BASIC: SMH7185BG MODEL: SMH9207ST MODEL …031d26d.namesecurehost.com/mwd/SMH9207ST_XAA_sm.pdf6 2. Specifications 2-1 Features Product Features • Professional Design Samsung New

Refer to the service manual in the GSPN(see rear cover) for the more information.

1. Precaution2. ProductSpecification3. Disassembly and Reassembly4. Troubleshooting5. Exploded Views and Part List6. PCB Diagrams7. Wiring Diagrams8. Schematic Diagrams

BASIC: SMH7185BGMODEL: SMH9207STMODEL CODE: SMH9207ST/XAA

2

• Contents

1. Precaution . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .31-1 Safety precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .41-2 Special High Voltage Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5

2.Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .62-1 Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .62-2 Accessory . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .72-3 Table of Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8

3. Disassembly and Reassembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .93-1 Disassembly of Assembly Grille and Panel Outer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .93-2 Replacement of High Voltage Transformer and HVC and Base bottom . . . . . . . . . . . . . . . . . . . . . . . . . . . 113-3 Replacement of Magnetron . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .133-4 Replacement of Door Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .143-5 Replacement of Fuse . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .163-6 Replacement of Drive Motor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .163-7 Replacement of stirrer motor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .173-8 Removal of stirrer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .183-9-1 Replacement of Control Circuit Board (Power) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .193-9-2 Replacement of Control Circuit Board (Main) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .193-10 Replacement of Cooktop lamp . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .203-11 Replacement of Oven Light . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .21

4. Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .224-1 Error Code Numbering Rule . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .224-2 Error Code List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .224-3 Electrical Malfunction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .24

5. Exploded Views and Parts List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .275-1 Exploded Views . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .275-2 Main Parts List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .285-3 Door Parts List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .305-4 Control Parts List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .315-5 Standard Parts List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .32

6. PCB Diagrams . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .336-1 PCB Diagrams (ML9M,KEY-ML9,ML9P) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .336-2 PCB Diagrams (ML9M,KEY-ML9,ML9P) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .34

7. Wiring Diagrams . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .397-1 Wiring Diagrams . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .39

8. Schematic Diagrams . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .418-1 Schematic Diagrams (ML9-Main,Sub) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .41

3

1. Precaution

4

1. Precaution

Follow these special safety precautions . Although the microwave oven is completely safe during ordinary use, repair work can be extremely hazardous due to possible exposure to microwave radiation, as well as potentially lethal high voltages and currents .

1-1 Safety precautions ( )1. All repairs should be done in accordance with the

procedures described in this manual . This product complies with Federal Performance Standard 21 CFR

2. Microwave emission check should be performed to prior to servicing if the oven is operative .

3. If the oven operates with the door open :Instruct the user not to operate the oven and contact the manufacturer and the center for devices and radiological health immediately .

4. Notify the Central Service Center if the microwave leakage exceeds 5 mW/cm2 .

5. Check all grounds .6. Do not power the MWO from a “2-prong” AC cord .

Be sure that all of the built-in protective devices are replaced . Restore any missing protective shields .

7. When reinstalling the chassis and its assemblies, be sure to restore all protective devices, including: nonmetallic control knobs and compartment covers .

8. Make sure that there are no cabinet openings through which people --particularly children--might insert objects and contact dangerous voltages . Examples: Lamp hole,ventilation slots .

9. Inform the manufacturer of any oven foundto have emission in excess of 5 mW/cm2 ,Make repairs to bring the unit into compliance at no cost to owner and try to determine cause . Instruct owner not to use oven until it has been brought into compliance .

CENTRAL SERVICE CENTER10. Service technicians should remove their watches

while repairing an MWO .11. To avoid any possible radiation hazard,replace parts

in accordance with the wiring diagram . Also, use only the exact replacements for the following parts: Primary and secondary interlock switches, interlock monitor switch .

12. If the fuse is blown by the Interlock Monitor Switch: Replace all of the following at the same time: Primary, door sensing switch and power relay, as well as the Interlock Monitor Switch . The correct adjustment of these switches is described elsewhere in this manual . Make sure that the fuse has the correct rating for the particular model being repaired .

13. Design Alteration Warning: Use exact replacement parts only, i.e.,only those that are specified in thedrawings and parts lists of this manual . This is especially important for the Interlock switches, described above . Never alter or add to the mechanical or electrical design of the MWO . Any design changes or additions will void the manufacturer’s warranty . Always unplug the unit’s AC power cord from the AC power source before attempting to remove or reinstall any component or assembly .

14. Never defeat any of the B+ voltage interlocks . Do not apply AC power to the unit (or any of its assemblies) unless all solid-state heat sinks are correctly installed .

15. Some semiconductor (“solid state”) devices are easily damaged by static electricity . Such components are called Electrostatically Sensitive Devices (ESDs) . Examples include integrated circuits and field-effect transistors. Immediately before handling any semiconductor components or assemblies, drain the electrostatic charge from your body by touching a known earth ground .

16. Always connect a test instrument’s ground lead to the instrument chassis ground before connecting the positive lead; always remove the instrument’s ground lead last .

17. When checking the continuity of the witches or transformer, always make sure that the power is OFF, and one of the lead wires is disconnected .

18. Components that are critical for safety are indicated in the circuit diagram by shading, or .

19. Use replacement components that have the same ratings, especially for flame resistance and dielectric strength specifications. A replacement part that does not have the same safety characteristics as the original might create shock, fire or other hazards.

NOTE : Connect the oven to a 20A . When connecting the oven to a 15A,make sure that circuit breaker can operate .

5

1. Precaution

1-2 Special High Voltage Precautions

1. High Voltage Warning Do not attempt to measure any of the high voltages --this includes the filament voltage of the magnetron . High voltage is present during any cook cycle . Before touching any components or wiring, always unplug the oven and discharge the high voltage capacitor (See Figure 1-1)

2. The high-voltage capacitor remains charged about 30 seconds after disconnection . Short the negative terminal of the high-voltage capacitor to to the oven chassis . (Use a screwdriver .)

3. High voltage is maintained within specified limits by close-tolerance, safety-related components and adjustments . If the high voltage exceeds the specified limits, check each of the special components .

H . V . Diode

Short

H . V . Capacitor

PRECAUTIONThere exists HIGH VOLTAGE ELECTRICITY with high current capabilities in the circuits of the HIGH VOLTAGE TRANSFORMER secondary and filament terminals. It is extremely dangerous to work on or near these circuits with the oven energized . DO NOT measure the voltage in the high voltage circuit including filament voltage of magnetron.

PRECAUTIONServicemen should remove their watches whenever working close to or replacing the magnetron .

PRECAUTIONNever touch any circuit wiring with your hand nor with uninsulated tool during operation .

6

2.Specifications

2-1 Features

Product Features

• Professional Design

Samsung New OTR with Stainless Steel, it has professional look and the design matches great with other kitchen appliances, so that itprovidesharmoniouskitcheninteriorandfinallycompletestotalkitchen solution.

• Turbo vent

With 400CFM ventilation power, New OTR can keep the comfortable cooking condition by absorbing smoke and odor from cook-top. Moreover, it provides the silent condition that is equivalent noise level to other OTR with lower ventilation power.The Strongest power without additional noise!That’sthebenefityoucanfeelfromNewOTR!

