Daewoo KOR-161GM Service Manual

Service ManualModel: KOR-178HW Microwave Oven Jul. 2009S/M No. : OR164H9001KOR-178HS• Caution:In this Manual, some parts can be changed for improving

91. To remove cabinet 1) Remove four screws on cabinet back.2) Pull the cabinet backward.2. To remove door assembly1) Remove two screws which secure

10KOR-178HW(1) Remove the gasket door from the door painting assembly.(2) Remove the barrier screen inner from the door painting assembly.(3) Remove t

11KOR-178HS(1) Remove the gasket door from the door painting assembly.(2) Remove the barrier screen inner from the door painting assembly.(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 stopper hin

13KOR-178HW1) Remove the screw which secure the control panel, push up two snap fits and draw forward the control panel assembly.2) Disconnect wire fl

14KOR-178HS1) Remove the screw which secure the control panel, push up two snap fits and draw forward the control panel assembly.2) Disconnect wire fl

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 the screw for earthing.2) Remove the noise filter from the wind guide.3) Remove the screw which secure th

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

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

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

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

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

22MEASUREMENT AND TEST1. MEASUREMENT OF THE MICROWAVE POWER OUTPUT Microwave output power can be checked by indirectly measuring 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

25 KOR-187HWIRING DIAGRAM

261. CIRCUIT CHECK PROCEDURE1. Low voltage transformer checkThe low voltage transformer is located on the P.C.B.Measuring condition: Input voltage: 12

27Measurement pointMP1MP2GND

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

SAFETY AND PRECAUTIONS2CAUTION : This Device is to be Serviced Only by Properly Qualified Service Personnel. Consult the ServiceManual for Proper Ser

29KOR-178H

30KOR-178H1 BUZZER BZ1 BM-20K 3515600100 12C ARRAY CA1 7P(6) 1000PF M 50V CN6XB-102M 13 CAPACITOR ELEC EC1 50V RS 10UF CEXE1H100A 14 CAPACITOR ELEC EC

32KOR-168H9A27 / KOR-168H9A52EXPLODED VIEW AND PARTS LIST1. DOOR ASSEMBLYRefer to Disassembly and assembly2. CONTROL PANEL ASSEMBLYRefer to Disassembl

33A00 3511710540 DOOR AS KOR-168H9A27 1B00 PKCPSWXM10 CONTROL-PANEL AS KOR-168H9A27 1F01 3510805600 CABINET AS KOR-161G0A LOUVER 1F02 7112401011 SCREW

34A00 3511710550 DOOR AS KOR-168H9A52 1B00 PKCPSWXM40 CONTROL-PANEL AS KOR-168H9A52 1F01 3510802440 CABINET T0.6 SV 14012 1F02 7112401011 SCREW TAPPIN

S/M NO. : R161G0A001DAEWOO ELECTRONICS CORP.1-2, Jeo-dong 1(il)-ga, Jung-gu, Seoul, KoreaC.P.O. BOX 8003 SEOUL, KOREATELEX: DWELEC K28177-8CABLE: “DAE

3SPECIFICATIONSMODEL KOR-178HW / KOR-178HSPOWER SUPPLY 127V~60Hz, SINGLE PHASE WITH EARTHINGPOWERMICROWAVE 1400 WCONSUMPTIONGRILLCOMBINATIONMICROWAVE

412 3 4 56 7w890q11Door latch - When the door is closed, it willautomatically shut off. If the door is opened whilethe oven is operating, the magnetro

51 Time set pad - Used to set the cooking time and the present time.2 Display - Cooking time, power level, indicators and present time are displayed.3

6INSTALLATION1. Steady, flat locationThis microwave oven should be set on a steady, flat surface.2. Leave space behind and sideAll air vents should be

7OPERATIONS AND FUNCTIONS1. Connect the mains lead to an electrical outlet.2. After placing the food in a suitable container, open the oven door and p

8DISASSEMBLY AND ASSEMBLY- Cautions to be observed when trouble shooting.Unlike many other appliances, the microwave oven is high-voltage, high-curren