Daewoo KOR-637V0A Service Manual Download Page 1

S/M No. : 

R637V0A002

Service Manual

Microwave Oven

Model: KOR-637V0A

S/M No. : 

R637V0A002

Apr. 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 

Summary of Contents for KOR-637V0A

Page 1: ...637V0A S M No R637V0A002 Apr 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 r...

Page 2: ...n 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 oven is released to the own...

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

Page 4: ...GY OUTPUT 800W MICROWAVE FREQUENCY 2450MHz OUTSIDE DIMENSIONS W x H x D 465 x 279 x 360 mm 18 3 x 11 0 x 14 2 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 1...

Page 5: ...4 EXTERNAL VIEW 1 OUTER DIMENSION 465 279 360...

Page 6: ...5 DOOR SEAL Door seal surfaces prevent microwave escaping from the oven cavity 7 7 GLASS COOKING TRAY Made of special heat resistant glass The tray can be easily removed for cleaning Make sure it is...

Page 7: ...power level indicators and present time 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...

Page 8: ...approximately 15 amperes 120Volts 60Hz grounded outlet Power supply cord is about 0 8 meters long 1 A short power supply cord is provided to reduce the risks resulting from becoming entangled in or t...

Page 9: ...cooking and all information retained To erase all information except the present time press the STOP CLEAR button once more If the oven door is opened during the oven operation all information is ret...

Page 10: ...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 11: ...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 12: ...S T3 2 1 A03 3515204100 STOPPER HINGE T AS KOR 63150S 1 A04 3511706120 DOOR PAINTING AS KOR 634R0S 1 A05 3517002800 BARRIER SCREEN I PET 0 1 1 A06 3512300200 GASKET DOOR PP 1 A07 3513100730 HOOK POM B...

Page 13: ...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 conta...

Page 14: ...01530 WINDOW DISPLAY PMMA 1 B03 3516726200 CONTROL PANEL ABS SG 175 SG 0760D 1 B04 3516907480 BUTTON FUNCTION ABS SG 175 SG 0760D 1 B05 3514323330 PCB MAIN AS KOR 637V0A 1 B06 7122401211 SCREW TAPPING...

Page 15: ...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 16: ...the wind guide assembly 4 Pull the fan from the motor shaft 5 Remove two screws which secure the motor shaded pole 6 Remove the motor shaded pole 7 Reverse the above steps for reassembly 9 To remove H...

Page 17: ...nap fits 4 Remove the socket starter I from the socket starter O 5 Remove the terminal starters from the socket starter I 6 Remove the starter glow from the socket starter I 7 Remove the lamp germicid...

Page 18: ...ion and presses the button of the secondary interlock switch to bring it under ON condition 3 Adjustment steps a Loosen the one mounting screw b Adjust interlock switch assembly position c Make sure t...

Page 19: ...the terminals and power cord before check the parts listed below CONDITION CHECK Check continuity of interlock monitor switch with door closed COM NC Check continuity of both primary and secondary in...

Page 20: ...e filter board No continuity Replace Check continuity of power supply cord Defective touch control circuit Adjust Open power supply cord No continuity Normal Replace CONDITION CHECK Check continuity o...

Page 21: ...high voltage rectifier Replace Connect megger leads to mag netron terminal and magnetron body Continuity Defective mag netron Replace Check resistance of primary and secondary coil of high voltage tr...

Page 22: ...isplay counts down noticeably too fast while cooking 10 Display does not show the time of day when STOP CLEAR button is pressed in case of setting the present time 11 Oven lamp and turntable motor do...

Page 23: ...on Faulty cantacts of RELAY RY3 or open relay coil Replace Check continuity of secondary interlock and D O M switch Check D C Voltage being sup plied to RELAY RY3 Coil Malfunction of primary interlock...

Page 24: ...ssel 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 foll...

Page 25: ...net 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 i...

Page 26: ...the ohmmeter 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 b...

Page 27: ...26 WIRING DIAGRAM...

Page 28: ...R 32 NOTE Each measure point must be measured with GND points NOTE 1 Refer to Circuit Diagram point 4 2 Secondary side voltage of the low voltage transformer changes in proportion to fluctuation of po...

Page 29: ...28 Measure Point...

Page 30: ...29...

Page 31: ...d 5 When the digital clock does not operate properly refer to Circuit Diagram Point 5 If clock does not keep exact time you must check resistor R16 17 zener diode ZD1 6 When pressing PURIFICATION butt...

Page 32: ...31 2 PCB CIRCUIT DIAGRAM...

Page 33: ...R8 9 11 15 21 101 102 1 6W 1K 5 RD AZ102J 7 19 R CARBON FILM R13 1 6W 100K 5 RD AZ104J 1 20 R CARBON FILM R14 1 6W 100 5 RD AZ101J 1 21 R CARBON FILM R16 18 1 6W 10K 5 RD AZ103J 3 22 R CARBON FILM R19...

Page 34: ...33 1 DOOR ASSEMBLY Refer to Disassembly and assembly 2 CONTROL PANEL ASSEMBLY Refer to Disassembly and assembly 3 TOTAL ASSEMBLY EXPLODED VIEW AND PARTS LIST...

Page 35: ...TRS 4 12 MFZN 1 F16 7122401211 SCREW TAPPING T2S TRS 4 12 MFZN 1 F17 7121403011 SCREW TAPPING T2S PAN 4X30 MFZN 2 F18 3963821610 MOTOR SHADED POLE 120V 60HZ MW10XA MO1 1 F19 3512517000 GUIDE WIND PP...

Page 36: ...TOR SYNCRO 120V 2W GM 16 12F17 1 F44 3518905300 THERMOSTAT OFF 75 ON 65 H 187 NR 1 F45 3513003400 HOLDER THERMOSTAT PBT 1 F46 7272400811 SCREW TAPTITE TT3 TRS 4X8 MFZN 1 F47 3511406200 COVER WAVE GUID...

Page 37: ...S M NO R637V0A002 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 Apr 2002...

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