Daewoo EW13F1ST Service Manual

Service ManualMicrowave OvenModel: KOR-1B4H0AKOR-1B4H9A04DAEWOO ELECTRONICS CO., LTD.S/M No. : R1B4H0A002http : //svc.dwe.co.kr Mar. 2002MCD1311STEW1

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 REMARKA01 3512604200 HANDLE DOOR ALUMINUM 1A02 3515307400 SUPPORTER HANDLE KOC

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.REF NO. PART CODE PART NAME DESCRIPTION Q’TY REMARKB01 3518523400 SWITCH MEMBRANE KOR-1B4H0A 1B02 3511607600 DECORA

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

168. 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

17INTERLOCK MECHANISM AND ADJUSTMENT The door lock mechanism is a device which has been specially designed to completely eliminate microwave radiation

18TROUBLE SHOOTING GUIDE Following the procedure below to check if the oven is defective or not.1) Check grounding before trouble checking.2) Be caref

19CONDITION CHECKCheck continuity of magnetronDefectivemagnetronRESULTNoContinuityCAUSE REMEDYReplaceOutlet haspropervoltage Fusedoes notblow.CONDITIO

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 CHECK RESULTCheck continuity of high voltage capacitor terminalswith wires removedContinuityCAUSEDefective highvoltagetransformerREMEDYRep

21(TROUBLE 4) The following visual conditions inditions indicate a probable defective touch control circuit ormembrane switch assembly1. Incomplete se

22MEASUREMENT AND TEST1. MEASUREMENT OF THE MICROWAVE POWER OUTPUT Microwave output power can be checked by indirectly mmeasuring the temperature rise

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

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

25WIRING DIAGRAM KOR-1B4H0A

26KOR-1B4H9A04

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 do not rotate, but cook indicator in displ

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 3511716000 DOOR AS KOR-1B4H0A 1B00 3516727200 CONTROL PANEL AS KOR-1B4H0A 1F01 3510806800 CABINE

34REF NO PART CODE PART NAME DESCRIPTION Q'TYF28 3513702100 LEVER SW MICRO POM 1F29 4415A17352 SW MICRO VP-533A-OF SPNO #187 200G 1F30 4415A66600

S/M NO. : R1B4H0A002DAEWOO ELECTRONICS CO., LTD.686, AHYEON-DONG MAPO-GU SEOUL, KOREAC.P.O. BOX 8003 SEOUL, KOREATELEX: DWELEC K28177-8CABLE: “DAEWOO

4SPECIFICATIONSMODEL KOR-1B4H0A KOR-1B4H9A04POWER SUPPLY 120V~60HZ, SINGLE PHASE WITH EARTHINGMICROWAVE 1500 W 1400 WPOWERGRILL CONSUMPTIONCOMBINATION

5EXTERNAL VIEW560 4713441. OUTER DIMENSION

87604139 5261. DOOR SEALDoor seal maintains the microwave within the oven cavity and prevents microwave leakage.2. DOOR HOOKWhen door is closed, it wi

7M/WPOPCORNFROZENPIZZADINNERPLATEDEF TIMER LOCK lbMORE LESSPOWER1234567890DEFROSTSTOP/CLEARSTART/SPEEDY COOKBEVERAGEFRESHVEGETABLEFROZENVEGETABLEMEATK

8INSTALLATION1. Steady, flat location.This microwave oven should be set on a steady, flat surface.2. Leave space behind and side.All air vents should

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