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Daewoo KOR-63XQ0S Service Manual

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Service Manual
Microwave Oven
Model : KOR-63XQ0S
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.dwe.co.kr).
DAEWOO ELECTRONICS CO., LTD.
http://svc.dwe.co.kr
S/M No.: R63XQ0S001

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Summary of Contents for Daewoo KOR-63XQ0S

  • Page 1 S/M No.: R63XQ0S001 Service Manual Microwave Oven Model : KOR-63XQ0S 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.dwe.co.kr).

  • Page 2: Table Of Contents

    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. (b) Make the following safety checks on all ovens to be serviced before activating the magentron or other microwave source, and make repairs as necessary: (1) Interlock operation, (2) proper door closing, (3) Seal and sealing surfaces (arcing, wear, and other damage), (4) Damage to or loosening of hinges and latches, (5) Evidence of dropping or abuse.

  • Page 3: Safety And Precautions

    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. (only a trained service personnel should make repairs.) (1) A broken door hinge.

  • Page 4: Specifications

    SPECIFICATIONS MODEL KOR-63XQ POWER SUPPLY 230V~50Hz SINGLE PHASE WITH EARTHING MICROWAVE 1200W POWER GRILL CONSUMPTION COMBINATION MICROWAVE ENERGY OUTPUT 800W MICROWAVE FREQUENCY 2450MHz × × × × × × OUTSIDE DIMENSIONS (W 352 mm (18.3 11.0 13.9 in.) × × ×...

  • Page 5: External View

    EXTERNAL VIEW 1. OUTER DIMENSION STAGE DEFROST AUTO WEIGHT TIME START LOCK Auto Cook Menu 1. Raked Potato 2, Fresh Vegetable Weight 3. Soup 4. Fish Fillets 5. Meat Loaf Auto Def. Dinner Frozen popcorn Plate Pizza Feeding Muffin Beverage Bottle Speedy Cook Clock / A.Start...

  • Page 6: Feature Diagram

    2. FEATURE DIAGRAM 1. DOOR latch 11. Display When the door is closed it will automatically shut off. Cooking time, power level, present time are displayed. If the door is opened while the oven is operating. The 12. Speedy cook - Touch to set the any desired reheat magnetron will automatically shut off.

  • Page 7: Installation

    This appliance is supplied with cable of special type, which, if damaged, must be repaired with cable of same type. Such a cable can be purchased from DAEWOO and must be installed by a Qualified Person. 6. Examine the oven after unpacking for any damage such as: A misaligned door, broken door or a dent in cavity.

  • Page 8: Operations And Functions

    OPERATIONS AND FUNCTIONS Connect the main lead to an electrical outlet. 2. After placing the food in a suitable container, open the oven door and put it on the glass tray. The glass tray must always be in place during cooking. 3.

  • Page 9: Disassembly And Assembly

    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. You are asked to observe the following precautions carefully.
  • Page 10 1. To remove cabinet 1) Remove three screws on cabinet back. 2) Push the cabinet backward. 2. To remove door assembly 1) Remove a screws which secure the stopper hinge top. 2) Remove the door assembly from top plate of cavity. 3) Reverse the above for reassembly.
  • Page 11 In this Service 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.dwe.co.kr) 3. To remove door parts. (1) KOR-63XQ0S REF.NO PART CODE...
  • Page 12 (1) Remove the gasket door from door plate. (2) Remove the barrier screen inner 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 the supporter barrier screen outer from door frame.
  • Page 13 In this Service 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.dwe.co.kr) 5. To remove control panel parts. (1) KOR-63XQ0S REF.NO PART CODE...
  • Page 14 (1) Remove the screw which secure the control panel, push up two snap fits and draw forward the control panel assembly. (2) Remove the door open lever from the control panel. (3) Remove four screws which secure the PCB assembly to control panel. (4) Disconnect membrane tail from the connector of the PCB assembly.
  • Page 15 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. 6) Remove two screws which secure the motor shaded pole.

  • Page 16: Interlock Mechanism And Adjustment

    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. (1) Primary interlock switch When the door is closed, the hook locks the oven door.

