B74HCT08

4

56

147

TP19

Q32N7002

3

1

2

R2110K

TP1

U8D74HCT04

9 8

147

J11

CON3

123

TP2

TP22

R61.96K

TP20

TP3

R310K

TP21

TP4

R110K

U1F74HCT04

13 12

147

J3

CON4

1234

R2010K

+ C411uF

TP26

C40.047uF

Q1MMBT3906L

3

1

2

+ C4330uF

R2210K

U8E74HCT04

11 10

147

U1D74HCT04

9 8

147

TP11

C14.047uF

C5.047uF

U10

D620361-MX10000

2

5

7

4

3

6

1 14

8

9

10

11

12

13ClkIn/Osc1/RB5

TC5/TOCK1

RC3

Vpp/MCLR/RB3

Clkout/Osc2/RB4

RC4

Vdd

Vss

RC2

RC1

RC0

RB2

RB1

RB0

R231.21K

U3C74HCT08

9

108

147

C42.047uF

R241.21K

U1E74HCT04

11 10

147

U8B74HCT04

3 4

147

TP7

C38220pF

C30

.047uF

TP9

TP5

U7AT24C02N-10SC-2.7

123

6

7

5

84

A0A1A2

SCL

WC

SDA

VC

CG

ND

TP25

TP10

J7

CON24A

1357911131517192123

2468

1012141618202224

TP6

+

C354.7uF

TP8

R251.21K

R1719.6K

R181.21K

C2.047uF

A

A

B

B

C

C

D

D

E

E

4 4

3 3

2 2

1 1

A/D Mux


PWM A/DConverter

0mmHG = 0.5V 300mmHG = 4.0V

PWM D/A76.8KHz

PrimaryTransducer

NIBPPWM A/DConverter

ZeroOffset

SafetyTransducer



Rick Myers

Mar 5, 1999

Mar 5, 1999

3/15/99JAC5-39121 LPP

L. Phillips

Z. Psenicnik

J. Bello

3/16/99

3/16/99

3/16/99

B See ECN worksheet

DImprovements for ESD, RFI,and Fast Transients, CorrectRespiration Diff-Amp Topology

5-39455 LPP 4/27/99 LPP

6/24/995-39821 LPP

EMods to U2 clock line, Respgain amp, ECG supply andNVRAM pullup

7/9/99LPP5-39936

LPP



620017 E

NIBP ELECTRONICS

C


Title


Date: Sheet of



Approved

Checked

Designed

Drawn

Initial Date

D201-C

U208-2

U210-7

U204-7

U204-5

U203-3

U203-5

C207-1

U204-3

U204-2

U205-7

U206-6

U206-1

P202-Out-U206-7

U206-2

U202-3

P202-2

P202-5

U202-5

U208-1

u207-9

PrimaryPres

P4.25V

SafetyPres

U208-3

P201-Out

P201-6

U204-1

U208-7

U209-Out

U203-6

P202-Out+

U210-2

U210-3

U203-2

Q201-B

P.75V

+5V/2

U205-3

Q202-G

Pump-Pump+D

201-

A Valve-Valve+

U207-3

P201-pwr

NIBP-Offset-DAC

NIBP-ADC-Clock

P+.75V

NIBP-Safety

NIBP-PWM-ADC

P+12V

5VRef

NIBP-Overpressure

NIBP-15mmHg

Print-Temp

NIBP-A/D-SelB

+12V

+3.3V

+5V

P+.75V

NIBP-A/D-SelA

NIBP-A/D-SelC

BattCurrentBattVoltage

+5V +Vpump

NIBP-Pump-OnNIBP-Valve-Close

P+5V

P+5V

P+5V

P+5V

P+5V

P+5V

P+5VP+5V

P+5V

P+12V

P+12V

P+12V

P+12V

P+12V

+3.3V

+3.3V

P+12V

P+12V

P+12V

P+12V

P+12V

P+12V

+12V

P+12V

A

A

A

A

A

A

A

A

A

A

A

A

A

A

A

A

A

A

A

A

A

A

A

A

A

A

A

AA

A

A

A

A

A

A

A

A

A

A

A

A

A

A

A

A

A

A

AA

A

A

A

A

+

- U203ALM393

3

21

84

C215.047uF

+

-

U202AMC34072

3

21

84

C225.047uF

C2241000pF

U20178L05

8 1

2 3 6 7

IN OUT

GN

D

GN

D

GN

D

GN

D

TP214

R2333.48K

+

-

U208AMC34072

3

21

84

TP206

R2213.16K

C213.01uF

R23210K

R23010K

+ C2024.7uF

R24210K

C222.01uF

+

-

U205BMC34072

5

67

84

R23173.2K

TP217

Q201MMBT3904L

3

1

2

+

-

U206BMC34072

5

67

84

C223.01uF

TP225

D202BAV99L

1

3

2

R24010K

R2353.48K

R2291.96K

+

- U203BLM393

5

67

84

R24110K

R237464K

D201MMBD1503A

1

3

2

L201220uH

TP228

C220

.01uF

R243100KGain

and

Comp

XFPM-050KPGR-P1P201

1

2

3

6

+

-

U202BMC34072

5

67

84

TP207

U207B74HCT00

4

56

147

TP231

TP210

C232.047uF

+

-U210MAX941

2

3

61 4

7

5

C201.047uF

TP211

TP201

TP204

+C22910uF

TP237

C212680pF

TP240

TP232

C221.047uF

Q202MMDF2N02E

81

2

5 67

3

4

TP234

C205

.047uF

R21410K

C209.047uF

TP226

R2191.96K

C211

.047uF

R24631.6

C226.047uF

C216.047uF

R215100K

C231.01uF

U207A74HCT00

1

23

147

C204.047uF

TP221

C227680pF

TP222

+ C2071uF

R21619.6K

+

-

U204BMC34072

5

67

84

R2391K

R201576

+C2081uF

+

-

U204AMC34072

3

21

84

C203

.047uF

TP235

TP224

R2033.32K

R205750

C210.047uF

TP212

TP208

R24421.5K

TP213

C206.047uF

TP215

TP220

L202Bead

+

-

U208BMC34072

5

67

84

R2275.11K

R2363.83K

J201

CON5

12345

TP219

R22321.5K

U207C74HCT00

9

108

147

R2221K

R228

1.96K

R2241K

C230.047uF

U207D74HCT00

12

1311

147

TP239

TP236

R2251K

+

-

U205AMC34072

3

21

84

TP202

R2111.96K

R22621.5K

R2081.96K

C217

.047uF

-+

FPNS-07PGRP2022

13

5

6

+C2184.7uF

C219.047uF

C228.047uF

R2471K

TP209

R204150

R2481K

R21823.7K

R202174

R2175.62K

R21256.2K

R2343.48K

+

-

U206AMC34072

3

21

84

R213237K

Q203MMDF2N02E

81

2

5 67

3

4

R2091K

TP227

TP216

R207464K

TP229

R220806

R210464K

U2094051

131415121524

611109

3

168 7

X0X1X2X3X4X5X6X7

INHABC

XVD

DV

SS

VE

E

TP233

TP238

TP203

R2061K

TP230

C214.047uF

A

A

B

B

C

C

D

D

E

E

4 4

3 3

2 2

1 1

On/Off Switch

+12V Boost(12.1V nominal)

Float Voltage

On/Off Circuit18V Boost - Mosfet Gate Voltage

Current Limit(1.5 Amp)

