Benutzeranleitung / Produktwartung KOC-1B0K0S des Produzenten Daewoo
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Service Manual Microwave Oven Model : KOC-1B0K0S http : //svc.dwe.co.kr Nov. 2000 DAEWOO ELECTRONICS CO., LTD. S/M No. : C1B0K0S002 ✔ Caution : In this Manual, some parts can be changed for improving, their performance without notice in the parts list.
1 PRECAUTIONS TO BE OBSERVED BEFORE AND DURING SERVICING TO AVOID POSSIBLE EXPOSURE TO EXCESSIVE MICROWAVE ENERGY (a) Do not operate or allow the oven to be operated with the door open.
2 1. SAFETY AND PRECAUTIONS 1. For Safe Operation Damage that allows the microwave energy (that cooks or heats the food) to escape will result in poor cooking and may cause serious bodily injury to the operator. IF ANY OF THE FOLLOWING CONDITIONS EXIST, OPERATOR MUST NOT USE THE APPLIANCE.
3 2. SPECIFICATIONS MODEL KO C - 1B0K POWER SUPPLY 230V~50Hz, SINGLE PHASE WITH EARTHING MICROWAVE 15 00W GRILL 1600W CONVECTION 2300W POWER CONSUMPTION COMBINATION 3100W MICROWAVE ENERGY OUTPUT 1000W (IEC705) MICROWAVE FREQUENCY 2450MHz OUTSIDE DIMENSIONS (W X H X D) 560 x 344 x 542 mm ( 22.
4 3-2. FEATURE DIAGRAM 1 . Door hook – When the door is closed, it will automatically shut. If the door is opened while the oven is operating, the magnetron will immediately stop operating. 2. Door viewing screen – Allows viewing of food. The screen is designed so that light can pass through, but not the microwave.
5 4. INSTALLATION 1. Steady, flat location This microwave oven should be set on a steady, flat surface. This microwave oven is designed for counter top use only. 2. Leave space behind and side All air vents should be kept a clearance. If all vents are covered during operation, the oven may overheat and, eventually, cause failure.
6 5. CONTROL PANEL DISPLAY WINDOW 1. MICROWAVE indicator, showing microwaving in progress . 2. DEFROST indicator, showing defrosting in progress. 3. GRILL (upper grill heater) indicator , showing grilling in progress. 4. GRILL (lower grill heater) indicator, showing grilling in progress.
7 6. DISASSEMBLY AND ASSEMBLY - Cautions to be observed when trouble shooting. Unlike many other appliances, the microwave oven is high-voltage, high-current equipment. It is completely safety during normal operation. However, carelessness in servicing the oven can result in an electric shock or possible danger from a short circuit.
8 A01 1. To remove cabinet (1) Remove four screws on cabinet back. (2) Push the cabinet backward. 2. To remove door assembly (1) Remove two screws which secure the stopper hinge top. (2) Remove the door assembly from top plate of cavity. (3) Reverse the above for assembly.
9 (1) Remove the gasket door from door plate. (2) Remove a screw from door plate. (3) Remove the door frame from door plate. (4) Remove the stopper hinge top from door plate. (5) Remove the spring and the hook. (6) Remove two screws from door frame. (7) Remove the handle door and barrier screen outer from door frame.
10 5. To remove control panel parts. REF.NO PART CODE PART NAME DESCRIPTION Q ’ TY REMARK B01 351 1605000 DECORATOR C-PANEL ABS XR-401 H-2938 1 B02 3511605100 DECORATOR RING ABS SG-175 SG-0760D 1 B0.
11 6. To remove high voltage capacitor. (1) Remove a screw which secure the groun- ding ring terminal of the H.V.diode and the capacitor holder. (2) Remove the H.V. diode from the capacitor holder. (3) Reverse the above steps for reassembly. l High voltage circuit wiring 7.
12 8. To remove wind guide assembly. (1) Remove a screw for earthing. (2) Remove the noise filter from the wind guide. (3) Remove a screw which secure the wind guide assembly. (4) Draw forward the wind guide assembly. (5) Pull the fan from the motor shaft.
13 10. To remove Lamp assembly parts . REF.NO PART CODE PART NAME DESCRIPTION Q ’ TY REMARK 1 7112401011 SCREW TAPPING T1 TRS 4X10 MFZN 1 2 3512520500 GUIDE AIR OUTLET SA1D T0.5 1 3 3513302800 INSULATOR HEATER *T SBHG T0.6 1 4 7112401011 SCREW TAPPING T1 TRS 4X10 MFZN 2 5 3511407800 COVER LAMP STS430 T0.
14 11. To remove Top heater assembly parts. REF.NO PART CODE PART NAME DESCRIPTION Q ’ TY REMARK 1 7112401011 SCREW TAPPING T1 TRS 4X10 MFZN 1 2 3512520500 GUIDE AIR OUTLET SA1D T0.
15 12. To remove Rear heater assembly parts. REF.NO PART CODE PART NAME DESCRIPTION Q ’ T Y REMARK 1 7112401011 SCREW TAPPING T1 TRS 4X10 MFZN 1 2 3511407300 COVER MOTOR *B SBHG T0.6 1 3 7112401011 SCREW TAPPING T1 TRS 4X10 MFZN 2 4 3511407400 COVER *B SBHG T0.