  • Page 17: Trouble Shooting Guide

    TROUBLE SHOOTING GUIDE Following the procedure below to check if the oven is defective or not. 1) Check earthing before trouble checking. 2) Be careful of the high voltage circuit. 3) Discharge the high voltage capacitor. 4) When checking the continuity of the switches, fuse or high voltage transformer, disconnect one load wire from these parts and check continuity with the AC plug removed.
  • Page 18 CONDITION CHECK RESULT CAUSE REMEDY Check continuity of Defective Outlet has Replace magnetron continuity magnetron proper voltage Fuse does not blow? Check continuity of Defective line Replace noise filter board continuity filter board Check continuity of Open power Replace power supply cord continuity supply cord Defective touch...
  • Page 19 (TROUBLE 3) No microwave oscillation even though fan motor rotates. CONDITION CHECK RESULT CAUSE REMEDY microwave Check continuity of No Continuity oscillation high voltage fuse Replace high voltage fuse Check continuity of Replace Continuity Defective high voltage capacitor high voltage terminals with wires removed transformer Replace...
  • Page 20 (TROUBLE 4) The following visual conditions indicate a probable defective touch control circuit or membrane switch assembly 1. Incomplete segments, 1) Segment missing. 2) Partical segments missing. 3) Digit flickering other than normal display slight flickering. 4) “ : 0” does not display when power is on. 2.

  • Page 21: Measurement And Test

    MEASUREMENT AND TEST 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. PROCEDURE 1. Microwave power output measurement is made with microwave oven supplied at rated voltage and operated at it is ±...

  • Page 22: Microwave Radiation Test

    2. MICROWAVE RADIATION TEST CAUTION 1. Make sure to check the microwave leakage before and after repair of adjustment. 2. Always start measuring of an unknown field to assure safety for operating personnel from microwave energy. 3. Do not place your hands into any suspected microwave radiation field unless the safe density level is known. 4.

  • Page 23: Component Test Procedure

    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. · Before touching any oven components or wiring, always unplug the oven from its power source and discharge the capacitor. 1.

  • Page 24: Wiring Diagram

    WIRING DIAGRAM...

  • Page 25: Printed Circuit Board

    PRINTED CIRCUIT BOARD CIRCUIT CHECK PROCEDURE 1. Low Voltage Transformer (DMR-602FS) check. The low voltage transformer is located on the P.C.B. Measuring condition: Input voltage: 230V / Frequency: 50Hz Voltage LOAD NO LOAD Terminal 50Hz input 27 VAC 30VAC NOTE 1.
  • Page 26 KOR-63XQ < BOTTOM VIEW > Fig. 6 Measurement Point...
  • Page 27 3) Display problems CAUSE MEASUREMENT RESULT REMEDY Defective Display Refer to “The display Replace P. C. B. trouble shooting data” assembly. below. Display layout (Top View) The display trouble shooting data DISPLAY NAME MICOM OUTPUT TROUBLE & PIN NO. IN PIN NO. STAGE 1, LOCK don’t come on.
  • Page 28 CHECK METHOD POINT STAGE RELAY “3” ON RELAY “3” OFF +12V DC (2) When touching “START” pad, oven lamp turns on. Fan motor and turntable rotate and cook indicator in display comes on. *Cause: RELAY “2” does not operate. CHECK METHOD POINT STAGE RELAY “2”...
  • Page 29 6) When the digital clock does not operate properly POINT WAVEFORM If clock does not keep exact time, you must check resistor R21, R22 and capacitor C5.

  • Page 30: Pcb Circuit Diagram

    2. P. C. B. CIRCUIT DIAGRAM(Q-TYPE)
  • Page 31 3. COMPONENT INFORMATION 1) Transistor 2) Diode and Zener Diode 2) Digital Transistor RESTOP TYPE Ω Ω 4.7K 4.7K KRC 106M Ω KRA 110A 4.7K...

  • Page 32: Location No

     Caution: In this Service 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.dwe.co.kr) 5. P. C. B. LOCATION No. PART NAME REF NO.

  • Page 33: Exploded View And Parts List

    EXPLODED VIEW AND PARTS LIST 1. DOOR ASSEMBLY Refer to Disassembly and assembly. 2. CONTROL PANEL ASSEMBLY Refer to Disassembly and assembly. 3. TOTAL ASSEMBLY...
  • Page 34  Caution: In this Service 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.dwe.co.kr) REF.NO PART CODE PART NAME DESCRIPTION Q’TY...
  • Page 35  Caution: In this Service 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.dwe.co.kr) REF.NO PART CODE PART NAME DESCRIPTION Q’TY...
  • Page 36 DAEWOO ELECTRONICS CO., LTD. 686, AHYEON-DONG MAPO-GU SEOUL, KOREA C.P.O BOX 8003 SEOUL, KOREA TELEX: DWELEC K28177-8 CABLE: “DAEWOOELEC” S/M NO. : R63XQ0S001 PRINTED DATE: DEC, 2001...

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