+5V LinearLowDropout

BatteryCharger

HeatsinkforQ312

Ibatt=0: BattCurr=0.74V

Ibatt=1.5: BattCurr=2.87V

Heatsinkfor D301


Rick Myers

Mar 5, 1999

Mar 5, 1999

5-39121 JAC 3/15/99 LPP

L. Phillips

Z. Psenicnik

J. Bello

3/16/99

3/16/99

3/16/99

B See ECN worksheet LPP LPP5-39455 4/27/99


5-39821 LPP 6/24/99

EMods to U2 clock line, Respgain amp, ECG supply andNVRAM pullup

5-39936 LPP 7/9/99

LPP

620017 E

DC/DC Power Supplies

C


Title


Date: Sheet of



Approved

Checked

Designed

Drawn

Initial Date



U30

4-1

Q30

6-b

U301-ct

U30

5-1

U302-pwr

Q302-c

U305-6

Q305-d

Q307-e

Q308-d

U302-comp

U302-fb

U304-5

C324-2

U302-ct

Q31

0-b

U304-3

Q30

5-s

U303-ct

Q304-e

RT

301-1

U303-5 U305-pwr

R339-2

Bat-Adj

U304-7

U30

5-2

Q306-c

D307-A

U302-sense

U305-3

Bat-fuse

U30

2-ou

t

Q308-g

U304-2

V+18V

I-Batt

Q309-3

U304-6

C319-1

Q312-g

U301-comp

Q309-b

U305-5

C305-1

D312-c

Q313-d

Q314-d

U301-sw

U30

3-ou

tU301-pwr

U301-7

Q30

5-g

u307-6

Batt-fb

U303-fb

U303-cp

D304-C

L302

-1

Q303-s

Q302-B

Q301-b

C33

9-1

Q310-c

D309-a R343-1

F302-2 AC+12V-fuse

5VRef

5VRef

Ref-Batcharge

+12V

ACON

ACON

Ref-Batcharge

Battery

On/Off

+5V

AC+12V

+Vpump

Ref-Batcharge

VBackup

+3.3V

BattVoltage

BattCurrent

AC+12V-fuse

AC+12V-fuse

AC+12V-fuse

AC+12V-fuse

Rec+DCV

+Vfuse

+12V

+12V

D D

DDDD

+12V

D

+5V

TP340

TP321

Q305

MTP30N06VL

23

1

4

TP335

U306LF33CV

1 3

2

IN OUT

GN

D

C326.01uF

D301MBR2535CTL

1

324

+ C323100uF

R33319.6K

TP322

+ C325100uF

R34710K

D308 BAV99L

1

3

2

C322.047uF

TP345

R350

10K

Q312

MTP30N06VL

2 3

1

4

L305Bead

TP302

R30661.9K

TP341

D302BAV99L

1

3

2

F303

4Amp

R33919.6K

+ C3314.7uF

TP323

TP304

D3035.1V

13

C3055600pF

+

-

U305BMC34072

5

67

84

+ C3061uF

R3354.32K TP355

+ C3324.7uF

TP348

TP331

R31110K

TP328

R34910K

TP307U301MC34063AD

53

78

1

26

4

COMPTCAP

IPKIDC

ISWC

ISWEVcc

GN

D

TP315

Q310MMBT3904L

3

1

2

D309BAV70L

1

3

2

TP346

R34110K

+

-

U304AMC34072

3

21

84

TP330

D310MBRS340T3

TP306

C333.047uF

C314.047uF

R33219.6K

+ C3121000uF

R31919.6K

R3535.11K

C307.047uF

C337.047uF

HS302

6078

R331

33.2K

R3021.96K

Q311MTP30N06VL

23

1

4

R30110K

+C3191000uF

R31010K

TP332

C3241000pF

U302UC3843A

3

57

14

1

10

812

911

VFB

ISENSERT/CT

VREF

COMP

OUT

PW

R-G

ND

Vcc

GN

DV

c

D312BAV99L

1

3

2

C340.047uF

TP316

R3123.83K

D313NO LOAD

1

3

2

R304100K

R35514.7K

TP350

TP305

+C3021uF

R3270.1

C3095600pF

+

-

U305AMC34072

3

21

84

+ C3101000uF

L30222uH

D304MBRS340T3

L306Bead

R3251.96K

R34410K

TP329

R3074.64K

TP347

R338

1K

13

2

+ C301330uF

U303UC3843A

3

57

14

1

10

812

911

VFB

ISENSERT/CT

VREF

COMP

OUT

PW

R-G

ND

Vcc

GN

DV

c

R32210K

R32410K

L30447uH

R31810K

t

RT30110K

R34010K

Q307MMBT3904L

3

1

2

U307

LP2951CD-3.3

873

62

15

4

VINFDBKSHTDN

TAPSENS

VOUTERR

GN

D

Q313

2N7002

3

1

2

R3291K

R3378.87K

Q314

2N7002

3

1

2

F3014Amp

D311BAV70L

1

3

2

R33419.6K

Q306MMBT3904L

3

1

2

R315196

R33033.2K

Q304MMBT3904L

3

1

2

D305BAV99L

1

3

2

C338.047uF

C335.047uF

TP336

Q301MPSW51A

3

2

1

C3162200pF

+ C3391uF

C327.047uF

+ C329100uF

R34510K

D306MBRS340T3

Q309MMBT3906L

3

1

2

R30351.1K

TP339

C330.047uF

+

-

U304BMC34072

5

67

84

+ C318330uF

TP337

Q302MMBT3904L

3

1

2

D307MBRS340T3

TP326

R3525.11K

R323 1.96K

TP324

C328.047uF

R3131.96K

R32610

TP354

+ C304100uF

R3545.11K

+ C3111000uF

TP317

R31410

TP313

TP311

R3515.11K

C315.047uF

R34810K

TP338

Q308

MTP23P06V

2

1

34

TP320

R346100

TP351

Q303

MTP30N06VL

2 3

1

4

TP318

TP343

F3024Amp

R34219.6K

TP314

TP352

TP342

C334.047uF

C303470pf

R3094.64K

TP312

C321.01uF

TP349

TP333

R3207.5K

C336.047uF

L303Bead

C320.01uF

R3367.5K

R3177.5K

+ C313330uF

R34310K

TP309

R3051

C3082200pF

TP308

R3160.1

R32127.4K

R3281K

L3011mH

TP344

TP310

TP319

R30817.8K

HS301

6078

TP353

TP334

A

A

B

B

C

C

D

D

E

E

4 4

3 3

2 2

1 1

IsolationBarrier

Isolated SpO2Circuits

Grounded SpO2Circuits

Nonin SpO2Connector

Nellcor SpO2Connector


Rick Myers

Mar 5, 1999

Mar 5, 1999

3/15/99JAC5-39121 LPP

L. Phillips

Z. Psenicnik

J. Bello

3/16/99

3/16/99

3/16/99

B See ECN worksheet

SpO2 ESDGround

D

5-39455 LPP LPP4/27/99


6/24/99LPP5-39821

EMods to U2 clock line, Resp gain amp, ECG supply andNVRAM pullup

7/9/995-39936 LPP

LPP



620017 E

Power Isolation and SpO2 Interface

C


Title


Date: Sheet of



Approved

Checked

Designed

Drawn

Initial Date

U402-1

C409-1

T401-4

Q40

1-g

U402-sen

opto-fb

iso401-a

Q40

2-e

Q401-s

U401-1

C408-2

U401-2iso401-b

sSpO2tx

Q403-e

sSpO2tx

U402-e

U402-ref

U402-rt

iso402-a

U401-5

U401-3

U403-fb

f-V

f+V T401-1

T401-8

U401-7

R419-2

U402-ct

U411-6

FE-Pwr-Sync

SpO2Out

+5V

+12V

+12V

s+5V

f+V

+5V

fVcc

fVee

f+5V

f+V

SpO2-Reset

s+5V

iso+5Vdig

s-5V

s-5V

s+5V

iso+5Vdig

s+5V

f+V

S

S

S

S

S S

iso+5Vdig

S

S

S

S

ED

ED

SS S

S S

S

SS

S

SSS

S

S S

S

S

S

S

S

ED SE

S

S

S

S

+ C43110uF

TP451

TP459

J403

Tab-.187

12

+

-U401BLM358

5

67

84

+ C43210uF

TP466

TP462

+

- U401ALM358

3

21

84

TP464

R405215

TP455

R4235.11K

C404.047uF

C409470pf

C4361000pF

R4141.96K

T401

IsoXfmr

5

8

1

2

3

4

TP463

C4112200pF

TP452

C401.047uF

