Daewoo KOG-8465 Service Manual
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Daewoo KOG-8465 Service Manual

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Service Manual

Microwave Oven

KOG-8465
 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).
Power
Timer
0
DAEWOO ELECTRONICS CO., LTD.

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  • Page 1: Microwave Oven

    : 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). Power Timer DAEWOO ELECTRONICS CO., LTD.

  • 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 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: Proper Use And Service Precautions

    PROPER USE AND SERVICE PRECAUTIONS CAUTION : This Device is to be Serviced Only by Properly Qualified Service Personnel. Consult the Service Manual for Proper Service Procedures to Assure Continued Safety Operation and for Precautions to be Taken to Avoid Possible Exposure to Excessive Microwave Energy. 1.
  • Page 4 IMPORTANT The wires in this mains lead coloured in accordance with the following code. Green-and-yellow : Earth Blue : Neutral Brown : Live As the colours of the wires in the mains lead of this appliance may not correspond with the coloured markings identifying the terminals in your plug, proceed as follows: The wire which is coloured green-and-yellow must be connected to the terminal in the plug which is marked with the letter ‘E’...

  • Page 5: Specifications

    SPECIFICATIONS Power Supply 230V~, 50Hz 240V~, 50Hz(U.K) Power Consumption 1,450 W 1,500W Microwave Output Power 900W (IEC 705) 900W (IEC 705) Frequency 2,450 MHz 2,450 MHz Grill power consumption 1,400 W 1,500W Simultaneous Heating Power Consumption 2,800 W 2,950 W Outside Dimensions (W X H X D) 501 X 319 X 389 mm (19.7 X 12.6 X 15.3 in.) Cavity Dimensions (W X H X D)

  • Page 6: Names And Function Of Parts

    NAMES AND FUNCTION OF PARTS ¤ DOOR SEAL ¤ CONTROL PANEL Door seal maintains the microwave within the ¤ GLASS TURN -TABLE TRAY oven cavity and prevents microwave leakage. Rotates during cooking and ensure even ¤Ł DOOR HOOK distribution of Microwaves. It can also be used as When door is closed, it will autoamtically lock shut.

  • Page 7: Control Panel

    CONTROL PANEL POWER OR FUNCTION SELECT KNOB - Used to select a microwave power level in M/W, GRILL or SIMUL. cooking. Power - Used to select a function before the cooking. 1) M/W oven-used to heat food with microwave. 2) GRILL-Used to browning food with grill heater.

  • Page 8: How To Set The Oven Controls

    HOW TO SET THE OVEN CONTROLS NOTE : ¡ Be sure to read the cookbook’s introduction before operating the oven. ¡ Also remember to read this operating instruction for proper safety information and instruction before using the oven. ¡ See the cookbook for specific recipes. ¡...

  • Page 9: Grill Cooking

    2. GRILL COOKING ¥ Grilling in this oven is similar to conventional broiling. ¥ There is no need to preheat the oven for griling. 1. Place food on the Metal Rack, and set it on the Tray. 2. Set POWER knob to GRILL position. 3.

  • Page 10: Combination Cooking

    2. COMBINATION COOKING ¥ This oven has 3-cooking levels in SIMUL-COOKING. ¥ You can select these levels by POWER knob. (COMBI 1) (COMBI 2) (COMBI 3) Grill Grill Grill M/W Low M/W Med Low M/W Med 1. Place food on the Metal Rack or Tray. 2.

  • Page 11: Interlock Mechanism Functions And Adjustments

    INTERLOCK MECHANISM FUNCTIONS AND ADJUSTMENTS The door lock mechanism is a device which has been specially designed to completely eliminate micreowave 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 will lock the oven door.
  • Page 12 (2) Secondary interlock switch, monitor interlock switch When the door is closed, the hook pushes the lever lock forward, and the lever presses the button of the interlock monitor switch to bring it under ‘OFF’ condition. Simultaneously, the lever lock presses the button on the secondary interlock switch to bring it under ‘ON’...

  • Page 13: Precautions For Disassembly And Repair

    PRECAUTIONS FOR DISASSEMBLY AND REPAIR - 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.

