Daewoo KOC-1B0K0S Service Manual Download Page 1

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Service Manual

Microwave Oven

Model: KOC-1B0K0S

KOC-1B2K0S

S/M No. : C1B0K0S004

Aug. 2008

✔

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).

Summary of Contents for KOC-1B0K0S

Page 1: ...C1B0K0S004 Aug 2008 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 P...

Page 2: ...justed components in 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...

Page 3: ...y 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 t...

Page 4: ...C705 MICROWAVE FREQUENCY 2450MHz OUTSIDE DIMENSIONS W X H X D 560X344X542mm 22 0X13 5X21 3 in CAVITY DIMENSIONS W X H X D 368 5X246X376 5mm 14 5X9 7X14 8 in NET WEIGHT APPROX 21 5kg 47 6 lbs TIMER 60...

Page 5: ...P Automatically turns on during oven operating 16 SAFETY INTERLOCK SYSTEM 17 CONTROL PANEL 18 TURNTABLE TRAY Rotates during cooking and ensure even distribution of Microwaves It can also be used as a...

Page 6: ...maged 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 damage such as A misalig...

Page 7: ...0 clock Use to set clock 11 less Use to remove time from cooking 12 more Use to add time to cooking 13 m w Press to select microwave power level 14 combi Press to select combi cooking mode 15 auto def...

Page 8: ...ing repair 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 replac...

Page 9: ...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 assembly NOTE After replacing the door...

Page 10: ...bly 9 A01 A02 A03 A04 A05 A06 A07 A08 A09 A10 3 To remove door parts REF NO PART CODE PART NAME DESCRIPTION Q TY REMARK A01 3512204700 FRAME DOOR PC 1 3512204720 PC SPRAY 1 KOC 1B0K0S only A02 3517006...

Page 11: ...d 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 contact the...

Page 12: ...PTION Q TY REMARK B01 3511605000 DECORATOR C PANEL ABS XR 401 H 2938 1 3511605010 ABS XR 401 SPRAY 1 KOC 1B0K0S only B02 3511605110 DECORATOR RING ABS SG 175 SG 0760D 1 B03 3515501700 WINDOW DISPLAY P...

Page 13: ...door normally closed Magnetron antenna Metallic gasket plate Cooling fin Filament terminal 6 To remove high voltage capacitor 1 Remove a screw which secure the grounding ring terminal of the H V diod...

Page 14: ...ssembly 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 r...

Page 15: ...bove steps for reassembly 10 To remove Lamp assembly parts 1 2 3 4 6 7 8 5 9 REF NO PART CODE PART NAME DESCRIPTION Q TY REMARK 1 7112401011 SCREW TAPPING T1 TRS 4X10 MFZN 1 2 3512520500 GUIDE AIR OUT...

Page 16: ...miraclon7 from the Cover heater t8 7 Reverse the above steps for reassembly 1 2 3 4 6 7 8 5 REF NO PART CODE PART NAME DESCRIPTION Q TY REMARK 1 7112401011 SCREW TAPPING T1TRS 4X10 MFZN 1 2 3512520500...

Page 17: ...0 9 12 8 7 13 14 15 16 17 18 6 5 4 3 2 1 REF NO PART CODE PART NAME DESCRIPTION Q TY REMARK 1 7S312X40A1 SCREW SPECIAL T1 TRS 4 10 SE MFZN 2 2 3511407300 COVER MOTOR B SBHG T0 6 1 3 7S312X40A1 SCREW S...

Page 18: ...rom the Cover heater U 2 6 Reverse the above steps for reassembly 13 To remove Motor synchro And Under heater assembly parts 5 4 3 2 1 CUTTING 6EA REF NO PART CODE PART NAME DESCRIPTION Q TY REMARK 1...

Page 19: ...switch When the door is closed the hook pushes the lock lever downward The lock lever presses the button of the interlock monitor switch to bring it under OFF condition and presses the button of the s...

Page 20: ...n 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 secondar...

Page 21: ...just for adjustment instructions TROUBLE 2 Display shows all figures selected but oven does not start cooking even though desired program and time are set and start button is tapped CONDITION CHECK Ch...

Page 22: ...ctive magnetron Replace Check resistance of primary and secondary coil of high voltage transformer 0 or Defective high voltage transformer Replace Check continuity of high voltage fuse No continuity R...