C403.047uF

TP460

R42410K

R41710K

TP449

TP461

+C406100uF

C417680pF

TP453

R415100

TP467

TP465

TP454

C430.047uF

R412196

+C407100uF

D403

MBRS130T3

U40778L05

81

2367

INOUT

GN

D

GN

D

GN

D

GN

D

R404196K

TP450

D401MBRS130T3

C416.047uF

R40110K

+C405100uF

+ C43410uF

L401220uH

U4104N25

1 6

2

5

4

TP468 L402220uH

J402

CON14AP

13579

1113

2468101214

+++++++

+++++++

TP456

C429.047uF

C402.047uF

C420.047uF

R4115.11K

R40710

U411HCNW4503

2

3

8

6

5

D405BAV99L

1

3

2

R4031K

R4095.11K

R408100

TP457

C410.01uF

+ C43510uF

U40479L05

21367

5

INOUTININING

ND

C413.047uF

R4060.2

J401

CON4

1234

R419215

C414.047uF

U403LP2951C

873

62

15

4

VINFDBK

SHTDN

TAPSENS

VOUTERR

GN

D

R4107.5K

TP469

+ C4184.7uF

R42210K

C433470pf

U402

LM3524DM

12

16

15

945

10

67

12111314

3

8

V-V+

VREF

VIN

COMP+SENSE-SENSE

SHTDWN

RTCT

CAEACBEB

OSCOUT

GN

D

+ C41210uF

Q402MMBT3906L

3

1

2

TP458

C408.01uf

R40210K

+ C41910uF

Q403MMBT3904L

3

1

2

C422.047uF

R41610K

+C4151uF

Q401MTD3055V

23

1

4

C424.047uF

+ C421

1uF

+ C42810uF

C427.047uF

A

A

B

B

C

C

D

D

E

E

4 4

3 3

2 2

1 1

0.1%

0.1%

0.1%

0.1%

0.1%

0.1%

0.1%

0.1%

0.1%

0.1%



WilsonNetwork

Lead Select

Diff AmpGain = 1

High Pass (0.05Hz or 0.5Hz)Low Pass (150Hz) Gain Stage

Gain = 74

RLD Amp

A/D InputsLeads Off

U501 U502 U503 U504 U505 U506 U507 U508

Shield 0.1%0.1%


Rick Myers

Mar 5, 1999

Mar 5, 1999

5-39121 JAC 3/15/99 LPP

L. Phillips

Z. Psenicnik

J. Bello

3/16/99

3/16/99

3/16/99

B See ECN worksheet

D

4/27/995-39455 LPP LPP


5-39821 LPP 6/24/99

Mods to U2 clock line, Respgain amp, ECG supply andNVRAM pullup

E LPP5-39936 7/9/99

LPP

620017 E

ECG Amp

C

5 8Wednesday, July 14, 1999

Title


Date: Sheet of



Approved

Checked

Designed

Drawn

Initial Date



U501-6

U502-3

U502-2

U502-5

U503-2

Right-Arm

aVRaVLaVF

LA

LA

LLLL

LALLV+

RA

RA

RA mux-

mux+diff+

U508-3

Q504-d

diff-

ecg-hp

D503-3

-clamp

D501-3

U501-5

U501-2

C514-2

U503-5

R509-1

R511-1

R513-1

R515-1

Left-Arm

Left-Leg

V-Lead

Right-Leg

U501-3

Q504-s

Q504-g

+clamp

U502-6

V-

U508-5

c539-1

c541-1

c538-1

c540-1

U508-6

u509

-4

diff-out

u501

-8

u508-2

D502-3

RL-mux

D504-3

D505-3

Q50

1-S

Mux-LdS-A

Sw-MonBw

Mux-LdS-B

Mux-LdS-C

RA

LA

LL

V+

VLdsOff

VLdsOff

VLdsOff

VLdsOff

VLdsOff

f+1.24V

fVcc

fVee

f+5V

vRL

+clamp

-clamp

Right-Arm

Left-Arm

An-ECG

Sw-RLD-RA

Sw-RLD-LA

Sw-RLD-LL

Sw-RLD-RL

Sw-RLD-V

fVcc

fVcc

fVee

fVee

fVcc

EEE

E E E

E

E

E

E

E

E

E

E

E

EE

E

E

E

E E E E E

EEEEE

E

E

E

E

E

E

E

E

E

E

E

E

E

E

E

S

S

S

S

S

E

E E

E

E

E

fVeefVee

fVee

E

fVcc

fVcc

fVcc

fVee

fVcc

fVcc

fVcc

fVee

fVee

fVee

fVee

fVcc

fVee

fVcc

fVcc

fVee

fVcc

fVee

fVcc

fVee

fVee

fVcc

R50610K

C520.047uF

TP542

R55922Meg

R51710K

R50710K

R55530.1K

C530.047uF

C525.047uF

TP505

+

-

U507BMC34002

5

67

84

R556

10K

C526.047uF

C506220pF

C543.047uF

+

-

U507AMC34002

3

21

84

C517.01uF

TP539

C528.047uF

N501LAMP NEON

Q5042N7002

3

1

2

R54410K

TP501

C532.047uF

R50151.1K

TP557

R56134.8K

D502MMBD1503A

1

3

2

C527.047uF

C501220pF

R56334.8K

TP538

R54710K

C531.047uF

R50810K

R562464K

C536.01uF

R549110K

TP540

TP524

C533.047uF

TP518

TP530

R5521K

TP509

R56022Meg

C529.047uF

TP559

R55173.2K

TP551

R50922Meg

TP502

D503MMBD1503A

1

3

2

N502LAMP NEON

TP517

R52610K

C507220pF

TP533

TP521

R50251.1K

C502220pF

TP556

Q5052N7002

3

1

2

+

-

U501AMC34002

3

21

84

R51010K

TP513TP511

R51910K

+

-

U502BMC34002

5

67

84

C541330pF

TP543

R5201.21K

+

-

U508BAD712

5

67

84

C539330pF

R51122Meg

R5481Meg

N503LAMP NEON C515

3.3uFC508220pF

C5441000pF

TP555

TP522

R55722Meg

R55019.6K

TP549

TP550

D501MMBD1503A

1

3

2

R50351.1K

-

+U509LMC7101

4

31

25

TP515

TP503

D504MMBD1503A

1

3

2

C503220pF TP531

TP537

R51210K

TP527

+ C5354.7uF

TP512

Q5022N7002

3

1

2

+ C5344.7uF

C523.047uF

TP519

C519.047uF

R52110K

R54510K

TP510

R51322Meg

TP523

C5381000pF

R52310K

TP536

J501CON6

123456

R553100K

TP504

R51410K

C504220pF

U504

DG202CSE

31

1416

119

68

1345

2

15

10

7

S1IN1

S2IN2

S3IN3

S4IN4

V+V-GND

D1

D2

D3

D4

TP558

R5241.21K

TP508

R51522Meg

TP535

N504LAMP NEON

TP520

R5181.21K

+

-

U503AMC34002

3

21

84

R50451.1K

R5221.21K

D5065.1V

13

TP514

C509220pF

TP547

+

-

U501BMC34002

5

67

84

TP526

C510220pF

+

-

U503BMC34002

5

67

84

D5075.1V

1 3

C511220pF

TP553

C5401000pF

N505LAMP NEON

R565121K

R564464K

C512220pF

TP507

C513220pF

D505BAV99L

1

3

2

R51610K

+

-

U502AMC34002

3

21

84

R50551.1K

R530 10K

C542220pF

C505220pF

R531 10K

C5451000pF

TP532

R55822Meg

R533 10K

R5271K

TP554

R535 10K

TP506

C5140.1uF

+

- U508AAD712

3

21

84

Q5012N7002

3

1

2

TP525

R536 10K

C516.047uF

R52851.1K

TP560

TP552

R537 10K

TP516

R52510K

TP548

C518.047uF

R532 10K

R529 10K

C522.047uF

C521.047uF

R534 10K

TP529

U5054051

131415121524

611109

3

168 7

X0X1X2X3X4X5X6X7

INHABC

X

VD

DV

SS

VE

E

TP561

C524.047uF

R54610K

TP528

U5064051

131415121524

611109

3

168 7

X0X1X2X3X4X5X6X7

INHABC

X

VD

DV

SS

VE

E

A

A

B

B

C

C

D

D

E

E

4 4

3 3

2 2

1 1

PWM A/DConverter

833uSec

-5V

(U604-10)

IntegratorInput

A/D Mux

+5V

(U602-7)

