DAEWOO ELECTRONICS KOG-84CR Service Manual
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DAEWOO ELECTRONICS KOG-84CR Service Manual

DAEWOO ELECTRONICS KOG-84CR Service Manual

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Service Manual
Microwave Oven
Model: KOG-84CR
DAEWOO ELECTRONICS CO., LTD.

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Summary of Contents for DAEWOO ELECTRONICS KOG-84CR

  • Page 1 Service Manual Microwave Oven Model: KOG-84CR DAEWOO ELECTRONICS CO., LTD.

  • Page 2: Table Of Contents

    @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ ? h @ ? e @ ? h @...

  • Page 3: Proper Use And Service Precautions

    PROPER USE AND SERVICE PRECAUTIONS @ @ @ @ @ @ @ @ e ? @ @ @ @ @ @ @ @ e ? @ @ @ @ @ @ @ @ ? e @ @ @ @ @ @ @ @ e ? @ @ @ @ @ @ @ @ ? e @ @ @ @ @ @ @ @ e ? @ @ @ @ @ @ @ @ ? e @ @ @ @ @ @ @ @ e ? @ @ @ @ @ @ @ @ ? e @ @ @ @ @ @ @ @ e ? @ @ @ @ @ @ @ @ ? e @ @ @ @ @ @ @ @ e ? @ @ @ @ @ @ @ @ ? e @ @ @ @ @ @ @ @ e ? @ @ @ @ @ @ @ @ ? e @ @ @ @ @ @ @ @ e ? @ @ @ @ @ @ @ @ ? e @ @ @ @ @ @ @ @ e ? @ @ @ @ @ @ @ @ ? e @ @ @ @ @ @ @ @ e ? @ @ @ @ @ @ @ @ ? e @ @ @ @ @ @ @ @ e ? @ @ @ @ @ @ @ @ ? e @ @ @ @ @ @ @ @ e ? @ @ @ @ @ @ @ @ ? e @ @ @ @ @ @ @ @ e ? @ @ @ @ @ @ @ @ ? e @ @ @ @ @ @ @ @ e ? @ @ @ @ @ @ @ @ ? e @ @ @ @ @ @ @ @ e ? @ @ @ @ @ @ @ @ ? e @ @ @ @ @ @ @ @ e ? @ @ @ @ @ @ @ @ ? e @ @ @ @ @ @ @ @ e ? @ @ @ @ @ @ @ @ ? e @ @ @ @ @ @ @ @ e ? @ @ @ @ @ @ @ @ ? e @ @ @ @ @ @ @ @ e ? @ @ @ @ @ @ @ @ ? e @ @ @ @ @ @ @ @ e ? @ @ @ @ @ @ @ @ ? e @ @ @ @ @ @ @ @ e ? @ @ @ @ @ @ @ @ ? e @ @ @ @ @ @ @ @ e ? @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ e ? @ @ @ @ @ @ @ @ e ? @ @ @ @ @ @ @ @ ? e @ @ @ @ @ @ @ @ e ? @ @ @ @ @ @ @ @ ? e @ @ @ @ @ @ @ @ e ? @ @ @ @ @ @ @ @ ? e @ @ @ @ @ @ @ @ e ? @ @ @ @ @ @ @ @ ? e @ @ @ @ @ @ @ @ e ? @ @ @ @ @ @ @ @ ? e @ @ @ @ @ @ @ @ e ? @ @ @ @ @ @ @ @ ? e @ @ @ @ @ @ @ @ e ? @ @ @ @ @ @ @ @ ? e @ @ @ @ @ @ @ @ e ? @ @ @ @ @ @ @ @ ? e @ @ @ @ @ @ @ @ e ? @ @ @ @ @ @ @ @ ? e @ @ @ @ @ @ @ @ e ? @ @ @ @ @ @ @ @ ? e @ @ @ @ @ @ @ @ e ? @ @ @ @ @ @ @ @ ? e @ @ @ @ @ @ @ @ e ? @ @ @ @ @ @ @ @ ? e @ @ @ @ @ @ @ @ e ? @ @ @ @ @ @ @ @ ? e @ @ @ @ @ @ @ @ e ? @ @ @ @ @ @ @ @ ? e @ @ @ @ @ @ @ @ e ? @ @ @ @ @ @ @ @ ? e @ @ @ @ @ @ @ @ e ? @ @ @ @ @ @ @ @ ? e @ @ @ @ @ @ @ @ e ? @ @ @ @ @ @ @ @ ? e @ @ @ @ @ @ @ @ e ? @ @ @ @ @ @ @ @ ? e @ @ @ @ @ @ @ @ e ? @ @ @ @ @ @ @ @ ? e @ @ @ @ @ @ @ @ e ? @ @ @ @ @ @ @ @ ? e @ @ @ @ @ @ @ @ e ? @ @ @ @ @ @ @ @ ? e @ @ @ @ @ @ @ @ e ?
  • Page 4 IMPORTANT @ @ @ @ @ @ @ @ e ? @ @ @ @ @ @ @ @ e ? @ @ @ @ @ @ @ @ ? e @ @ @ @ @ @ @ @ e ? @ @ @ @ @ @ @ @ ? e @ @ @ @ @ @ @ @ e ? @ @ @ @ @ @ @ @ ? e @ @ @ @ @ @ @ @ e ? @ @ @ @ @ @ @ @ ? e @ @ @ @ @ @ @ @ e ? @ @ @ @ @ @ @ @ ? e @ @ @ @ @ @ @ @ e ? @ @ @ @ @ @ @ @ ? e @ @ @ @ @ @ @ @ e ? @ @ @ @ @ @ @ @ ? e @ @ @ @ @ @ @ @ e ? @ @ @ @ @ @ @ @ ? e @ @ @ @ @ @ @ @ e ? @ @ @ @ @ @ @ @ ? e @ @ @ @ @ @ @ @ e ? @ @ @ @ @ @ @ @ ? e @ @ @ @ @ @ @ @ e ? @ @ @ @ @ @ @ @ ? e @ @ @ @ @ @ @ @ e ? @ @ @ @ @ @ @ @ ? e @ @ @ @ @ @ @ @ e ? @ @ @ @ @ @ @ @ ? e @ @ @ @ @ @ @ @ e ? @ @ @ @ @ @ @ @ ? e @ @ @ @ @ @ @ @ e ? @ @ @ @ @ @ @ @ ? e @ @ @ @ @ @ @ @ e ? @ @ @ @ @ @ @ @ ? e @ @ @ @ @ @ @ @ e ? @ @ @ @ @ @ @ @ ? e @ @ @ @ @ @ @ @ e ? @ @ @ @ @ @ @ @ ? e @ @ @ @ @ @ @ @ e ? @ @ @ @ @ @ @ @ ? e @ @ @ @ @ @ @ @ e ? @ @ @ @ @ @ @ @ ? e @ @ @ @ @ @ @ @ e ? @ @ @ @ @ @ @ @ ? e @ @ @ @ @ @ @ @ e ? @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ e ? @ @ @ @ @ @ @ @ e ? @ @ @ @ @ @ @ @ ? e @ @ @ @ @ @ @ @ e ? @ @ @ @ @ @ @ @ ? e @ @ @ @ @ @ @ @ e ? @ @ @ @ @ @ @ @ ? e @ @ @ @ @ @ @ @ e ? @ @ @ @ @ @ @ @ ? e @ @ @ @ @ @ @ @ e ? @ @ @ @ @ @ @ @ ? e @ @ @ @ @ @ @ @ e ? @ @ @ @ @ @ @ @ ? e @ @ @ @ @ @ @ @ e ? @ @ @ @ @ @ @ @ ? e @ @ @ @ @ @ @ @ e ? @ @ @ @ @ @ @ @ ? e @ @ @ @ @ @ @ @ e ? @ @ @ @ @ @ @ @ ? e @ @ @ @ @ @ @ @ e ? @ @ @ @ @ @ @ @ ? e @ @ @ @ @ @ @ @ e ? @ @ @ @ @ @ @ @ ? e @ @ @ @ @ @ @ @ e ? @ @ @ @ @ @ @ @ ? e @ @ @ @ @ @ @ @ e ? @ @ @ @ @ @ @ @ ? e @ @ @ @ @ @ @ @ e ? @ @ @ @ @ @ @ @ ? e @ @ @ @ @ @ @ @ e ? @ @ @ @ @ @ @ @ ? e @ @ @ @ @ @ @ @ e ? @ @ @ @ @ @ @ @ ? e @ @ @ @ @ @ @ @ e ? @ @ @ @ @ @ @ @ ? e @ @ @ @ @ @ @ @ e ? @ @ @ @ @ @ @ @ ? e @ @ @ @ @ @ @ @ e ? @ @ @ @ @ @ @ @ ? e @ @ @ @ @ @ @ @ e ? @ @ @ @ @ @ @ @ ? e @ @ @ @ @ @ @ @ e ? @ @ @ @ @ @ @ @ ? e @ @ @ @ @ @ @ @ e ?

