DAEWOO ELECTRONICS KOG-371G0S Service Manual
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DAEWOO ELECTRONICS KOG-371G0S Service Manual

DAEWOO ELECTRONICS KOG-371G0S Service Manual

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Service Manual
Microwave Oven
Model: KOG-371G0S KOG-391G0S
KOG-371H0S KOG-391H0S
KOG-376T1S
KOG-371R0S KOG-391R0S
KOG-374R0S KOG-375R0S
KOG-373R0S KOG-393R0S
KOG-86AH7S KOG-86CH7S
KOG-86AH7P KOG-90AH
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
S/M NO. : G391GHR0S2
KOG-396T1S
May. 2006

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Summary of Contents for DAEWOO ELECTRONICS KOG-371G0S

  • Page 1 S/M NO. : G391GHR0S2 Service Manual Microwave Oven Model: KOG-371G0S KOG-391G0S KOG-371H0S KOG-391H0S KOG-376T1S KOG-396T1S KOG-371R0S KOG-391R0S KOG-374R0S KOG-375R0S KOG-373R0S KOG-393R0S KOG-86AH7S KOG-86CH7S KOG-86AH7P KOG-90AH Caution : In this Manual, some parts can be changed for improving, their performance without notice in the parts list. So, if you...

  • 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: 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 KOG-371G/H/R0S, KOG-374R/5R0S KOG-391G/H/R0S POWER SUPPLY 230~, 50Hz SINGLE PHASE WITH EARTHING MICROWAVE 1200W 1350W POWER CONSUMPTION GRILL 1050W 1050W COMBINATION 2200W 2350W MICROWAVE ENERGY OUTPUT 800W 900W MICROWAVE FREQUENCY 2450 MHz 465X279X360mm 495X294X388mm OUTSIDE DIMENSIONS(WXHXD) (18.3X11.0X14.2 in) (19.5X11.6X15.3 in) 290X220X306mm 320X244X338mm CAVITY DIMENSIONS(WXHXD)
  • Page 5 MODEL KOG-373R0S KOG-393R0S POWER SUPPLY 230~, 50Hz SINGLE PHASE WITH EARTHING MICROWAVE 1200W 1350W POWER CONSUMPTION GRILL 1050W 1050W COMBINATION 2200W 2350W MICROWAVE ENERGY OUTPUT 800W 950W MICROWAVE FREQUENCY 2450 MHz 465X279X365mm 495X294X392mm OUTSIDE DIMENSIONS(WXHXD) (18.3X11.0X14.4 in) (19.5X11.6X15.4 in) 290X220X306mm 320X244X338mm CAVITY DIMENSIONS(WXHXD) (11.4X8.7X12.0 in)

  • Page 6: External View

    EXTERNAL VIEW 1. OUTER DIMENSION 1) KOG-371G/H0S, KOG-391G/H0S, KOG-86CH7S 465/495 360/388 2) KOG-376T1S, KOG-396T1S 465/495 370/403 3) KOG-373R0S, KOG-393R0S 465/495 365/392...
  • Page 7 4) KOG-371R0S, KOG-391R0S 465/495 360/388 5) KOG-374R0S 6) KOG-375R0S...
  • Page 8 7) KOG-86AH7S/86AH7P/90AH...