16 13. To remove Motor synchro . And Under heater assembly parts. REF.NO PART CODE PART NAME DESCRIPTION Q ’ TY REMARK 1 7112401011 SCREW TAPPING T1 TRS 4X10 MFZN 1 2 3511407500 COVER HEATER *U STS430 T0.5 1 3 3515304000 SUPPORTER HEATER *U STS430 T0.
17 7. INTERLOCK MECHANISM AND ADJUSTMENT The door lock mechanism is a device which has been specially designed to completely eliminate microwave radiation when the door is opened during operation, and thus to perfectly prevent the danger resulting from the leakage of microwave.
18 8. TROUBLE SHOOTING GUIDE Following the procedures below to check if the oven is defective or not. 1. Check grounding before checking trouble. 2. Be careful of the high voltage circuit.
19 . Outlet has Proper voltage Fuse does not blow ? Check continuity of magnetron Defective magnetron. CONDITION RESULT REMEDY Check continuity of noise filter board Check continuity of Power supply c.
20 . Turn table motor and oven lamp do not turn on Check continuity of Primary interlock switch malfunction of primary interlock switch CONDITION RESULT REMEDY Check continuity of Secondary interlock and D.O.M switch Check D.C voltage Being supplied to RELAY(RY4) coil Malfunction Of secondary Interlock and D.
21 (TROUBLE 6) The Following visual conditions indicate a probable defective touch control Circuit or button P.C.B assembly 1. incomplete segments . 1) segment missing 2) partial segments missing 3) digit flickering other than normal fluorescent slight flickering 2.
22 TROUBLE 7 ) When “ ERROR 2 & ERROR 3 ” come on display. CONDITION CHECK RESULT CAUSE REMEDY “ ERROR2 & ERROR3 ” come on display Check continuity of thermistor ( resistance of 0 or i.
23 9 . MEASUREMENT AND TEST 9 -1. MEASUREMENT OF THE MICROWAVE POWER 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.
24 9 -2. MICROWAVE RADIATION TEST WARNING l Make sure to check the microwave leakage before and after repair of adjustment. l Always start measuring of an unknown field to assure safety for operating personnel from microwave energy. l Do not place your hands into any suspected microwave radiation field unless the safe density level is known.
25 9 -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.
2 6 9 - 4 . COMPONENT ACTION COOKING MODE MAGNE - TRON UPPE R ELEMENT LOWE R ELEMENT REA R ELEMENT CONVEC - TION FAN M/ W GRILL- 1 GRILL- 2 GRILL- 3 COMBI- 1 COMBI- 2 COMBI- 3 COMBI- 4 COMBI- 5 CONVEC.
27 10 . WIRING DIAGRAM.
28 11. EXPLODED VIEW AND PARTS LIST 11-1. DOOR ASSEMBLY Refer to 6.Disassembly and assembly. 11-2. CONTROL PANEL ASSEMBLY Refer to 6.Disassembly and assembly.
29 NO PART CORD PART NAME DESCRIPTION Q'TY A00 3511714000 DOOR AS KOC-1B0K0S 1 B00 3516724900 CONTROL PANEL AS KOC-1B0K0S 1 F01 3515202200 STOPPER HINGE *U AS KOR-121M0A 1 F02 7122400800 SCREW TAPTITE TT3 TRS 4X8 MFZN 1 F03 3510313500 BASE SBHG T0.
30 NO PART CORD PART NAME DESCRIPTION Q'TY F36 3512766800 HARNESS CONVECTION-A KOC-1B0K0S 1 F37 3511407700 COVER HEATER *B SA1D T0.5 1 F38 3513302900 INSULATOR HEATER *B SA1D T0.
31 NO PART CORD PART NAME DESCRIPTION Q'TY F73 3514801400 SENSOR TEMPERATURE PTM-K312-D7 1 F74 3512767000 HARNESS HEATER KOC-1B0K0S 1 F75 3517207300 TRAY RACK AS KOC- 1B0K OS 1 20 MM 1 F76 3517207310 TRAY RACK AS KOC- 1B0K OS 30 MM 1 F77 3517207200 TRAY METAL SPP T0.
3 2 12 . PRINTED CIRCUIT BOARD 1. CIRCUIT CHECK PROCEDURE 1) Low voltage transformer check The low voltage transformer is located on the P .C.B. Measuring condition: Input voltage: 23 0 V / Frequency:.
33 3 ) Case of no microwave oscillation (1) When touching M/W button , oven lamp turn s on and Fan motor and turntable rotate, and cook indicator in display comes on.
34 4 ) Case of no heating of upper grill When touching GRILL1 & COMBI button , oven lamp turns on and fan motor and turntable motor rotate and cook indicator in the display comes on.
35 STATE POINT A POINT B REL AY 3 ON + 5V DC GND REL AY 3 OFF GND + 2 4 V DC 7 ) Case of no stopping of the count do wn timer When the door is opened during operation, the count down timer does not stop.
36 13 . P.C.B. CIRCUIT DIAGRAM.
PCB ASS ’ Y PART LIST 37 NO NAME SYMBOL SPECIFCATION PART CODE Q'TY 1 PCB MAIN M223 95.5 X 197 3514322300 1 2 PCB SUB M224 90 X 197 3514322310 1 3 BUZZER BZ1 BM-20K 3515600100 1 4 CAPACITOR CER.
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