DAEWOO ELECTRONICS KOC-9Q0T7S Service Manual Download

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Service Manual

Microwave Oven

Model: KOC-9Q0T7S

S/M No. :

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).

OC9Q0T7S001

Summary of Contents for KOC-9Q0T7S

Page 1: ...008 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 i...

Page 2: ...for proper alignment integrity and connections d Any defective or misadjusted components in the interlock monitor door seal and microwave generation and transmission systems shall be repaired replaced...

Page 3: ...ertified oven unit is found to servicing a microwave emission check should be performed prior to servicing the oven 1 inform the manufacturer importer or assembler 2 repair the unit at no cost to the...

Page 4: ...705 MICROWAVE FREQUENCY 2450MHz OUTSIDE DIMENSIONS W X D X H 513X401X311mm 20 2X15 8X12 2 in CAVITY DIMENSIONS W X D X H 354X341X231mm 13 9X13 4X9 1 in NET WEIGHT Approx 16 6Kg 46 6 lbs TIMER 60 minu...

Page 5: ...4 3 EXTERNAL VIEW 513 311 401 1 OUTER DIMENSION...

Page 6: ...through the screen 14 TOP HEATER Top heater turns on if any of heater related mode operates 15 OVEN FRONT PLATE 16 CONVECTION INLET 17 OVEN LAMP Oven lamp turns on anytime the door opens and oven oper...

Page 7: ...e is supplied with cable 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 o...

Page 8: ...the oven is operating in STEAM CLEANING mode gram When blinking the oven is operating in weight input mode 2 2 Auto cook Used to cook or reheat 3 3 MW Used to set power level of the microwave 4 4 Defr...

Page 9: ...nning 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 repl...

Page 10: ...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 11: ...3512209610 FRAME DOOR ABS XR 401 SR 0320 1 3 To remove door parts 1 Remove the gasket door from door plate 2 Remove the door frame from door plate 3 Remove the stopper hinge top from door plate 4 Remo...

Page 12: ...e 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 cont...

Page 13: ...rts information please refer to PPL Parts Price List in Service Information Center http svc dwe co kr REF NO PART CODE PART NAME DESCRIPTION Q TY REMARK H34 3516737100 CONTROL PANEL AS KOC 9Q0T7S 1 B0...

Page 14: ...rmally 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 di...

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: ...ve NUT HEX at the center of the fan 3 Remove WASHER PLAIN 4 Remove two screws from the COVER FAN CONVECTION 5 Pull out the MOTOR SHADED POLE 6 Reverse the above steps for assembly REF NO PART CODE PAR...

Page 17: ...COVER HEATER from the COVER HEATER T 3 Remove the HEATER MIRACLON 4 Remove two screws from the HEATER REFLECTOR 5 Remove the HEATER REFLECTOR from the COVER HEATER T 6 Reverse the above steps for rea...

Page 18: ...kr 12 To remove guide air assembly parts 1 Remove a screw from the GUIDE AIR 2 Remove the HOLDER HEATER from the GUIDE AIR 3 Remove the HEATER U 4 Reverse the above steps for reassembly REF NO PART CO...

Page 19: ...the lock lever downward The hook presses the button of the interlock monitor switch to bring it under OFF condition NO position and the lock lever presses the button of the DOM switch to bring it unde...

Page 20: ...nection 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 primary an interloc...

Page 21: ...terlock mechanism and adjust 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 t...

Page 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...

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

Page 24: ...4 Display does not count down or up with time cooking or clock operation 5 Oven is programmable and cooks normally but no display shows 6 Display obviously jumps in time while counting down 7 Display...

Page 25: ...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...

Page 26: ...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...

Page 27: ...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 6V 9V or higher voltage batteries...

Page 28: ...T ACTION M W GRILL COMBI CONVECTION ROAST PORK ROAST BEEF ROAST CHICKEN BAKED FISH FRESH VEGETABLES DEFROST STEAM CLEANING WARM MANUAL MODE COOKING MODE AUTO MODE MAGNE TRON MAIN HEATER SUB HEATER CON...

Page 29: ...28 10 WIRING DIAGRAM...

Page 30: ...29 11 EXPLODED VIEW AND PARTS LIST 1 DOOR ASSEMBLY Refer to 6 Disassembly and assembly 2 CONTROL PANEL ASSEMBLY Refer to 6 Disassembly and assembly 3 TOTAL ASSEMBLY...

Page 31: ...0 LEVER LOCK POM 1 H15 4415A17352 SW MICRO VP 533A OF SPNO 187 200G 1 H16 4415A66910 SW MICRO VP 531A OF SZM V16 FA 61 2 H17 3518907020 THERMOSTAT OFF 120 ON 60 H 187 NB 1 H18 3513003410 HOLDER THERMO...

Page 32: ...MFZN 2 H42 3518003700 MAGNETRON 2M218JFL 6CF 1 H43 7272400811 SCREW TAPTITE TT3 TRS 4X8 MFZN 3 H44 3512807530 HEATER T AS KOC 9Q0T7S 1 H45 3512525510 GUIDE AIR AS KOC 9Q0T7S 1 H46 7112401011 SCREW TA...

Page 33: ...ortion to 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 7 8 9...

Page 34: ...33 MEASUREPOINT MP1 MP2...

Page 35: ...n oven lamp turns on and fan motor does not rotate but cook indicator in display comes on Cause RELAY 2 does not operate Check method Check method STATE RELAY 1 ON RELAY 1 OFF POINT A 5V DC GND POINT...

Page 36: ...TATE RELAY 3 ON RELAY 3 OFF POINT A 5V DC GND POINT B GND 12V DC RY3 GRILL D7 Q8 R16 Q7 24 P11 B A 5 Case of no heating of top heater sub When touching GRILL or COMBI or CONVECTION button oven lamp tu...

Page 37: ...timer does not stop POINT STATE DOOR OPEN DOOR CLOSED A OPEN CLOSE B 5V DC GND CN1 YW396 02V D O M SW 1 2 V2 R9 R10 47K R11 10K C1 104Z 28 P32 4 7K V1 Q6 A1266Y V1 D6 1N4148 A B CHECK NO METHOD REMED...

Page 38: ...37 13 P C B CIRCUIT DIAGRAM...

Page 39: ...R22 24 R27 29 RD AZ103J R CARBON FILM 1 6 10K OHM 5 8 24 R10 30 RD AZ473J R CARBON FILM 1 6 47K OHM 5 2 25 R17 RD AZ105J R CARBON FILM 1 6 1M OHM 5 1 26 R21 RD 4Z510J R CARBON FILM 1 4 51 OHM 5 SMALL...

Page 40: ...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 Aug 2008...

Page 41: ...KTHk8 k8l Xb b Yb Lb Ib TKb TTb TRb TXb T b TYb T6b TLb TSb RYb RSb RIb XKb XTb QWm n_ RTb KS TK RXH6b TLb TSb RKb RRb RXb R6b RLb XKb XTb XRb XXb X b XYb X6b XLb XSb QWm TLb KS TK RIHLb T6b TLb TSb...

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