SERVICE MANUAL COLOR TELEVISION DOCUMENT CREATED IN JAPAN, January, 2006 GREEN 13A26 13A26C (MFR’S VERSION B) FILE NO. 050-200603GR The above models are classified as a green products (*1), as indicated by the underlined serial number. This Service Manual describes replacement parts for the green product. When repairing these green product(s), use the part(s) described in this manual and lead-free solder (*2). For (*1) and (*2), see the next page.
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SERVICE MANUAL
COLOR TELEVISION
DOCUMENT CREATED IN JAPAN, January, 2006 GREEN
13A2613A26C
(MFR’S VERSION B)FILE NO. 050-200603GR
The above models are classified as a green products (*1), as indicated by the underlined serial
number. This Service Manual describes replacement parts for the green product. When repairing
these green product(s), use the part(s) described in this manual and lead-free solder (*2).
For (*1) and (*2), see the next page.
(*1) GREEN PRODUCT PROCUREMENTThe EC is actively promoting the WEEE & RoHS Directives that define standards for recyclingand reuse of Waste Electrical and Electronic Equipment and for the Restriction of the use ofcertain Hazardous Substances. From July 1, 2006, the RoHS Directive will prohibit anymarketing of new products containing the restricted substances.
Increasing attention is given to issues related to the global environmental. Toshiba Corporationrecognizes environmental protection as a key management tasks, and is doing its utmost toenhance and improve the quality and scope of its environmental activities. In line with this,Toshiba proactively promotes Green Procurement, and seeks to purchase and use products,parts and materials that have low environmental impacts.
Green procurement of parts is not only confined to manufacture. The same green parts used inmanufacture must also be used as replacement parts.
(*2) LEAD-FREE SOLDERThis product is manufactured using lead-free solder as a part of a movement within the consumerproducts industry at large to be environmentally responsible. Lead-free solder must be used inthe servicing and repair of this product.
WARNINGThis product is manufactured using lead free solder.
DO NOT USE LEAD BASED SOLDER TO REPAIR THIS PRODUCT !
The melting temperature of lead-free solder is higher than that of leaded solder by 86°F to 104°F(30°C to 40°C). Use of a soldering iron designed for lead-based solders to repair product madewith lead-free solder may result in damage to the component and or PCB being soldered. Greatcare should be made to ensure high-quality soldering when servicing this product especiallywhen soldering large components, through-hole pins, and on PCBs as the level of heatrequired to melt lead-free solder is high.
A1-1 13A26/13A26C
SERVICING NOTICES ON CHECKING
6. AVOID AN X-RAY1. KEEP THE NOTICES
As for the places which need special attentions,they are indicated with the labels or seals on thecabinet, chassis and parts. Make sure to keep theindications and notices in the operation manual.
3. USE THE DESIGNATED PARTS
5. TAKE CARE TO DEAL WITH THECATHODE-RAY TUBE
Safety is secured against an X-ray by consider-ing about the cathode-ray tube and the highvoltage peripheral circuit, etc.Therefore, when repairing the high voltage pe-ripheral circuit, use the designated parts andmake sure not modify the circuit.Repairing except indicates causes rising of highvoltage, and it emits an X-ray from the cathode-ray tube.
Please include the following informations when you order parts. (Particularly the VERSION LETTER.)1. MODEL NUMBER and VERSION LETTER
The MODEL NUMBER can be found on the back of each product and the VERSION LETTER can be found at the end of the SERIAL NUMBER.2. PART NO. and DESCRIPTION
You can find it in your SERVICE MANUAL.
HOW TO ORDER PARTS
When you exchange IC and Transistor with a heat sink, apply silicon grease on the contact section ofthe heat sink. Befor applying new silicon grease, remove all the old silicon grease. (Old grease maycause damages to the IC and Transistor.)
IMPORTANT
2. AVOID AN ELECTRIC SHOCKThere is a high voltage part inside. Avoid anelectric shock while the electric current isflowing.
The parts in this equipment have the specificcharacters of incombustibility and withstandvoltage for safety. Therefore, the part which isreplaced should be used the part which hasthe same character.Especially as to the important parts for safetywhich is indicated in the circuit diagram or thetable of parts as a mark, the designatedparts must be used.