• Big Interior capacity for convenience

With the 2.0 cu.ft capacity, it offers enough space to cook.The big capacity combined with 1,100 watts of output achieves superior cooking results.

• Sensor cook

Don’t worry about failure of your cooking!New OTR’s sensor technology offers the best dish. Only thing you need to do is just select the cooking menu, and then youwillbesatisfiedwiththecookingresultsbysensorcook.

• VFD display With more informative VFD display, the OTR helps you use all the function it has with ease.

7

2.Specifications

2-2 Accessory

Item Description Code No. Q’ty

TRAY COOKING DE74-20002A 1

ASSY-GUIDE ROLLER DE97-00637A 1

ASSY-HOOD DAMPER DE92-90242D 1

ASSY-HARD WARE DE92-90505E 1

FILTER AIR DE63-30011A 2

FILTER CHARCOAL DE63-00367D 1

RACK-WIRE DE75-00036B 1

8

2.Specifications

2-3TableofSpecifications

ItemsBasic Model New Model

AMV5206BAS SMH9207ST/XAAOven Cavity 2 .0 2 .0Controls 10 power levels, including defrost 10 power levels, including defrostTimer 99 minutes, 99seconds 99 minutes, 99secondsPower Source 120VAC, 60Hz 120VAC, 60HzPower consumption 1700 Watts 1650 Watts

Power Output 1150 Watts 1100 WattsOven Cavity

Dimensions(W x H x D inches)

207/8 x 931/32 x 149/16 221/32 x 107/8 x 147/8

Outside 297/8 x 161/2 x 1515/32 297/8 x 161/2 x 161/2

Shipping 333/8 x 1915/16 x 1913/32 333/8 x 205/32 x 1913/32

Net/Gross Weight 51 .6lbs / 62 .7lbs 52 .7lbs / 60 .6lbsExport Zone USA USA

9

3. Disassembly and Reassembly

MAGNETRON, MOTOR ASSEMBLY, VENT BLOWER AND HIGH VOLTAGE TRANSFORMEROven must be removed from wall.REMOVING OVEN FROM WALL (2 PEOPLE REQUIRED)Oven is hooked on metal tabs at bottom of wall mounting plate and to cabinet by (3) top cabinet bolts .

3-1 Disassembly of Assembly Grille and Panel Outer

Parts Explaination Photo Explaination

Grille

1. Disconnect oven power .

2. Remove Grille . 1) Remove 2 screws 2) Slide the Grille to the left, then pull it

straght out .

Panel Outer

1. Disconnect oven power .2. Remove Grille .3. Remove Screw .(7)

4. Remove Screw .(4)

10



Panel Outer




Explaination Photo

Explaination

8. Remove Panel Outer .

3-1 Disassembly of Assembly Grille and Panel Outer

11


3-2 Replacement of High Voltage Transformer and HVC and Base bottom


High voltage capacitor

1. Disconnect Oven Power .2. Remove Panel Outer .3. Discharge The High Voltage Capacitor .

ATTENTION : When discharge must become ground terminal of HVC and metal of around .

4. Remove screw .(1) 5. Disconnect the Lead Wire .

Base Bottom


2. Disconnect Lamp Housing .

3. Remove Base bottom .

HV Trans

1. Disconnect Oven Power .

2. Remove the Base bottom and Panel Outer .

3. Disassembly the Bracket Duct upper after remove screw .

12



HV Trans

4. Disconnect the Lead Wire .

5. Remove screw .(4)6. Take out the HV Trans .

3-2 Replacement of High Voltage Transformer and HVC and Base bottom

13


3-3 Replacement of Magnetron


Magnetron

Remove the magnetron including the shield case, permanent magnet, choke coils and capacitors (all of which are contained in one assembly) .1. Disconnect all lead wires from the

magnetron .

2. Remove nuts (4) securing the magnetron to the wave guide .

3. Take out the magnetron very carefully .

NOTE1: When removing the magnetron, make sure that it antenna does not hit any adjacentparts, or it may be damaged .

NOTE2: When replacing the magnetron, be sure to remount the magnetron gasket in the correct position and make sure the gasket is in good condition .

PRECAUTIONDuring replacement, be certain R .F . anode gasket is in place around anode stub .PERFORM MICROWAVE LEAKAGE TEST

14


3-4 Replacement of Door AssemblyParts Disassembly Photo Explaination

Removal of Door Assembly

1. Disconnect the lead wire .2. Open the Assembly Door by degree 90º3. Seperate lifting Assembly Door from Set .

Removal of Door C

4. Insert flat screwdriver into the gap between Door “A” and Door “C” to remove Door “C” .

• Becareful when handling Door “C” because it is fragile .

Removal of Key Door & Spring 5. Detach the spring and key door from Door .

15


Removal of Handle

4. Remove 2 screws, then handle is detached from Door “A” .

Removal of Door “E”

5. Following the procedure as shown in the figure, insert and bend a thin metal plate between Door “E” and Door “A” until you hear the ‘tick’ sound .

• Insertion depth of the thin metal plate should be 0 .5mm or less .

6. Remove 4 screw securing Door “E” to Door “A” .

PRECAUTIONPERFORM MICROWAVE LEAKAGE TEST

3-4 Replacement of Door Assembly

16


3-5 Replacement of Fuse


Fuse

The fuse is located on the noise filter.1. Disconnect power and remove grilleand

Assembly Control Box .2. Replace the fuse .3. When 20A fuse blows out by the operation

of interlock monitor switch failure, replace the primary interlock switch, secondary interlock switch, door sensing switch, interlock monitor switch and power relay .

4. When the above four switches operate properly, check if any other part such as the control circuit board, blower motor or high voltage transformer is defective .

3-6 Replacement of Drive Motor


Drive Motor

1. Disconnect power and remove Base bottom screws(5) .

2. Remove Base bottom and disconnect the turntable motor drive .

3. Remove turntable motor screws(1) and pull the turntable motor out .

4. When replacing the drive motor, be sure to remount it in the correct position with the coupler .

5. Connect all the leads to the drive motor .

Fuse

Fuse

17


3-7 Replacement of stirrer motor


Stirrer Motor

1. Disconnect power and remove Grille screws(3) .

2. Remove the bracket duct upper .

3. Disconnect the stirrer motor wire .

4. Remove stirrer motor screws(1) and after turn to arrow direction pull the stirrer motor .

18


3-8 Removal of stirrer


Stirrer

The stirrer is motor driver and located on the upper side of the cavity . The oven uses a top feed wave guide . The stirrer is located in the wave guide and the motor is located on the wave guide .

1. Disconnect power and open the door .

2. Remove the clip and turn the stirrer cover left .

3. Remove stirrer cover and the stirrer will come with it .

19


3-9-1 Replacement of Control Circuit Board (Power)Parts Explaination Photo Explaination

Removal of Control Box Assembly

1. Disconnect power and remove Grille .

2. Be sure to ground any static electric charge in your body and never touch the control circuit .

3. Remove a screw securing the control box assembly .

4. Disconnect the connectors from the control circuit board .

Removal of P .C .B Assembly(Sub)

1. Pull the lever end of the plastic fastener and remove the Flexible Printed Circuit(FPC) of membrane panel .

2. Remove screws (3) securing the control circuit board .

3. Lift up the control circuit board from the Ass’y control box .

4. When reconnecting the FPC connector, make sure that the holes on the connector are properly engaged with the hooks on the Plastic Fastener .

