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Service Manual

Microwave Oven

Model: KOR-1B5C9S

DAEWOO ELECTRONICS CORP.

S/M No. : R1B5C9S001

http : //svc.dwe.co.kr

Aug. 2003

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 KOR-1B5C9S

Page 1: ...B5C9S001 http svc dwe co kr Aug 2003 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 pleas...

Page 2: ...misadjusted components in the interlock monitor door seal and microwave generation and transmission systems shall be repaired replaced or adjusted by procedures described in this manual before the ove...

Page 3: ...urer importer or assembler b repair the unit at no cost to the owner c attempt to ascertain the cause of the excessive leakage d tell the owner of the unit not to use the unit until the oven has been...

Page 4: ...UTPUT 1 000W MICROWAVE FREQUENCY 2450MHz OUTSIDE DIMENSIONS W X H X D 560 x 344 x 483 mm 22 0 x 13 5 x 19 0 in CAVITY DIMENSIONS W X H X D 369 x 240 x 390 mm 14 5 x 9 4 x 15 3 in NET WEIGHT Approx 17...

Page 5: ...mediately stop operating 4 4 OVEN CAVITY 5 5 DOOR SEAL Door seal maintains the microwave energy within the oven cavity and prevents microwave leakage 6 6 GLASS COOKING TRAY Made of spedial heat resist...

Page 6: ...ooking data 3 3 Defrost Used to defrost foods for time 4 4 Time Set Pad Used to set the cooking time or cook preprogrammed cooks 5 5 Check Used to check cooking data 6 6 Double Quantity Used to extend...

Page 7: ...type which if damaged must be repaired with cable of same type Such a cable can be purchased from DAEWOO and must be installed by Qualified Person 6 Examine the oven after unpacking for any damage su...

Page 8: ...hen the STOP CLEAR pad is touched during the oven operation the oven stops cooking and all information retained To erase all information touch the STOP CLEAR pad once more If the oven door is opened d...

Page 9: ...epair work 2 Warning about 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 o...

Page 10: ...rd 2 To remove door assembly 1 Remove two screws which secure the stopper hinge top 2 Remove the door assembly from top plate of cavity 3 Reverse the above for reassembly NOTE After replacing the door...

Page 11: ...02100 DOOR PLATE SBHG 1A T0 7 1 A06 3517007600 BARRIER SCREEN I PE T0 1 1 A07 3512302310 GASKET DOOR LUPOL2300 1 A08 7122401211 SCREW TAPPING T2S TRS 4 12 MFZN 2 A09 3513101200 HOOK POM 1 A10 35151018...

Page 12: ...e top and then push the door to contact the door seal to oven front surface Tighten two screws 2 To reduce gap located on part B Loosen two screws on stopper hinge under and then push the door to cont...

Page 13: ...2 3518524000 SWITCH MEMBRANE KOR 1P5CBA 1 B03 3516728510 CONTROL PANEL ABS AF 348 VT 0826 1 B04 PKMPMSAJ10 PCB AS KOR 1P5K 1 B05 7122401211 SCREW TAPPING T2S TRS 4X12 MFZN 4 1 Remove the screw which s...

Page 14: ...ge circuit wiring 7 To remove magnetron 1 Remove a screw which secure the magnetron 2 Remove the magnetron 3 Reverse the above steps for reassembly NOTE Never install the magnetron without the metalli...

Page 15: ...wind guide assembly 4 Draw forward the wind guide assembly 5 Pull the fan from the motor shaft 6 Remove two screws which secure the motor shaded pole 7 Remove the motor shaded pole 8 Reverse the above...

Page 16: ...k pushes the lock lever downward The lock lever presses the button of the interlock monitor switch to bring it under NO condition and presses the button of the secondary interlock switch to bring it u...

Page 17: ...nnection of the terminals and power cord before check the parts listed below CONDITION CHECK Check continuity of interlock monitor switch with door closed Check continuity of primary interlock switch...

Page 18: ...or replace Check D C voltage being supplied to RELAY RY2 coil Defective touch control circuit 0 V Replace Faulty contacts of RELAY RY2 or open relay coil Approx 15 VDC Replace Display do not show cou...

Page 19: ...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 20: ...lay obviously jumps in time while counting down 9 Display counts down noticeable too fast while cooking 10 Display does not show the time of day when clear pad is touched 11 Oven lamp and turntable mo...

Page 21: ...he vessel the load is immediately placed on the center of the shelf which is in the lowest normal position 4 Microwave power is switched on 5 Heating time should be exactly A seconds Refer to table as...

Page 22: ...binet door seem door viewing 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...

Page 23: ...r set on the highest resistance scale measure the resistance across the diode terminals Reverse the meter leads and again observe the resistance reading Meter with 6V 9V or higher voltage batteries sh...

Page 24: ...23 WIRING DIAGRAM...

Page 25: ...er changes in proportion to fluctuation of power source voltage 3 The allowable tolerance of the secondary voltage is within 5 of nominal voltage NOTE Each measure point must be measured with GND poin...

Page 26: ...25 MP1 MP2 Measure point...

Page 27: ...or is opened during operation the count down timer does not stop refer to Circuit Diagram point 1 Check method 5 When the digital clock does not operate properly refer to Circuit Diagram point 5 If cl...

Page 28: ...27 2 P C B CIRCUIT DIAGRAM...

Page 29: ...0540 1 15 CONNECTOR WAFER CN1 YW396 02V 3519150520 1 16 CONNECTOR WAFER CN2 FCZ 254 12 441M367170 1 17 IC MICOM IC1 TMP87CM14N 4N82 13GS1P5C00 1 18 IC EEPROM IC2 BR9020 W 137N9020W 1 19 PCB MAIN M187...

Page 30: ...29 EXPLODED VIEW AND PARTS LIST 1 DOOR ASSEMBLY Refer to Disassembly and assembly 2 CONTROL PANEL ASSEMBLY Refer to Disassembly and assembly 3 TOTAL ASSEMBLY...

Page 31: ...ETRON RM259 JF 1 F19 3516003800 SPECIAL SCREW T2 FLANGE 5 8 MFZN 1 F20 7272400811 SCREW TAPTITE TT3 TRS 4 8 MFZN 1 F21 3513003200 HOLDER HV CAPACITOR SECC 1 F22 3518303600 CAPACITOR HV 2300VAC 1 05UF...

Page 32: ...S M No R1B5C9S001 DAEWOO ELECTRONICS CORP 686 AHYEON DONG MAPO GU SEOUL KOREA C P O BOX 8003 SEOUL KOREA TELEX DWELEC K28177 8 CABLE DAEWOOELEC PRINTED DATE Aug 2003...

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