4. PUT PARTS AND WIRES IN THEORIGINAL POSITION AFTERASSEMBLING OR WIRINGThere are parts which use the insulationmaterial such as a tube or tape for safety, orwhich are assembled in the condition thatthese do not contact with the printed board.The inside wiring is designed not to get closerto the pyrogenic parts and high voltage parts.Therefore, put these parts in the originalpositions.
In the condition that an explosion-proof cathode-ray tube is set in this equipment, safety issecured against implosion. However, whenremoving it or serving from backward, it isdangerous to give a shock. Take enough care todeal with it.
PERFORM A SAFETY CHECK AFTERSERVICING
7.
Confirm that the screws, parts and wiring whichwere removed in order to service are put in theoriginal positions, or whether there are theportions which are deteriorated around theserviced places serviced or not. Check theinsulation between the antenna terminal orexternal metal and the AC cord plug blades.And be sure the safety of that.(INSULATION CHECK PROCEDURE)
1.2.
3.
4.
Unplug the plug from the AC outlet.Remove the antenna terminal on TV and turnon the TV.Insulation resistance between the cord plugterminals and the eternal exposure metal[Note 2] should be more than 1M ohm byusing the 500V insulation resistance meter[Note 1].If the insulation resistance is less than 1Mohm, the inspection repair should berequired.
[Note 1]
If you have not the 500V insulationresistance meter, use a Tester.
[Note 2]External exposure metal: Antenna terminal
Headphone jack
A1-2 13A26/13A26C
TABLE OF CONTENTS
A2-1
GREEN PRODUCT PROCUREMENT ........................................................................................................LEAD-FREE SOLDER ................................................................................................................................SERVICING NOTICES ON CHECKING .....................................................................................................HOW TO ORDER PARTS ...........................................................................................................................IMPORTANT ................................................................................................................................................TABLE OF CONTENTS ..............................................................................................................................GENERAL SPECIFICATIONS ....................................................................................................................DISASSEMBLY INSTRUCTIONS
1.REMOVAL OF ANODE CAP ..............................................................................................................2.REMOVAL AND INSTALLATION OF FLAT PACKAGE IC ...............................................................
SERVICE MODE LIST .................................................................................................................................CONFIRMATION OF HOURS USED ..........................................................................................................WHEN REPLACING EEPROM (MEMORY) IC ...........................................................................................ELECTRICAL ADJUSTMENTS ..................................................................................................................BLOCK DIAGRAM ......................................................................................................................................PRINTED CIRCUIT BOARDS
MICON/CHROMA/TUNER ......................................................................................................................TV POWER .............................................................................................................................................DEFLECTION/CRT .................................................................................................................................
