Daewoo KOM-9F2CTS Service Manual Download Page 1

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Service Manual

Microwave Oven

Model: KOM-9F2CTS

KOM-9F2CKS

S/M No. :

May. 2012

✔

Caution

: In this Manual, some parts can be changed for improving,

their performance without notice in the parts list. So, if you
need the latest parts information, please refer to PPL(Parts
Price List) in Service Information Center (http://svc.dwe.co.kr).

Summary of Contents for KOM-9F2CTS

Page 1: ...M No May 2012 Caution In this Manual some parts can be changed for improving their performance without notice in the parts list So if you need the latest parts information please refer to PPL Parts P...

Page 2: ...tems shall be repaired replaced or adjusted by procedures described in this manual before the oven is released to the owner e A microwave leakage check to verify compliance with the Federal performanc...

Page 3: ...ervicing the oven 2 If any certified oven unit is found to have excessive emission level 5mW cm 2 the service man should a inform the manufacturer importer or assembler b repair the unit at no cost to...

Page 4: ...MENSIONS W X H X D CAVITY VOLUME NET WEIGHT TIMER POWER SELECTIONS 240V AC 50Hz SINGLE PHASE WITH EARTHING 465 X 370 X 599 mm 18 31 X 14 57 X 23 58 in 371 X 198 5 X 372 mm 14 61 X 7 81 X 14 66 in 0 9...

Page 5: ...4 EXTERNAL VIEW 1 OUTER DIMENSION 465 599 370...

Page 6: ...will automatically shut off If the door is opened while the oven is operating magnetron will immediately stop operating 4 4 Oven Cavity 5 5 Door Seal Door seal maintains the microwave energy within th...

Page 7: ...QUANTITY pad X2 pad increases a preprogrammed cooking time by a percentage of the original cooking time The user specifies the percentage and it can be changed for individual cooking sequences This fe...

Page 8: ...er source This microwave oven requires a current of approximately 13 amperes 240Volts 50Hz 1 A short power supply cord is provided to reduce the risks resulting from becoming entangled in or tripping...

Page 9: ...ooking and all information retained To erase all information touch STOP pad once more If the oven door is opened during the oven operation all information is retained 8 If the START pad is touched and...

Page 10: ...the electric charge in the high voltage capacitor For about 30 seconds after the operation stopped and electric charge remains in the high voltage capacitor When replacing or checking parts short bet...

Page 11: ...h secure the front plate 2 Remove the control panel assembly from front plate of cavity 3 Reverse the above for reassembly 3 To remove door assembly 1 Open the door ssembly and lift the door assembly...

Page 12: ...rol panel assembly 2 Remove three screws which secure the PCB assembly to control panel 3 Reverse the above steps for reassembly B01 3516742100 CONTROL PANEL ABS SG 175 SG 0760D 1 B02 3514333500 PCB S...

Page 13: ...Remove the handle door from frame door 11 Reverse the above steps for reassemble A01 3512211600 FRAME DOOR ABS SG 175 SG 0760D 1 A02 3511732410 DOOR SEAL AS KOM 9F2CTS 1 A03 7122400811 SCREW TAPPING...

Page 14: ...magnetron 1 Remove each four nuts which secure the magnetrons 2 Remove the two magnetrons 3 Reverse the above steps for reassembly 13 1 To reduce gap located on part A Loosen screws on top of lock and...

Page 15: ...ge It shall not exceed 4mW cm 2 for a fully assembled oven with door normally closed Metalic gasket plate Cooling fin Filament terminal MAGNETRON Stub Magnetron antenna Wave guide Magnetron antenna Me...

Page 16: ...r reassembly 11 To remove lamp 1 Remove one screws holding the cover lamp 2 Remove counterclockwise direction lamp from the bracket lamp 3 Reverse the above steps for reassembly 12 To remove motor ven...

Page 17: ...three fixture supporter stirrer holding the stirrer t 4 Remove stirrer t from the cavity 5 Insert a flat head type screwdriver tray front equivalent approx 6 Carefully lift up the floor tray by using...

Page 18: ...y interlock switch and interlock monitor switch When the door is closed the hook locks the oven door If the door is not closed properly the oven will not operate When the door is closed the hook pushe...

Page 19: ...e harness wiring and connection of the terminals and power cord before check the parts listed below CONDITION CHECK Check continuity of interlock monitor switch with door closed Malfunction of interlo...

Page 20: ...st or replace Check D C voltage being supplied to RELAY RY8 coil Defective touch control circuit 0 V Replace Faulty contacts of RELAY RY8 or open relay coil Approx 15 VDC Replace Display do not show c...

Page 21: ...EDY Adjust or replace Fan motor does not rotate Check continuity of secondary interlock switch Malfunction of secondary interlock switch No Continuity Adjust or replace Check D C voltage being supplie...

Page 22: ...body Continuity Defective magnetron Replace Check resistance of primary and secondary coil of high voltage transformer 0 or Defective high voltage transformer Replace Check continuity of magnetron wi...