  • Page 14: Disassembly And Assembly

    DISASSEMBLY AND ASSEMBLY 1. To remove cabinet (Refer to Fig. 2) 1) Remove four screws on cabinet back. 2) Push the cabinet backward. Fig. 2 2. To remove parts of guide wind assembly (Refer to Fig.3) 1) Release the earth screw 2) Remove the noise-filter to the guide wind 3) Pull the fan...
  • Page 15 3. To remove lamp. (Refer to Fig. 4) 1) Remove a screw holding lamp to the guide air 2) Remove the lamp. 3) Reverse the above steps for reassembly. Fig. 4 4. To remove H.V. Transformer (Refer to Fig. 5) 1) Remove four screws which secure the H.V.
  • Page 16 5. To remove magnetron and magnetron thermostat. (Refer to Fig. 6) 1) Remove two screws which secure the thermostat 2) Remove the thermostat. 3) Remove three screws which secure the magnetron 4) Remove the magnetron. 5) Reverse the above steps for reassembly. Fig.
  • Page 17  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) 6. To remove parts of control panel assembly (Refer to Fig. 7.8) 1) Remove a screw holding control panel assembly to the oven front plate.
  • Page 18  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) 7. To remove door assembly (Refer to Fig. 9) 1) Remove two bolts and two nuts which secure to hinge.
  • Page 19 9. Method to reduce the gap between the door seal and the oven front surface. (1) To reduce gap located on part ‘A’. 1) Loosen a Hex Bolt on top door hinge, then push the door to contact the door seal to oven front surface.
  • Page 20 10. To remove tray motor. (Refer to Fig. 11) 1) Cut the tray motor cover parts from the base plate (Refer to Fig 11, 12). 2) Remove the tray motor cover. 3) Remove two screws which secure the tray motor to tray motor bracket.

  • Page 21: Trouble Shooting Guide

    11. To remove grill heater assembly (Refer to Fig. 13) 1) Release three hex nuts holding the Grill Heater Assembly to top and side plate. 2) Remove Grill heater Assembly. Fig. 13 TROUBLE SHOOTING GUIDE Following the procedure below to check if the oven is defective or not. 1.
  • Page 22 (TROUBLE 1) Oven does not operate at all; any inputs can not be accepted Condition Check Result Cause Remedy (COM¡ŒNC) Malfunction of Replace Fuse blows Check continuity interlock monitor of interlock monitor Continuity Note 1. switch switch with door closed (COM¡ŒNC) (COM¡ŒNC) Continuity...
  • Page 23 (TROUBEL 2) Heater does not heat (Food will not become hot). Condition Check Result Cause Remedy Malfunction of Adjust or Check continuity Grill heater primary interlock replace of primary Continuty does not heat switch interlock switch Check continuity Defective timer Replace the of heater select switch Continuity...
  • Page 24 (TROUBLE 3) No microwave oscillation even though fan motor rotates. Condition Check Result Cause Remedy (COM¡ŒNC) Fuse blows No microwave Check continuity oscillation Continuity of high voltage fuse Replace high voltage fuse Defective high Replace Check continuity Continuity voltage of high voltage capacitor transformer terminals with wires removed...

  • Page 25: Measurement

    MEASUREMENT 1. Microwave Output Power CAUTION : 1-1. Standard Method 1. Water load should be measured exactly to 1 Microwave output power can be checked by indirectly litre. measuring the temperature rise of a certain amount of 2. Input power voltage should be exactly volts as water exposed to the microwave as directed below.

  • Page 26: Microwave Leakage Test

    2-2 Judgement 3-3. Procedures The value of resistance should be applied to the value 1) Prepare 600cc glass or plastic container. specified below. 2) Pour 275 ¡ 5 millilitres of tap water initially at 68¡ 9¡£ F(20¡ 5¡£ C) in the container. Door Open Closed...

  • Page 27: Component Test Procedure

    COMPONENT TEST PROCEDURE 1. High voltage is present at the high voltage terminal of the high voltage transformer during any cook cycle. 2. It is neither necessary not advisable to attempt measurement of the high voltage. 3. Defore touching any oven components or wiring, always unplug the oven from its power source and discharge the capacitor (see page 13).

  • Page 28: Wiring Diagram

    WIRING DIAGRAM...

  • Page 29: Schematic Diagram

    SCHEMATIC DIAGRAMS IDLE CONDITION MICROWAVE COOKING CONDITION...
  • Page 30 GRILL COOKING CONDITION SIMULTANEOUS HEATING COOKING CONDITION...

  • Page 31: Wiring Diagram(Germany)

    WIRING DIAGRAM (GERMANY)

  • Page 32: Schematic Diagram(Germany)

    SCHEMATIC DIAGRAMS(GERMANY) IDLE CONDITION MICROWAVE COOKING CONDITION...
  • Page 33 GRILL COOKING CONDITION COMBI COOKING CONDITION...

  • Page 34: Exploded View

    EXPLODED VIEW...
  • Page 36  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) ƒƒ N N S UB : Substitutive PART CODE PART NAME DESCRIPTION...
  • Page 37 KOG-843KS SEE DETAIL P18 3516710620 CONTROL-PANEL AS KOG-8465 SEE DETAIL P17  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)

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