Serial/ParallelControl Data

PWM-Out

ComparatorInputs

PWM-timer

IsolationBarrier

52uSec

Analog In


0.1%

TemperatureThermistor

MuxB

MuxA

U605 U606


Rick Myers

Mar 5, 1999

Mar 5, 1999

3/15/99JAC5-39121 LPP

L. Phillips

Z. Psenicnik

J. Bello

3/16/99

3/16/99

3/16/99

U608 U609

U601

U603

U608 U609U603U602

U602U601

B See ECN worksheet 5-39455 LPP 4/27/99


LPP

6/24/995-39821 LPP


E 7/9/99LPP5-39936

LPP

620017 E

ECG A/D and Interface

C


Title


Date: Sheet of



Approved

Checked

Designed

Drawn

Initial Date



U605-out

U60

3out

Mux-A/D-B

U610-6U

602-

7

iso604-a

U60

2-5

iso601-a

Mux-A/D-C

Mux-A/D-A

U602-3

iso602-a

U60

4-8

Q60

1-e

U604-6

D601-2

U604-10

U608-2

U608-3

SW-RL-V

U601-7

Resp-LdsOff

Sw-RespReset

MuxB

U604-4iso603-a

U612-6

U60

2-2

Temp-In

MuxA

Patient-Temp

MonBw

U601-2

U601-1

U601-3

U608-1

U604-2 U613-6U60

4-1

U60

4-3

U611-6U60

4-5

U605-12

FE-Data-In

f+1.24V

An-ECG

LL

Mux-LdS-B

LA

FE-PWM-ADC

FE-ADC-Clock

Mux-LdS-A

RA

V+

Mux-LdS-CFE-Data-Clock

vRL

iso+5Vdig+5V

+Clamp-Clamp

f+1.24V

An-Resp

Resp-DC

f+1.24V

SpO2-Reset

Sw-MonBw

+5V

+5V

iso+5Vdig

+5V

f+5V

Resp-OfffVee

fVcc

Resp-Reset

SW-RLD-V

SW-RLD-RLSW-RLD-LL

SW-RLD-LASW-RLD-RA

E

f+5V

f+5V

ED

ED

E

fVee

E E

f+5V

fVcc

ED

f+5V

fVcc

E

f+5V

E

E

ED

E

iso+5Vdig

E

E

fVee

fVccfVee

fVcc

fVcc

fVcc

ED ED

E

E

iso+5Vdig

ED

iso+5Vdig

iso+5Vdig

E

iso+5Vdig

f+5V

ED

f+5V

ED

ED

ED

EE E

E E E

E E

E

E

E E

fVee

fVcc

fVee

fVcc

fVee

fVee

fVcc

fVee

fVee

fVcc

fVcc

ED

ED

ED

E

U60674HCT595

14

1110

1213

151234567

9

168

SER

SRCLKSRCLR

RCLKG

QAQBQCQDQEQFQGQH

QH

VC

CG

ND

TP621

U604F74HCT04

13 12

147

TP603

TP624

TP639

R63010K

C638.047uF

R6251K

U604A74HCT04

12

147

U6094051

131415121524

611109

3

168 7

X0X1X2X3X4X5X6X7

INHABC

XVD

DV

SS

VE

E

C637.047uF

R60410K

C6461000pF

C624.047uF

R60346.4K

TP642

R60110K

TP623

R60273.2K

R6315.11K

R6053.48K

R62346.4K

TP636

R607464K

C632.047uF

C645100pF

J601

CON2

12

R6081K

TP631

U611HCNW4503

2

3

8

6

5

+

- U602LM311

2

37

5 64 1

8

U613HCNW4503

2

3

8

6

5

TP640

Q601MMBT3904L

3

1

2

U612HCNW4503

2

3

8

6

5

TP637

C629.047uF

R6116.19K

TP641

TP604

R610511

TP633

TP616

R6136.19K

U60574HCT595

14

1110

1213

151234567

9

168

SER

SRCLKSRCLR

RCLKG

QAQBQCQDQEQFQGQH

QH

VC

CG

ND

U604C74HCT04

56

147

C640.047uF

C603680pF

R621215

C639.047uF

TP629

TP617

C6420.1uF

U604D74HCT04

9 8

147

R6156.19K

C6410.1uF

TP618

C631.047uF

TP643

TP628

TP627

R62246.4K

+ C6094.7uF

U604E74HCT04

11 10

147

U610HCNW4503

2

3

8

6

5

R619619

TP632

R620619

TP635

C633.01uF

C6362200pF

R62451.1K

C625.047uF

TP625

C601

1000pF

+

-

U601AMC34072

3

21

84

C626.047uF

C627.047uF

TP638

TP630

TP610

C634 .01uF

R6325.11K

R6172.15K

TP611

C647100pF

TP601

TP626

+

-

U608AAD712

3

21

84

C6280.1uF

D601MMBD1503A

1

3

2

R6261K

C623.047uF

R62910K

TP615

C635 .01uF

C621

0.1uF

TP609

C644220pF

+

-U607BLM393

5

67

84

+ C6144.7uF

C622.047uF

+

-U607ALM393

3

21

84

+

C6304.7uF

TP612

D602BAV99L

1

3

2

U604B74HCT04

34

147

TP613

+

-

U601BMC34072

5

67

84

TP605

C643220pF

TP614

TP606

R627 1.21K

U6034051

131415121524

611109

3

168 7

X0X1X2X3X4X5X6X7

INHABC

XVD

DV

SS

VE

E

TP620

TP607

R6063.48K

R62810K

+

-

U608BAD712

5

67

84

A

A

B

B

C

C

D

D

E

E

4 4

3 3

2 2

1 1

RespirationDriveCircuit

RespirationDiff Amp

B.W. = .06Hz to 16 Hz Gain =1000B.W. = 10Hz

IsolationBarrier

U702 U703


Rick Myers

Mar 5, 1999

Mar 5, 1999

5-39121 JAC 3/15/99 LPP

L. Phillips

Z. Psenicnik

J. Bello

3/16/99

3/16/99

3/16/99

B See ECN worksheet LPP LPP5-39455 4/27/99


LPP5-39821 6/24/99


E 5-39936 LPP 7/9/99

LPP



620017 E

Respiration

C


Title


Date: Sheet of



Approved

Checked

Designed

Drawn

Initial Date

U702-6

U702-2

U702-1U702-3

D70

3-1

Q701-d

Q70

1-g

U703-5Resp-AC

U703-6

D703-3

D701-3

D702-3

C701-1

C702-1

iso701-a

RespDr+

RespDr-

U70

3-2

d705-c

U702-7

resp-clk u710-6

D704-3 U702-5

Resp-Reset

An-Resp

-Clamp +Clamp

Right-Arm

Left-Arm

f+5V

Resp-DC

fVcc

fVee

f+5V

FE-Pwr-Sync

+5V

iso+5Vdig iso+5Vdig

Resp-Off

E

E EE

E

E E

E

E

E

E

E

E

ED

fVcc

fVcc

fVcc

fVeefVee

fVee

E

EE

E E E

E

E

ED

fVee

fVcc

C717.047uF

TP712

C715.047uF

C7011000pF

R720100K

C716.047uF

C7021000pF

C7130.1uF

C718.047uF

R7153.16K

TP708

D705MMBD354LT1

1

3

2

TP707

TP705

TP717

TP713

+

- U703BAD712

5

67

84

+

-

U703AAD712

3

21

84

TP702

U701B74HC74

12

11

9

8

14 10

7 13

D

CLK

Q

Q

VC

C

PR

GN

D

CL

R7052.15K

+ C7194.7uF

R71115.8K

C714.047uF

TP703

D706MMBD1503A

1

3

2

R7121K

R7131K

U710HCNW4503

2

3

8

6

5

C7123.3uF

TP704

C706330pF

R71415.8K

R7163.16K

R718825K

R7173.16K

R71951.1K

R709464K

R721316K

R722316

U701A74HC74

2

3

5

6

144

71

D

CLK

Q

Q

VC

C

PR

GN

D

CL

D701MMBD1503A

1

3

2

R7071.96K

D702MMBD1503A

1

3

2

+

-

U702B

AD7125

67

84

D703MMBD1503A

1

3

2

C707330pF

D704MMBD1503A

1

3

2

TP720

C7050.1uF

Q701MMBF4393L

2

3

1

TP723R7011.96K

TP709

C7110.1uF

R7021.96K

R706215

TP701

TP711

TP706

R710464K

TP716

TP710

R7081.96K

+

- U702AAD712

3

21

84

TP721

R70331.6K

TP718

R70431.6K

TP714

R7252.15K

TP722

TP719

C721100pF

C720.047uF

R7231Meg

R724196K

TP715

A

A

B

B

C

C

D

D

E

E

4 4

3 3

2 2

1 1

Serial I/Oconnector

IsolationBarrier

Isolated SupplySerialCommunication


Rick Myers

Mar 5, 1999

Mar 5, 1999

3/15/99JAC5-39121 LPP

L. Phillips

Z. Psenicnik

J. Bello

3/16/99

3/16/99

3/16/99

B See ECN worksheet 5-39455 4/27/99LPP LPP


D 6/24/995-39821 LPP


E 7/9/99LPP5-39936

LPP

620017 E

Serial Communication

C


Title


Date: Sheet of



Approved

Checked

Designed

Drawn

Initial Date



iso802-a

R80

3-2

ISO801-2

ISO801-4

ISO801-1

U80

1-ct

R815-1

U801-1

U802-15

T801-1

T801-4

U801-5

TxU802-3Rx

U802-2

T801-5

q801-e

iso803-a

q802-e

contact2

contact1

iso803-c

T801-2

R81

2-1

q802-b

+5V

RVcc

+5V

RVee

RS423Rx

+5V

R+5V

R+5V

RVee

R+5V RVcc

R+5V

NurseCall

RS423Tx

+Vfuse

R+5V

+5V

R

R

R

R

R

R

RR

R

R

RR

R

R

RR

R

R

C808.047uF

TP806

U801MC34063AD

53

78

1

26

4

COMPTCAP

IPKIDC

ISWC

ISWEVcc

GN

D

D803BAV99L

1

3

2

U805

TPS5908

1

2

3

4

7

6

LED

COMP

GND

FB

C

E

TP808

R8045.11K

C809.047uF

U803HCNW4503

2

3

8

6

5

Q801MMBT3904L

3

1

2

C802220pf

U804HCNW4503

2

3

8

6

5

C806.01uF

C814680pF

TP810

TP807

R813619

R8116.19K

R8076.19K

D801BAV99L

1

3

2

K801RELAY SPST

2

41

3

D802BAV99L

1

3

2

R8053.16K

TP809

R8061K

+ C803100uF

R812215

R8011

C813470pf

R819 215

Q802MMBT3904L

3

1

2

R8025.11K

R810619

+ C805100uF

+ C804100uF

TP802

R817 215

U802TL145406

2

4

6

3

5

7

15

13

11

14

12

10

116

89

1RA

2RA

3RA

1DY

2DY

3DY

1RY

2RY

3RY

1DA

2DA

3DA

Vdd

Vcc

Vss

GN

D

C816.047uF

+C8011uF

J801

RJ-45

12345678

TP804

C812680pF

R80310K

C815.047uF

C810.047uF

TP805

TP801

R808619

T801

IsoXfmr

5

8

1

2

3

4

TP803

R816215

C807470pf


APPENDIX E Calibration Date Cal. Date # of days Cal. Date # of days Cal. Date # of days

6/1/02 16126/2/02 16136/3/02 16146/4/02 16156/5/02 16166/6/02 16176/7/02 16186/8/02 16196/9/02 1620