3-9-2 Replacement of Control Circuit Board (Main)Parts Explaination Photo Explaination

Removal of P .C .B Assembly(Main)

1. Remove the Door-E(15Page)2. Remove screws (3) securing the control circuit

board .3. Lift up the control circuit board from the Ass’y

control box .4. When reconnecting the FPC connector, make

sure that the holes on the connector are properly engaged with the hooks on the Plastic Fastener .

20


3-10 Replacement of Cooktop lampWhen replacing the night light, make sure that you are wearing gloves to avoid injury from the heat of the bulb .


Cooktop Lamp

1. Unplug the oven or turn off the power at the main power .

2. Remove the bulb cover, and mounting screws .

3. Replace the bulb with a 40 watt appliance bulb .

4. Replace the bulb cover and mounting screws .

5. Turn the power back on at the main power supply .

21


3-11 Replacement of Oven LightParts Explaination Photo Explaination

Oven Light

1. Disconnect Oven power .

2. Remove the Grille

3. Remove the bracket Duct upper by remove 1 screw .

4. Replace the bulb with a 40 watt appliance bulb .

22

4. Troubleshooting

4-1 Error Code Numbering Rule1. ERROR CODE NUMBERING RULE is applied to a microwave oven and an oven .(CMO, OTR, Grill, Convection,

Commercial etc .)2. All sensors and devices have their own number . ex) Gas Sensor = 1, Temp . Sensor = 2, . . .3. Of each device, No .1 and No .2 refer to “Open Error” (not sensed) and “Short Error”, respectively .4. This numbering rule has been applied to models to have been developed since January, 1, 2005 . (But, GE or

Customize model are excluded .)

DEVICE ERROR CASE0- Others 1- Open1- Gas Sensor 2- Short2- Temp . Sensor •3- Weight Sensor •4- Easy/PH Sensor •5- EEPROM

•••

4-2 Error Code List

Error Code Others (E-0X, Letter) Solution Page-SE- Key Short Error (10 seconds) Turn off set and restart . 21 Page

4. Troubleshooting

23

4. Troubleshooting

YES

NO

YES

NO

NO

YES

YES

NO

“- SE -” is displayed.

Perform the operation again and check if it is working properly.

S/W Error

Is a specific keynot recognized?

Is the key recognizedintermittently?

The membrane is defective.

Replace the Control Panel.

Is the key not recognizedat all?

After Power > On,does the symptom continue?

Replace the PCB.

4-2-1 Key Short Error

24

4. Troubleshooting

PRECAUTION1. CHECK GROUNDING BEFORE CHECKING FOR TROUBLE .2. BE CAREFUL OF THE HIGH VOLTAGE CIRCUIT .3. DISCHARGE THE HIGH VOLTAGE CAPACITOR .4. WHEN CHECKING THE CONTINUITY OF THE SWITCHES OR TRANSFORMER, DISCONNECT ONE

LEAD WIRE FROM THESE PARTS AND THEN CHECK CONTINUITY WITHOUT THE POWER SOURCE ON . TO DO OTHERWISE MAY RESULT IN A FALSE READING OR DAMAGE TO YOUR METER .

5. DO NOT TOUCH ANY PART OF THE CIRCUIT OR THE CONTROL CIRCUIT BOARD, SINCE STATIC DISCHARGE MAY DAMAGE IT . ALWAYS TOUCH GROUND WHILE WORKING ON IT TO DISCHARGE ANY STATIC CHARGE BUILT UP .

4-3 Electrical Malfunction

Oven is dead . (No display and no operation at all .)

Fuse is OKOpen or loose lead wire harness

Open thermal cutout (Magnetron)

Open low voltage transformer

Check fan motor when thermal cutout is defective.

Check Ass’y PCB when L.V.T is defective.

Check adjustment of primary, interlock monitor, power relay, door sensing switch.

NOTE 1: All of these switches must be replaced at the same time. (refer to adjustment instructions) Check continuity of power relay contacts and if it has continuity, replace power relay also.

NOTE: Large contact resistance will bring lower magnetron filament voltage and cause magnetron to lower output and/or intermittent oscillation.

NOTE 2: When H.V.Transformer is replaced, check diode and magnetron also.

Defective Ass’y PCB

Shorted lead wire harness

Defective primary latch switch (NOTE 1)

Defective monitor switch (NOTE 1)

Shorted H.V.Capacitor

Shorted H.V.Transformer (NOTE 2)

Oven does not accept key input

Key input is not in-Sequence

Open or loose connection of membrane key pad to Ass’y PCB

Shorted or open membrane panel

Refer to operation procedure.

Replace PCB main.Defective Ass’y PCB

Timer starts countdown but no microwave

oscillation

Off-alignment of latch switches

Open or loose connection of high voltage circuit especially magnetron filament circuit (NOTE)

Defective high voltage components H.V.Transformer H.V. Capacitor H.V.Diode, H.V.Fuse Magnetron

Adjust door and latch switches.

Check high voltage component according tocomponent test procedure and replace if it isdefective.

Open or loose wiring of power relay

Replace PCB main.

Defective primary latch switch

Defective power relay or Ass’y PCB

Oven does not accept key input (Program)























oscillation







Replace PCB main.



25

4. Troubleshooting

Timer starts countdown but no microwave oscillation .(No heat while oven lamp and fan motor turn on.)























oscillation







Replace PCB main.



Oven can program but timer does not start .

Oven can program but timer does

not start

Open or loose wiring of secondary interlock switch

Adjust door and interlock switches.

Off-alignment of primary interlock

Defective secondary interlock S/W

Turntable motor doesnot rotate.

Open or loose wiring of turntable motor.

Replace turntable motor.

Defective turntable motor

Oven stops operation during cooking

Open or loose wiring of primary interlock switch


Operation of thermal cutout (Magnetron)

Sparks

Metallic ware or cooking dishes touching on the oven wall

Inform the customer: Do not use any type of cookware with metallic trimming

Ceramic ware trimmed with gold or silver powder also causes sparks

Loud buzzing noisecan be heard

Loose fan and fan motor Tighten screws of fan motor.

Tighten screws of H.V.Transformer.

Replace H.V.Diode.

Loose screws on H.V.Transformer

Shorted H.V.Diode

Microwave output is low

Decrease in power source voltage Consult electrician.

Open or loose wiring of magnetron filament circuit. (Intermittent oscillation)

Aging of magnetron

Fan motor turns on when plugged in Loose wiring of door sensing switch Consult electrician.

Oven does notoperate and return to

the plugged in mode

Defective Ass’y PCB Replace PCB main.

Noise from theturntable motor whenit starts to operate.

Noise may result from the motor Replace turntable motor.

Uneven cooking Uneven intensity of microwave due to its characteristics

Wrap thinner parts of the food with aluminum foil.

se plastic wrap or cover with a lid.

Stir once or twice while cooking foods such as soup, cocoa, or milk.

