Samsung SMH9151B Service Manual Download Page 17 | Manualshive

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17

3. Disassembly and Reassembly

3-8 Replacement of Cooktop lamp

When replacing the night light, make sure that you are wearing gloves to avoid injury from the heat of the bulb .

Parts

Explaination Photo

Explaination

Cooktop Lamp

Cooktop lamp is on the bottom of the set .

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 .

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Summary of Contents for SMH9151B

Page 1: ...aution 2 Product Specification 3 Disassembly and Reassembly 4 Troubleshooting 5 PCB Diagrams 6 Wiring Diagrams 7 Schematic Diagrams BASIC 85043 MODEL SMH1713 MODEL CODE SMH1713B XAA SMH1713W XAA SMH1713S XAA ...

Page 2: ...or Assembly 12 3 4 Replacement of Fuse 14 3 5 Replacement of Drive Motor 15 3 6 Removal of stirrer 15 3 7 Replacement of Control Circuit Board 16 3 8 Replacement of Cooktop lamp 17 3 9 Replacement of Oven Light 18 4 Troubleshooting 19 4 1 Parts checking method 19 4 2 Error Code Numbering Rule 20 4 3 Error Code List 20 4 4 Electrical Malfunction 22 5 PCB Diagrams 39 5 1 PCB Diagrams 39 5 2 PCB Diag...

Page 3: ...3 1 Precaution ...

Page 4: ...ck 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 ...

Page 5: ...ned 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 PRECAUTION There 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 ...

Page 6: ...Allow quick one touch cooking and reheating Venting System Two speed 300CFM venting system Quickly removes smoke and steam from cook top 2 2 Accessory Item Description Code No Q ty TRAY COOKING DE63 00624A 1 ASSY GUIDE ROLLER DE92 90495C 1 ASSY HOOD DAMPER DE92 90242D 1 ASSY HARD WARE DE92 90505G 1 FILTER AIR DE63 00666A 2 FILTER CHARCOAL DE63 00367E 1 ...

Page 7: ...ck System Option 12 hrs 24 hrs 12 hrs 12 hrs Demonstration Mode No No Numeric Pads 0 9 0 9 Turntable Distribution Stirrer Turntable Stirrer Turntable Turntable On Off No No End Signal Sound Yes Yes Vent Fan CFM 300 300 Vent Orientation Horizontal Vertical Vent Fan Control Hi Lo Off Hi Lo Off Cooktop Lighting Hi Lo Off Hi Lo Off Cabinet Colour STSS Black White Silver STSS Black White Cavity Interio...

Page 8: ...unting plate that is secured to the wall It is not necessary to remove this mounting plate to service this unit This unit is attached to the cabinet above by two self aligning screws Support the unit while removing these screws allowing it to hinge downward to disengage the unit from the mounting plate House Duct Be aware there may also be a connection to the range vent ductwork that is attached t...

Page 9: ...o Explaination Grille 1 Disconnect oven power 2 Remove Grille 1 Remove 3 screws Flat Head 2 Slide the Grille to the left then pull it straght out Arrange the screw hole of the Grill with Outer Panel s when you reassemble the Grill Panel Outer 3 Remove Panel Outer by pulling it to the rear of the set ...

Page 10: ... 1 Replacement of High Voltage Transformer Parts Explaination Photo Explaination High voltage capacitor 4 Discharge the High voltage capacitor 5 Disconnect all the leads Base Bottom 6 Remove Base bottom HV Trans 7 Take out the HV Trans ...

Page 11: ...e magnetron 2 Remove nuts 2 securing the magnetron to the wave guide 3 Take out the magnetron very carefully Especially antenna NOTE1 When removing the magnetron make sure the antenna does not hit any adjacent parts 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 PRECAUTION Be sure...

Page 12: ...iver into the gap between Door A and Door C to remove Door C Be careful when handling Door C because it is fragile Then remove the door assembly 2 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 3 Detach the spring and key door from Door ...

Page 13: ...or 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 PRECAUTION PERFORM MICROWAVE LEAKAGE TEST 3 3 Replacement of Door Assembly ...

Page 14: ...ntrol box 4 Remove Front Bracket Fuse The fuse is located on the noise filter 5 Replace the fuse 6 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 7 When the above four switches operate properly check if any other part such as the control circuit...

Page 15: ...ive motor be sure to remount it in the correct position with the coupler 5 Connect all the leads to the drive motor 3 6 Removal of stirrer Parts Explaination Photo Explaination 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 ...

Page 16: ... screw securing the control box assembly 4 Disconnect the connectors from the control circuit board Removal of P C B Assembly 1 Pull the lever end of the plastic fastener and remove the Flexible Printed Circuit FPC of membrane panel 2 Remove screws 4 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 tha...

Page 17: ...he heat of the bulb Parts Explaination Photo Explaination Cooktop Lamp Cooktop lamp is on the bottom of the set 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 ...