Page 23: ...Display does not count down or up with time cooking or clock operation 7 Oven is programmable and cooks normally but no display shows 8 Display obviously jumps in time while counting down 9 Display c...

Page 24: ...e the water is added to the vessel After addition of the water to the vessel the load is immediately placed on the center of the shelf which is in the lowest normal position 4 Microwave power is switc...

Page 25: ...screen the exhaust air vents and the suction air vents 3 Measuring should be in a counter clockwise direction at a rate of 1 in sec If the leakage of the cabinet door seem is unknown move the probe m...

Page 26: ...tance reading Meter with 6V 9V or higher voltage batteries should be used to check the front back resistance of the diode otherwise an infinite resistance may be read in both directions A normal diode...

Page 27: ...ANSFORMER B MA GNETRON B THERMOSTAT MGT B W H SM B SWITCH B INTERLOCK PRIMAR Y BL LINE FILTER ASS Y FUSE T SWITCH B SECONDARY INTERLOCK RD INTERLOCK MO NITOR SWITCH B L R RD PTC RD RELAY LAM P L V T R...

Page 28: ...ICMICOM FRONTSIDE H V TRANSFORMER FA F MAGNETRON Bottom MAGNETRON Top HVCAPACITOR Top HVCAPACITOR Bottom RD Bot WH Top FA F RD Bot WH Top H V TRANSFORMER NOTE When replacing check the lead wire color...

Page 29: ...in 5 of nominal voltage NOTE Each measure point must be measured with GND points 6 7 7 8 DC 12V AC 25 8V 9 10 AC 2 5V AC 3 0V Terminal Voltage LOAD NO LOAD NO CHECK POINT REMARK T T 20ms 50Hz 5V 0V T...

Page 30: ...29 MP2 MP1 GND...

Page 31: ...ND 12VDC POINT A B STATE Fan motor does not rotate Cause RELAY 7 does not operate RELAY 8 ON 5VDC GND RELAY 8 OFF GND 12VDC POINT A B STATE RELAY 7 ON 5VDC GND RELAY 7 OFF GND 12VDC POINT A B STATE 2...

Page 32: ...on hour 1 1 hour 2 TUBE CYCLE Accumulated magnetron turn on off times 1 once 3 DOOR CYCLE Accumulated door open closed times 1 10 times PAD NAME DECRIPTION UNIT 1 BLANK Open Door 2 SERVICE Press and h...

Page 33: ...l show SERVICE message then you can select the service information to be initialized by pressing a number pad as described below The service information is initialized when you press the 0 pad The dis...

Page 34: ...33 2 P C B CIRCUIT DIAGRAM...

Page 35: ...3 73V 1 18 IC EEPROM IC2 14HN24C16L CAT24C16LI 1 19 IC MICOM IC1 13GL87P14N TMP87PM14N 1 20 IC RESET IC3 1K1A7033AP KIA7033AP 1 21 PCB MAIN BOARD 3514335100 M352 1 22 R ARRAY RA1 2 RA 85X104J RGLD4X10...

Page 36: ...10 F08 F09 F11 F12 F14 F13 F16 F17 F19 F18 F20 F22 F21 F24 F23 F25 F26 F27 F28 F29 F42 F30 F32 F38 F39 F36 F34 F33 F35 F37 F43 F41 F40 F44 F46 F45 F47 F48 F49 F50 F52 F15 F53 F54 F55 F56 F60 F61 F58 F...

Page 37: ...W MICRO SZM V16 FD 93 W 400G 2 F21 4415A66600 SW MICRO SZM V16 FA 62 2 F22 4415A17352 SW MICRO SZM V16 FA 63 1 F23 7121301513 SCREW TAPPING T2S PAN 3X30 MFZN 2 F24 7S322X40B1 SCREW SPECIAL T2 TRS 4X12...

Page 38: ...AL T1 TRS 4X10 SE MFZN 2 F67 3516509000 REAR PLATE SBHG T0 5 1 F68 3510613270 BRACKET CAPACITOR SBHG T0 5 1 F69 7S312X40A1 SCREW SPECIAL T1 TRS 4X10 SE MFZN 2 F70 3518303620 CAPACITOR HV 2300VAC 1 05U...

Page 39: ...S M NO DAEWOO ELECTRONICS CORP 1 2 Jeo dong 1 il ga Jung gu Seoul Korea C P O BOX 8003 SEOUL KOREA TELEX DWELEC K28177 8 CABLE DAEWOOELEC PRINTED DATE May 2012...

Page 40: ...C D E F G H EIJKL H EIJKL H M NEO P Q LRSL RT RU E E V WJX YZ A Q G WRIR66R K _ WRIW UU SL RT RUI 8 8a WX X TX 6X X SRX SSX SLX SWX STX S X L X LTX L6X LUX W X WTX W6X W Xb cd LSX SL RT S IUX JX W X Q...

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