SOUND/AV .............................................................................................................................................WAVEFORMS .............................................................................................................................................MECHANICAL EXPLODED VIEW ..............................................................................................................MECHANICAL REPLACEMENT PARTS LIST ..........................................................................................ELECTRICAL REPLACEMENT PARTS LIST ............................................................................................
G-9 Clock and Sleep Timer Max Time 120 Min Timer Step 10 Min
On Timer Program(On Timer ) YesWake Up Timer NoTimer Back-up (at Power Off Mode) more than -- Min Sec
A3-2 13A26
GENERAL SPECIFICATIONS
G-10 Remote Unit RC-EHControl Glow in Dark Remocon Yes
Format ToshibaCustom Code 40-BF hPower Source Voltage(D.C) 3V
UM size x pcs UM-4 x 2 pcs Total Keys 27 KeysKeys Power Yes
1 Yes2 Yes3 Yes4 Yes5 Yes6 Yes7 Yes8 Yes9 Yes0 Yes100 NoCH Up YesCH Down YesVolume Up YesVolume Down YesTV/Caption/Text YesCH1/CH2 YesTV/Video(TV/AV) YesCH RTN/CH ENT(Quick View) YesSleep YesRE Call(Call) YesReset YesMenu YesEnter YesMute YesExit NoMTS(Audio Select) NoSet + YesSet - Yes
Multi Brand Keys CH Up(VCR) NoCH Down(VCR) NoPause/Still NoTV/VCR(VCR) NoCode NoFF NoRew NoRec NoPlay NoStop NoTV NoVCR NoCable No
A3-3 13A26
GENERAL SPECIFICATIONS
G-11 Features Auto Degauss YesAuto Shut Off YesCanal+ NoCATV YesAnti-theft NoRental NoMemory(Last CH) YesMemory(Last Volume) YesV-Chip Yes
Type USA,ORION TypeBBE NoAuto Search NoCH Allocation NoSAP NoChannel Lock NoJust Clock Function NoGame Position NoCH Label NoVM Circuit NoFull OSD NoPremiere NoComb Filter No
LinesAuto CH Memory YesHotel Lock NoClosed Caption YesFBT Leak Test Protect YesCH Lock YesVideo Lock YesGame Timer (Max Time:120 Min) YesStable Sound NoEnergy Star NoPower On Memory YesFavorite CH No
G-12 Accessories Owner's Manual Language English/Spanishw/Guarantee Card Yes
AC Cord NoAV Cord (2Pin-1Pin) NoRegistration Card (NDL Card) YesESP Card No300 ohm to 75 ohm Antenna Adapter No
A3-4 13A26
GENERAL SPECIFICATIONS
G-13 Interface Switch Front Power YesSystem Select No Main Power SW No Sub Power No Channel Up/Reset YesChannel Down/Enter YesVolume Up/Set Up YesVolume Down/Set Down YesMENU=Volume Up+Volume Down Yes
Rear AC/DC No TV/CATV Selector No Degauss No Main Power SW No
Indicator Power YesStand-by NoOn Timer No
Terminals Front Video Input RCA Audio Input RCA x 1 Other Terminal Ear Phone
Rear Video Input(Rear1) NoVideo Input(Rear2) NoAudio Input(Rear1) NoAudio Input(Rear2) NoVideo Output NoAudio Output NoEuro Scart NoColor Stream NoDiversity NoExt Speaker NoDC Jack 12V(Center +) NoVHF/UHF Antenna Input F TypeAC Outlet No
G-14 Set Size Approx. W x D x H (mm) 362 x 360 x 320.5 G-15 Weight Net (Approx.) 9.5 kg ( 20.9 lbs)
Gross (Approx.) 11.0kg ( 24.4lbs)G-16 Carton Master Carton No
Content ---- SetsMaterial -- /--Dimensions W x D x H(mm) -- x -- x -- Description of Origin No
Gift Box Material Double/BrownDimensions W x D x H(mm) 440 x 408 x 380 Description of Origin Yes
Drop Test Natural Dropping At 1 Corner / 3Edges / 6 Surfaces
G-9 Clock and Sleep Timer Max Time 120 Min Timer Step 10 Min
On Timer Program(On Timer ) YesWake Up Timer NoTimer Back-up (at Power Off Mode) more than -- Min Sec
A3-7 13A26C
GENERAL SPECIFICATIONS
G-10 Remote Unit RC-EHControl Glow in Dark Remocon Yes
Format ToshibaCustom Code 40-BF hPower Source Voltage(D.C) 3V
UM size x pcs UM-4 x 2 pcs Total Keys 27 KeysKeys Power Yes
1 Yes2 Yes3 Yes4 Yes5 Yes6 Yes7 Yes8 Yes9 Yes0 Yes100 NoCH Up YesCH Down YesVolume Up YesVolume Down YesTV/Caption/Text YesCH1/CH2 YesTV/Video(TV/AV) YesCH RTN/CH ENT(Quick View) YesSleep YesRE Call(Call) YesReset YesMenu YesEnter YesMute YesExit NoMTS(Audio Select) NoSet + YesSet - Yes
Multi Brand Keys CH Up(VCR) NoCH Down(VCR) NoPause/Still NoTV/VCR(VCR) NoCode NoFF NoRew NoRec NoPlay NoStop NoTV NoVCR NoCable No