Microwave output is low . (Oven takes longer time to cook food .)


not start













Sparks







Replace H.V.Diode.


Shorted H.V.Diode




Aging of magnetron



the plugged in mode








Fan motor turns on when plugged in .


not start













Sparks







Replace H.V.Diode.


Shorted H.V.Diode




Aging of magnetron



the plugged in mode








Oven does not operate and return to the plugged in mode .


not start













Sparks







Replace H.V.Diode.


Shorted H.V.Diode




Aging of magnetron



the plugged in mode








26

4. Troubleshooting

Loud buzzing noise can be heard .


not start













Sparks







Replace H.V.Diode.


Shorted H.V.Diode




Aging of magnetron



the plugged in mode








Turntable motor does not rotate .


not start













Sparks







Replace H.V.Diode.


Shorted H.V.Diode




Aging of magnetron



the plugged in mode








Oven stops operation during cooking .


not start













Sparks







Replace H.V.Diode.


Shorted H.V.Diode




Aging of magnetron



the plugged in mode








Sparks .


not start













Sparks







Replace H.V.Diode.


Shorted H.V.Diode




Aging of magnetron



the plugged in mode








Uneven cooking .


not start













Sparks







Replace H.V.Diode.


Shorted H.V.Diode




Aging of magnetron



the plugged in mode








Noise from the turntable motor when it starts to operate .


not start













Sparks







Replace H.V.Diode.


Shorted H.V.Diode




Aging of magnetron



the plugged in mode








27

5. Exploded Views and Parts List

5-1 Exploded Views

M060

U008

M061T017

T001

T030

P016

P015

M303

P086 402

M036

P034

P025P024P039

M030

U003

P030

P124

M049

H024

M024

P032

P001

T036

U012U005

U007

U004 U003U003

M036

M030

M030

M048M155

P121

M049P059

M034

M035 M030

B009

A161A161

A161B006

M023 P109

M018

M017

M039 M042

M206

M041

M040

M001

M015

P012

P007

M038

U001

M087

M059

M059

C081

B022

P106M068

M067

28


No. Code No. Description Specification Q’ty SA/SNA Remark

A161 3405-001033 SWITCH-MICRO 125/250VAC 16A,200GF,SPSTNC 1 SA -

A161 3405-001034 SWITCH-MICRO 125/250VAC,16A,200GF,SPST-N 2 SA -

B006 DE66-00168A LATCH-BODY MODULAR-2,PP,-,-,-,-,- 1 SA -

B009 DE66-90106B LEVER-SWITCH LOWER PP,T1 .4,-,-,2 .0g,OTR 1 SA -

B022 DE96-00414A ASSY BODY LATCH RVM-1625BJ,- 1 SA -

C081 DE66-20095B BUTTON-LOCK -,-,OTR5,-,-,TB53) 1 SA -

H018 DE31-90051A BLADE-FAN P .P,T,D130,-,-,-,- 1 SA -

H024 DE60-30015A NUT-FLANGE M5,P0 .8,MSWR10,FEFZY,-,-,-,-, 4 SA MGT

M001 DE64-00754J PANEL-OUTER MAYTAG2 .0,SECC,T0 .4,-,-,-,BL 1 SA -

M015 DE96-00218A ASSY-POWER CORD OTR9,120V60HZ,GE,SJT3/14 1 SA -

M017 DE96-00400D ASSY NOISE FILTER SN-UF12D,250V/20A,SEAR 1 SA -

M023 DE31-00044B MOTOR FAN SMF-U4205A,-,-,-,-,120V/60HZ,2 1 SA -

M024 DE31-00029C MOTOR VENTILATION SMV-460UA1-AL,-,120V,6 1 SA -

M030 DE47-20007A THERMOSTAT PW-2N(160/60)187Z,250V7 .5A,16 1 SA MGT

M030 DE47-20059A THERMOSTAT PW-2N(8XV),125V15A,V,120/0,23 1 SA -

M030 DE47-20034A THERMOSTAT 40/70,M5,-,-,-,-,-,- 1 SA -

M030 DE47-20059A THERMOSTAT PW-2N(8XV),125V15A,V,120/0,23 1 SA -

M034 DE67-00213A COUPLER MT2 .0,PPS,-,-,-,- 1 SA -

M035 OM75P(10)ESGN ASSY-MGT 1 SA -

M036 4713-001013 LAMP-INCANDESCENT 130V,-,40W,ORG,E17/20, 1 SA -

M036 4713-001013 LAMP-INCANDESCENT 130V,-,40W,ORG,E17/20, 2 SA -

M038 DE26-00126B TRANS H .V SHV-U1870D,120V,60HZ,2545/2385 1 SA -

M039 2501-001011 C-OIL 910nF,2100V,BK,54x35x75mm,20mm 1 SA -

M040 DE61-00115A BRACKET-HVC SMH7175,SECC,T0 .6,-,-,-,- 1 SA -

M041 DE91-70063D ASSY-HVD HV03-12,MWO-GE,RED 1 SA -

M042 DE59-00002A DIODE-H .V 2CL4512H,450mA, 13KV,MWO ALL, 1 SA -

M048 DE61-00905A BASE-PLATE MAYTAG2 .0,SECC,T0 .6,-,-,-,- 1 SA -

M049 DE31-10172A MOTOR-SYNCHRONOUS M2HJ24Z709,ST-16F,21V, 1 SA TURNTABLE

M049 DE31-10173A MOTOR-SYNCHRONOUS M2HJ29A709,ST-16F,21V, 1 SA STIRRER

M059 DE61-00375A HOLDER-RACK OTR-1 .5CUFT,PP,-,-,-,-,- 4 SA -

M060 DE92-90505E ASSY-HARD WARE SMH7175,-,-,- 1 SA -

M061 DE63-00367D FILTER-CHARCOAL MODULAR-2,AL,CARBON,T9,W 1 SA -

M067 DE94-02100A ASSY GRILLE SMH9207,PC,STS 1 SA -

M068 DE64-02216A GRILLE SMH9207,PC,-,-,-,-,BLK,- 1 SA -

M087 DE71-60121A COVER-STIRRER -,PP,T2 .0,W7,L198,-,85G,- 1 SA -

M155 DE97-00677A ASSY-BASE PLATE AMV5206,-,BASE-PLATE T0 . 1 SA -

M206 DE96-00269A ASSY-HVC SMH7175,0 .91UF HVC 1 SA -

M303 DE97-00366A ASSY-DUCT UPPER SMH7175,SENSOR+HALOGEN,- 1 SA -

P001 DE94-02101A ASSY STIRRER SMH9207,ALP T0 .5 1 SA -

P007 DE70-00378A PLATE-MOUNTING SMH7175,SGCC ,-,T0 .6,W130 1 SA -

P012 DE92-90242D ASSY-HOOD DAMPER JVM-1870,JVM250BL OTR4, 1 SA -

P015 DE97-00411A ASSY-BKT DUCT UPPER SMH7175BC,BKT-DUCT U 1 SA -

P016 DE61-00410A BRACKET-DUCT UPPER SMH7175,SECC,T0 .5,W20 1 SA -

P024 DE32-60011A SENSOR-GAS ST-MWO,-,-,-,-,-,- 1 SA -

5-2 Main Parts List(S.N.A : SERVICE NOT AVAILABLE)