  • Page 9: Feature Diagram

    2. FEATURE DIAGRAM 1) KOG-371G/H0S, KOG-391G/H0S, KOG-86CH7S 1. DOOR SEAL - Door seal maintains the microwave energy within the oven cavity and prevents microwave leakage. 2. REFLECTOR(Insulator Heater) 3. HEATING ELEMENT 4. OVEN CAVITY 5. SEFETY INTERLOCK SYSTEM 6. DOOR RELEASE BUTTON - By pushing this button the latch system cut off all circuits and stops the oven before the door is opened.
  • Page 10 2) KOG-376T1S, KOG-396T1S w q 0 9 1. DOOR SEAL - Door seal maintains the microwave energy within the oven cavity and prevents microwave leakage. 2. REFLECTOR(Insulator Heater) 3. HEATING ELEMENT 4. OVEN CAVITY 5. SEFETY INTERLOCK SYSTEM 6. CONTROL PANEL 7.
  • Page 11 3) KOG-371R0S, KOG-391R0S 1. DOOR SEAL - Door seal maintains the microwave energy within the oven cavity and prevents microwave leakage. 2. REFLECTOR(Insulator Heater) 3. HEATING ELEMENT 4. OVEN CAVITY 5. SEFETY INTERLOCK SYSTEM 6. CONTROL PANEL 7. DOOR OPENING BUTTON 8.
  • Page 12 4) KOG-374R0S 1. DOOR SEAL - Door seal maintains the microwave energy within the oven cavity and prevents microwave leakage. 2. REFLECTOR(Insulator Heater) 3. HEATING ELEMENT 4. OVEN CAVITY 5. SEFETY INTERLOCK SYSTEM 6. METAL RACK 7. COUPLER - This fits over the shaft in the center of the ovens cavity floor. This is to remain in the oven for all cooking.
  • Page 13 5) KOG-375R0S 1. DOOR SEAL - Door seal maintains the microwave energy within the oven cavity and prevents microwave leakage. 2. REFLECTOR(Insulator Heater) 3. HEATING ELEMENT 4. OVEN CAVITY 5. SEFETY INTERLOCK SYSTEM 6. METAL RACK 7. COUPLER - This fits over the shaft in the center of the ovens cavity floor. This is to remain in the oven for all cooking.
  • Page 14 6) KOG-373R0S, KOG-393R0S 1. DOOR SEAL - Door seal maintains the microwave energy within the oven cavity and prevents microwave leakage. 2. REFLECTOR(Insulator Heater) 3. HEATING ELEMENT 4. OVEN CAVITY 5. SEFETY INTERLOCK SYSTEM 6. METAL RACK 7. COUPLER - This fits over the shaft in the center of the ovens cavity floor. This is to remain in the oven for all cooking.
  • Page 15 7) KOG-86AH7S/86AH7P/90AH w q 0 1. DOOR SEAL - Door seal maintains the microwave energy within the oven cavity and prevents microwave leakage. 2. REFLECTOR (INSULATOR HEATER) 3. HEATING ELEMENT 4. OVEN CAVITY 5. SAFETY INTERLOCK SYSTEM 6. CONTROL PANEL 7.

  • Page 16: Control Panel

    3. CONTROL PANEL 1) KOG-371G0S, KOG-391G0S Def. Grill Combi Timer/g 1. BREAD 2. SOUP Auto 3. BAKED POTATO Cook 4. FRESH VEGETABLE 5. FROZEN VEGETABLE Pasta Frozen Pizza Beverage Auto Defrost Fish Poultry Meat COMBI GRILL Defrost Kitchen Power Clock...
  • Page 17 2) KOG-371H0S, KOG-391H0S, KOG-86CH7S Def. Grill Combi Timer/g Frozen Pizza Fresh Vegetable Beverage Dish Warmer Pasta Auto Defrost Fish Poultry Meat COMBI GRILL Defrost Kitchen Power Clock Timer STOP/ START/ CLEAR SPEEDY COOK 1. TIME SET PAD - Used to set the cooking time and the present time. 2.
  • Page 18 3) KOG-376T1S, KOG-396T1S 1. Display - Cooking time, power level, indicators and present time are displayed. 2. Clock - Used to set clock. 3. Start/Easy Cook - Used to start operation, also for easy start (each press adds 30 seconds microwave cooking time).
  • Page 19 4) KOG-371R0S, KOG-391R0S DEF. Grill Combi Grill/Combi Power/Def. Auto cook 1. Dinner plate 2. Soup 3. Beverage 4. Fresh vegetable Start/ Easy cook Stop/Clear Weight/ Time Clock 1. Display - Cooking time, power level, indicators and present time are displayed. 2.
  • Page 20 4) KOG-374R0S Power/Def Grill/Combi Clock Auto Cook 1. Dinner Plate 2. Soup 3. Beverage 4. Fresh Vegetable Stop/Clear Start/Easy Cook 1. Display - Cooking time, power level, indicators and present time are displayed. 2. Grill/Combi - Used to cook GRILL or COMBI. 3.
  • Page 21 4) KOG-375R0S Power/Def Grill/Combi Clock 1. Dinner Plate Auto Cook 2. Soup 3. Beverage 4. Fresh Vegetable Stop/Clear Start/Easy Cook 1. Display - Cooking time, power level, indicators and present time are displayed. 2. Grill/Combi - Used to cook GRILL or COMBI. 3.
  • Page 22 5) KOG-373R0S, KOG-393R0S KOG-373R Auto cook 1. Dinner Plate 2. Soup 3. Beverage 4. Fresh Vegetable Grill/Combi Power/ Defrost Clock DEF. Grill Combi Stop/ Clear Start/ Easy cook 1. Display - Cooking time, power level, indicators and present time are displayed. 2.
  • Page 23 6) KOG-86AH7S/86AH7P/90AH 1. TIME SET PAD-Used to set the cooking time and the present time. 2. DISPLAY-Cooking time, power level, indicators and present time are displayed. 3. ONE TOUCH-Used to cook or reheat specific quantities of food. 4. MORE-Used to add time to cooking. 5.