6/10/02 16216/11/02 16226/12/02 16236/13/02 16246/14/02 16256/15/02 16266/16/02 16276/17/02 16286/18/02 16296/19/02 16306/20/02 16316/21/02 16326/22/02 16336/23/02 16346/24/02 16356/25/02 16366/26/02 16376/27/02 16386/28/02 16396/29/02 16406/30/02 1641

7/1/02 16427/2/02 16437/3/02 16447/4/02 16457/5/02 16467/6/02 16477/7/02 16487/8/02 16497/9/02 1650

7/10/02 16517/11/02 16527/12/02 16537/13/02 1654

7/14/02 16557/15/02 16567/16/02 16577/17/02 16587/18/02 16597/19/02 16607/20/02 16617/21/02 16627/22/02 16637/23/02 16647/24/02 16657/25/02 16667/26/02 16677/27/02 16687/28/02 16697/29/02 16707/30/02 16717/31/02 1672

8/1/02 16738/2/02 16748/3/02 16758/4/02 16768/5/02 16778/6/02 16788/7/02 16798/8/02 16808/9/02 1681

8/10/02 16828/11/02 16838/12/02 16848/13/02 16858/14/02 16868/15/02 16878/16/02 16888/17/02 16898/18/02 16908/19/02 16918/20/02 16928/21/02 16938/22/02 16948/23/02 16958/24/02 16968/25/02 1697

8/26/02 16988/27/02 16998/28/02 17008/29/02 17018/30/02 17028/31/02 1703

9/1/02 17049/2/02 17059/3/02 17069/4/02 17079/5/02 17089/6/02 17099/7/02 17109/8/02 17119/9/02 1712

9/10/02 17139/11/02 17149/12/02 17159/13/02 17169/14/02 17179/15/02 17189/16/02 17199/17/02 17209/18/02 17219/19/02 17229/20/02 17239/21/02 17249/22/02 17259/23/02 17269/24/02 17279/25/02 17289/26/02 17299/27/02 17309/28/02 17319/29/02 17329/30/02 173310/1/02 173410/2/02 173510/3/02 173610/4/02 173710/5/02 173810/6/02 173910/7/02 1740



10/8/02 174110/9/02 1742

10/10/02 174310/11/02 174410/12/02 174510/13/02 174610/14/02 174710/15/02 174810/16/02 174910/17/02 175010/18/02 175110/19/02 175210/20/02 175310/21/02 175410/22/02 175510/23/02 175610/24/02 175710/25/02 175810/26/02 175910/27/02 176010/28/02 176110/29/02 176210/30/02 176310/31/02 1764

11/1/02 176511/2/02 176611/3/02 176711/4/02 176811/5/02 176911/6/02 177011/7/02 177111/8/02 177211/9/02 1773

11/10/02 177411/11/02 177511/12/02 177611/13/02 177711/14/02 177811/15/02 177911/16/02 178011/17/02 178111/18/02 178211/19/02 1783

11/20/02 178411/21/02 178511/22/02 178611/23/02 178711/24/02 178811/25/02 178911/26/02 179011/27/02 179111/28/02 179211/29/02 179311/30/02 1794

12/1/02 179512/2/02 179612/3/02 179712/4/02 179812/5/02 179912/6/02 180012/7/02 180112/8/02 180212/9/02 1803

12/10/02 180412/11/02 180512/12/02 180612/13/02 180712/14/02 180812/15/02 180912/16/02 181012/17/02 181112/18/02 181212/19/02 181312/20/02 181412/21/02 181512/22/02 181612/23/02 181712/24/02 181812/25/02 181912/26/02 182012/27/02 182112/28/02 182212/29/02 182312/30/02 182412/31/02 1825

1/1/03 1826

1/2/03 18271/3/03 18281/4/03 18291/5/03 18301/6/03 18311/7/03 18321/8/03 18331/9/03 1834

1/10/03 18351/11/03 18361/12/03 18371/13/03 18381/14/03 18391/15/03 18401/16/03 18411/17/03 18421/18/03 18431/19/03 18441/20/03 18451/21/03 18461/22/03 18471/23/03 18481/24/03 18491/25/03 18501/26/03 18511/27/03 18521/28/03 18531/29/03 18541/30/03 18551/31/03 1856

2/1/03 18572/2/03 18582/3/03 18592/4/03 18602/5/03 18612/6/03 18622/7/03 18632/8/03 18642/9/03 1865

2/10/03 18662/11/03 18672/12/03 18682/13/03 1869



2/14/03 18702/15/03 18712/16/03 18722/17/03 18732/18/03 18742/19/03 18752/20/03 18762/21/03 18772/22/03 18782/23/03 18792/24/03 18802/25/03 18812/26/03 18822/27/03 18832/28/03 1884

3/1/03 18853/2/03 18863/3/03 18873/4/03 18883/5/03 18893/6/03 18903/7/03 18913/8/03 18923/9/03 1893

3/10/03 18943/11/03 18953/12/03 18963/13/03 18973/14/03 18983/15/03 18993/16/03 19003/17/03 19013/18/03 19023/19/03 19033/20/03 19043/21/03 19053/22/03 19063/23/03 19073/24/03 19083/25/03 19093/26/03 19103/27/03 19113/28/03 1912

3/29/03 19133/30/03 19143/31/03 1915

4/1/03 19164/2/03 19174/3/03 19184/4/03 19194/5/03 19204/6/03 19214/7/03 19224/8/03 19234/9/03 1924

4/10/03 19254/11/03 19264/12/03 19274/13/03 19284/14/03 19294/15/03 19304/16/03 19314/17/03 19324/18/03 19334/19/03 19344/20/03 19354/21/03 19364/22/03 19374/23/03 19384/24/03 19394/25/03 19404/26/03 19414/27/03 19424/28/03 19434/29/03 19444/30/03 1945

5/1/03 19465/2/03 19475/3/03 19485/4/03 19495/5/03 19505/6/03 19515/7/03 19525/8/03 19535/9/03 1954

5/10/03 1955

5/11/03 19565/12/03 19575/13/03 19585/14/03 19595/15/03 19605/16/03 19615/17/03 19625/18/03 19635/19/03 19645/20/03 19655/21/03 19665/22/03 19675/23/03 19685/24/03 19695/25/03 19705/26/03 19715/27/03 19725/28/03 19735/29/03 19745/30/03 19755/31/03 1976

6/1/03 19776/2/03 19786/3/03 19796/4/03 19806/5/03 19816/6/03 19826/7/03 19836/8/03 19846/9/03 1985

6/10/03 19866/11/03 19876/12/03 19886/13/03 19896/14/03 19906/15/03 19916/16/03 19926/17/03 19936/18/03 19946/19/03 19956/20/03 19966/21/03 19976/22/03 1998



6/23/03 19996/24/03 20006/25/03 20016/26/03 20026/27/03 20036/28/03 20046/29/03 20056/30/03 2006

7/1/03 20077/2/03 20087/3/03 20097/4/03 20107/5/03 20117/6/03 20127/7/03 20137/8/03 20147/9/03 2015

7/10/03 20167/11/03 20177/12/03 20187/13/03 20197/14/03 20207/15/03 20217/16/03 20227/17/03 20237/18/03 20247/19/03 20257/20/03 20267/21/03 20277/22/03 20287/23/03 20297/24/03 20307/25/03 20317/26/03 20327/27/03 20337/28/03 20347/29/03 20357/30/03 20367/31/03 2037

8/1/03 20388/2/03 20398/3/03 20408/4/03 2041

8/5/03 20428/6/03 20438/7/03 20448/8/03 20458/9/03 2046

8/10/03 20478/11/03 20488/12/03 20498/13/03 20508/14/03 20518/15/03 20528/16/03 20538/17/03 20548/18/03 20558/19/03 20568/20/03 20578/21/03 20588/22/03 20598/23/03 20608/24/03 20618/25/03 20628/26/03 20638/27/03 20648/28/03 20658/29/03 20668/30/03 20678/31/03 2068

9/1/03 20699/2/03 20709/3/03 20719/4/03 20729/5/03 20739/6/03 20749/7/03 20759/8/03 20769/9/03 2077

9/10/03 20789/11/03 20799/12/03 20809/13/03 20819/14/03 20829/15/03 20839/16/03 2084

9/17/03 20859/18/03 20869/19/03 20879/20/03 20889/21/03 20899/22/03 20909/23/03 20919/24/03 20929/25/03 20939/26/03 20949/27/03 20959/28/03 20969/29/03 20979/30/03 209810/1/03 209910/2/03 210010/3/03 210110/4/03 210210/5/03 210310/6/03 210410/7/03 210510/8/03 210610/9/03 2107

10/10/03 210810/11/03 210910/12/03 211010/13/03 211110/14/03 211210/15/03 211310/16/03 211410/17/03 211510/18/03 211610/19/03 211710/20/03 211810/21/03 211910/22/03 212010/23/03 212110/24/03 212210/25/03 212310/26/03 212410/27/03 212510/28/03 212610/29/03 2127



10/30/03 212810/31/03 2129

11/1/03 213011/2/03 213111/3/03 213211/4/03 213311/5/03 213411/6/03 213511/7/03 213611/8/03 213711/9/03 2138