A3-8 13A26C
GENERAL SPECIFICATIONS
G-11 Features Auto Degauss YesAuto Shut Off YesCanal+ NoCATV YesAnti-theft NoRental NoMemory(Last CH) YesMemory(Last Volume) YesV-Chip No
TypeBBE NoAuto Search NoCH Allocation NoSAP NoChannel Lock NoJust Clock Function NoGame Position NoCH Label NoVM Circuit NoFull OSD NoPremiere NoComb Filter No
LinesAuto CH Memory YesHotel Lock NoClosed Caption YesFBT Leak Test Protect YesCH Lock YesVideo Lock YesGame Timer (Max Time:120 Min) YesStable Sound NoEnergy Star NoPower On Memory YesFavorite CH No
G-12 Accessories Owner's Manual Language English/Frenchw/Guarantee Card Yes
AC Cord NoAV Cord (2Pin-1Pin) NoRegistration Card (NDL Card) NoESP Card No300 ohm to 75 ohm Antenna Adapter No
A3-9 13A26C
GENERAL SPECIFICATIONS
G-13 Interface Switch Front Power YesSystem Select No Main Power SW No Sub Power No Channel Up/Reset YesChannel Down/Enter YesVolume Up/Set Up YesVolume Down/Set Down YesMENU=Volume Up+Volume Down Yes
Rear AC/DC No TV/CATV Selector No Degauss No Main Power SW No
Indicator Power YesStand-by NoOn Timer No
Terminals Front Video Input RCA Audio Input RCA x 1 Other Terminal Ear Phone
Rear Video Input(Rear1) NoVideo Input(Rear2) NoAudio Input(Rear1) NoAudio Input(Rear2) NoVideo Output NoAudio Output NoEuro Scart NoColor Stream NoDiversity NoExt Speaker NoDC Jack 12V(Center +) NoVHF/UHF Antenna Input F TypeAC Outlet No
G-14 Set Size Approx. W x D x H (mm) 362 x 360 x 320.5 G-15 Weight Net (Approx.) 9.5 kg ( 20.9 lbs)
Gross (Approx.) 11.0kg ( 24.4lbs)G-16 Carton Master Carton No
Content ---- SetsMaterial -- /--Dimensions W x D x H(mm) -- x -- x -- Description of Origin No
Gift Box Material Double/BrownDimensions W x D x H(mm) 440 x 408 x 380 Description of Origin Yes
Drop Test Natural Dropping At 1 Corner / 3Edges / 6 Surfaces
G-17 Cabinet Material Cabinet Cabinet Front PS 94V0 DECABROM Cabinet Rear PS 94V0 DECABROM
PCB Non-Halogen Demand NoEyelet Demand Yes
G-18 Environment Environmental standard requirement Green procurement of TOSHIBAPb-free Phase3(Ph
A3-10 13A26C
B1-1 13A26/13A26C
1. REMOVAL OF ANODE CAPRead the following NOTED items before starting work.
After turning the power off there might still be a potentialvoltage that is very dangerous. When removing theAnode Cap, make sure to discharge the Anode Cap'spotential voltage.Do not use pliers to loosen or tighten the Anode Capterminal, this may cause the spring to be damaged.
*
*
REMOVAL
1. Follow the steps as follows to discharge the Anode Cap.(Refer to Fig. 1-1.)Connect one end of an Alligator Clip to the metal part of aflat-blade screwdriver and the other end to ground.While holding the plastic part of the insulated Screwdriver,touch the support of the Anode with the tip of theScrewdriver.A cracking noise will be heard as the voltage is discharged.
Flip up the sides of the Rubber Cap in the direction of thearrow and remove one side of the support.(Refer to Fig. 1-2.)
2.
DISASSEMBLY INSTRUCTIONS
GND on the CRT
Screwdriver
Alligator Clip
SupportCRT
GND on the CRT
Rubber Cap
CRTSupport
Fig. 1-1
Fig. 1-2
3. After one side is removed, pull in the opposite direction toremove the other.
NOTE
Take care not to damage the Rubber Cap.
INSTALLATION
1. Clean the spot where the cap was located with a smallamount of alcohol. (Refer to Fig. 1-3.)
Location of Anode Cap
Fig. 1-3
NOTE
Confirm that there is no dirt, dust, etc. at the spot wherethe cap was located.
2.
3.
Arrange the wire of the Anode Cap and make sure thewire is not twisted.Turn over the Rubber Cap. (Refer to Fig. 1-4.)
Fig. 1-4
4. Insert one end of the Anode Support into the anode button,then the other as shown in Fig. 1-5.
5.6.
Confirm that the Support is securely connected.Put on the Rubber Cap without moving any parts.
CRTSupport
Fig. 1-5
B2-1 13A26/13A26C
Masking Tape(Cotton Tape)
DISASSEMBLY INSTRUCTIONS
2.
REMOVAL
IC
Put Masking Tape (cotton tape) around the Flat PackageIC to protect other parts from any damage.(Refer to Fig. 2-1.)
1.