  • Page 24: Installation

    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.

  • Page 25: Operations And Functions

    OPERATION AND FUNCTIONS 1. 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 26: Disassembly And Assembly

    DISASSEMBLY AND ASSEMBLY Cautions to be observed when trouble shooting Unlike many other appliances, the microwave oven is a 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 27 1. To remove cabinet. 1) Remove three screws on cabinet back. 2) Push the cabinet backward. 2. To remove door assembly. 1) Remove a screw which secure the stopper hinge top. 2) Remove the door assembly from top plate of cavity. 3) Reverse the above for reassembly.
  • Page 28 So, if you need the latest parts information, please refer to PPL(Parts Price List) in Service Information Center So, if you need the latest parts information, please refer to PPL(Parts Price List) in Service Information Center (http://svc.dwe.co.kr). (http://svc.dwe.co.kr). 3. To remove door parts. (1) KOG-371G0S/371H0S/371R0S REF. NO PART CODE PART NAME DESCRIPTION...
  • Page 29 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 30 Caution Caution In this Manual, some parts can be changed for improving, their performance without notice in the parts list. 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 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 31 1) Remove the gasket door from door plate. 2) Remove a screw which secure the door plate and door frame. 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 32 Caution Caution In this Manual, some parts can be changed for improving, their performance without notice in the parts list. 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 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 33 (1) Remove the gasket door from door weld as. (2) Remove the barrier screen inner from weld as. (3) Remove the door frame from door weld as. (4) Remove the stopper hinge top from door weld as. (5) Remove the spring and the hook. (6) Remove the barrier screen outer from door frame.
  • Page 34 Caution Caution In this Manual, some parts can be changed for improving, their performance without notice in the parts list. 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 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 35 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 stopper hinge top, and then push the door to contact the door seal to oven front surface.
  • Page 36 Caution Caution In this Manual, some parts can be changed for improving, their performance without notice in the parts list. 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 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 37 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 38 Caution Caution Caution In this Manual, some parts can be changed for improving, their performance without notice in the parts list. In this Manual, some parts can be changed for improving, their performance without notice in the parts list. 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 So, if you need the latest parts information, please refer to PPL(Parts Price List) in Service Information Center So, if you need the latest parts information, please refer to PPL(Parts Price List) in Service Information Center...
  • Page 39 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 40 Caution Caution Caution In this Manual, some parts can be changed for improving, their performance without notice in the parts list. In this Manual, some parts can be changed for improving, their performance without notice in the parts list. 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 So, if you need the latest parts information, please refer to PPL(Parts Price List) in Service Information Center So, if you need the latest parts information, please refer to PPL(Parts Price List) in Service Information Center...
  • Page 41 4. Method to reduce the gap between the door seal and the oven front surface. (1) To reduce gap located on part ‘A’ Loosen the screw on stopper hinge top, and then push the door to contact the door seal to oven front surface. Tighten a screw.
  • Page 42 5. To remove control panel parts. (1) KOG-371G0S/371H0S REF. NO PART CODE PART NAME DESCRIPTION REMARK 3518521610 KOG-371G0S SWITCH MEMBRANE 3518521600 KOG-371H0S 3516719400 CONTROL-PANEL ABS XR-401 H-2938 3514320800 PCB MAIN AS KOG-371G0S 7122401211 SCREW TAPPING T2S TRS 4X12 MFZN 3513702700...
  • Page 43 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 44 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 45 (7) KOG-374R0S REF NO. PART CODE PART NAME DESCRIPTION Q’TY REMARK 3513404620 KNOB VOLUME ABS XR-401, H-2938 3511604510 DECORATOR C-PANEL STS T0.6 3516003910 SPECIAL DOUBLE TAPE H0 SUNG 550M T0.15 3515501530 WINDOW DISPLAY PMMA T2.0 3516721460 CONTROL PANEL ABS XR-401, H-2938 3516907430 BUTTON FUNCTION ABS XR-401, COATING...
  • Page 46 (8) KOG-375R0S REF NO. PART CODE PART NAME DESCRIPTION Q’TY REMARK 3513403800 KNOB VOLUME ABS XR-401, H-2938 3511604530 DECORATOR C-PANEL STS T0.6 3516003960 SPECIAL DOUBLE TAPE H0 SUNG 550M T0.15 3515501530 WINDOW DISPLAY PMMA T2.0 3516723700 CONTROL PANEL ABS XR-401, H-2938 3516907440 BUTTON FUNCTION ABS XR-401...
  • Page 47 (9) KOG-373R0S REF. NO PART CODE PART NAME DESCRIPTION REMARK 3515501540 WINDOW DISPLAY PMMA 3516723730 CONTROL PANEL ABS SG-175 3516907530 BUTTON FUCTION *A ABS SG-175 3516907540 BUTTON FUCTION *B ABS SG-175 3513405240 KNOB VOLUME PKBPMSZ300 PCB SUB AS KOG-373R0S 7621301011 SCREW TAPPING T2 PAN 2X10 PW MFZN PKMPMSZ600...
  • Page 48 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). (11) KOG-86AH7S/86AH7P/90AH REF NO.
  • Page 49 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 50 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 51 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 52 12. To remove heater parts. REF. NO PART CODE PART NAME DESCRIPTION REMARK 7392500008 NUT HEX 6N-2-5 SUS 3515000600 SPACER INSULATOR *I C377BD 3513301100 INSULATOR HEATER SPP T0.8 3512803400 HEATER 230V 1000W 1R67994001 7002500613 SCREW MACHINE TRS 5X6 MFCR 7002400413 SCREW MACHINE TRS 4X4 MFCR...