11/10/03 213911/11/03 214011/12/03 214111/13/03 214211/14/03 214311/15/03 214411/16/03 214511/17/03 214611/18/03 214711/19/03 214811/20/03 214911/21/03 215011/22/03 215111/23/03 215211/24/03 215311/25/03 215411/26/03 215511/27/03 215611/28/03 215711/29/03 215811/30/03 2159

12/1/03 216012/2/03 216112/3/03 216212/4/03 216312/5/03 216412/6/03 216512/7/03 216612/8/03 216712/9/03 2168

12/10/03 216912/11/03 2170

12/12/03 217112/13/03 217212/14/03 217312/15/03 217412/16/03 217512/17/03 217612/18/03 217712/19/03 217812/20/03 217912/21/03 218012/22/03 218112/23/03 218212/24/03 218312/25/03 218412/26/03 218512/27/03 218612/28/03 218712/29/03 218812/30/03 218912/31/03 2190

1/1/04 21911/2/04 21921/3/04 21931/4/04 21941/5/04 21951/6/04 21961/7/04 21971/8/04 21981/9/04 2199

1/10/04 22001/11/04 22011/12/04 22021/13/04 22031/14/04 22041/15/04 22051/16/04 22061/17/04 22071/18/04 22081/19/04 22091/20/04 22101/21/04 22111/22/04 22121/23/04 2213

1/24/04 22141/25/04 22151/26/04 22161/27/04 22171/28/04 22181/29/04 22191/30/04 22201/31/04 2221

2/1/04 22222/2/04 22232/3/04 22242/4/04 22252/5/04 22262/6/04 22272/7/04 22282/8/04 22292/9/04 2230

2/10/04 22312/11/04 22322/12/04 22332/13/04 22342/14/04 22352/15/04 22362/16/04 22372/17/04 22382/18/04 22392/19/04 22402/20/04 22412/21/04 22422/22/04 22432/23/04 22442/24/04 22452/25/04 22462/26/04 22472/27/04 22482/28/04 22492/29/04 2250

3/1/04 22513/2/04 22523/3/04 22533/4/04 22543/5/04 22553/6/04 2256



3/7/04 22573/8/04 22583/9/04 2259

3/10/04 22603/11/04 22613/12/04 22623/13/04 22633/14/04 22643/15/04 22653/16/04 22663/17/04 22673/18/04 22683/19/04 22693/20/04 22703/21/04 22713/22/04 22723/23/04 22733/24/04 22743/25/04 22753/26/04 22763/27/04 22773/28/04 22783/29/04 22793/30/04 22803/31/04 2281

4/1/04 22824/2/04 22834/3/04 22844/4/04 22854/5/04 22864/6/04 22874/7/04 22884/8/04 22894/9/04 2290

4/10/04 22914/11/04 22924/12/04 22934/13/04 22944/14/04 22954/15/04 22964/16/04 22974/17/04 22984/18/04 2299

4/19/04 23004/20/04 23014/21/04 23024/22/04 23034/23/04 23044/24/04 23054/25/04 23064/26/04 23074/27/04 23084/28/04 23094/29/04 23104/30/04 2311

5/1/04 23125/2/04 23135/3/04 23145/4/04 23155/5/04 23165/6/04 23175/7/04 23185/8/04 23195/9/04 2320

5/10/04 23215/11/04 23225/12/04 23235/13/04 23245/14/04 23255/15/04 23265/16/04 23275/17/04 23285/18/04 23295/19/04 23305/20/04 23315/21/04 23325/22/04 23335/23/04 23345/24/04 23355/25/04 23365/26/04 23375/27/04 23385/28/04 23395/29/04 23405/30/04 23415/31/04 2342

6/1/04 23436/2/04 23446/3/04 23456/4/04 23466/5/04 23476/6/04 23486/7/04 23496/8/04 23506/9/04 2351

6/10/04 23526/11/04 23536/12/04 23546/13/04 23556/14/04 23566/15/04 23576/16/04 23586/17/04 23596/18/04 23606/19/04 23616/20/04 23626/21/04 23636/22/04 23646/23/04 23656/24/04 23666/25/04 23676/26/04 23686/27/04 23696/28/04 23706/29/04 23716/30/04 2372

7/1/04 23737/2/04 23747/3/04 23757/4/04 23767/5/04 23777/6/04 23787/7/04 23797/8/04 23807/9/04 2381

7/10/04 23827/11/04 23837/12/04 23847/13/04 2385



7/14/04 23867/15/04 23877/16/04 23887/17/04 23897/18/04 23907/19/04 23917/20/04 23927/21/04 23937/22/04 23947/23/04 23957/24/04 23967/25/04 23977/26/04 23987/27/04 23997/28/04 24007/29/04 24017/30/04 24027/31/04 2403

8/1/04 24048/2/04 24058/3/04 24068/4/04 24078/5/04 24088/6/04 24098/7/04 24108/8/04 24118/9/04 2412

8/10/04 24138/11/04 24148/12/04 24158/13/04 24168/14/04 24178/15/04 24188/16/04 24198/17/04 24208/18/04 24218/19/04 24228/20/04 24238/21/04 24248/22/04 24258/23/04 24268/24/04 24278/25/04 2428

8/26/04 24298/27/04 24308/28/04 24318/29/04 24328/30/04 24338/31/04 2434

9/1/04 24359/2/04 24369/3/04 24379/4/04 24389/5/04 24399/6/04 24409/7/04 24419/8/04 24429/9/04 2443

9/10/04 24449/11/04 24459/12/04 24469/13/04 24479/14/04 24489/15/04 24499/16/04 24509/17/04 24519/18/04 24529/19/04 24539/20/04 24549/21/04 24559/22/04 24569/23/04 24579/24/04 24589/25/04 24599/26/04 24609/27/04 24619/28/04 24629/29/04 24639/30/04 246410/1/04 246510/2/04 246610/3/04 246710/4/04 246810/5/04 246910/6/04 247010/7/04 2471

10/8/04 247210/9/04 2473

10/10/04 247410/11/04 247510/12/04 247610/13/04 247710/14/04 247810/15/04 247910/16/04 248010/17/04 248110/18/04 248210/19/04 248310/20/04 248410/21/04 248510/22/04 248610/23/04 248710/24/04 248810/25/04 248910/26/04 249010/27/04 249110/28/04 249210/29/04 249310/30/04 249410/31/04 2495

11/1/04 249611/2/04 249711/3/04 249811/4/04 249911/5/04 250011/6/04 250111/7/04 250211/8/04 250311/9/04 2504

11/10/04 250511/11/04 250611/12/04 250711/13/04 250811/14/04 250911/15/04 251011/16/04 251111/17/04 251211/18/04 251311/19/04 2514



11/20/04 251511/21/04 251611/22/04 251711/23/04 251811/24/04 251911/25/04 252011/26/04 252111/27/04 252211/28/04 252311/29/04 252411/30/04 2525

12/1/04 252612/2/04 252712/3/04 252812/4/04 252912/5/04 253012/6/04 253112/7/04 253212/8/04 253312/9/04 2534

12/10/04 253512/11/04 253612/12/04 253712/13/04 253812/14/04 253912/15/04 254012/16/04 254112/17/04 254212/18/04 254312/19/04 254412/20/04 254512/21/04 254612/22/04 254712/23/04 254812/24/04 254912/25/04 255012/26/04 255112/27/04 255212/28/04 255312/29/04 255412/30/04 255512/31/04 2556

1/1/05 2557

1/2/05 25581/3/05 25591/4/05 25601/5/05 25611/6/05 25621/7/05 25631/8/05 25641/9/05 2565

1/10/05 25661/11/05 25671/12/05 25681/13/05 25691/14/05 25701/15/05 25711/16/05 25721/17/05 25731/18/05 25741/19/05 25751/20/05 25761/21/05 25771/22/05 25781/23/05 25791/24/05 25801/25/05 25811/26/05 25821/27/05 25831/28/05 25841/29/05 25851/30/05 25861/31/05 2587

2/1/05 25882/2/05 25892/3/05 25902/4/05 25912/5/05 25922/6/05 25932/7/05 25942/8/05 25952/9/05 2596

2/10/05 25972/11/05 25982/12/05 25992/13/05 2600

2/14/05 26012/15/05 26022/16/05 26032/17/05 26042/18/05 26052/19/05 26062/20/05 26072/21/05 26082/22/05 26092/23/05 26102/24/05 26112/25/05 26122/26/05 26132/27/05 26142/28/05 2615

3/1/05 26163/2/05 26173/3/05 26183/4/05 26193/5/05 26203/6/05 26213/7/05 26223/8/05 26233/9/05 2624

3/10/05 26253/11/05 26263/12/05 26273/13/05 26283/14/05 26293/15/05 26303/16/05 26313/17/05 26323/18/05 26333/19/05 26343/20/05 26353/21/05 26363/22/05 26373/23/05 26383/24/05 26393/25/05 26403/26/05 26413/27/05 26423/28/05 2643



