Daewoo KOC-970T1S Service Manual

Service ManualModel: KQG-1N1AS Microwave Oven & GrillOct. 2009S/M No. : G867T9A001• Caution:In this Manual, some parts can be changed for improvi

101. To remove cabinet 1) Remove three screws on cabinet back.2) Push the cabinet backward.2. To remove door assembly1) Remove two screws which secur

113. To remove door parts. (1) Remove the gasket door from the door painting as.(2) Remove the barrier screen*i from the door painting as.(3) Remove t

124. 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 on the stopper

135. To remove control panel parts. B01B02B03B04B05B06B07(1) Remove the screw which secure the CONTROL-PANEL, push up two snap fits and draw forward t

146. To remove high voltage capacitor. 1) Remove the screw which secure the grounding ringterminal of the H.V. diode and the capacitor holder.2) Remov

159. To remove H.V.transformer.1) Remove four screws holding the H.V.transformer.2) Remove the H.V.transformer.3) Reverse the above steps for reassemb

1610. To remove tray motor.1) Remove the coupler in the cavity.2) Turn the set upside down.3) Cut the tray motor cover part from the base plate.4) Rem

1712. To remove heater partsC01 C02 C03 C04 C05C01 3512765100 HARNESS HEATER KOC-970T1S TEFLON 1C02 7S312X40A1 SCREW TAPPING T1 TRS 4X10 SE MFZN 2C03

18INTERLOCK MECHANISM AND ADJUSTMENTThe door lock mechanism is a device which has been specially designed to completely eliminate microwave radiation

19(TROUBLE 1) Oven does not operate at all ; any inputs can not be accepted.TROUBLESHOOTING GUIDE CONDITION CHECKCheck continuity of interlockmonitor

1PRECAUTIONS TO BE OBSERVED BEFORE ANDDURING SERVICING TO AVOID POSSIBLEEXPOSURE TO EXCESSIVE MICROWAVE ENERGY(a)Do not operate or allow the oven to b

20CONDITION CHECKDisplay do not showncountdownMalfunction ofD.O.M switchRESULT CAUSE REMEDYReplaceOutlet haspropervoltage Fusedoes notblow.Check conti

21(TROUBLE 3) No microwave oscillation even though fan motor rotates.CONDITION CHECK RESULTCheck continuity of high voltage capacitor terminalswith

22(TROUBLE 4) The following visual conditions indicate a probable defective touch control circuit1. Incomplete segments,1) Segments missing.2) Partica

23MEASUREMENT AND TEST1. MEASUREMENT OF THE MICROWAVE POWER OUTPUT Microwave output power can be checked by indirectly measuring the temperature rise

242. MICROWAVE RADIATION TESTPROCEDURE1. Prepare Microwave Energy Survey Meter, 600cc glass beaker, and glass thermometer 100°C (212°F).2. Pour 275cc

253. COMPONENT TEST PROCEDURE• High voltage is present at the high voltage terminal of the high voltage transformer during any cooking cycle.• It is n

26WIRING DIAGRAM

27PRINTED CIRCUIT BOARD 1. CIRCUIT CHECK PROCEDURE1. Low voltage transformer checkThe low voltage transformer is located on the P.C.B.Measuring condit

28Measure PointMP1MP2GND

293. When there is no microwave oscillation1) When touching START pad, oven lamp does not turn on.Fan motor does not rotate, but cook indicator in dis

2SAFETY AND PRECAUTIONSCAUTION : This Device is to be Serviced Only by Properly Qualified Service Personnel. Consult the ServiceManual for Proper Ser

302. PCB CIRCUIT DIAGRAM

313. PCB LOCATION NO.1 BUZZER BZ1 BM-20K 3515600100 12C ARRAY CA1 7P(6) 1000PF M 50V CN6XB-102M 13 CAPACITOR ELEC EC1 50V RS 10uF CEXE1H100A 14 CAPACI

321. DOOR ASSEMBLYRefer to Disassembly and assembly.2. CONTROL PANEL ASSEMBLYRefer to Disassembly and assembly.3. TOTAL ASSEMBLYEXPLODED VIEW AND PART

33A00 3511727430 DOOR AS KOR-1N1A9S51 SPRAY 1B00 PKCPSWZZ50 CONTROL-PANEL AS KQG-1N1A9A52 1F01 3510810520 CABINET AS PCM 0.5T SV1401C 1F02 3516004100

S/M NO. : DAEWOO ELECTRONICS CORP.1-2, Jeo-dong 1(il)-ga, Jung-gu, Seoul, KoreaC.P.O. BOX 8003 SEOUL, KOREATELEX: DWELEC K28177-8CABLE: “DAEWOOELEC”PR

3SPECIFICATIONSMODEL KQG-1N1A9A52POWER SUPPLY 120V~60HZ, SINGLE PHASE WITH EARTHINGPOWER MICROWAVE 1500 WCONSUMPTION GRILL 1050 WMICROWAVE ENERGY OUTP

512 3 4567890qwe1 Door latch - When the door is closed, it willautomatically shut off. If the door is opened whilethe oven is operating, the magnetron

6M/W Def . Grill Timer/gMeat Poultry1. Bread 2. Soup3. Baked potato 4. Fresh Vegetable5. Frozen vegetableStopClearStartspeedy startKitch

7INSTALLATION1. Steady, flat locationThis microwave oven should be set on a steady, flat surface.This microwave oven is designed for counter top use o

8OPERATIONS AND FUNCTIONS1. Connect the main lead to an electrical outlet.2. After placing the food in a suitable container, open the oven door and pu

9Cautions to be observed when trouble shooting.Unlike many other appliances, the microwave oven is high-voltage, high-current equipment. It is complet