  • Page 53: 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.
  • Page 54 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.

  • Page 55: Trouble Shooting Guide

    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 tranformer, disconnect one load wire from these parts and check continuity with the AC plug removed.
  • Page 56 TROUBLE SHOOTING GUIDE CONDITION CHECK RESULT CAUSE REMEDY Replace Defective Outlet has Check continuity of magnetron Continuity magnetron proper voltage Fuse does not Replace blow. Defective line Check continuity of Continuity filter board noise filter board Replace Open power Check continuity of Continuity supply cord power supply cord...
  • Page 57 (TROUBLE 3) No microwave oscillation even though fan motor rotates. CONDITION CHECK RESULT CAUSE REMEDY Check continuity of high microwave Continuity voltage fuse oscillation Replace high voltage fuse Continuity Replace Check continuity if high Defective high voltage capacitor terminals voltage with wires removed transformer Continuity in...
  • Page 58 (TROUBLE 4) The following visual conditions inditions indicate a probable defective touch control circuit or membrane switch assembly 1. Incomplete segments, 1) Segments 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 59: Measurement And Test

    MEASUREMENT AND TEST 1. MEASUREMENT OF THE MICROWAVE POWER OUTPUT Microwave output power can be checked by indirectly mmeasuring 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 the microwave oven supplied at rated voltage and operated at its maximum microwave power setting with a load of 100 ±...

  • Page 60: 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 61: 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 62: Wiring Diagram

    WIRING DIAGRAM (1) KOG-371G/H/R0S, KOG-391G/H/R0S, KOG-376T1S, KOG-374R/375R0S, KOG-373R/393R0S, KOG-86AH7S/86CH7S/86AH7P/90AH...
  • Page 63 (2) KOG-396T1S...