29



P025 DE61-90111A HOLDER-SENSOR -,POM(DURACON-M90-02),-,-, 1 SA -

P030 DE59-50002A CAPACITOR-MOTOR SH-M 10UF,220V10UF,-,DMB 1 SA -

P032 DE92-90508A ASSY-HOLDER NUT OTR6,-,-,-,-,- 1 SA -

P034 DE97-00371A ASSY-DUCT UPPER(SUB) SMH7175,D/UPPER+GAS 1 SA -

P039 DE67-00168A DUCT-UPPER SMH7175,PP,T2 .0,BLK,-,-,- 1 SA -

P059 DE63-00419A COVER-FRONT MAYTAG2 .0,SECC,T0 .6,-,-,-,MA 1 SA -

P086 DE61-01008A BRACKET-BARRIER MHC4/5,SECC,0 .5,-,-,-,- 1 SA -

P106 DE63-00601A EARTH-GRILLE SMH9207,STS301,T0 .15,-,-,-, 1 SA -

P109 DE63-00141B COVER-MOTOR AMV5206BAB,PP(V0 ),-,-,-,-,- 1 SA -

P121 DE61-00411B BRACKET-DUCT REAR NEW WAVE / MT 2 .0,SECC 1 SA -

P124 DE60-30063A NUT-MOUNTING -,M6 .3,S10C,ZNC,YEL,-,-,-,- 2 SA -

T001 DE74-20002A TRAY-COOKING GLASS,T6,-,- 1 SA -

T017 DE97-00637A ASSY-GUIDE ROLLER MT2 .0 REGULAR,-,-,- 1 SA -

T030 DE75-00036B RACK-WIRE SMH7175,SNCR,-,W315,-,-,-,D4 1 SA -

T036 DE31-00059A BLADE-STIRRER SMH9207,ALP1050,-,-,-,T0 .5 1 SA -

U001 DE94-02136A ASSY-BASE BOTTOM SMH7174BE,BLK,-,- 1 SA -

U003 DE47-00006A HOLDER-LAMP 250V,75W,250X187 2POLE,OTR 1 SA -

U003 DE47-00006A HOLDER-LAMP 250V,75W,250X187 2POLE,OTR 2 SA -

U004 DE61-00407A BRACKET-BOTTOM LAMP SMH7175,SECC,T0 .4,-, 1 SA -

U005 DE64-00911A GLASS-COOKTOP LAMP SMH7175,TEMP-GLASS,T2 1 SA -

U007 DE61-01179B BASE-BOTTOM MAYTAG2 .0,SECC,T0 .4,-,-,BLK, 1 SA -

U008 DE63-30011A FILTER-AIR SMH7175,AL-MESH,T2 .0,W150,L34 2 SA -

U012 DE63-00137B COVER-GLASS COOKTOP SMH7175,SECC,T0 .5,W9 1 SA -

5-2 Main Parts List (Continued)(S.N.A : SERVICE NOT AVAILABLE)

30


(S.N.A : SERVICE NOT AVAILABLE)


C004 DE34-00333A SWITCH MEMBRANE SMH9207ST/XAA,PC,BLACK 1 SA -

D002 DE64-02217A DOOR-A SMH9207,PC,-,-,-,-,BLK,- 1 SA -

D003 DE64-02226A SCREEN-DOOR SMH9207,REINFORCE GLASS,T3 .2 1 SA -

D004 DE94-01471B ASSY DOOR-E MAYTAG2 .0,-,COATING 1 SA -

D005 DE01-00127A FILM-DOOR JVM-1860,POLYESTER,-,L479,T0 .0 1 SA -

D006 DE64-00759A DOOR-C SMH7175,PP,T1 .5,-,-,-,BLK,- 1 SA -

D007 DE61-00048A SPRING-KEY BLUING,HSWR,PI1 .95,D8 .75,L43 1 SA -

D011 DE64-01308A DOOR-KEY MODULAR-2,POM,-,-,-,-,BLK,- 1 SA -

D037 DE94-02096A ASSY DOOR A SMH9207,PC,STS 1 SA -

D046 DE67-00250A CAP-DOOR A SMH9207,PC,-,-,-,BLK,- 1 SA -

D049 DE94-02095A ASSY DOOR SMH9207,PC,STS 1 SA -

D063 DE64-02220A HANDLE-BASE UPPER SMH9207,PC,-,-,-,-,BLK 1 SA -

D064 DE64-02243A HANDLE-BASE LOWER SMH9207,PC,-,-,-,-,BLK 1 SA -

D073 DE63-00600A EARTH-DOOR SMH9207,STS301,T0 .15,-,-,-,- 1 SA -

Z779 DE64-02221A INLAY-DOOR SMH9207,STS430,T0 .4,-,-,-,HAI 1 SA -

D004

D006

D007

Z779

D064

C004

D063

D011

D005

D046

D003

D002

D037

D049

5-3 Door Parts List

31


(S.N.A : SERVICE NOT AVAILABLE)


C005 DE64-02218A CONTROL-PANEL SMH9207,PC,-,-,-,-,BLK,- 1 SA -

C010 DE64-02219A BUTTON-SELECT SMH9207,PC,-,-,BLK,- 1 SA -

C073 DE94-02099A ASSY BRACKET C/PANEL SMH9207,SECC,T0 .4 1 SA -

C128 DE63-00603A EARTH-CONTROL SMH9207,STS301,T0 .15,-,-,- 1 SA -

C005 C010

C073

C128

5-4 Control Parts List

32



1-1 6002-000643 SCREW-TAPPING TH,+,2S,M4,L10,ZPC(YEL),SW 2 SNAC .FRONT+C .

UPPER,CVT FRONT+B .PLATE

1-1 6002-001173 SCREW-TAPPING FH,+,2S,M4,L12,ZPC(BLK),MS 8 SNA GRILLE,O/PANEL

1-1 6003-001568 SCREW-TAPTITE FH,TORX,-,B-TITE,M4,L14,NI 2 SNA BODY LATCH

1-1 6006-001170 SCREW-ASSY TAPP WS,TH,+,M4,L10,ZPC(YEL) 2 SA N .FILTER E .& BKT .HVC,P .CORD

1-1 DE60-10045A SCREW-TAP PH -,-,FEFZY,-,PH,M3,-,L6,-,- 2 SA MGT-TCO

1-1 DE60-10051A SCREW-TAP PH -,-,MSWR,-,PH,M4,-,L6,-,- 2 SASTIRRER

MOTOR,TURNTABLE MOTOR

1-1 DE60-10062A SCREW-TAP TH -,-,FEFZB,-,TH,M4,-,L12,-,- 2 SNA BRACKET D/UPPER,CONTROL BOX

1-1 DE60-10067A SCREW-TAP TH -,-,FEFZB,2-SLOT,TH,M4,-,L8 9 SABASE BOTTOM,P .