Page 23: ...Check continuity of heater Defective heater No continuity Replace TROUBLE 5 1 Convection heater is not heated food will not become hot 2 Convection fan motor does no rotate CONDITION CHECK Check conti...

Page 24: ...ub assembly Display does not show programming at all even if keyboard is touched TROUBLE 7 The following visual conditions inditions indicate a probable defective touch control Circuit or button P C B...

Page 25: ...tinuity of thermistor resistance of thermistor Replace RESULT 0 or infinite Replace ERROR 2 ERROR 3 come on display Check continuity of heater convection upper lower Defective touch control circuit Re...

Page 26: ...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 27: ...abinet 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 see...

Page 28: ...ter 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 500V dc or higher voltage batterie...

Page 29: ...ODE COMBI 4 COMBI 5 CONVECTION100 130 CONVECTION140 150 CONVECTION160 250 ONE CAKE BREAD TOUCH CRUSTY ROAST BEEF ROAST CHICKEN ROAST PORK BAKED FISH AUTO BAKED POTATO MODE ROAST POTATO FRESH VEGETABLE...

Page 30: ...29 10 WIRING DIAGRAM KOC 1B0K0S 1B2K0S...

Page 31: ...30 11 EXPLODED VIEW AND PARTS LIST 11 1 DOOR ASSEMBLY Refer to 6 Disassembly and assembly 11 2 CONTROL PANEL ASSEMBLY Refer to 6 Disassembly and assembly 11 3 TOTAL ASSEMBLY...

Page 32: ...FZN 1 F13 3511407500 COVER HEATER U STS430 1 F14 7S312X40A1 SCREW TAPPING T1 TRS 4X10 SE MFZN 1 F15 3515304000 SUPPORTER HEATER U STS 430 1 F16 3512802000 HEATER U 230V 400W R18374001 1 F17 7113400814...

Page 33: ...OTOR SHADED POLE 230V 25W MW15CA B01 1 F51 3512515300 GUIDE WIND PP GF20 1 F52 3518605001 NOISE FILTER DWLF M05 1 F53 3513003910 HOLDER LAMP AS KOC 1B0K5A 1 F54 7S312X40A1 SCREW TAPPING T1 TRS 4X10 SE...

Page 34: ...F75 3517207300 TRAY RACK AS KOC 1B0KOS 120MM 1 F76 3517207310 TRAY RACK AS KOC 1B0KOS 30MM 1 F77 3517211100 TRAY METAL AS KOC 1B0K0S 1 F78 3512521000 GUIDE ROLLER AS KOC 1B0K0S 1 F79 3516003700 SPECI...

Page 35: ...fluctuation of power source voltage 2 The allowable tolerance of the secondary voltage is within 5 of nominal voltage NOTE Each measure point must be measured with GND points Terminal 6 7 8 9 9 10 Vo...

Page 36: ...ble motor does not rotate but cook indicator in display comes on Cause RELAY 4 does not operate Check method 3 When touching M W button oven lamp turns on and fan motor does not rotate but cook indica...

Page 37: ...tor and turntable motor rotate and cook indicator in display comes on Cause RELAY 7 does not operate 6 Case of no heating of convection grill When touching CONVECTION button oven lamp turns on and Fan...

Page 38: ...ned during operation the count down timer does not stop Check method POINT STATE DOOR OPEN DOOR CLOSED A OPEN CLOSE B 5V DC GND B A CHECK NO METHOD REMEDY 1 Check the stage ON OFF of the door open Rep...

Page 39: ...38 13 P C B CIRCUIT DIAGRAM A B...

Page 40: ...RESISTOR R2 R5 R13 R20 1 6W 1K Ohm 5 RD AZ102J 4 27 RESISTOR R6 1 6W 200 Ohm 5 RD AZ201J 1 28 RESISTOR R3 1 6W 1M Ohm 5 RD AZ105J 1 29 RESISTOR R16 1 6W 4 7K Ohm 5 RD AZ472J 1 30 RESISTOR R22 1 6W 47...

Page 41: ...S M NO C1B0K0S004 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 Aug 2008...

Page 42: ...t ti iv ve eL L i in nc cN N V T ABOUT THIS MANUAL ABOUT THIS MANUAL m o d e l kocMQbPkPsOQbRkPs HsOmI RPPTNQQNQQM Q R S T U memo vision telZ WSPMPVVP faxZ WSPMSWXX PXNPXNQYM L L L Y L QQ L QT L QU L...

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