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24

(TROUBLE 3)    No microwave oscillation even though fan motor rotates.

CONDITION

CHECK

RESULT

Check continuity of high 

voltage capacitor terminals

with wires removed

Continuity

CAUSE

Defective high

voltage trans-

former

REMEDY

Replace

No

microwave

oscillation

Check continuity of high

voltage fuse

No Continuity

Check continuity of high voltage

rectifier in forward and backward

direction with DC megger

Continuity in

backward

direction

Defective 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

transformer

0 

Ω

or 

∞

Defective high

voltage trans-

former

Replace

Check continuity of magnetron

with wires removed

No

Continuity

Defective mag-

netron

Replace

Check continuity of filament termi-

nal of high voltage transformer

No

Continuity

Defective high

voltage trans-

former

Replace

Check D.C. voltage being sup-

plied to RELAY (RY1) coil

0 V

Defective touch

control circuit

Replace

Approx

15 VDC

Faulty

contacts or

RELAY (RY1)

or open

relay coil

Replace

Содержание KOR-637V0S

Страница 1: ...No R637V0S001 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...

Страница 2: ...or 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 microwave leakage c...

Страница 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...

Страница 4: ...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 465 x 279 x 365 mm 18 3 x 11 0 x 14 4 in CAVITY DIMENSIONS W x H x D 290 x 220 x 306 mm 11 4 x 8 7 x...

Страница 5: ...4 EXTERNAL VIEW 465 279 360 1 OUTER DIMENSION 1 KOR 637V0S 365 392 279 294 465 495 2 KOR 633V0S...

Страница 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...

Страница 7: ...el 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 reheat ti...

Страница 8: ...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 reheat...

Страница 9: ...special 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...

Страница 10: ...tops 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...

Страница 11: ...ZATION button When you press STERILIZATION button 3 00 appears After 1 5 seconds the oven starts sterilizing and STERIL indicator starts blinking to show the oven is Sterilization mode The display cou...

Страница 12: ...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...

Страница 13: ...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...

Страница 14: ...402011 SCREW TAPPING T1 TRS 4X20 MFZN 2 A10 3511606100 DECORATOR DOOR R STS304 T0 5H L 1 A11 3512603220 HANDLE DOOR CR T0 9 1 A12 3515307300 SUPPORTER HANDLE ABS SG 175 2 A13 3511605900 DECORATOR DOOR...

Страница 15: ...S 1 A05 3517002800 BARRIER SCREEN I POLYESTER T0 1 1 A06 3512300200 GASKET DOOR PP 1 A07 3513100700 HOOK POM 1 A08 3515101300 SPRING HOOK PW1 1 A06 A05 A04 A02 A01 A03 A07 A08 Caution In this Service...

Страница 16: ...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...

Страница 17: ...80 BUTTON FUNCTION ABS SG 175 SG 0760D 1 B07 PKBPMSEF00 PCB SUB AS KOR 637V0S 1 B08 PKMPMSEF20 PCB MAIN AS KOR 637V0S 1 B09 7122401211 SCREW TAPPING T2S TRS 4X12 MFZN 3 B10 7621301011 SCREW TAPPING T2...

Страница 18: ...CTION B ABS SG 175 1 B05 3513405240 KNOB VOLUME ABS 1 B06 PKBPMSZ300 PCB SUB AS KOR 633R0S 1 B07 7621301011 SCREW TAPPING T2 PAN 3X10 PW MFZN 4 B08 PKMPMSZ320 PCB MAIN AS KOR 633V0S 1 B09 7122401211 S...

Страница 19: ...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...

Страница 20: ...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 V transformer 1 Remove four screws...

Страница 21: ...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...

Страница 22: ...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...

Страница 23: ...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...

Страница 24: ...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...

Страница 25: ...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...

Страница 26: ...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...

Страница 27: ...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...

Страница 28: ...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...

Страница 29: ...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...

Страница 30: ...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...

Страница 31: ...30 WIRING DIAGRAM...

Страница 32: ...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...

Страница 33: ...32 Measure Point...

Страница 34: ...33...

Страница 35: ...thod 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 b...

Страница 36: ...35 2 PCB CIRCUIT DIAGRAM...

Страница 37: ...101J 1 21 R CARBON FILM R16 18 1 6W 10K 5 RD AZ103J 3 22 R CARBON FILM R19 1 6W 1M 5 RD AZ105J 1 23 R CARBON FILM R20 1 4W 27 5 RD 4Z270J 1 24 R CARBON FILM R12 1 6W 4 7K 5 RD AZ472J 1 25 IC REGULATOR...

Страница 38: ...ly 3 TOTAL ASSEMBLY 1 KOR 637V0S EXPLODED VIEW AND PARTS LIST F28 B00 A00 F47 F48 F49 F50 F51 F52 F53 F45 F46 F44 F43 F41 F39 F40 F38 F37 F42 F42 F32 F35 F36 F34 F33 F31 F56 F56 F55 F55 F30 F29 F23 F2...

Страница 39: ...0CA M02 1 F20 3512517000 GUIDE WIND PP 1 F21 3511800300 FAN PP 30 GLASS 1 F22 3518002400 MAGNETRON 2M218J F 1 F23 3516004000 SPECIAL SCREW T2 BOLT FLANGE 5X12 DACRO 1 F24 7272400811 SCREW TAPTITE TT3...

Страница 40: ...ZN 1 F48 3511406200 COVER WAVE GUIDE HEATPROOF PP 1 F49 3517400620 COUPLER XAREC 1 F50 3514700710 ROLLER TEFLON 3 F51 3512517300 GUIDE ROLLER PP 5113MF6 A353B 1 F52 3517203600 TRAY GLASS 1 F53 3517207...

Страница 41: ...Disassembly and assembly 3 TOTAL ASSEMBLY 2 KOR 633V0S F28 B00 A00 F47 F48 F49 F50 F51 F52 F53 F17 F44 F46 F45 F41 F43 F39 F40 F37 F38 F32 F34 F35 F36 F33 F31 F42 F55 F56 F30 F29 F27 F26 F25 F24 F23 F...

Страница 42: ...10CA M02 1 F20 3512517000 GUIDE WIND PP 1 F21 3511800300 FAN PP 30 GLASS 1 F22 3518002400 MAGNETRON 2M218J F 1 F23 3516004000 SPECIAL SCREW T2 BOLT FLANGE 5X12 DACRO 1 F24 7272400811 SCREW TAPTITE TT3...

Страница 43: ...ZN 1 F48 3511406200 COVER WAVE GUIDE HEATPROOF PP 1 F49 3517400620 COUPLER XAREC 1 F50 3514700710 ROLLER TEFLON 3 F51 3512517300 GUIDE ROLLER PP 5113MF6 A353B 1 F52 3517203600 TRAY GLASS 1 F53 3517207...

Страница 44: ...S M NO R637V0S001 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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