Page 18: ... Reassembly 3 9 Replacement of Oven Light Parts Explaination Photo Explaination Oven Light 1 Remove the Grille 2 Remove the COVER LAMP by push the hook and put up the lever 3 Replace the bulb with a 40 watt appliance bulb ...

Page 19: ...g 4 1 Parts checking method Parts Photo Good No Good Fuse 0 1 1 Ω 100 MΩ exceed T C O 0 1 1 Ω 100 MΩ exceed H V Trans 1 9 Ω 100 MΩ exceed Convection 100 990 Ω 100 MΩ exceed Fan Motor 10 99 Ω 100 MΩ exceed Grill Heater 10 99 Ω 100 MΩ exceed ...

Page 20: ...age E 11 Open Check Sensor part connection of sensor housing and PCB s connector E 12 Short E 13 T1 Max Time Error E 14 Dry Up No Load Insert food and restart Temp Sensor Error Code Temp Sensor Error Case E 2X Solution Page E 21 Open Check sensor part and connection of sensor housing and PCB s connector E 22 Short E 23 T1 Max Time Error Preheating not completed Check heater E 24 Over temperature e...

Page 21: ...ling Error 3minutes Remove moisture from sensor and restart E 46 Primary Open Error 3minutes Check Sensor E 47 The door opens during cooking Cancel the present mode and restart from the begining Humidity Sensor Error Code Humidity Sensor Error Case E 6X Solution Page E 61 Open Check Sensor E 62 Short E 63 T1 Max Time Error Others Error Code Others E 0X Letter Solution Page SE Key Short Error 10 se...

Page 22: ... connected properly Does the voltage change as the humidity temperature and weight change Replace the sensor Check if the sensor wire is damaged if the housing is loose and if the sensor and the wire are properly connected Check if the voltage of the GND and sensor changes using a digital multi meter by forcefully changing the humidity temperature and weight Connect the sensor Connect the wire pro...

Page 23: ... related parts such as the connector or soldering parts are slightly shorted Remove the shorted part of the temperature sensor Remove any foreign Substance from the shorted part YES NO YES YES NO NO YES NO Sensor Short Error E 12 E 22 E 28 E 32 E2A E 2C E 42 or E 62 Is the sensor shorted The sensor is out of order Replace the sensor Perform the operation again and check if it is working properly S...

Page 24: ... on the sensor or is something acting as an obstacle in front of the sensor Does it heat with completely dried food Replace the sensor If the sensor is contaminated by a foreign substance it may fail to detect the humidity Since heating completely dried food may burn the food take care Insert food and heat it again Place food with moisture into it and heat it again Remove the an foreign substance ...

Page 25: ...again and check if it is working properly S W Error Is a specific key not recognized Is the key recognized intermittently The membrane is defective Replace the Control Panel Is the key not recognized at all After Power On does the symptom continue Replace the PCB membrane Connector 4 4 4 SE ...

Page 26: ...s the weight sensor contaminated by any foreign substance Replace the sensor Check if the turntable turns abnormally because food is placed on one side only or if it turns irregularly or if it is slanted and the weight sensor is not pressed Place the turntable over the roller properly YES Remove the foreign substance Place the food in the center Has the turntable been placed over the roller proper...

Page 27: ...oor S W and PCB and if it is opened or shorted intermittently Close the door Check the Door S W and the housing Was the door open during the operation Perform the operation again and check if it is working properly S W Error Is the door sensing part normal After Power On does the symptom continue Replace the PCB 4 4 6 E 36 or E 47 ...

Page 28: ... is maintained over 3V continuously during the initial cooking course using a multi meter Remove any moisture of the sensor Check the sensor terminal and housing Replace the sensor YES NO YES NO YES NO YES NO Cooling Error E 45 Is the sensor wet S W Error Replace the PCB After Power On does the symptom continue Perform the operation again and check if it is working properly sensor sensor terminal ...

Page 29: ...n Short 되었는가 YES NO NO EEPROM이 삽입 되었는가 S W 오동작 YES YES YES NO EEPROM Error E 51 E 53 or E 54 Has the EEPROM been inserted Is the EEPROM terminal opened or is there a short circuit EEPROM Defect Replace the EEPROM Does it work properly Perform the operation again and check if it is working properly S W Error After Power On does the symptom continue Replace the PCB EEPROM MICOM 4 4 8 E 51 E 53 or E ...

Page 30: ...curred Repair the short circuit Is the temperature of the PCB over 90 C An E 2b error occurred Insert the temperature sensor An E 0b error occurred Check the Motor drive part Is the Cooling Motor rotating The temperature sensor is out of order Replace the temperature sensor Perform the operation again and check if it is working properly S W Error After Power On does the symptom continue Replace th...

