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Service Manual

Microwave Oven

Model:  KOR-639R0S

DAEWOO ELECTRONICS CO., LTD.

S/M No. : 

R639R0S001

http : //svc.dwe.co.kr

Jan. 2002

✔ 

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-639R0S

Page 1: ...639R0S001 http svc dwe co kr Jan 2002 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 plea...

Page 2: ...monitor door seal and microwave generation and transmission systems shall be repaired replaced or adjusted by procedures described in this manual before the oven is released to the owner e A microwav...

Page 3: ...any certified oven unit is found to servicing a microwave emission check should be performed prior to servic ing the oven a inform the manufacturer importer or assembler b repair the unit at no cost t...

Page 4: ...E FREQUENCY 2450MHz OUTSIDE DIMENSIONS W X H X D 465 x 279 x 375 mm 18 3 x 11 0 x 14 8 in CAVITY DIMENSIONS W X H X D 290 x 220 x 306 mm 11 4 x 8 7 x 12 0 in NET WEIGHT APPROX 13 kg 28 7 Ibs TIMER 59...

Page 5: ...he microwave 3 3 DOOR HOOK When the door is closed it will automatically shut off If the door is opened while the oven is operating the magnetron tube will immediately stop operating 4 4 OVEN CAVITY 5...

Page 6: ...ors are displayed 6 6 Stop Clear Used to stop the oven operation or to erase all entries 7 7 Start Easy cook Used to start the oven operation and also increase the reheat time by 30 seconds 8 8 Dial K...

Page 7: ...ial 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 a Qualified Person 6 Examine the oven after unpacking for any dama...

Page 8: ...ing time ends 10 When the STOP CLEAR button is pressed during the oven operation the oven stops cooking and all information retained To erase all infomation press the STOP CLEAR button once more If th...

Page 9: ...pair 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 or...

Page 10: ...ard 2 To remove door assembly 1 Remove the screw 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: ...PP 1 A07 3513100730 HOOK POM BLACK 1 A08 3515101320 SPRING HOOK HSW 3 1 A09 7122401211 SCREW TAPPING T2S TRS 4 12 MFZN 2 A10 3512604100 HANDLE DOOR ABS 1 A11 3511607210 DECORATOR CAP ABS SG 175 SG 07...

Page 12: ...r hinge under and then push the door to contact the door seal to oven front surface Tighten the screw 1 Remove the gasket door from door weld as 2 Remove the barrier screen inner from door weld as 3 R...

Page 13: ...3516909830 BUTTON FUNCTION A ABS SG 175 SG 0760D COAT 1 B08 3514321480 PCB SUB AS KOR 639K 1 B09 3514323350 PCB MAIN AS KOR 639K 1 B10 7122401211 SCREW TAPPING T2S TRS 4X12 MFZN 4 B11 7621301011 SCRE...

Page 14: ...rew which secure the control panel push up two snap fits and draw forward the control panel assembly 2 Remove screws which secure the PCB assembly 3 Disconnect WIRE FLAT from the connector of the PCB...

Page 15: ...ssembly 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 steps for r...

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

Page 17: ...and power cord before check the parts listed below CONDITION CHECK Check continuty of interlock monitor switch with door closed COM NC Check continuity of both prima ry and secondary interlock switch...

Page 18: ...ontinuity Adjust or replace Check D C voltage being sup plied to RELAY RY2 coil Defective touch control circuit 0 V Replace Faulty contacts of RELAY RY2 or open relay coil Approx 15 VDC Replace Check...

Page 19: ...to mag netron terminal and magnetron body Continuity Defective mag netron Replace Check resistance of primary and secondary coil of high voltage transformer 0 or Defective high voltage trans former R...

Page 20: ...usly jumps in time while counting down 9 Display counts down noticeably too fast while cooking 10 Oven lamp and turntable motor do not stop although cooking is finished Check if the RELAY 2 contacts a...

Page 21: ...vessel the load is immediately placed on the center of the shelf which is in the lowest nor mal 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: ...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 batter ies sh...

Page 24: ...23 THERMAL CUT OUT INTERLOCK MONITOR SWITCH 1 2 3 WIRING DIAGRAM...

Page 25: ...ransformer 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...

Page 26: ...25 Mesurement point MP1 MP2 PCB MAIN...

Page 27: ...26 PCB SUB...

Page 28: ...n the door 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...

Page 29: ...1 12SH TRAN FAN LAMP D13 1N4148 D12 1N4148 R23 27 1 4W KN4004A C7 104 C6 102 SW105 W 0022 M180 SJ1 SJ2 SJ3 SJ4 C1 104Z V2 D8 1N4148 D7 1N4148 Q1 KTA 1266Y CR1 CRT4 00MS R21 10K C2 104Z ZD2 5 1V RA1 5P...

Page 30: ...1 6W 100 5 RD AZ101J 1 21 R CARBON FILM R13 19 1 6W 220 5 RD AZ221J 7 22 R CARBON FILM R1 5 6 8 11 12 22 1 6W 1K 5 RD AZ102J 7 28 R CARBON FILM R3 1 6W 4 7K 5 RD AZ472J 1 25 R CARBON FILM R7 20 21 1 6...

Page 31: ...30 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 32: ...N80S0 63T 1 F22 3516003700 SPECIAL SCREW TT3 HEX 4X8 FLG MFZN 4 F23 3510311700 BASE SBHG T0 7 1 F24 7112401011 SCREW TAPPING T1 TRS 4 10 MFZN 5 F25 3512100900 FOOT PP DASF 130 2 F26 7272400811 SCREW T...

Page 33: ...S M NO R639R0S001 DAEWOO ELECTRONICS CO LTD 686 AHYEON DONG MAPO GU SEOUL KOREA C P O BOX 8003 SEOUL KOREA TELEX DWELEC K28177 8 CABLE DAEWOOELEC PRINTED DATE Jan 2002...

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