Gebruiksaanwijzing /service van het product KOC-9Q4T van de fabrikant Daewoo
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Ser vice Manual Micr owave Oven Model: KOC-9Q4T S/M No. : Mar. 2010 ✔ Caution : In this Manual, some parts can be changed for improving, their performance without notice in the parts list. So, if you need the latest parts information, please refer to PPL(Parts Price List) in Service Information Center (http://svc.
3 MODEL KOC-9Q3T7S POWER SUPPLY 230V~50Hz, SINGLE PHASE WITH EARTHING MICROWAVE 1400W POWER GRILL 1250W CONSUMPTION CONVECTION 1250W COMBINATION 2700W MICROWAVE ENERGY OUTPUT 900W (IEC 705) MICROWAVE FREQUENCY 2450MHz OUTSIDE DIMENSIONS (W X D X H) 513X382X311mm(20.
4 3. EXTERNAL VIEW 382 513 311 1. OUTER DIMENSION 1) KOC-9Q3T7S 383 513 311 2) KOC-9Q4T.
5 1 23 4 5 6 7 8 9 10 11 12 13 1 1. DOOR HOOK Hook automatically locks and holds the door when the door shuts. If the door opens while the oven is operating, the oven will stop operating immediately. 1 2. DOOR SEAL Door seal prevents the microwave leakage from the oven cavity.
8 1 1 Display : Cooking time, power level, program indicators and present time are displayed. MW ( ): When blinking, the oven is operating in MICROWAVE COOK mode. Grill ( ): When blinking, the oven is operating in GRILL mode. Combi ( ): When blinking, the oven is operating in COMBI mode.
22 8. TR OUBLESHOO TING GUIDE Following the procedure below to check if the oven is defective or not. 1) Check grounding before trouble checking. 2) Be careful of the high voltage circuit.
23 CONDITION CHECK Check continuity of magnetron Defective magnetron. RESULT No continuity CAUSE REMEDY Replace Outlet has proper voltage fuse does not blow? Check continuity of noise filter board Def.
24 TROUBLE 3) No microwave oscillation even though fan motor rotates. CONDITION CHECK RESULT Check continuity of high voltage capacitor terminals with wires removed Continuity CAUSE Defective high vol.
25 (TROUBLE 4) Grill heater (upper heater) is not heated; food will not become hot. CONDITION CHECK Check continuity of primary interlock switch Malfunction of primary Interlock switch RESULT No continuity CAUSE REMEDY CAUSE REMEDY Adjust or replace Main heater is not heated.
26 CONDITION CHECK Check each button for continuity of the button Malfunction of touch control circuit of control box sub-assembly RESULT Normal CAUSE REMEDY Replace control box sub-assembly Display does not show programming at all, even if keyboard is touched.
27 9. MEASUREMENT AND TEST 1. MEASUREMENT OF THE MICRO W A VE PO WER OUTPUT Microwave output power can be checked by indirectly measuring the temperature rise of a certain amount of water exposed to the microwave as directed below. PROCEDURE 1. A cylindrical container of borosilicate glass is used for the test.
28 2. MICRO W A VE RADIA TION TEST PROCEDURE 1. Prepare Microwave Energy Survey Meter, 600cc glass beaker, and glass thermometer 100°C (212°F). 2. Pour 275cc ± 15cc of tap water initially at 20 ± 5°C (68 ± 9°F) in the 600 cc glass beaker with an inside diameter of approx.
29 3. COMPONENT TEST PROCEDURE • High voltage is present at the high voltage terminal of the high voltage transformer during any cooking cycle. • It is neither necessary nor advisable to attempt measurement of the high voltage.
31 10. WIRING DIA GRAM.
35 1. DOOR ASSEMBL Y Refer to 6. Disassembly and assembly. 2. CONTROL P ANEL ASSEMBL Y Refer to 6. Disassembly and assembly. 3. T O T AL ASSEMBL Y 2) KOC-9Q4T H35 H37 H05 H02 H56 H57 H55 H07 H13 H15 H.
36 ✔ Caution : In this Manual, some parts can be changed for improving, their performance without notice in the parts list. So, if you need the latest parts information, please refer to PPL(Parts Price List) in Service Information Center (http://svc.
37 ✔ Caution : In this Manual, some parts can be changed for improving, their performance without notice in the parts list. So, if you need the latest parts information, please refer to PPL(Parts Price List) in Service Information Center (http://svc.
38 12. PRINTED CIRCUIT BO ARD CIRCUIT CHECK PROCEDURE 1. Low voltage transformer check The low voltage transformer is located on the P.C.B. Measuring condition: Input voltage: 230V / Frequency: 50Hz 2. Voltage Check - Key check point - Check method NOTE 1.
39 MEASUREPOINT MP1 MP2.
40 3. Case of no microwave oscillation 1) When touching M/W button, oven lamp turns on and Fan motor and turntable rotate, and cook indicator in display comes on. *Cause: RELAY 1 does not operate. 2) When touching M/W button, oven lamp does not turn on and turntable motor does not rotate but cook indicator in display comes on.
41 4. Case of no heating of top heater main. When touching GRILL or COMBI or CONVECTION button, oven lamp turns on and fan motor and turntable rotate, and cook indicator in display comes on. *Cause: RELAY 3 does not operate. STATE RELAY 3 ON RELAY 3 OFF POINT A +5V DC GND POINT B GND 12V DC RY3 (GRILL) D7 Q8 R16 Q7 24 P11 B A 5.
42 - Check method 6. Case of no stopping of the count down timer When the door is opened during operation, the count down timer does not stop. POINT STATE DOOR OPEN DOOR CLOSED A OPEN CLOSE B +5V DC GND CN1 YW396-02V D.O.M SW 1 2 V2 R9 R10 47K R11 10K C1 104Z 28 P32 4.
43 13. P .C.B. CIRCUIT DIA GRAM.
44 1 BZ1 3515600100 BUZZER BM-20K 1 2 CA1 CN5XB-102M C ARRAY 6P(5) 1000PF M 50V 1 3C 7 CCZF1H473Z C CERA 50V HIKF 0.047uF Z 1 4 C4,C6 CCZB1H102K C CERA 102K 50V AXIAL 2 5 C1~3,C5,C8,C9 CCZF1H104Z C CERA 50V HIKF 0.
S/M NO. : D AEWOO ELECTR ONICS CORP . 1-2, Jeo-dong 1(il)-ga, Jung-gu, Seoul, Korea C.P.O. BOX 8003 SEOUL, KOREA TELEX: DWELEC K28177-8 CABLE: “DAEWOOELEC” PRINTED DATE: Mar.
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