  • Page 5: Specifications

    SPECIFICATIONS Power Supply 230V~, 50Hz Power Consumption 1450 W Microwave Output Power 900W (IEC 705) Frequency 2450 MHz Grill power consumption 1400 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) 310 X 229 X 330 mm (12.2 X 9.0X 13.0 in.) Net Weight...

  • Page 6: Names And Function Of Parts

    NAMES AND FUNCTION OF PARTS CARD READER SYSTEM Defrost Grill Combi Weighf Time Lock Auto Card Waff cook Power Defrost Grill Auto Auto cook Cook menu 1. Beverage 2. Soup 3. Casserole 4. Vegetable I 5. Vegetable II 6. Fish fillets more 7.

  • Page 7: Control Panel

    CONTROL PANEL When blinking, the oven is When blinking, the oven is operating in COMBI COOKING. operating in WEIGHT DEFROST. When blinking, the oven is When blinking, the oven is operating in GRILL. operating in TIME DEFROST. When blinking, the oven is operating in MICROWAVE mode.

  • Page 8: Operation

    OPERATION TO STOP THE OVEN WHILE THE OVEN IS OPERATING 1. Press (STOP/CLEAR) button. - You can restart the oven by pressing (START) button. - Press once more to erase all instruction except clock. 2. Open the door - You can restart the oven by closing the door and pressing button.

  • Page 9: 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 microwave radiation when the door is opened during operation, and thus to perfectly prevent the danger resulting from the leakage of microwave.
  • Page 10 (2) Secondary interlock switch, monitor interlock switch and D.O.M 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 and D.O.M switch to bring it under ‘ON’...

  • Page 11: 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 12: Disassembly And Assembly

    DISASSEMBLY AND ASSEMBLY 1. To remove cabinet (Refer to Fig. 2) 1) Remove four screws on cabinet back. ? O 2 @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ O 2 @ 6 K O 2 @ @ 6 ? @ K O 2 6 K ? O 2 @ 6 ? 2 @ @ @ @ @ @ 6 ? 2 6 ? 2 @ 6 K ? ? O 2 6 K ? ? O 2 @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ 6 K O 2 6 K ? O 2 @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ 6 ? 2 @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ 6 K ? O 2 @ @ @ 6 ? 2 @ @ @ @ @ @ 6 ? 2 @ @ 6 ? 2 @ @ @ @ @ @ @ @ @ 6 ? @ ? @ K O 2 @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ 6 ? 2 @ 6 K f ? O 2 @ @ @ @ @ @ @ @ @ @ 6 K ? O @ K ? ? O @ K O 2 @ @ @ @ 6 K ? O &...
  • Page 13 3. To remove lamp (Refer to Fig. 4) O 2 @ @ @ @ @ @ @ @ @ 6 ? @ K ? ? W 2 @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ 6 X ? O 2 @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ 6 K ? O 2 @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ 6 K ? W 2 @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ 6 K...
  • Page 14 5. To remove magnetron and magnetron thermostat (Refer to Fig. 6) 1) Remove two secrews 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. O 2 @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ 6 X ? O 2 @ @ @ @ @ @ @ @ @ @ @ 6 K O 2 @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ 6 K ?
  • Page 15 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. At the same time, draw forward the control panel assembly from oven front plate. 2) Remove four screws 9 which secure the PCB main assembly 8 to control panel 1.
  • Page 16 7. To remove door assembly (Refer to Fig. 9) 1) Remove two bolts and two nuts which secure to hinge. 2) Remove door assembly 3) Remove door above for reassembly taking case to replace fixing glue. 8. To remove door parts (Refer to Fig. 10) 1) Remove the frame door and barrier-screen 2) Remove the absorber microwave...
  • Page 17 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 18 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 19: 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 20 (TROUBLE 1) Oven does not operate at all; any inputs can not be accepted Condition Check Result Cause Remedy (COM NC) Malfunction of Replace Check continuity Fuse blows interlock monitor of interlock monitor Continuity Note 1. switch switch with door closed (COM NC) (COM NC) Continuity...
  • Page 21 Defective Outlet has Check continuity proper voltage. magnetron and both magnetron and Continuity heater thermostat Fuse does heater thermostat not blow Replace check continuity of noise Defective line filter board Continuity filter board Check continuity Open power Replace of power supply cord Continuity supply cord Defective touch...
  • Page 22 (TROUBEL 3) No microwave oscillation even though fan motor rotates. Condition Check Result Cause Remedy No microwave Check continuity oscillation Continuity of high voltage fuse Defective high Check continuity Replace Continuity voltage of high voltage capacitor transformer terminals with wires removed Continuity Check continuity of high...
  • Page 23 (TROUBLE 4) Display shows all figures selected, but oven does not start cooking, even Condition Check Result Cause Remedy Malfunction of Adjust or Turn table motor, Check continuity of primary interlock replace Continuity fan motor and primary interlock switch switch oven lamp do not turn on Adjust or...
  • Page 24 Malfunction of Replace Normal Display does not Check each button for touch control control box show program- continuity of the tact circuitry of control main ming at all, even if switch keyboard as the box main-assembly assembly button key is following keyboard check pressed procedure.