OUTER+V .MOTOR,PANEL OUTER

1-1 DE60-10080A SCREW-WASHER -,-,-,-,M5,L12,-,2S,-,- 3 SA HVT

1-1 DE60-10082I SCREW-A -,-,-,-,2S-4X10,FEFZY,-,-,-,- 16 SA

B .PLATE & CVT .BACK,BKT DUCT

REAR,DUCT UPPER,FAN

MOTOR,MOUNTING PLATE,PANEL

OUTER,VENT-MOTOR

1-1 DE60-30015A NUT-FLANGE M5,P0 .8,MSWR10,FEFZY,-,-,-,-, 4 SA MGT

1-1 DE92-90508A ASSY-HOLDER NUT OTR6,-,-,-,-,- 1 SA -

1-2 DE60-10111A SCREW-LAG -,-,-,-,MSWR,W1/4X50,-,-,-,- 1 SNA -

1-2 DE60-20022A BOLT-TOGGLE MSWR,W3/16X75,-,-,-,-,-,-,- 3 SNA -

1-2 DE60-20066A BOLT-FLAT UNF1/4,L110,MSWR10,-,-,OTR6,-, 3 SNA -

1-2 DE60-30022A NUT-TOGGLE SBC1,ZPC2,WHT,-,-,-,-,-,- 3 SNA -

1-2 6001-002033 SCREW-MACHINE TH,+,-,M4,L16,ZPC(BLK),SWR 2 SNA HANDLE + DOOR E

1-2 6002-000630 SCREW-TAPPING PH,+,2S,M3,L8,ZPC(YEL),SWR 2 SNA PCB

1-2 6006-001170 SCREW-ASSY TAPP WS,TH,+,M4,L10,ZPC(YEL) 4 SA DOOR-A + DOOR-E

1-2 DE60-10082I SCREW-A -,-,-,-,2S-4X10,FEFZY,-,-,-,- 1 SA MEM + E/DOOR

1-2 6002-000630 SCREW-TAPPING PH,+,2S,M3,L8,ZPC(YEL),SWR 3 SNA PCB

1-2 6006-001170 SCREW-ASSY TAPP WS,TH,+,M4,L10,ZPC(YEL) 1 SA ASSY DIODE

1-2 DE60-10067A SCREW-TAP TH -,-,FEFZB,2-SLOT,TH,M4,-,L8 1 SA -

1-2 DE60-10045A SCREW-TAP PH -,-,FEFZY,-,PH,M3,-,L6,-,- 1 SA BT-TCO

1-2 6002-001004 SCREW-TAPPING TH,+,2,M4,L30,ZPC(YEL),SWR 2 SA -

1-2 DE60-10082I SCREW-A -,-,-,-,2S-4X10,FEFZY,-,-,-,- 1 SA N/FILTER SCREW

1-3 DE60-30063A NUT-MOUNTING -,M6 .3,S10C,ZNC,YEL,-,-,-,- 2 SA -

5-5 Standard Parts List(S.N.A : SERVICE NOT AVAILABLE)

33

6. PCB Diagrams

6-1 PCB Diagrams (ML9M)(This Document can not be used without Samsung’s authorization)

1

23

No .

Parts

Num

berP

art Nam

eFunction and R

ule

1C

N01

MA

IN &

PO

WE

R P

BA C

onnectorC

onnect Main and P

ower P

BA

2C

N02

Mem

brane switch C

onnector_LA Term

inal for Connecting w

ith Left Mem

brane Sw

itch3

CN

03M

embrane sw

itch Connector_R

A Terminal for C

onnecting with R

ight Mem

brane Sw

itch

34

6. PCB Diagrams

6-2 PCB Diagrams (ML9M)(This Document can not be used without Samsung’s authorization)

CN

011)R

Y-POW

ER-L

2)RY-PO

WER

-H3)R

Y-INR

USH

4)GS

5)RY-BR

IGH

T6)KEY7-AD7)R

Y-SPARE

8)VFDFILAM

ENT1

9)RY-N

IGH

T10)VFD

FILAMEN

T211)R

Y-VENT-H

12)RY-O

PTION

13)RY-VEN

T-M

14)-34V15)R

Y-V_DO

OR

16)GN

D17)BU

ZZER18)G

ND

19)RY-VEN

T-L20)+5V21)R

Y-TT22)+5V23)IN

T24)TC

O-S

25)RY-M

AIN26)STB

CN

021)N

OC

ON

NEC

TION

2)KEYIN

-63)KEY

IN-5

4)KEYIN

-45)KEY

IN-3

6)KEYIN

-27)KEY

IN-1

8)KEYO

UT-9

9)KEYO

UT-8

10)KEYO

UT-7

11)KEYO

UT-6

12)KEYO

UT-5

13)KEYO

UT-4

14)KEYO

UT-3

15)KEYO

UT-2

16)KEYO

UT-1

CN

031)N

OC

ON

NEC

TION

2)KEYIN

-63)KEY

IN-5

4)KEYIN

-45)KEY

IN-3

6)KEYIN

-27)KEY

IN-1

8)KEYO

UT-9

9)KEYO

UT-8

10)KEYO

UT-7

11)KEYO

UT-6

12)KEYO

UT-5

13)KEYO

UT-4

14)KEYO

UT-3

15)KEYO

UT-2

16)KEYO

UT-1

35

6. PCB Diagrams6. PCB Diagrams

6-1 PCB Diagrams (KEY-ML9)(This Document can not be used without Samsung’s authorization)

No .

Parts

Num

berP

art Nam

eFunction and R

ule

1C

N01

Pow

er PB

A Connector

A Terminal for C

onnecting with P

ower P

BA

36


6-2 PCB Diagrams (KEY-ML9)(This Document can not be used without Samsung’s authorization)

C N 011) + 5V2) K E Y 7-A D3) G N D

37


6-1 PCB Diagrams (ML9P)(This Document can not be used without Samsung’s authorization)

12

56

43

78

91

1

13

1415

16

17

1

No .

Parts

Num

berP

art Nam

eFunction and R

ule

1R

Y01

Main R

elay Fan, Lam

p, T/T Control

2R

Y02

Inrush Relay

Inrush Electric C

urrent Decrease

3R

Y03

Pow

er High R

elayM

W P

ower C

ontrol(High P

ower)

4R

Y04

Pow

er Low R

elayM

W P

ower C

ontrol(Low P

ower)

5R

Y05

Bright R

elayTurn on H

igh Light6

RY

06N

ight Relay

Turn on Low Light

7R

Y07

Spare R

elay(for future use)S

pare Relay(for future use)

8R

Y08

Turn Table Relay

Turn on Turn Table9

RY

09Vent Low

Relay

Turn on Low Ventilation

10R

Y10

Vent Mid R

elayTurn on M

id Ventilation11

RY

11Vent H

igh Relay

Turn on High Ventilation

12C

N01

Pow

er & R

elay Connector

Connect P

ower supply and R

elay Contact(Inrush, B

right, Night, S

pare)13

CN

02P

ower &

Relay C

onnectorC

onnect Pow

er supply and Relay C

ontact(Vent High/M

id/Low, Turn Table, M

ain)14

CN

03G

as Sensor C

onnectorA Term


ith Gas S

ensor15

CN

04D

oor switch S

ensing Connector

A Terminal for C

onnecting with D

oor Sw

itch 16

CN

05M

AIN

& P

OW

ER

PB

A Connector

Connect M

ain and Pow

er PB

A17

CN

6D

ome S

witch C

onnectorA Term


ith Dom

e Sw

itch

38


6-2 PCB Diagrams (ML9P)(This Document can not be used without Samsung’s authorization)