Fig. 2-1
NOTE
REMOVAL AND INSTALLATION OFFLAT PACKAGE IC
Some ICs on the PCB are affixed with glue, so becareful not to break or damage the foil of each IC leadsor solder lands under the IC when removing it.
NOTE
Masking is carried out on all the parts located within 10mm distance from IC leads.
Blower type ICdesoldering machine
IC
Heat the IC leads using a blower type IC desolderingmachine. (Refer to Fig. 2-2.)
2.
Fig. 2-2
NOTE
Do not rotate or move the IC back and forth , until ICcan move back and forth easily after desoldering theleads completely.
When IC starts moving back and forth easily afterdesoldering completely, pickup the corner of the IC using atweezers and remove the IC by moving with the ICdesoldering machine. (Refer to Fig. 2-3.)
3.
Blower type ICdesolderingmachine
IC
Fig. 2-3
Tweezers
Peel off the Masking Tape.4.
Absorb the solder left on the pattern using the BraidedShield Wire. (Refer to Fig. 2-4.)
5.
NOTE
Do not move the Braided Shield Wire in the verticaldirection towards the IC pattern.
Braided Shield Wire
Soldering Iron
Fig. 2-4IC pattern
B2-2 13A26/13A26C
DISASSEMBLY INSTRUCTIONS
Supply solderingfrom upper positionto lower position
IC
Supply the solder from the upper position of IC leadssliding to the lower position of the IC leads. (Refer to Fig. 2-6.)
2.
Fig. 2-6
Soldering IronSolder
IC
Absorb the solder left on the lead using the Braided ShieldWire. (Refer to Fig. 2-7.)
3.
Fig. 2-7
Soldering Iron
Braided Shield Wire
NOTE
Do not absorb the solder to excess.
IC
When bridge-soldering between terminals and/or thesoldering amount are not enough, resolder using a Thin-tipSoldering Iron. (Refer to Fig. 2-8.)
4.
Fig. 2-8
Thin-tip Soldering Iron
NOTE
When the IC leads are bent during soldering and/orrepairing, do not repair the bending of leads. If thebending of leads are repaired, the pattern may bedamaged. So, always be sure to replace the IC in thiscase.
Finally, confirm the soldering status on four sides of the ICusing a magnifying glass.Confirm that no abnormality is found on the solderingposition and installation position of the parts around the IC.If some abnormality is found, correct by resoldering.
5.Solder temporarily
Soldering Iron
INSTALLATION
Take care of the polarity of new IC and then install the newIC fitting on the printed circuit pattern. Then solder eachlead on the diagonal positions of IC temporarily.(Refer to Fig. 2-5.)
1.
Fig. 2-5
Solder temporarily
This unit is provided with the following SERVICE MODES so you can repair, examine and adjust easily.To enter the Service Mode, press both set key and remote control key for more than 2 seconds.
Set Key Remocon Key Operations
VOL. (-) MIN 1
Initialization of factory data.NOTE: Do not use this for normal servicing. If you set factory initialization, the memories are reset such as the channel setting, the POWER ON total hours.
VOL. (-) MIN 6
POWER ON total hours is displayed on the screen.Refer to the "CONFIRMATION OF HOURS USED".
Can be checked of the INITIAL DATA of MEMORY IC.Refer to the "WHEN REPLACING EEPROM (MEMORY) IC".
VOL. (-) MIN Display of the Adjustment MENU on the screen.Refer to the "ELECTRICAL ADJUSTMENT" (On-Screen Display Adjustment).
9
CONFIRMATION OF HOURS USED
POWER ON total hours can be checked on the screen. Total hours are displayed in 16 system of notation.
NOTE: If you set factory initialization, the total hours is reset to "0".
1.2.
3.
Set the VOLUME to minimum.Press both VOL. DOWN button on the set and Channelbutton (6) on the remote control for more than 2 seconds.After the confirmation of using hours, turn off the power.
FIG. 1
Initial setting content of MEMORY IC.
POWER ON total hours. = (16 x 16 x 16 x thousands digit value) + (16 x 16 x hundreds digit value) + (16 x tens digit value) + (ones digit value)
ADDRESS DATA
INIT 00 D0
CRT ON 0010
VOL. (-) MIN 0 Releasing of V-CHIP PASSWORD.
