Daewoo KQG-868G7S Service Manual Download Page 1

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Service Manual

Microwave Oven

Model: KQG-868G7S

DAEWOO ELECTRONICS CORP.

S/M No. : KQG868G7S1

May. 2004

✔

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 KQG-868G7S

Page 1: ...NICS CORP S M No KQG868G7S1 May 2004 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: ...the magnetron wave guide or transmission line and cavity for proper align ment integrity and connections d Any defective or misadjusted components in the interlock monitor door seal and microwave gen...

Page 3: ...certified 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...

Page 4: ...900W MICROWAVE FREQUENCY 2450MHz OUTSIDE DIMENSIONS W X H X D 495 x 294 x 394 mm CAVITY DIMENSIONS W X H X D 320 x 237 x 343 mm 12 6 x 9 3 x 13 5 in NET WEIGHT Approx 14kg 31 lbs TIMER 59 min 90 sec F...

Page 5: ...This is to remain in the oven for all cooking 8 Roller guide This must always be used for cooking together with the glass cooking tray 9 Glass cooking tray Made of special heat resistant glass Food in...

Page 6: ...t Used to defrost food for time 6 Clock Used to set clock 7 Time set pad Used to set the cooking time and the present time 8 Frozen Pizza Used to reheat frozen pizza 9 Stop Clear Used to stop the oven...

Page 7: ...st 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 damage such as A misaligned door...

Page 8: ...e oven door is opened during the oven operation all information is retained 11 If the START pad is touched and the oven does not operate check the area between the door and door is closed securely The...

Page 9: ...ir work 2 Warning about the electric charge in the high voltage capaci tor 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 a 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: ...KOR 866T0S 1 A06 3517006000 BARRIER SCREEN I PE T0 1 1 A07 3512302000 GASKET DOOR PP 5113MF6 1 A08 3513100700 HOOK POM 1 A09 3515101300 SPRING HOOK PW1 1 A10 2TE16B36CL TAPE DOUBLE 0 16TX36MM CLEAR 55...

Page 12: ...hinge 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 three screws on bottom hinge and then the door to contact t...

Page 13: ...ol panel 6 Reverse the above steps for reassembly REF NO PART CODE PART NAME DESCRIPTION Q TY REMARK B01 3516911300 BUTTON DOOR OPEN ABS SG 175 SG 0760D 1 B02 3518571500 SWITCH MEMBRANE KQG 868G7S 1 B...

Page 14: ...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 15: ...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 steps for...

Page 16: ...screw which secure the tray motor 6 Remove the tray motor 7 Reverse the above steps for reassembly except for secur ing the tray motor cover with screw 11 To remove heater assembly 1 Remove one side o...

Page 17: ...EF NO PART CODE PART NAME DESCRIPTION Q TY REMARK C01 3512765100 HARNESS HEATER KOC 970T1S TEFLON 1 C02 7112401011 SCREW TAPPING T1 TRS 4X10 MFZN 2 C03 3510607800 BRACKET HEATER T SBHG T0 5 2 C04 3512...

Page 18: ...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 19: ...ted of 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 second...

Page 20: ...Continuity 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 Check...

Page 21: ...ds to magnetron terminal and magnetron body Continuity Defective magnetron 2 1 Check resistance of primary and secondary coil of high voltage transformer 0 or Defective high voltage transformer Replac...

Page 22: ...y 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 cancel button is touched 11 Oven lamp and turntable...

Page 23: ...l 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 followi...

Page 24: ...net door seem door viewing screen the exhaust air vents and the suc tion 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 25: ...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 shou...

Page 26: ...25 WIRING DIAGRAM...

Page 27: ...anges 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 point Ter...

Page 28: ...27 MP2 MP1...

Page 29: ...agram point 6 Check method 5 When 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 properl...

Page 30: ...29 2 P C B CIRCUIT DIAGRAM...

Page 31: ...SPLAY DP1 LTC 4651HG 631 DDDG631H02 1 17 PCB MAIN M304 92X161 3514321190 1 18 R ARRAY RA1 7P 6 1 8 100K J RA 87X104J 1 19 REGISTER R8 10 16 19 1 6W 330 5 RD AZ331J 7 20 REGISTER R1 2 6 12 21 1 6W 1K 5...

Page 32: ...31 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 33: ...0 98UF 187 1 F19 3518400400 DIODE HV HVR 1X 3AB 12KV 187 1 F20 3518701100 FUSE HV 5KV 0 55A HV 41A55 02 1 F21 3518119311 TRANS HV DW R90S0 86T S 1 F22 3516003700 SPECIAL SCREW TT3 HEX 4X8 FLG MFZN 4...

Page 34: ...S M NO KQG868G7S1 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 May 2004...

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