R Y 031) P O W E R R E LA Y C O N TA C T1(H V T P O W E R 1)

A C P O W E R N E U TA L (A C 98V ~ 144V )2) P O W E R R E LA Y C O N TA C T2(H V T P O W E R 2)

R Y 041) P O W E R R E LA Y C O N TA C T1(H V T P O W E R 1)

A C P O W E R N E U TA L (A C 98V ~ 144V )2) P O W E R R E LA Y C O N TA C T2(H V T P O W E R 3)

C N 011) A C P O W E R (LIV E )2) N O P IN3) IN R U S H4) N O P IN5) B R IG H T / N IG H T6) N O P IN7) S P A R E

C N 021) V E N T H IG H2) N O P IN3) V E N T M ID4) N O P IN5) V E N T LO W6) N O P IN7) TU R N TA B LE8) N O P IN9) M A IN

C N 031) G A S S E N S O R (S 1)2) G A S S E N S O R (S 2)3) G A S S E N S O R (H 1)4) G A S S E N S O R (H 2)

C N 041) D O O R S W ITC H2) G N D3) D O O R S W ITC H4) TC O5) G N D

C N 61) + 5V2) K E Y 7-A D3) G N D

C N 051) R Y -P O W E R -L2) R Y -P O W E R -H3) R Y -IN R U S H4) G S5) R Y -B R IG H T6) K E Y 7-A D7) R Y -S P A R E8) V FD FILA M E N T19) R Y -N IG H T10) V FD FILA M E N T211) R Y -V E N T-H12) R Y -O P TIO N13) R Y -V E N T-M

14) -34V15) R Y -V _D O O R16) G N D17) B U ZZE R18) G N D19) R Y -V E N T-L20) + 5V21) R Y -TT22) + 5V23) IN T24) TC O -S25) R Y -M A IN26) S TB

39

7. Wiring Diagrams

7-1 Wiring Diagrams(This Document can not be used without Samsung’s authorization)

40

7. Wiring Diagrams

7-1 Wiring Diagrams(This Document can not be used without Samsung’s authorization)

41

8. Schematic Diagrams

8-1 Schematic Diagrams (ML9-Main)(This Document can not be used without Samsung’s authorization)

CO

NN

EC

TING

WITH

SU

B P

BA

ME

MB

RA

NE

EM

CR

DO

OR

& TC

O

SP

AR

E

KE

Y-C

ON

TRO

L

RE

SE

T

CLO

CK

SA

VE

GA

S S

EN

SO

R

MIC

OM

BU

ZZER

OP

TION

DIS

PLA

Y

R05

4.7KR

04

DG

ND

4.7K

OR

022K

+5V

D03

1N4148M

D02

1N4148M

1N4148M

-34V

D01

+5V

C10

10uF

R03

4.7K

2K OR

01

R13

4.7K

+5V

TR101

KR

C246

R21 47K

F2

D09

47KR22

D08

1N4148M

1N4148M

D07

1N4148M

1N4148M

D06

DG

ND

F1

R09

47K

5678910111213141516 234

89

12516HS

-16C

N03

1

13141516 234567 1101112

P2

P3

26

P4

27

P5

28 29P

6

P7

30 31P

8

P9

32

12516HS

-16C

N02

5N

C

P1

24 33P

10

34P

11

35P

12

P13

36 37P

14

P15

38 39P

16

P17

4025

5G6G18

7G17

8G16

9G15

1F11

2F12F133

42F21

43F22F2344

121113G

1014G

915G

816G

717G

18G6 23

1G2G2221

3G4G2019

VFD33-1802FDSP1

10G1413

11G

12G

74 75 76 4

10 13 3938

870 479 8

58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 7342 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57