3/29/05 26443/30/05 26453/31/05 2646

4/1/05 26474/2/05 26484/3/05 26494/4/05 26504/5/05 26514/6/05 26524/7/05 26534/8/05 26544/9/05 2655

4/10/05 26564/11/05 26574/12/05 26584/13/05 26594/14/05 26604/15/05 26614/16/05 26624/17/05 26634/18/05 26644/19/05 26654/20/05 26664/21/05 26674/22/05 26684/23/05 26694/24/05 26704/25/05 26714/26/05 26724/27/05 26734/28/05 26744/29/05 26754/30/05 2676

5/1/05 26775/2/05 26785/3/05 26795/4/05 26805/5/05 26815/6/05 26825/7/05 26835/8/05 26845/9/05 2685

5/10/05 2686

5/11/05 26875/12/05 26885/13/05 26895/14/05 26905/15/05 26915/16/05 26925/17/05 26935/18/05 26945/19/05 26955/20/05 26965/21/05 26975/22/05 26985/23/05 26995/24/05 27005/25/05 27015/26/05 27025/27/05 27035/28/05 27045/29/05 27055/30/05 27065/31/05 2707

6/1/05 27086/2/05 27096/3/05 27106/4/05 27116/5/05 27126/6/05 27136/7/05 27146/8/05 27156/9/05 2716

6/10/05 27176/11/05 27186/12/05 27196/13/05 27206/14/05 27216/15/05 27226/16/05 27236/17/05 27246/18/05 27256/19/05 27266/20/05 27276/21/05 27286/22/05 2729

6/23/05 27306/24/05 27316/25/05 27326/26/05 27336/27/05 27346/28/05 27356/29/05 27366/30/05 2737

7/1/05 27387/2/05 27397/3/05 27407/4/05 27417/5/05 27427/6/05 27437/7/05 27447/8/05 27457/9/05 2746

7/10/05 27477/11/05 27487/12/05 27497/13/05 27507/14/05 27517/15/05 27527/16/05 27537/17/05 27547/18/05 27557/19/05 27567/20/05 27577/21/05 27587/22/05 27597/23/05 27607/24/05 27617/25/05 27627/26/05 27637/27/05 27647/28/05 27657/29/05 27667/30/05 27677/31/05 2768

8/1/05 27698/2/05 27708/3/05 27718/4/05 2772



8/5/05 27738/6/05 27748/7/05 27758/8/05 27768/9/05 2777

8/10/05 27788/11/05 27798/12/05 27808/13/05 27818/14/05 27828/15/05 27838/16/05 27848/17/05 27858/18/05 27868/19/05 27878/20/05 27888/21/05 27898/22/05 27908/23/05 27918/24/05 27928/25/05 27938/26/05 27948/27/05 27958/28/05 27968/29/05 27978/30/05 27988/31/05 2799

9/1/05 28009/2/05 28019/3/05 28029/4/05 28039/5/05 28049/6/05 28059/7/05 28069/8/05 28079/9/05 2808

9/10/05 28099/11/05 28109/12/05 28119/13/05 28129/14/05 28139/15/05 28149/16/05 2815

9/17/05 28169/18/05 28179/19/05 28189/20/05 28199/21/05 28209/22/05 28219/23/05 28229/24/05 28239/25/05 28249/26/05 28259/27/05 28269/28/05 28279/29/05 28289/30/05 282910/1/05 283010/2/05 283110/3/05 283210/4/05 283310/5/05 283410/6/05 283510/7/05 283610/8/05 283710/9/05 2838

10/10/05 283910/11/05 284010/12/05 284110/13/05 284210/14/05 284310/15/05 284410/16/05 284510/17/05 284610/18/05 284710/19/05 284810/20/05 284910/21/05 285010/22/05 285110/23/05 285210/24/05 285310/25/05 285410/26/05 285510/27/05 285610/28/05 285710/29/05 2858

10/30/05 285910/31/05 2860

11/1/05 286111/2/05 286211/3/05 286311/4/05 286411/5/05 286511/6/05 286611/7/05 286711/8/05 286811/9/05 2869

11/10/05 287011/11/05 287111/12/05 287211/13/05 287311/14/05 287411/15/05 287511/16/05 287611/17/05 287711/18/05 287811/19/05 287911/20/05 288011/21/05 288111/22/05 288211/23/05 288311/24/05 288411/25/05 288511/26/05 288611/27/05 288711/28/05 288811/29/05 288911/30/05 2890

12/1/05 289112/2/05 289212/3/05 289312/4/05 289412/5/05 289512/6/05 289612/7/05 289712/8/05 289812/9/05 2899

12/10/05 290012/11/05 2901



12/12/05 290212/13/05 290312/14/05 290412/15/05 290512/16/05 290612/17/05 290712/18/05 290812/19/05 290912/20/05 291012/21/05 291112/22/05 291212/23/05 291312/24/05 291412/25/05 291512/26/05 291612/27/05 291712/28/05 291812/29/05 291912/30/05 292012/31/05 2921

1/1/06 29221/2/06 29231/3/06 29241/4/06 29251/5/06 29261/6/06 29271/7/06 29281/8/06 29291/9/06 2930

1/10/06 29311/11/06 29321/12/06 29331/13/06 29341/14/06 29351/15/06 29361/16/06 29371/17/06 29381/18/06 29391/19/06 29401/20/06 29411/21/06 29421/22/06 29431/23/06 2944

1/24/06 29451/25/06 29461/26/06 29471/27/06 29481/28/06 29491/29/06 29501/30/06 29511/31/06 2952

2/1/06 29532/2/06 29542/3/06 29552/4/06 29562/5/06 29572/6/06 29582/7/06 29592/8/06 29602/9/06 2961

2/10/06 29622/11/06 29632/12/06 29642/13/06 29652/14/06 29662/15/06 29672/16/06 29682/17/06 29692/18/06 29702/19/06 29712/20/06 29722/21/06 29732/22/06 29742/23/06 29752/24/06 29762/25/06 29772/26/06 29782/27/06 29792/28/06 2980

3/1/06 29813/2/06 29823/3/06 29833/4/06 29843/5/06 29853/6/06 29863/7/06 2987

3/8/06 29883/9/06 2989

3/10/06 29903/11/06 29913/12/06 29923/13/06 29933/14/06 29943/15/06 29953/16/06 29963/17/06 29973/18/06 29983/19/06 29993/20/06 30003/21/06 30013/22/06 30023/23/06 30033/24/06 30043/25/06 30053/26/06 30063/27/06 30073/28/06 30083/29/06 30093/30/06 30103/31/06 3011

4/1/06 30124/2/06 30134/3/06 30144/4/06 30154/5/06 30164/6/06 30174/7/06 30184/8/06 30194/9/06 3020

4/10/06 30214/11/06 30224/12/06 30234/13/06 30244/14/06 30254/15/06 30264/16/06 30274/17/06 30284/18/06 30294/19/06 3030



4/20/06 30314/21/06 30324/22/06 30334/23/06 30344/24/06 30354/25/06 30364/26/06 30374/27/06 30384/28/06 30394/29/06 30404/30/06 3041

5/1/06 30425/2/06 30435/3/06 30445/4/06 30455/5/06 30465/6/06 30475/7/06 30485/8/06 30495/9/06 3050

5/10/06 30515/11/06 30525/12/06 30535/13/06 30545/14/06 30555/15/06 30565/16/06 30575/17/06 30585/18/06 30595/19/06 30605/20/06 30615/21/06 30625/22/06 30635/23/06 30645/24/06 30655/25/06 30665/26/06 30675/27/06 30685/28/06 30695/29/06 30705/30/06 30715/31/06 3072

6/1/06 3073

6/2/06 30746/3/06 30756/4/06 30766/5/06 30776/6/06 30786/7/06 30796/8/06 30806/9/06 3081

6/10/06 30826/11/06 30836/12/06 30846/13/06 30856/14/06 30866/15/06 30876/16/06 30886/17/06 30896/18/06 30906/19/06 30916/20/06 30926/21/06 30936/22/06 30946/23/06 30956/24/06 30966/25/06 30976/26/06 30986/27/06 30996/28/06 31006/29/06 31016/30/06 3102

7/1/06 31037/2/06 31047/3/06 31057/4/06 31067/5/06 31077/6/06 31087/7/06 31097/8/06 31107/9/06 3111

7/10/06 31127/11/06 31137/12/06 31147/13/06 31157/14/06 3116

7/15/06 31177/16/06 31187/17/06 31197/18/06 31207/19/06 31217/20/06 31227/21/06 31237/22/06 31247/23/06 31257/24/06 31267/25/06 31277/26/06 31287/27/06 31297/28/06 31307/29/06 31317/30/06 31327/31/06 3133

8/1/06 31348/2/06 31358/3/06 31368/4/06 31378/5/06 31388/6/06 31398/7/06 31408/8/06 31418/9/06 3142

8/10/06 31438/11/06 31448/12/06 31458/13/06 31468/14/06 31478/15/06 31488/16/06 31498/17/06 31508/18/06 31518/19/06 31528/20/06 31538/21/06 31548/22/06 31558/23/06 31568/24/06 31578/25/06 31588/26/06 3159