WHEN REPLACING EEPROM (MEMORY) ICIf a service repair is undertaken where it has been required to change the MEMORY IC, the following steps should be taken toensure correct data settings while making reference to TABLE 1.
Table 1
+9+2INI +0 +1 +3 +4 +5 +6 +7
00
+8 +A
47 B3 24 69 00 00D0 04 EB 4E
+B +C +D +E +F
05 90 D4 00 07
1.2.
3.
4.5.6.7.8.
9.10.11.The unit will now have the correct DATA for the new MEMORY IC.
Enter DATA SET mode by setting VOLUME to minimum.While holding down VOLUME button on front cabinet, press key (6) on remote control for more than 2 seconds.ADDRESS and DATA should appear as FIG 1.ADDRESS is now selected and should "blink". Using the VOL. +/- button on the remote, step through the ADDRESS untilrequired ADDRESS to be changed is reached.Press ENTER to select DATA. When DATA is selected, it will "blink".Again, step through the DATA using VOL. +/- button until required DATA value has been selected.Pressing ENTER will take you back to ADDRESS for further selection if necessary.Repeat steps 3 to 6 until all data has been checked.When satisfied correct DATA has been entered, turn POWER off (return to STANDBY MODE) to finish DATA input.After the data input, set to the initializing of shipping.Turn POWER on.While holding down VOLUME button on front cabinet, press key (1) on remote control for more than 2 seconds.After the finishing of the initializing of shipping, the unit will turn off automatically.
SERVICE MODE LIST
39 38
USA CANADAINI
08
*1
*1
C-1 13A26/13A26C
ELECTRICAL ADJUSTMENTS
D-1 13A26/13A26C
1.
Read and perform these adjustments when repairing thecircuits or replacing electrical parts or PCB assemblies.
CAUTION
•
•
•
•
Use an isolation transformer when performing any serviceon this chassis.Before removing the anode cap, discharge electricitybecause it contains high voltage.When removing a PCB or related component, afterunfastening or changing a wire, be sure to put the wireback in its original position.When you exchange IC and Transistor for a heat sink,apply the silicon grease (YG6260M) on the contractsection of the heat sink, Before applying new silicongrease, remove all the old silicon grease. (Old greasemay cause damages to the IC and Transistor.)
2. BASIC ADJUSTMENTSBEFORE MAKING ELECTRICALADJUSTMENTS 2-1: CUT OFF
1.
2.3.
4.
Adjust the unit to the following settings.R.DRIVE=10, B.DRIVE=10, R.BIAS=64, G.BIAS=64,B.BIAS=64, BRI.CENT=120, CONT.MAX=40.Place the set with Aging Test for more than 15 minutes.Activate the adjustment mode display of Fig. 1-1 andpress the channel button (01) on the remote control toselect "CUT OFF".Adjust the Screen Volume until a dim raster is obtained.
2-2: FOCUS
1.2.3.
Receive the monoscope pattern.Turn the Focus Volume fully counterclockwise once.Adjust the Focus Volume until picture is distinct.
2-3: WHITE BALANCE
NOTE: Adjust after performing CUT OFF adjustment.
Place the set with Aging Test for more than 10 minutes.Receive the white 100% signal from the PatternGenerator.Using the adjustment control, set the brightness andcontrast to normal position.Activate the adjustment mode display of Fig. 1-1 andpress the channel button (10) on the remote control toselect "R.BIAS".Using the VOL. UP/DOWN button on the remote control,adjust the R.BIAS.Press the CH. UP/DOWN button on the remote control toselect the "R.DRIVE", "B.DRIVE", "G.BIAS" or "B.BIAS".Using the VOL. UP/DOWN button on the remote control,adjust the R.DRIVE, B.DRIVE, G.BIAS or B.BIAS.Perform the above adjustments 6 and 7 until the whitecolor is looked like a white.
1.2.
3.
4.
5.
6.
7.
8.
1. Synchro Scope2. Digital Voltmeter
On-Screen Display Adjustment
In the condition of NO indication on the screen.Press the VOL. DOWN button on the set and theChannel button (9) on the remote control for more than2 seconds to appear the adjustment mode on thescreen as shown in Fig. 1-1.
1.
Fig. 1-1
Use the Channel UP/DOWN button or Channel button(0-9) on the remote control to select the options shownin Fig. 1-2.Press the MENU button on the remote control to endthe adjustments.