12523252627181722772015246

4133 34 35 36 37

1619282131307980 11 12 14

TMP

88PU

74FIC

01

29 3 32

R02

47K

2K R01

C03

100nF

+5V10uFC

01

100nFC

08

ELM

7533CB

A-S

IC02

DG

ND

34567891819 220212223242526 11011121314151617CN

01Y

DA

W200-26

C04

100nF

IC03

24LC04B

R06

10K

TR102

KR

C246

CN

04100nF

+5V

1M R23

DG

ND

100nFC

06

C09

10uF

4.7KR

08

4.7KR

12

1nFC15

XTL1

R07

12.5MH

z

100nF

4.7K

DG

ND

C07

1N4148M

D10

C02

100nF

+5V+5V

-34V

R10

47K

F1F2

C14 1nF

1nFC13

C12 1nF

1nFC11

C16 1nF

100nFC

05

4.7K

R14

R11

4.7K

4.7K

R16

R15

4.7K 1N4148M

D05

D04

1N4148M

R20

47KR19

47K

R18 47K

RY

-PO

WE

R-H

RY

-TT

RY

-NIG

HT

RY

-SP

AR

E

RY

-INR

US

H

RY

-PO

WE

R-L

RY

-VE

NT-H

47KR17

INT

STB

RY

-V_D

OO

R

TCO

-S

BU

ZZER

RY

-VE

NT-H

RY

-SP

AR

E

RY

-INR

US

H

RY

-PO

WE

R-L

RY

-PO

WE

R-H

RY

-VE

NT-L

RY

-TT

RY

-NIG

HT

RY

-OP

TION

RY

-VE

NT-M

RY

-MA

IN

RY

-BR

IGH

T

GS

KE

Y7-A

D

RY

-OP

TION

RY

-VE

NT-M

RY

-MA

IN

RY

-BR

IGH

T

RY

-VE

NT-L

VFD

-12G

VFD

-11G

VFD

-10G

KE

Y1

KE

Y2

KE

Y3

KE

Y4

KE

Y5

KE

Y6

KE

Y-1

KE

Y-2

KE

Y-3

KE

Y-4

KE

Y-5

KE

Y-6

GS

GA

S-S

KE

Y7-A

D

KE

Y-6

KO

-1

KO

-2

KO

-3

KO

-4

KO

-5

KO

-6

KO

-7

KO

-8

KO

-9

VFD

-18G

VFD

-17G

VFD

-16G

VFD

-15G

VFD

-14G

VFD

-13G

KE

Y-4

KE

Y-5

KE

Y-6

KO

-1

KO

-2

KO

-3

KO

-4

KO

-5

KO

-6

KO

-7

KO

-8

KO

-9

KE

Y-1

KE

Y-2

KE

Y-3

KE

Y-4

KE

Y-5

C-S-O

OP

TION

-1

OP

TION

-2

RY

-V_D

OO

R

TCO

-S

BUZZER

KO

-1

KO

-2

KO

-3

KO

-4

KO

-5

KO

-6

KO

-7

KO

-8

KO

-9

KE

Y-1

KE

Y-2

KE

Y-3

INT

RE

SE

T

STB

DO

OR

TCOBZ

GA

S-S

C-S

-I

C-S

-O

SC

L

SD

A

OP

TION

-1

OP

TION

-2

DO

OR

TCO

BZ

C-S

-I

VFD

-2S

VFD

-1S

VFD

-1G

VFD

-2G

VFD

-3G

VFD

-4G

VFD

-5G

VFD

-6G

VFD

-7G

VFD

-8G

VFD

-9G

VFD

-10G

VFD

-11G

VFD

-12G

VFD

-13G

VFD

-14G

VFD

-15G

VFD

-16G

VFD

-17G

VFD

-18G

NP

2

NP

1

KE

Y1

KE

Y2

KE

Y3

KE

Y4

KE

Y5

KE

Y6

VFD

-4G

VFD

-5G

VFD

-6G

VFD

-7G

VFD

-8G

VFD

-9G

SD

A

SC

L

RESET

VFD

-17S

VFD

-16S

VFD

-15S

VFD

-14S

VFD

-13S

VFD

-12S

VFD

-11S

VFD

-10S

VFD

-9S

VFD

-8S

VFD

-7S

VFD

-6S

VFD

-5S

VFD

-4S

VFD

-3S

VFD

-18G

VFD

-17G

VFD

-16G

VFD

-15G

VFD

-14G

VFD

-13G

VFD

-11G

VFD

-12G

VFD

-10G

VFD

-17S

VFD

-16S

VFD

-15S

VFD

-14S

VFD

-13S

VFD

-12S

VFD

-11S

VFD

-10S

VFD

-9S

VFD

-8S

VFD

-7S

VFD

-6S

VFD

-5S

VFD

-4S

VFD

-3S

VFD

-2S

VFD

-1S

VFD

-1G

VFD

-2G

VFD

-3G

42

8. Schematic Diagrams8. Schematic Diagrams

8-2 Schematic Diagrams (ML9-Sub)(This Document can not be used without Samsung’s authorization)

D02

1N4148M

D01

1N4148M

OP

TION

PO

WE

R R

ELA

Y

SE

NS

OR

OP

TION

SE

NS

OR

: JUM

PE

R

VE

NT-H

IGH

MA

IN

PO

WE

R-H

IGH

INR

US

H

BR

IGH

T

T/T

1. DE

C : IN

SE

RT

PO

WE

R S

UP

PLY

INTE

RR

UP

T

GA

S S

EN

SO

R

SP

AR

E

2. HK

E : D

ELE

TE

N/S

EN

SO

R : U

F4007

NIG

HT

RE

LAY

CO

NTR

OL

PO

WE

R-LO

W

VE

NT-M

ID

VE

NT-LO

W

678920212223242526 34510111213141516171819 2

R02

51K

YD

W200-26C

N05

1

R919

220

ZNR

10110D

471

KR

C246MTR

04

-34V

+5V

F1F2

470

TR05

KR

C246M

+5VR12

+5V

4.7K

R05

KR

C246M

TR13

R04

4.7K

BZ01CBE2220BA

D106

SB

140

C102

22uF

7 89 1011

C101

22uF

ST101

ST-S

M9G

V

1 23 4

6

C104

DU

12D1-1P

RY

04

10uF

TR102

KR

A226-A

TTR

101

1N4148M

KR

A226-A

T

D06

C03

C02

100nF10uF

TR08

KR

C246M

D10

1N4148M

G5T-1A

-12VD

CR

Y10

KR

C246MTR

10

+5V

RY

01G

5T-1A-12V

DC

200KR

10

R101

100K

+5V

4

E1

S5

56S

6S

77

S8

8

1N4007

D105

IC101

TNY

276P

B2

D

1 3 5 7 9

CN02SMW250-09AV_RED

RY

08G

5T-1A-12V

DC

G5T-1A

-12VD

CR

Y07

KR

C246MTR

07

4.7K

L101

R16

-34V

1mH

CN6SMW250-03V_WHT

123

R105

1K

PC

817P

C01

43

12

43

12

+5V

PC

817P

C101

G5T-1A

-12VD

CR

Y09

G5T-1A

-12VD

CR

Y05

R13

47K

PTC

101

R11

1K

1N4007

D103

33ohm

+12V

1N4007

D11

SMW250-05V(RED)

31245

+12V

DG

ND

+5V

CN04

KIA

75S358

VCC

VEE

+5V+5V

IC04

D10

1N4007

D08

1N4148M

D09

1N4148M

1N4148M

D05

1N4148M

D104

1N4007

D03

KR

C246M

TR03

TR12

KR

A226-A

T

100KR

06

KR

C246MTR

09

TR103

KR

C246M

R106

2K

100KR

08

+5V-1

+5V-1

D101

1N4007

19.1KR

07P

TC2

33ohm26.1KR

09

R103

1K

DG

ND

D108

UF4007

D110

UF4007

3.9uHL102

RY

06

KR

C246MTR

06

470uFC

105

G5T-1A

-12VD

C

470uFC

106U

F4007

D109

UF4007

100

D107

R102

R17

100

+5V

1nFC

103

1N4148M

+12V

D07

1N4007

D102

R15

4.7K

OJ101

4.7K

R14

10K

OR

012K

R03

R01

51K

CN03SMW250-04V_RED

1 2 4 3

47uFC

108

470uFC

109

KR

C246M

220uFC

107

TR01

RY

02G

5T-1A-12V

DC

DU

12D1-1P

RY

03

1357

1N4148M

D11

CN01SMW250-07AV_RED

RY

11

KR

C246M

G5T-1A

-12VD

CTR

11

ZD102

MTZJ4.3B

+12V

TR02

C01

1nF

KR

C246M

D04

1N4148M

ZD101

F2

UZ5.1B

SB

RY

-TT

INT

TCO

-S

RY

-VE

NT-M

BU

ZZER

RY

-MA

IN

STB

RY

-VE

NT-L

RY

-OP

TION

RY

-NIG

HT

RY

-SP

AR

E

KE

Y7-A

D

DG

ND

+12V

F1

RY

-VE

NT-H

RY

-OP

TION

KE

Y7-A

D

BUZZER

NE

UTR

AL

STB

RY

-INR

US

H

RY

-PO

WE

R-L

RY

-PO

WE

R-H

GS

RY

-BR

IGH

T

RY

-VE

NT-H

RY

-V_D

OO

R

LIVE

STB

RY

-V_D

OO

R

TCO

-S

GS

RY

-INR

US

H

RY

-PO

WE

R-HR

Y-M

AIN

RY

-NIG

HT

RY

-VE

NT-L

RY

-TT

RY

-BR

IGH

T

RY

-VE

NT-M

RY

-PO

WE

R-L

RY

-SP

AR

E

SO

UR

CE

INT

L-IN

LIVE

L-IN

NE

UTR

AL

SOURCE

RY-V_DOOR

GSPN (Global Service Partner Network)Contry Web Site

North America service .samsungportal .com

Latin America latin .samsungportal .com

CIS cis .samsungportal .com

Europe europe .samsungportal .com

China china .samsungportal .com

Asia asia .samsungportal .com

Mideast & Africa mea .samsungportal .com

© Samsung Electronics Co ., Ltd . May . 2009 Printed in Korea Code No . : DE68-05401A

BASIC: SMH7185BG MODEL: SMH9207ST MODEL …031d26d.namesecurehost.com/mwd/SMH9207ST_XAA_sm.pdf6 2. Specifications 2-1 Features Product Features • Professional Design Samsung New

Documents