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Daewoo KQG-63475SSC Service Manual

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S/M No. :
Service Manual
Microwave Oven
Model: KQG-63475SSC
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).
Jun. 2010

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Summary of Contents for Daewoo KQG-63475SSC

  • Page 1 S/M No. : Service Manual Microwave Oven Model: KQG-63475SSC 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 magnetron or other micro- wave 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 POWER SUPPLY 230V AC, 50Hz SINGLE PHASE WITH EARTHING MICROWAVE 1200 W POWER GRILL 1050 W CONSUMPTION COMBINATION 2200 W MICROWAVE ENERGY OUTPUT 800 W MICROWAVE FREQUENCY 2,450 MHz OUTSIDE DIMENSIONS (WXHXD) 465 x 279 x 360 mm CAVITY DIMENSIONS (WXHXD) 290 x 208 x 306 mm NET WEIGHT APPROX.

  • Page 5: External View

    EXTERNAL VIEW 1. OUTER DIMENSION...

  • Page 6: Features Diagram

    2. FEATURES DIAGRAM 1 Door seal - Door seal maintains the microwave 0 Roller guide - This must always be used for cooking energy within the oven cavity and prevents together with the glass cooking tray microwave leakage. q Glass cooking tray - Made of special heat resistant 2 Cover Heater glass Food in a proper receptacle is placed on this tray for cooking.

  • Page 7: Installation

    • This appliance is supplied with cable of special type, which, if samaged, 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

    OPERATION AND FUNCTIONS Connect the mains lead to an electrical outlet. After placing the food in a suitable utensil, open the oven door and put it on the glass tray. Glass tray must always be in place during cooking. Shut the door. Make sure that it is firmly closed.

  • 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 safe 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) Pull 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 reassembly.
  • Page 11 3. To remove door parts. DOOR ASSEMBLY : 3511729200 REF. NO PART CODE PART NAME DESCRIPTION Q'TY REMARK 3511718000 DOOR SUB AS KOR-634R0S 3517005620 BARRIER-SCREEN*O TEMP GLASS T3.2 3515204100 STOPPER HINGE*T AS KOR-63150S 3511719500 DOOR PAINTING AS KOR-6C0B5S 3517002800 BARRIER-SCREEN*I PE 0.1T 3512300210 GASKET DOOR...
  • Page 12 4. 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 the stopper hinge top, and then push the door to contact the door seal to the oven front surface.
  • Page 13 5. To remove control panel parts. B01 B03 B06 C/PANEL ASSEMBLY : 3516719050 REF. NO PART CODE PART NAME DESCRIPTION Q'TY REMARK 3516719060 CONTROL-PANEL SUB AS KOR-63470S 3513402650 KNOB VPC ABS SG-0760D SG-175 3515101600 SPRING FLAT SUS 301 T0.5 3517400510 COUPLER VPC KNOB 7122401211 SCREW TAPPING...
  • Page 14 6. To remove high voltage capacitor. 1) Remove a screw which secure the grounding 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. High voltage circuit wiring 7.
  • Page 15 8. 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 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 10. To remove tray motor. 1) Remove the coupler in the cavity. 2) Turn the set upside down. 3) Cut the tray motor cover part from the base plate. 4) Remove the tray motor cover. 5) Remove a screw which secure the tray motor. 6) Remove the tray motor.
  • Page 17 12. To remove heater parts. REF. NO PART CODE PART NAME DESCRIPTION Q'TY REMARK 3512765100 HARNESS HEATER KOC-970T1S TEFLON 7112401011 SCREW TAPPING T1 TRS 4X10 MFZN 3510607800 BRACKET HEATER *T SBHG T0.5 3512803700 HEATER MIRACLON 115V AC 500W 3511408100 COVER HEATER *T STS430 T0.5...

  • Page 18: 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 19: Troubleshooting Guide

    TROUBLESHOOTING 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. 3. Discharge the high voltage capacitor. 4. When checking the continuity of the switches, fuse or high voltage transformer, disconnect one lead wire from these parts and check continuity with the AC plug removed.
  • Page 20 Does the fan motor work when you shut the door and turn the timer? Does the oven lamp light? Replace or repair oven lamp, Does the turntable turn? turntable motor. Normal reading should be approx. 0 If microwave do not Check continuity No Continuity Continuity...

  • 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. A cylindrical container of borosilicate glass is used for the test. It has a maximum thickness of 3mm, an external diameter of approximately 190mm and a height of approximately 90mm.

  • 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.

  • Page 24: Wiring Diagram

    WIRING DIAGRAM...

  • Page 25: 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 26 3512803600 HEATER *T AS KOG-57350S 3510805300 CABINET AS 7112401011 SCREW TAPPING T1 TRS 4*10 MFZN 3516121000 CAVITY AS KQG-63475SSC 7122401211 SCREW TAPPING T2S TRS 4*12 MFZN 7122401211 SCREW TAPPING T2S TRS 4*12 MFZN 7112401011 SCREW TAPPING T1 TRS 4*10 MFZN...
  • Page 27 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). REF NO. PART CODE PART NAME DESCRIPTION...
  • Page 28 DAEWOO ELECTRONICS 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” S/M NO. : PRINTED DATE: Jun. 2010...
  • Page 29 V V I I S S I I O O N N C C R R E E A A T T I I V V E E , , I I N N C C . . 서울 종로구 통의동 6 번지 이룸빌딩 4 층 담 당 이재혁 님 M O D E L KQG-63475SSC (S/M) 접 수 2010.06.09 1차 2차 일...

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