2.
3.
Prepare the following measurement tools for electricaladjustments.
FUNCTIONOSD HCUT OFFH.VCOH.PHASEV.SIZEV.SHIFTR.DRIVEB.DRIVER.BIASG.BIASB.BIASBRIGHT CENTBRIGHT MAXBRIGHT MIN
Receive the color bar pattern. (RF Input)Connect the oscilloscope to TP023.Activate the adjustment mode display of Fig. 1-1 andpress the channel button (22) on the remote control toselect "TINT".Press the VOL. UP/DOWN button on the remote controluntil the section "A" becomes as straight line.(Refer to Fig. 2-1)Connect the oscilloscope to TP022.Activate the adjustment mode display of Fig. 1-1 andpress the channel button (19) on the remote control toselect "COL.CENT".Press the VOL. UP/DOWN button on the remote controluntil the red color level is adjusted to 110 ±10% of thewhite level. (Refer to Fig. 2-2)Receive the color bar pattern. (Audio Video Input)Press the TV/VIDEO button on the remote control to set to the AV mode. Then perform the above adjustments2~7.
ELECTRICAL ADJUSTMENTS
D-2 13A26/13A26C
2-8: OSD HORIZONTAL
1.2.
Activate the adjustment mode display of Fig. 1-1.Press the VOL. UP/DOWN button on the remotecontrol until the difference of A and B becomesminimum. (Refer to Fig. 2-4)
BA
TV
00 OSD 23
Fig. 2-4
Receive the monoscope pattern.(RF Input)Using the adjustment control, set the brightness andcontrast to normal position.Activate the adjustment mode display of Fig. 1-1 andpress the channel button (13) on the remote control toselect "BRI.CENT".Press the VOL.UP/DOWN button on the remote controluntil the screen begin to shine.Press the TV/VIDEO button on the remote to set to theAV mode. Then perform the above adjustment 2~4..
1.2.
3.
4.
5.
2-9: BRIGHT MANUAL
Fig. 2-1
Fig. 2-2
2-5: HORIZONTAL PHASE
1.2.
3.
4.
Receive the monoscope pattern.Using the adjustment control, set the brightness andcontrast to normal position.Activate the adjustment mode display of Fig. 1-1 andpress the channel button (05) on the remote control toselect "H.PHAS".Press the VOL. UP/DOWN button on the remotecontrol until the SHIFT quantity of the OVER SCAN onright and left becomes minimum.
2-6: VERTICAL SIZE
1.2.
3.
4.
Receive the monoscope Pattern.Using the adjustment control, set the brightness andcontrast to normal position.Activate the adjustment mode display of Fig. 1-1 andpress the channel button (06) on the remote control toselect "V.SIZE".Press the VOL. UP/DOWN button on the remote controluntil the SHIFT quantity of the OVER SCAN on upsideand downside becomes 10 ± 2%.
2-7: VERTICAL SHIFT
1.2.
3.
4.
Receive the monoscope Pattern.Using the adjustment control, set the brightness andcontrast to normal position.Activate the adjustment mode display of Fig. 1-1and press the channel button (07) on the remotecontrol to select "V.SFT".Press the VOL. UP/DOWN button on the remotecontrol until the horizontal line becomes fit to thenotch of the shadow mask. (Refer to Fig. 2-3)
White 100% Red 110%
"A"
Receive an 70dB the color bar pattern.Activate the adjustment mode display of Fig. 1-1press the channel button (17) on the remote controlto select "CONT.MAX".Press the VOL. UP/DOWN button on the remote controluntil the contrast step No. becomes "43".Press the TV/VIDEO button on the remote control to set to the AV mode.Activate the adiustment mode display of Fig 1-1paess the channel button (17) on the remote controlto select"CONT.MAX".Press the VOL.UP/DOWN button on the remote controlunitil the contrast step No. becomes "52".Receive a broadcast and check if the picture is normal.
1.2.
3.
4.
5.
6.
7.
2-10: SUB CONTRAST
Shadow mask
��������������
�
Fig. 2-3
ELECTRICAL ADJUSTMENTS
D-3 13A26/13A26C
Please check if the fixed values of the each adjustmentitems are set correctly referring below. (RF/AV)
2-11: Confirmation of Fixed Value (step No.)