  • Page 25: Measurement

    MEASUREMENT @ @ @ @ @ @ @ @ e ? @ @ @ @ @ @ @ @ e ? @ @ @ @ @ @ @ @ ? e @ @ @ @ @ @ @ @ e ? @ @ @ @ @ @ @ @ ? e @ @ @ @ @ @ @ @ e ? @ @ @ @ @ @ @ @ ? e @ @ @ @ @ @ @ @ e ? @ @ @ @ @ @ @ @ ? e @ @ @ @ @ @ @ @ e ? @ @ @ @ @ @ @ @ ? e @ @ @ @ @ @ @ @ e ? @ @ @ @ @ @ @ @ ? e @ @ @ @ @ @ @ @ e ? @ @ @ @ @ @ @ @ ? e @ @ @ @ @ @ @ @ e ? @ @ @ @ @ @ @ @ ? e @ @ @ @ @ @ @ @ e ? @ @ @ @ @ @ @ @ ? e @ @ @ @ @ @ @ @ e ? @ @ @ @ @ @ @ @ ? e @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ e ? @ @ @ @ @ @ @ @ e ? @ @ @ @ @ @ @ @ ? e @ @ @ @ @ @ @ @ e ? @ @ @ @ @ @ @ @ ? e @ @ @ @ @ @ @ @ e ? @ @ @ @ @ @ @ @ ? e @ @ @ @ @ @ @ @ e ? @ @ @ @ @ @ @ @ ? e @ @ @ @ @ @ @ @ e ? @ @ @ @ @ @ @ @ ? e @ @ @ @ @ @ @ @ e ? @ @ @ @ @ @ @ @ ? e @ @ @ @ @ @ @ @ e ? @ @ @ @ @ @ @ @ ? e @ @ @ @ @ @ @ @ e ? @ @ @ @ @ @ @ @ ? e @ @ @ @ @ @ @ @ e ? @ @ @ @ @ @ @ @ ? e @ @ @ @ @ @ @ @ e ? @ @ @ @ @ @ @ @ ? e...
  • Page 26 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±15 millilitres of tap water initially at 68±9˚F(20±5˚C) in the container. Door Open Closed 3) Place it at the centre of the tray. ∞...

  • 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. Before touching any oven components or wiring, always unplug the oven from its power source and discharge the capacitor (see page 20).

  • Page 28: Wiring Diagram

    PRIMARY INTERLOCK INTERLOCK MONITOR H.V. TRANSFORMER SWITCH(UPPER) SWITCH COM. H.V. POWER SUPPLY HEATER CAPACITOR SINGLE PHASE THERMOSTAT ~ ONLY L:NN FUSE L:BB LINE FILTER MAGNETRON ASS'Y THERMOSTAT H.V. DIODE SECONDARY INTERLOCK SWITCH D.O.M. SWITCH MOTOR POWER HEATER RELAY RELAY RELAY CONTROL P.W.B.

  • Page 29: Schematic Diagram

    SCHEMATIC DIAGRAMS IDLE PRIMARY INTERLOCK INTERLOCK MONITOR H.V. TRANSFORMER SWITCH(UPPER) SWITCH COM. H.V. POWER SUPPLY HEATER CAPACITOR SINGLE PHASE THERMOSTAT ~ ONLY L:NN FUSE L:BB LINE FILTER MAGNETRON ASS'Y THERMOSTAT H.V. DIODE SECONDARY INTERLOCK SWITCH D.O.M. SWITCH MOTOR POWER HEATER RELAY RELAY RELAY...
  • Page 30 GRILL PRIMARY INTERLOCK INTERLOCK MONITOR H.V. TRANSFORMER SWITCH(UPPER) SWITCH COM. H.V. POWER SUPPLY HEATER CAPACITOR SINGLE PHASE THERMOSTAT ~ ONLY L:NN FUSE L:BB LINE FILTER MAGNETRON ASS'Y THERMOSTAT H.V. DIODE SECONDARY INTERLOCK SWITCH D.O.M. SWITCH MOTOR POWER HEATER RELAY RELAY RELAY CONTROL P.W.B.