Page 31: ...eheating Error E 08 E 23 E 26 Is the heater temperature very low Is the temperature sensor connected properly Is the resistance between the heater terminals more then a few MΩ Check the heater related drive part Replace the heater Reconnect the temperature sensor properly Replace the heater Does the heater work S W Error After Power On does the symptom continue Replace the PCB Perform the operatio...

Page 32: ...cel key to cancel the current state Press the Cancel key to cancel the current state Is this happening during the MW operation Is it happening during the Grill operation Is it happening during the Convection operation Over Time is set Over Time is set Over Time is set Over Time is set Is it happening during the Combination operation Since the max time may differ depending on the model refer to the...

Page 33: ...20 degrees Has the oven internal temperature reached over 350 degrees Is the temperature sensor connectivity normal Is the Heater connectivity normal An E 09 error occurred An E 24 E 0A error occurred Reconnect the temperature sensor properly Check and repair the heater drive part if necessary S W Error After Power On does the symptom continue Replace the PCB Perform the operation again and check ...

Page 34: ...peration again and check if it is working properly Is the oven in MW mode Is the internal temperature over 200 degrees Is the sensor connectivity normal An E 25 error occurred Press the Cancel key Connect it properly and try again After Power On does the symptom continue Press the Cancel key to cancel the current state 4 4 15 E 25 ...

Page 35: ...ly Is the oven in Bake Toast mode Has the switch heater operated for 20 seconds Has the micro switch been detected After waiting for 20 seconds check if the micro switch has been detected The micro switch is defective Replace it Connect the micro switch properly After Power On does the symptom continue Is connectivity housing of the micro switch normal micro switch 4 4 16 E 06 ...

Page 36: ...duit normal NO NO Is Primary interlock switch normal Is Power Relay normal YES YES YES YES YES YES NO NO NO YES NO NO Replace switch Do check power supply circuit Do check Relay control circuit Is high voltage dioed normal Is high voltage dioed normal Is high voltage capacitor normal Is magnetron normal NO Is the IC01 output of PCB normal NO NO Checking high voltagecircuts NO NO 4 4 17 If oven mal...

Page 37: ...r to User Manual Menbrane type Tact type YES YES Buttons of the control panel do not work Inspection method Are button pressed in the correct order Is the connector of the control panel normal Replace PCB 4 4 18 If button malfunction ...

Page 38: ...O Is the latch switch operating normally Food is not heated even though an oven works Inspection method Method to control latch switch Checking high voltage circuits YES 4 4 19 If food is not heated even though an oven works ...

Page 39: ...AY Vent speed control boost 4 RY204 MAIN RELAY Fan Lamp T table control 13 CN201 Power Relay connector A terminal for HVT C TOP LAMP and T T 5 RY205 COOK TOP NIGHT RELAY Low light on off control 14 CN202 Louver Vent Inrush control connector A terminal for Louver Vent Inrush 6 RY206 COOK TOP BRIGHT RELAY High light on off control 15 CN301 Gas sensor connector A terminal for gas sensor 7 RY207 TURN ...

Page 40: ...NPUT7 RY 202 1 LOW POWER RELAY CONTACT 1 2 LOW POWER RELAY CONTACT 2 RY 203 1 HIGH POWER RELAY CONTACT 1 2 HIGH POWER RELAY CONTACT 2 C N202 1 LOUV ER 2 NO CONNECTION 3 V ENT HIGH 4 NO CONNECTION 5 V ENT MEDIUM 6 NO CONNECTION 7 V ENT LOW 8 NO CONNECTION 9 V ENT BOOST 10 NO CONNECTION 11 INRUSH C N201 1 LIV E 2 NO PIN 3 MAIN 4 NO PIN 5 C TOP 6 NO PIN 7 T TABLE C N301 1 GAS SENSOR S1 2 GAS SENSOR S...

Page 41: ...41 6 Wiring Diagrams 6 Wiring Diagrams 6 1 Wiring Diagrams This Document can not be used without Samsung s authorization ...

Page 42: ...42 6 Wiring Diagrams 6 1 Wiring Diagrams This Document can not be used without Samsung s authorization ...

Page 43: ...V 2K R409 5V R408 2K 2 2nF C106 10uF C901 100nF C105 5V R708 20K D709 1N4148M D203 MM4148 47uF C501 C103 1nF 20K R804 C302 100nF 100 R201 MM4148 D209 1N4148M D708 RY204 AC5 S DC12V KRC246 TR204 1N4007 D214 AC5 S DC12V RY208 R707 2K R103 12K RY207 AC5 S DC12V 20K R711 2 1 4 3 F2 SMW250 04V_RED CN301 100nF XTL101 8 000MHz D217 MM4148 C113 TR504 KRC246 R502 220 MM4148 D212 5V D201 MM4148 R903 2K MM41...

Page 44: ...ervice 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 June 2011 Printed in Korea ...

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