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Service Manual

Microwave Oven

Model: KOG-8B5R5S/W

S/M No. : 

Sep. 2010

✔

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).

OG8B5R5S01

Summary of Contents for KOG-8B5R5S

Page 1: ...2010 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...

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: ...f any 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...

Page 4: ...G POWER MICROWAVE 1200 W CONSUMPTION GRILL 1050 W COMBINATION 2200 W MICROWAVE ENERGY OUTPUT 800 W MICROWAVE FREQUENCY 2450 MHz OUTSIDE DIMENSIONS W x H x D 465 x 287 x 376 mm CAVITY DIMENSIONS W x H...

Page 5: ...4 EXTERNAL VIEW 1 OUTER DIMENSION 465 287 376...

Page 6: ...en for all cooking 8 8 ROLLER GUIDE This must always be used for cooking together with the glass cooking tray 9 9 GLASS COOKING TRAY Made of special heat resistant glass Food in a proper receptacle is...

Page 7: ...Used to set power level and DEFROST 4 4 Auto cook Used to cook using a program or to reheat 5 5 Start Easy cook Used to start the oven operation and also increase the reheat time by 30 seconds 6 6 St...

Page 8: ...of 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...

Page 9: ...the oven stops cooking and all information retained To erase all infomation press the STOP CLEAR button once more If the oven door is opened during the oven operation all information is retained 11 W...

Page 10: ...ir 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 c...

Page 11: ...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 12: ...HANDLE DOOR U ABS SG 175 SG 0760D COLOR 1 A11 3512603400 HANDLE DOOR T STS T0 6 1 A12 3511601500 DECORATOR LOGO AL T1 5 1 A13 3511604610 DECORATOR DOOR U STS T0 6 1 A14 3511604600 DECORATOR DOOR T STS...

Page 13: ...Tighten two screws 2 To reduce gap located on part B Loosen two screws on stopper hinge under and then push the door to contact the door seal to oven front surface Tighten two screws 4 Method to redu...

Page 14: ...00 KNOB VOLUME ABS XR 401 H 2938 1 B02 3511604530 DECORATOR C PANEL STS T0 6 1 B03 3516003960 SPECIAL DOUBLE TAPE SI 161 T0 15 5500 1 B04 3515501530 WINDOW DISPLAY PMMA T2 0 1 B05 3516723701 CONTROL P...

Page 15: ...cure the magnetron 2 Remove the magnetron 3 Reverse the above steps for reassembly NOTE Never install the magnetron without the metallic gasket plate which is packed with each magnetron to prevent mic...

Page 16: ...the above steps for reassembly 8 To remove wind guide assembly 1 Remove a screw which secure the wind guide assembly 2 Draw forward the wind guide assembly 3 Pull the fan from the motor shaft 4 Remove...

Page 17: ...e plate 4 Remove the tray motor cover 5 Remove a screw which secure the tray motor 6 Remove the tray motor 7 Reverse the above steps for reassembly except for securing the tray motor cover with screw...

Page 18: ...5001200 SPACER INSULATOR I C3771BD A 24 2 2 C03 3513301100 INSULATOR HEATER SPP T0 8 1 C04 3512803410 HEATER 230V 1000W 1SOPE 47501 1 C05 7002500613 SCREW MACHINE TRS 5X6 MFCR 1 C06 7002400814 SCREW M...

Page 19: ...resses 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 condition The door lock mechanism is a de...

Page 20: ...rd before check the parts listed below CONDITION CHECK Check continuity of interlock monitor switch with door closed COM NO Check continuity of primary interlock switch contact with door partially ope...

Page 21: ...h RESULT No Continuity CAUSE REMEDY Adjust or replace Turn table motor and oven lamp do not turn on Check continuity of secondary interlock and D O M switchs Malfunction of secondary interlock and D O...

Page 22: ...ce Connect megger leads to magnetron terminal and magnetron body Continuity Defective magnetron Replace Check resistance of primary and secondary coil of high voltage transformer 0 or Defective high v...

Page 23: ...counting down 9 Display counts down noticeably too fast while cooking 10 Display does not show the time of day when STOP CLEAR button is pressed 11 Oven lamp and turntable motor do not stop although...

Page 24: ...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 25: ...in 3 Place it at the center of the tray and set it in a cavity 4 Close the door and operate the oven 5 Measure the leakage by using Microwave Energy Survey Meter with dual ranges set to 2450MHz 1 Meas...

Page 26: ...er 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 s...

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

Page 28: ...E 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 power sour...

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

Page 30: ...29 Measure Point...

Page 31: ...gram Point 2 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 5 When the digital clock does not operate properly...

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

Page 33: ...1J 7 22 R CARBON FILM R8 9 11 14 20 1 6W 1K 5 RD AZ102J 5 23 R CARBON FILM R21 1 6W 4 7K 5 RD AZ472J 1 24 R CARBON FILM R15 17 1 6W 10K 5 RD AZ103J 3 25 R CARBON FILM R12 1 6W 100K 5 RD AZ104J 1 26 R...

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: ...18606100 NOISE FILTER DWLF M13 1 F14 7121402511 SCREW TAPPING T2S PAN 4X25 MFZN 2 F15 3963512310 MOTOR SHADED POLE 230V 20W MW10CA M02 1 F16 3512517000 GUIDE WIND PP 1 F17 3511800300 FAN PP 30 GLASS 1...

Page 36: ...FZN 1 F44 3966031600 MOTOR SYNCRO 220 240V 50 60HZ ST 16 MN73MQAD A 1 F45 3518907100 THERMOSTAT OFF 95 ON 85 H 187 NO 1 F46 3513003410 HOLDER THERMOSTAT PP BK 1 F47 7272400811 SCREW TAPTITE TT3 TRS 4X...

Page 37: ...S M NO DAEWOO ELECTRONICS CORP 1 2 Jeo dong 1 il ga Jung gu Seoul Korea C P O BOX 8003 SEOUL KOREA TELEX DWELEC K28177 8 CABLE DAEWOOELEC PRINTED DATE Sep 2010...

Page 38: ...C CR RE EA AT TI IV VE E I IN NC C 6 4 ABOUT THIS MANUAL ABOUT THIS MANUAL M O D E L KOG 8B5R5S W S M 2010 09 08 1 2 3 4 5 MEMO 37p VISION TEL 730 0660 FAX 730 3788 10 09 08 3p 4p 11p 13p 17p 26p 32p...

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