8/27/06 31608/28/06 31618/29/06 31628/30/06 31638/31/06 3164

9/1/06 31659/2/06 31669/3/06 31679/4/06 31689/5/06 31699/6/06 31709/7/06 31719/8/06 31729/9/06 3173

9/10/06 31749/11/06 31759/12/06 31769/13/06 31779/14/06 31789/15/06 31799/16/06 31809/17/06 31819/18/06 31829/19/06 31839/20/06 31849/21/06 31859/22/06 31869/23/06 31879/24/06 31889/25/06 31899/26/06 31909/27/06 31919/28/06 31929/29/06 31939/30/06 319410/1/06 319510/2/06 319610/3/06 319710/4/06 319810/5/06 319910/6/06 320010/7/06 320110/8/06 3202

10/9/06 320310/10/06 320410/11/06 320510/12/06 320610/13/06 320710/14/06 320810/15/06 320910/16/06 321010/17/06 321110/18/06 321210/19/06 321310/20/06 321410/21/06 321510/22/06 321610/23/06 321710/24/06 321810/25/06 321910/26/06 322010/27/06 322110/28/06 322210/29/06 322310/30/06 322410/31/06 3225

11/1/06 322611/2/06 322711/3/06 322811/4/06 322911/5/06 323011/6/06 323111/7/06 323211/8/06 323311/9/06 3234

11/10/06 323511/11/06 323611/12/06 323711/13/06 323811/14/06 323911/15/06 324011/16/06 324111/17/06 324211/18/06 324311/19/06 324411/20/06 3245

11/21/06 324611/22/06 324711/23/06 324811/24/06 324911/25/06 325011/26/06 325111/27/06 325211/28/06 325311/29/06 325411/30/06 3255

12/1/06 325612/2/06 325712/3/06 325812/4/06 325912/5/06 326012/6/06 326112/7/06 326212/8/06 326312/9/06 3264

12/10/06 326512/11/06 326612/12/06 326712/13/06 326812/14/06 326912/15/06 327012/16/06 327112/17/06 327212/18/06 327312/19/06 327412/20/06 327512/21/06 327612/22/06 327712/23/06 327812/24/06 327912/25/06 328012/26/06 328112/27/06 328212/28/06 328312/29/06 328412/30/06 328512/31/06 3286

1/1/07 32871/2/07 3288



1/3/07 32891/4/07 32901/5/07 32911/6/07 32921/7/07 32931/8/07 32941/9/07 3295

1/10/07 32961/11/07 32971/12/07 32981/13/07 32991/14/07 33001/15/07 33011/16/07 33021/17/07 33031/18/07 33041/19/07 33051/20/07 33061/21/07 33071/22/07 33081/23/07 33091/24/07 33101/25/07 33111/26/07 33121/27/07 33131/28/07 33141/29/07 33151/30/07 33161/31/07 3317

2/1/07 33182/2/07 33192/3/07 33202/4/07 33212/5/07 33222/6/07 33232/7/07 33242/8/07 33252/9/07 3326

2/10/07 33272/11/07 33282/12/07 33292/13/07 33302/14/07 3331

2/15/07 33322/16/07 33332/17/07 33342/18/07 33352/19/07 33362/20/07 33372/21/07 33382/22/07 33392/23/07 33402/24/07 33412/25/07 33422/26/07 33432/27/07 33442/28/07 3345

3/1/07 33463/2/07 33473/3/07 33483/4/07 33493/5/07 33503/6/07 33513/7/07 33523/8/07 33533/9/07 3354

3/10/07 33553/11/07 33563/12/07 33573/13/07 33583/14/07 33593/15/07 33603/16/07 33613/17/07 33623/18/07 33633/19/07 33643/20/07 33653/21/07 33663/22/07 33673/23/07 33683/24/07 33693/25/07 33703/26/07 33713/27/07 33723/28/07 33733/29/07 3374

3/30/07 33753/31/07 3376

4/1/07 33774/2/07 33784/3/07 33794/4/07 33804/5/07 33814/6/07 33824/7/07 33834/8/07 33844/9/07 3385

4/10/07 33864/11/07 33874/12/07 33884/13/07 33894/14/07 33904/15/07 33914/16/07 33924/17/07 33934/18/07 33944/19/07 33954/20/07 33964/21/07 33974/22/07 33984/23/07 33994/24/07 34004/25/07 34014/26/07 34024/27/07 34034/28/07 34044/29/07 34054/30/07 3406

5/1/07 34075/2/07 34085/3/07 34095/4/07 34105/5/07 34115/6/07 34125/7/07 34135/8/07 34145/9/07 3415

5/10/07 34165/11/07 3417



5/12/07 34185/13/07 34195/14/07 34205/15/07 34215/16/07 34225/17/07 34235/18/07 34245/19/07 34255/20/07 34265/21/07 34275/22/07 34285/23/07 34295/24/07 34305/25/07 34315/26/07 34325/27/07 34335/28/07 34345/29/07 34355/30/07 34365/31/07 3437

6/1/07 34386/2/07 34396/3/07 34406/4/07 34416/5/07 34426/6/07 34436/7/07 34446/8/07 34456/9/07 3446

6/10/07 34476/11/07 34486/12/07 34496/13/07 34506/14/07 34516/15/07 34526/16/07 34536/17/07 34546/18/07 34556/19/07 34566/20/07 34576/21/07 34586/22/07 34596/23/07 3460

6/24/07 34616/25/07 34626/26/07 34636/27/07 34646/28/07 34656/29/07 34666/30/07 3467

7/1/07 34687/2/07 34697/3/07 34707/4/07 34717/5/07 34727/6/07 34737/7/07 34747/8/07 34757/9/07 3476

7/10/07 34777/11/07 34787/12/07 34797/13/07 34807/14/07 34817/15/07 34827/16/07 34837/17/07 34847/18/07 34857/19/07 34867/20/07 34877/21/07 34887/22/07 34897/23/07 34907/24/07 34917/25/07 34927/26/07 34937/27/07 34947/28/07 34957/29/07 34967/30/07 34977/31/07 3498

8/1/07 34998/2/07 35008/3/07 35018/4/07 35028/5/07 3503

8/6/07 35048/7/07 35058/8/07 35068/9/07 3507

8/10/07 35088/11/07 35098/12/07 35108/13/07 35118/14/07 35128/15/07 35138/16/07 35148/17/07 35158/18/07 35168/19/07 35178/20/07 35188/21/07 35198/22/07 35208/23/07 35218/24/07 35228/25/07 35238/26/07 35248/27/07 35258/28/07 35268/29/07 35278/30/07 35288/31/07 3529

9/1/07 35309/2/07 35319/3/07 35329/4/07 35339/5/07 35349/6/07 35359/7/07 35369/8/07 35379/9/07 3538

9/10/07 35399/11/07 35409/12/07 35419/13/07 35429/14/07 35439/15/07 35449/16/07 35459/17/07 3546



9/18/07 35479/19/07 35489/20/07 35499/21/07 35509/22/07 35519/23/07 35529/24/07 35539/25/07 35549/26/07 35559/27/07 35569/28/07 35579/29/07 35589/30/07 355910/1/07 356010/2/07 356110/3/07 356210/4/07 356310/5/07 356410/6/07 356510/7/07 356610/8/07 356710/9/07 3568

10/10/07 356910/11/07 357010/12/07 357110/13/07 357210/14/07 357310/15/07 357410/16/07 357510/17/07 357610/18/07 357710/19/07 357810/20/07 357910/21/07 358010/22/07 358110/23/07 358210/24/07 358310/25/07 358410/26/07 358510/27/07 358610/28/07 358710/29/07 358810/30/07 3589

10/31/07 359011/1/07 359111/2/07 359211/3/07 359311/4/07 359411/5/07 359511/6/07 359611/7/07 359711/8/07 359811/9/07 3599

11/10/07 360011/11/07 360111/12/07 360211/13/07 360311/14/07 360411/15/07 360511/16/07 360611/17/07 360711/18/07 360811/19/07 360911/20/07 361011/21/07 361111/22/07 361211/23/07 361311/24/07 361411/25/07 361511/26/07 361611/27/07 361711/28/07 361811/29/07 361911/30/07 3620

12/1/07 362112/2/07 362212/3/07 362312/4/07 362412/5/07 362512/6/07 362612/7/07 362712/8/07 362812/9/07 3629

12/10/07 363012/11/07 363112/12/07 3632

12/13/07 363312/14/07 363412/15/07 363512/16/07 363612/17/07 363712/18/07 363812/19/07 363912/20/07 364012/21/07 364112/22/07 364212/23/07 364312/24/07 364412/25/07 364512/26/07 364612/27/07 364712/28/07 364812/29/07 364912/30/07 365012/31/07 3651

Manual Welch Allyn 62000

Documents

mmhg calibration

rev bupdated

calibration date table5

battery voltage calibration

e rev b copyright

bp calibration procedure

et co2 calibration

rev description ecn