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Service Manual

Microwave Oven

Model:  KOR-1A0A0P (AL)

KOR-1A4H0P (AL)

KOR-1A5A9P (AL)

DAEWOO ELECTRONICS CO., LTD.

S/M No. : 

R1A0A0PAL2

http : //svc.dwe.co.kr Jun. 2002

Summary of Contents for KOR-1A0A0P

Page 1: ...Service Manual Microwave Oven Model KOR 1A0A0P AL KOR 1A4H0P AL KOR 1A5A9P AL DAEWOO ELECTRONICS CO LTD S M No R1A0A0PAL2 http svc dwe co kr Jun 2002...

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: ...If the oven is operative prior to servicing a microwave emission check should be performed prior to servicing the oven 2 If any certified oven unit is found to servicing a microwave emission check sho...

Page 4: ...MICROWAVE ENERGY OUTPUT 1000W MICROWAVE FREQUENCY 2450MHz OUTSIDE DIMENSIONS W X H X D 539X300X406mm 539X300X435mm CAVITY DIMENSIONS W X H X D 354X228X373mm NET WEIGHT APPROX 15 5kg APPROX 16 5kg TIME...

Page 5: ...4 EXTERNAL VIEW 406 539 300 1 OUTER DIMENSION KOR 1A0A 435 539 300 KOR 1A4H 539 406 300 KOR 1A5A...

Page 6: ...outlet from splashes of cooking foods 5 OVEN LAMP Automatically turns on during oven operating 6 SAFETY INTERLOCK SYSTEM 7 CONTROL PANEL 8 GLASS COOKING TRAY Made of special heat resisant glass The t...

Page 7: ...and present time are displayed 3 One touch Used to cook or reheat specific quantities of food 4 Auto cook Used to cook or reheat 5 More Used to add time to cooking 6 Less Used to reduce time from coo...

Page 8: ...icators and present time are displayed 3 One touch Used to cook or reheat specific quantities of food 4 More Used to add time to cooking 5 Less Used to reduce time from cooking 6 Auto Defrost Used to...

Page 9: ...hot air steam or splash when choosing a place to position it or the insulation might be adversely affected and breakdowns occur 5 Power supply Check your local power source This oven requires a curre...

Page 10: ...P CLEAR pad is touched during the oven operation the oven stops cooking and all information retained To erase all information except the present time touch the STOP CLEAR pad once more If the oven doo...

Page 11: ...beginning repair work 2 Warning about the electric charge in the high voltage capacitor For about 30 seconds after the operation has stopped electric charge remains in the high voltage capacitor When...

Page 12: ...ard 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 doo...

Page 13: ...ING AS KOR 1A1G 1 A05 3517005800 BARRIER SCREEN I PETP T0 1 1 A06 3512301900 GASKET DOOR PP 1 A07 3513100700 HOOK POM 1 A08 3515101300 SPRING HOOK PW1 1 1 Remove the gasket door from door plate 2 Remo...

Page 14: ...OR T STS304 T0 6 HAIR LINE 1 A10 3512603300 HANDLE DOOR U ABS XR 401 H 2938 1 A11 7122401211 SCREW TAPPING T2S TRS 4 12 MFZN 2 A12 3517005800 BARRIER SCREEN I PETP T0 1 1 A13 3512301900 GASKET DOOR PP...

Page 15: ...3517005800 BARRIER SCREEN I PETP T0 1 1 A06 3512301900 GASKET DOOR PP 5113MF6 1 A07 3513100720 HOOK POM BLACK 1 A08 3515101300 SPRING HOOK PW1 1 1 Remove the gasket door from door plate 2 Remove the...

Page 16: ...then push the door to contact the door seal to oven front surface Tighten two screws 3 To reduce gap located on part C Loosen a screw on interlock switch assembly located top of oven body Draw the int...

Page 17: ...ON SPRING SWP DIA 0 7 1 B07 3516907940 BUTTON DOOR OPEN ABS XR 401 H 2938 1 KOR 1A0A 1 Remove the screw which secure the control panel push up two snap fits and draw forward the control panel assembly...

Page 18: ...KMPMSXT00 PCB AS KOR 1A4H0P 1 B05 7122401211 SCREW TAPPING T2S TRS 4 12 MFZN 3 1 Remove the screw which secure the control panel push up two snap fits and draw forward the control panel assembly 2 Rem...

Page 19: ...OR BUTTON SUS430 H L 0 5T 1 B08 441G430171 SPRING BUTTON SWP DIA 0 7 1 B09 3513702310 LEVER DOOR OPEN PP 1 1 Remove the screw which secure the control panel push up two snap fits and draw forward the...

Page 20: ...m2 for a fully assembled oven with door normally closed 6 To remove high voltage capacitor 1 Remove a screw which secure the grounding ring terminal of the H V diode and the capacitor holder 2 Remove...

Page 21: ...assembly 3 Pull the fan from the motor shaft 4 Remove two screws which secure the motor shaded pole 5 Remove the motor shaded pole 6 Reverse the above steps for reassembly 9 To remove H V transformer...

Page 22: ...ock 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 under ON condit...

Page 23: ...nection 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 of primary interlock switc...

Page 24: ...uity Adjust 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 n...

Page 25: ...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 26: ...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 motor do not sto...

Page 27: ...e 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 28: ...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 29: ...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 30: ...29 WIRING DIAGRAM H V FUSE...

Page 31: ...ltage transformer 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 measure...

Page 32: ...31 MP1 MP2 Measurement point...

Page 33: ...the door is opened during operation the count down timer does not stop refer to Circuit Diagram point 1 Check method 6 When the digital clock does not operate properly refer to Circuit Diagram point...

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

Page 35: ...12 14 22 1 6W 1K 5 RD AZ102J 5 17 RESISTOR R11 20 21 1 6W 100K 5 RD AZ104J 3 18 RESISTOR R13 1 6W 200 5 RD AZ201J 1 19 RESISTOR R15 16 1 6W 10K 5 RD AZ103J 2 20 RESISTOR R17 1 6W 510 5 RD AZ511J 1 21...

Page 36: ...35 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 37: ...1 F11 3518605800 HOLDER FUSE NYLON66 1 F12 7121403011 SCREW TAPPING T2S TRS 4 30 MFZN 2 F13 3963324300 MOTOR SHADED POLE 220V 25W MW10GA M01 1 F14 3512517000 GUIDE WIND PP 1 F15 3511800300 FAN PP 30 G...

Page 38: ...OR 1A0A 1A5A 1 F36 3513601600 LAMP BL 240V 25W T25 C7A H187 1 F37 7121400611 SCREW TAPPING T2S PAN 4X6 MFZN 1 F38 3966310100 MOTOR SYNCRO 220V 2 5W GM 16 24FD12 1 F39 3518905400 THERMOSTAT OFF 90 ON 6...

Page 39: ...S M NO R1A0A0PAL2 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 Jun 2002...

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