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Service Manual

Microwave Oven, Convection & Grill

KOC-1B5K

SEP. 2008

 

Содержание KOC-1B5K

Страница 1: ...Service Manual Microwave Oven Convection Grill KOC 1B5K SEP 2008...

Страница 2: ...usted 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 r...

Страница 3: ...to servicing the oven 2 If 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 r...

Страница 4: ...BINATION HEATING POWER CONSUMPTION 1600W OUTSIDE DIMENSIONS WXHXD CAVITY DIMENSIONS WXHXD 368 5X376 5X246mm 14 5X14 8X9 7inch NET WEIGHT Approx 20 5kg 45 2 lbs TIMER 60 minutes POWER SELECTIONS 10 lev...

Страница 5: ...HEATER Turns on when convection grill and combi cooking is selected 5 OVEN LAMP Automatically turns on during oven operating 6 SAFETY INTERLOCK SYSTEM 7 CONTROL PANEL 8 TURNTABLE TRAY Rotates during...

Страница 6: ...e This microwave oven requires a current of approximately 13 amperes 120V 60Hz Power supply cord is about 0 8 meters long 1 A short power supply cord is provided to reduce the risks resulting from bec...

Страница 7: ...k Press to select auto cook menu 13 Cake Press to select cake menu 14 More Use to add time to cooking 15 Less Use to reduce time from cooking 16 Stop Clear Press once to stop a program and twice to ca...

Страница 8: ...ning repair work 2 Warning about the electric charge in the high voltage capacitor For about 30 seconds after the operation has stopped electric charge remains in the high voltage capacitor When repla...

Страница 9: ...2 To remove guide wind 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 assemby NOTE After replacting the do...

Страница 10: ...4 7122401211 SCREW TAPPING T2S TRS 4X12 MFZN 2 A05 3517001100 BARRIER SCREEN O SEALING AS KOC 1B5K9S 1 A06 3515204900 STOPPER HINGE T AS KOC 1B4K0S 1 A07 3516602100 DOOR PLATE SBHG 1A T0 7 1 A08 35131...

Страница 11: ...e spring A09 and the hook A08 9 Reverse the above steps for reassembly 4 Method to reduce the gap between the door seal and the oven front surface 1 To reduce gap located on part A Loosen two screws o...

Страница 12: ...he above steps for reassembly KOC 1B5K REF NO PART CODE PART NAME DESCRIPTION Q TY REMARK B01 3515501820 WINDOW DISPLAY PMMA 1 B02 3516724160 C PANEL ABS SG 0760D SG 175 1 B03 3516908390 BUTTON FUNCTI...

Страница 13: ...normally closed Magnetron antenna MAGNETRON 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...

Страница 14: ...assembly 3 Pull the fan from the motor shaft 4 Remove two screws which secure the motor shaded pole 5 Remove the motor shaded pole 6 Reverse the above steps for reasembly 9 To remove H V transformer...

Страница 15: ...om Cover heater t 7 Remove Heater miraclon from Cover Heater t REF NO PART CODE PART NAME DESCRIPTION Q TY REMARK 1 7S312X40A1 SCREW TAPPING T1 TRS 4 10 MFZN 1 2 3512520500 GUIDE AIR OUTLET SA1D 80 T0...

Страница 16: ...4 Detach Lamp from Holder lamp as 5 Pull out Cover lamp from Cover lamp 6 Reverse the above steps for reassembly REF NO PART CODE PART NAME DESCRIPTION Q TY REMARK 1 3511407800 COVER LAMP STS430 T0 5...

Страница 17: ...REF NO PART CODE PART NAME DESCRIPTION Q TY REMARK 1 7S312X40A1 SCREW TAPPING T1 TRS 4 10 MFZN 2 2 3511407300 COVER MOTOR B SA1D 80 T0 5 1 3 7S312X40A1 SCREW TAPPING T1 TRS 4 10 MFZN 2 4 3511407400 C...

Страница 18: ...ssembly 4 Remove a screw 5 Pull out Heater U from Cover heater u 6 Reverse the above steps for reassembly CUTTING 6EA 1 2 3 4 5 REF NO PART CODE PART NAME DESCRIPTION Q TY REMARK 1 7S312X40A1 SCREW TA...

Страница 19: ...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 secondary interlock switc...

Страница 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...

Страница 21: ...st 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 Chec...

Страница 22: ...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...

Страница 23: ...e 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 con...

Страница 24: ...ction of sub pcb assembly RESULT Normal CAUSE REMEDY Replace sub pcb assembly Display does not show programming at all even if keyboard is touched TROUBLE 7 The following visual conditions indicate a...

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

Страница 26: ...or the water temperature to attain 20 C 2 C is measured The oven is then switched off and the final water temperature is measured within 60s NOTE 1 The water stirred is before its temperature is measu...

Страница 27: ...et 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 is...

Страница 28: ...ding Meter with 6V 9V or higher voltage batteries should be used to check the front back resistance of the diode otherwise an infinite resistance may be read in both directions A normal diode s resist...

Страница 29: ...DE 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 VEGETABLES...

Страница 30: ...29 10 WIRING DIAGRAM...

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

Страница 32: ...MOTOR SYNCRO 120V 60HZ 2W KX63MQ2AD 1 F18 7121400611 SCREW TAPPING T2S PAN 4X6 MFZN 1 F19 3517401900 COUPLER PTFE 1 F20 3511408300 COVER WAVE GUIDE MICA 1 F21 3516112200 CAVITY AS KOC 1B0K0S 1 F22 712...

Страница 33: ...F63 3518904400 THERMOSTAT OFF 120 ON 60 VN 187 1 F64 7S312X40A1 SCREW SPECIAL T1 TRS 4X10 SE MFZN 4 3510803330 PCM T0 6 SV1401C KOC 1B0K9A27 F65 3510803320 CABINET PCM HL 1 KOC 1B4K9A27 3510805100 KO...

Страница 34: ...e 2 The allowable tolerance of the secondary voltage is within 5 of nominal voltage NOTE Each measure point must be measured with GND points The marks of the above corresponding voltage 5V 24V are wri...

Страница 35: ...e does not rotate but cook indicator in display comes on Cause RELAY 1 does not operate 3 When touching M W button fan motor does not rotate but turntable rotates oven lamp turns on and cook indicator...

Страница 36: ...motor and turntable 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 mo...

Страница 37: ...opened during operation the count down timer does not stop 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 Replace door...

Страница 38: ...37 13 P C B CIRCUIT DIAGRAM A B...

Страница 39: ...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...

Страница 40: ...13 P C B CIRCUIT DIAGRAM 39...

Страница 41: ...RD AZ473J 1 31 RESISTOR R19 1 4W 1K Ohm 5 RD 4Z102J 1 32 RESISTOR R23 1 2W 270 Ohm 5 RD 2Z271JS 1 33 RESISTOR R24 1 2W 27 Ohm 5 RD 2Z270JS 1 34 RESISTOR R21 R22 1 2W 200 Ohm 5 RD 2Z201JS 2 35 RESISTO...

Страница 42: ...S M NO 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 Sep 2008...

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