DAEWOO ELECTRONICS KOG-131A9A11 User Manual Page 1

Service ManualMicrowave OvenModel: KOG-131A9A11DAEWOO ELECTRONICS CORP.S/M No. : G131A9A11001http : //svc.dwe.co.kr Nov. 2002✔ Caution: In this Manual

10DISASSEMBLY AND ASSEMBLY- Cautions to be observed when trouble shooting.Unlike many other appliances, the microwave oven is high-voltage, high-curre

111. 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

123. To remove door parts. REF NO. PART CODE PART NAME DESCRIPTION Q’TY A01 3512204500 FRAME DOORABS XR-401, SR-0320M1A02 3517006500 BARRIER SCREEN *

134. 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 stopper hi

145. To remove control panel parts.(1) Remove the screw which secure the control panel, push up two snap fits and draw forward the control panel assem

15NOTE : Never install the magnetron without the metallic gasket plate which is packed with each magnetron toprevent microwave leakage. Whenever repai

169. 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 fro

1711. To remove insulator Heater assembly. 1) Remove the HEX NUT (F09).2) Remove the two HEX NUTS (F43).3) Remove the insulator Heater assembly (C00).

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

19TROUBLE SHOOTING GUIDE Following the procedure below to check if the oven is defective or not.1) Check grounding before trouble checking.2) Be caref

2PRECAUTIONS TO BE OBSERVED BEFORE ANDDURING SERVICING TO AVOID POSSIBLEEXPOSURE TO EXCESSIVE MICROWAVE ENERGY(a)Do not operate or allow the oven to b

20CONDITION CHECKCheck continuity of magnetronDefectivemagnetronRESULTNoContinuityCAUSE REMEDYReplaceOutlet haspropervoltage Fusedoes notblow.CONDITIO

21CONDITION CHECK RESULTCheck continuity of high voltage capacitor terminalswith wires removedContinuityCAUSEDefective highvoltagetransformerREMEDYRep

22(TROUBLE 4) The following visual conditions indicate a probable defective touch control circuit or membrane switchassembly1. Incomplete segments,1)

23MEASUREMENT AND TEST1. MEASUREMENT OF THE MICROWAVE POWER OUTPUT Microwave output power can be checked by indirectly mmeasuring 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

28MP1MP2Mesure point

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

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

302. P.C.B. CIRCUIT DIAGRAM

31NO NAME SYMBOL SPECIFICATION PART CODE Q’TY1 BUZZER BZ1 BM-20K 3515600100 12 C ARRAY CA1 7P(6) 102 M 50V CN6XB-102M 13 CAPACITOR ELEC EC1 50V RS 1µF

32EXPLODED VIEW AND PARTS LIST1. DOOR ASSEMBLYRefer to Disassembly and assembly2. CONTROL PANEL ASSEMBLYRefer to Disassembly and assembly3. TOTAL ASSE

33REF NO PART CODE PART NAME DESCRIPTION Q'TYA00 3511713500 DOOR AS KOR-131G0A 1B00 3516726150 CONTROL PANEL AS KOG-131A9A11 1C00 3513302410 INSU

34REF NO PART CODE PART NAME DESCRIPTION Q'TYF34 3513601500 LAMP BL 125V 25W T25 C5A H187 1F35 7121400611 SCREW TAPPING T2S PAN 4X6 MFZN 1F36 396

S/M NO. : G131A9A11001DAEWOO ELECTRONICS CORP.686, AHYEON-DONG MAPO-GU SEOUL, KOREAC.P.O. BOX 8003 SEOUL, KOREATELEX: DWELEC K28177-8CABLE: “DAEWOOEL

4SPECIFICATIONSMODEL KOG-131A9A11POWER SUPPLY 120V~60HZ, SINGLE PHASE WITH EARTHINGPOWER MICROWAVE 1350WCONSUMPTION GRILL 1150WMICROWAVE ENERGY OUTPUT

5EXTERNAL VIEW563 4183181. OUTER DIMENSION

1we56r2394807q61. DOOR SEALDoor seal maintains the microwave within the oven cavity and prevents microwave leakage.2. DOOR HOOKWhen door is closed, it

7M/WDishWarmerPastaBeverageLESS MOREStop/ClearFrozenPizzaGrill DefrostFish PoultryAuto DefrostMeatAutoCook1. Bread2. Soup3. Baked Potato4. Fresh Veget

81. Steady, flat locationThis microwave oven should be set on a steady, flat surface.This microwave oven is designed for counter top use only.2. Leave

9OPERATIONS 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