Daewoo KOG-180AOS Service Manual

S/M No. : G370A0P001Service ManualMicrowave OvenOCT. 1999DAEWOO ELECTRONICS CO., LTDhttp : //svc.dwe.co.krModel : KO

9DISASSEMBLY AND ASSEMBLYCautions to be observed when trouble shootingUnlike many other appliances, the microwave oven is high-voltage, high-current e

10DISASSEMBLY AND ASSEMBLY1. To remove cabinet1) Remove three screws on cabinet back.2) Push the cabinet backward.2. To remove door assembly1) Remove

11DISASSEMBLY AND ASSEMBLY3. To remove door parts. (1) KOG-370A(2) KOG-390AREF. NO PART CODE PART NAME DESCRIPTION QTY REMARKA01 3512203810 FRAME DOOR

12DISASSEMBLY AND ASSEMBLY1) Remove the gasket door from door weld as.2) Remove the barrier screen inner from door weld as.3) Remove the door frame fr

13DISASSEMBLY AND ASSEMBLY5. To remove control panel parts.(1) KOG-370A(2)KOG-390AREF.NO PART CODE PART NAME DESCRIPTION QTY REMARKB01 3518521620 SWIT

14DISASSEMBLY AND ASSEMBLY1) Remove the screw which secure the control panel, push up two snap fits and draw forward the control panel assembly.2) Rem

15DISASSEMBLY AND ASSEMBLY8. To remove wind guide assembly.(1) Remove a screw which secure the wind guide assembly.(2) Draw forward the wind guide ass

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)

1712. To remove heater parts. REF.NO PART CODE PART NAME DESCRIPTION QTY REMARKC01 7392500008 NUT HEX 6N-2-5 SUS 1C02 3515000600 SPACER INSULATOR *I C

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

1TABLE OF CONTENTSSAFETY AND PRECAUTIONS... 21

19TROUBLE SHOOTING GUIDEFollowing the procedure below to check if the oven is defective or not.1) Check earthing before trouble checking.2) Be careful

20TROUBLE SHOOTING GUIDE( TROUBLE 2 ) Display shows all figures selected, but oven does not start cooking, even though desiredprogram and time are set

21TROUBLE SHOOTING GUIDE( TROUBLE 3 ) No microwave oscillation even though fan motor rotates.CONDITIONCHECK RESULTContinuityContinuity inbackwarddirec

22TROUBLE SHOOTING GUIDE( TROUBLE 4 ) The following visual conditions indicate a probable defective touch control circuit or membraneswitch assembly1.

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

24MEASUREMENT AND TEST2. MICROWAVE RADIATION TESTPROCEDURE1. Prepare Microwave Energy Survey Meter, 600cc glass beaker, and glass thermometer 100°C (2

25MEASUREMENT AND TEST3. COMPONENT TEST PROCEDURE¢º High voltage is present at the high voltage terminal of the high voltage transformer during any co

26WIRING DIAGRAM

27PRINTED CIRCUIT BOARD1. CIRCUIT CHECK PROCEDURE1. Low voltage transformer checkThe low voltage transformer is located on the P.C.B.Measuring conditi

28PRINTED CIRCUIT BOARDMP1MP2Measure Point

2SAFETY AND PRECAUTIONS1. FOR SAFE OPERATIONDamage that allows the microwave energy (that cooks or heats the food) to escape will result in poor cooki

29PRINTED CIRCUIT BOARD3. When there is no microwave oscillation1) When touching START pad, oven lamp does not turn on.Fan motor do not rotate, but co

30PRINTED CIRCUIT BOARD2. P.C.B. CIRCUIT DIAGRAM

31PRINTED CIRCUIT BOARD3. P.C.B. LOCATION NO(1) KOG-370A NO NAME SYMBOL SPECIFICATION PART CODE Q'TY1 BUZZER BZ1 BM-20K 3515600100 12 C ARRAY CA1

32(2) KOG-390ANO 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 EL

33EXPLODED VIEW AND PARTS LIST1. DOOR ASSEMBLYRefer to Disassembly and assembly.2. CONTROL PANEL ASSEMBLYRefer to Disassembly and assembly.3. TOTAL AS

34EXPLODED VIEW AND PARTS LIST(1) KOG-370A- PART RECOMENDED FOR STOCKREF NO PART CODE PART NAME DESCRIPTION Q'TYA00Refer to disassembly and

35F33 4415A66910 SW MICRO VP-531A-OF/SZM-V16-FA-61 1F34 4415A17352 SW MICRO VP-533A-OF SPNO #187 200G 2F35 3513702600 LEVER LOCK POM 1F36 3513811700 L

36(2) KOG-390A- PART RECOMENDED FOR STOCKREF NO PART CODE PART NAME DESCRIPTION Q'TYA00Refer to disassembly and assemblyDOOR AS Refer to dis

37F33 4415A66910 SW MICRO VP-531A-OF/SZM-V16-FA-61 1F34 4415A17352 SW MICRO VP-533A-OF SPNO #187 200G 2F35 3513702600 LEVER LOCK POM 1F36 3513811700 L

DAEWOO ELECTRONICS CO., LTD686, AHYEON-DONG MAPO-GUSEOUL, KOREAC.P.O. BOX 8003 SEOUL, KOREATELEX : DWELEC K28177-8CABLE : “DAEWOOELEC”E-mail : G7F00E@

3SPECIFICATIONS ¢ÀSPECIFICATIONS ARE SUBJECT TO CHANGE WITHOUT NOTICE.MODEL KOG-370A KOG-390APOWER SUPPLY 220V,60Hz, SINGLE PHASE WITH EARTHINGPOWERCO

4EXTERNAL VIEW1. OUTER DIMENSION465/495279/294360/388

5EXTERNAL VIEW2. FEATURE DIAGRAM1. DOOR SEAL - Door seal maintains the microwave energy within the oven cavity and prevents microwave leakage.2. REFLE

6EXTERNAL VIEW3. CONTROL PANEL1. TIME SET PAD - Used to set the cooking time and the present time.2. DISPLAY - Cooking time, power level, indicators a

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