NO.041415161820
FUNCTIONH VCOBRIGHT MAXBRIGHT MINCONT CENTCONT MINCOLOR MAX
Adjust after performing adjustments in section 3-1.
1.
2.
3.
4.5.
Receive the green raster pattern from color bargenerator.Adjust the pair of purity magnets to center thecolor on the screen.Adjust the pair of purity magnets so the color at theends are equally wide.Move the deflection yoke backward (to neck side)slowly, and stop it at the position when the wholescreen is green.Confirm red and blue colors.Adjust the slant of the deflection yoke while watching thescreen, then tighten the fixing screw.
DEFLECTION YOKEDEFLECTION YOKE SCREWMAGNET SCREW
PURITY MAGNETS6 POLE MAGNETS4 POLE MAGNETS
Fig. 3-1
PURITY AND CONVERGENCEADJUSTMENTS
NOTE
3-1: STATIC CONVERGENCE (ROUGH ADJUSTMENT)
Tighten the screw for the magnet. Refer to the adjustedCRT for the position. (Refer to Fig. 3-1)If the deflection yoke and magnet are in one body,untighten the screw for the body.Receive the green raster pattern from the color bargenerator.Slide the deflection yoke until it touches the funnelside of the CRT.Adjust center of screen to green, with red and blue on thesides, using the pair of purity magnets.Switch the color bar generator from the green rasterpattern to the crosshatch pattern.Combine red and blue of the 3 color crosshatch patternon the center of the screen by adjusting the pair of4 pole magnets.Combine red/blue (magenta) and green by adjusting thepair of 6 pole magnets.Adjust the crosshatch pattern to change to whiteby repeating steps 6 and 7.
Turn the unit on and let it warm up for at least 30minutes before performing the following adjustments.Place the CRT surface facing east or west to reduce theterrestrial magnetism.Turn ON the unit and demagnetize with a Degauss Coil.
3-3: STATIC CONVERGENCE
1.
2.
3.
3-4: DYNAMIC CONVERGENCE
Adjust after performing adjustments in section 3-3.
1.
2.
Adjust the differences around the screen by movingthe deflection yoke upward/downward and right/left.(Refer to Fig. 3-2-a)Insert three wedges between the deflection yoke andCRT funnel to fix the deflection yoke.(Refer to Fig. 3-2-b)
R G B
RGB
Fig. 3-2-a
WEDGE WEDGE
WEDGE
WEDGE POSITION
Fig. 3-2-b
R G B
RGB
Receive the crosshatch pattern from the color bargenerator.Combine red and blue of the 3 color crosshatch patternon the center of the screen by adjusting the pair of4 pole magnets.Combine red/blue (magenta) and green by adjusting thepair of 6 pole magnets.
UPWARD/DOWNWARD SLANT RIGHT/LEFT SLANT
Adjust after performing adjustments in section 3-2.
NOTE
NOTE
CRT PCB
ELECTRICAL ADJUSTMENTS
4. ELECTRICAL ADJUSTMENT PARTS LOCATION GUIDE (WIRING CONNECTION)
CD101A
CP
802A
TU001
S501A
S501B
FB401
CD101B
AC
IN
.
CP401
CP802B
CP806
CP803B
CP801
R807
R803
SPEAKER
TP023
TP022
MAIN PCB
CRT
CD
801
DEGAUSS COIL
CP502
L503
CR
T DY
D-5
CP803A
J801
CD501
OSD
78
70
69
68
67
RGB Proc.2OSD SWCONTRAST BRIGHTNESS
I/OIICTIMINT
PWMAD
MCUCLK
VCXO
RGB OUTPUT Stage DRIVE CUT OFF HV BLK
Ver.Proc.Ver SYNC SEPVer.COUNT DOWNV RAMP
Q801
RED OUT
Q802
GREEN OUT
Q803
BLUE OUT
Q402
H. DRIVE
Q401
H. OUTPUT
51
45
46
9
HV
F
S
FB401
10
1
2
3
CRTV801
3 9 7
RGB
Heater
F 84
PUMP UP
AMP+
-
7 52 6
V-OUT ICIC401 STV9302B
VCC
RGB Proc.1RGB MATRIXCOLOR CONT
ROMRAM
38375758 16
Hor.Proc.SYNC SEPA/Hor. VCOHor.COUNT DOWNAFC-1/H COINCIDENTAFC-2 H PHASE