  • Page 31: Exploded Views And Parts List

    EXPLODED VIEW...
  • Page 32 * SUB : Substitutive REF NO. PART CODE PART NAME DESCRIPTION Q’TY REMARK 3510103700 CAVITY WELD AS KOG-8415 ØS 3512504800 GUIDE WAVE SA1D-80 0.5T 3510602500 BRACKET MAGNETRON SECC 1.2T 3511401500 COVER WAVE GUIDE MICA 0.35T 7113400814 SCREW TAPPING T1 BIN 4X8 MFNI 3512800800 HEATER 1R07817 230V 1350W...
  • Page 33 * SUB : Substitutive PART CODE PART NAME DESCRIPTION Q’TY REMARK 7121400811 SCREW TAPPING T2S PAN 4X8 MFZN 3518902800 THERMOSTAT 130/120 H PW-2N 7121400811 SCREW TAPPING T2S PAN 4X8 MFZN 3512505000 GUIDE WIND 3963512910 MOTOR SHADED POLE 230V 25W MW15CA-K01 3963512900 OEM-15DWC2-A02 7124402511...

  • Page 34: Printed Wiring Board

    PRINTED WIRING BOARD 1. Circuit Check Procedure 1) Low voltage transformer (DMR-101FS) check. The low voltage transformer is located on the P.C.B. Measuring condition : Input voltage : 220V Frequency : 50Hz Voltage LOAD NO LOAD Terminal 10VAC 15VAC 30VAC 45VAC 8-9-10 2.6VAC...
  • Page 35 FIG. 17 MEASUREMENT POINT...
  • Page 37 3) Display problems CAUSE MEASUREMENT RESULT REMEDY Poor contact between 1. Check the voltage of PIN 2.6 VAC Fix the PIN 1 & 25 P.C.B and display 1 & PIN 25. on the P.C.B. filament. The Display has some Refer to “The display Replace P.C.B.
  • Page 38 CHECK METHOD POINT STAGE RELAY “2” ON +5VDC RELAY “2” OFF +12VDC (2) When pressing “ ” button, oven lamp turns on. Fan motor and turntable motor rotate and cook indicator in display comes on. * Cause : RELAY “1” does not operate. MICOM CHECK METHOD POINT...
  • Page 39 6) When the door is opened during operation, the count down timer does not stop. MICOM D.O.M SW CHECK METHOD POINT STAGE 1) DOOR OPENED OPEN +5VDC 2) DOOR CLOSED CLOSED CHECK NO. METHOD REMEDY Check the state (ON,OFF) of the secondary Replace secondary Interlock switch by resistance measurement.
  • Page 40 8) When the CARD READER does not operate properly. 53014-0710 CARD IRQ0 READER IRQ1 ASS'Y HARNESS P.C.B F5102Z 5A104J FULLY TIMING CHART SEATED INSERTION WITHDRAWAL 8 BIT IGNORED • NOTE 1 : The TIMING CHART is display during moving of the CARD. •...
  • Page 41 1) Transistor(NPN Type) Q1 ~ Q10 Q1 ~ Q12 Emitter Collector Base 2) Diode and zener diode DIODE Cathode (K) ANODE (A) D1-15 D1~10 ZD1~4 ZENER DIODE Cathode (K) ANODE (A) ZD1-6...

  • Page 42: Circuit Diagram

    P.C.B. CIRCUIT DIAGRAM...

  • Page 43: Location No

    P.C.B. LOCATION NO REF NO. PART CODE PART NAME DESCRIPTION REMARK 3515600100 BUZZER BM-20K CN7XB-102M C ARRAY 8P(7) 102 M 50V CN5XB-102M C ARRAY 6P(5) 102 M 50V C1~5, C9~10 CCZF1H104Z CAPACITOR CERA 104 50V Z AXIAL C6, C7 CCZF1H473Z CAPACITOR CERA 473 50V Z AXIAL CCZF1H102Z...
  • Page 44 REF NO. PART CODE PART NAME DESCRIPTION REMARK RD-AZ101J- 1/6W 100 5% R17, R18 RD-4Z202J- RESISTER 1/4W 2K 5% RD-4Z102J- RESISTER 1/4 1K 5% RD-4Z689J- RESISTER 1/4W 6.8 5% RD-2Z560JS REGISTER 1/2W 56 5% R14, 15 RD-2Z471JS RESISTER 1/2 470 5% 5PKBR40MKS RESONATOR CERA KBR-4.0MSTF...

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