  • Page 64: Printed Circuit Board

    PRINTED CIRCUIT BOARD <KOG-371G/H0S, KOG-391G/H0S, KOG-86AH7S/86CH7S/86AH7P/90AH> 1. CIRCUIT CHECK PROCEDURE 1. Low voltage transformer check The low voltage transformer is located on the P.C.B. Measuring condition: Input voltage: 230V / Frequency: 50Hz Terminal Voltage LOAD NO LOAD AC 25.8 V AC 28.4 V NOTE 1.
  • Page 65 Mesurement point...
  • Page 66 3. When there is no microwave oscillation 1) When touching START pad, oven lamp does not turn on. Fan motor do not rotate, but cook indicator in display comes on. Cause : RELAY 2 does not operate. refer to Circuit Diagram (point 3) - Check method POINT STATE...
  • Page 67 2. P.C.B. CIRCUIT DIAGRAM...
  • Page 68 3. P.C.B. LOCATION NO (1) KOG-371G0S/371H0S NAME SYMBOL SPECIFICATION PART CODE Q’TY BUZZER BM-20K 3515600100 C ARRAY 7P(6) 102 M 50V CN6XB-102M CAPACITOR ELEC 50V RS 1µF CEXE1H109A CPAPCITOR ELEC 25V RSS 1000µF CEXF1E102V CONNECTOR WAFER YW396-02AV 3519150520 CONNECTOR FILM...
  • Page 69 (2) KOG-391G0S/391H0S, KOG-86AH7S/86CH7S/86AH7P/90AH NAME SYMBOL SPECIFICATION PART CODE Q’TY BUZZER BM-20K 3515600100 C ARRAY 7P(6) 102 M 50V CN6XB-102M CAPACITOR ELEC 50V RS 1µF CEXE1H109A CPAPCITOR ELEC 25V RSS 1000µF CEXF1E102V CONNECTOR WAFER YW396-02AV 3519150520 CONNECTOR FILM FCZ254-11 441M367160 CONNECTOR WAFER YW396-05AV 3519150510 DIODE RECTIFY...
  • Page 70 PRINTED CIRCUIT BOARD <KOG-376T1S, KOG-396T1S> 1. CIRCUIT CHECK PROCEDURE 1. Low voltage transformer check The low voltage transformer is located on the P.C.B. Measuring condition : Input voltage : 230V/Frequency : 50Hz Terminal Voltage LOAD NO LOAD 8 - 9 AC 23V AC 27.7V 6 - 7...
  • Page 71 Mesurement point...
  • Page 72 3. When there is no microwave oscillation 1) When touching START pad, oven lamp does not turn on. Fan motor do not rotate, but cook indicator in display comes on. Cause : RELAY 2 does not operate. refer to Circuit Diagram (point 3) - Check method POINT STATE...
  • Page 73 2. P.C.B. CIRCUIT DIAGRAM...
  • Page 74 3. P.C.B. LOCATION NO (1) KOG-376T1S NAME SYMBOL SPECIFICATION PART CODE Q’TY REMARK BUZZER BM-20K 3615600100 MAIN C ARRAY 5P(6) 102 M 50V CN4XB-102M “ CAPACITOR ELEC EC1, 2 50V RSS 10µF CEXE1H100A “ CAPACITOR ELEC 50V RSS 470µF CEXE1H471V “...
  • Page 75 (2) KOG-396T1S NAME SYMBOL SPECIFICATION PART CODE Q’TY REMARK BUZZER BM-20K 3615600100 MAIN C ARRAY 5P(6) 102 M 50V CN4XB-102M “ CAPACITOR ELEC EC1, 2 50V RSS 10µF CEXE1H100A “ CAPACITOR ELEC 50V RSS 470µF CEXE1H471V “ CONNECTOR WAFER YW396-02AV 3519150520 “...
  • Page 76 PRINTED CIRCUIT BOARD <KOG-371R0S, KOG-391R0S> 1. CIRCUIT CHECK PROCEDURE 1. Low voltage transformer check The low voltage transformer is located on the P.C.B. Measuring condition: Input voltage: 230V / Frequency: 50Hz Terminal Voltage LOAD NO LOAD AC 25.8 V AC 28.4 V NOTE 1.
  • Page 77 Mesurement point...
  • Page 78 3. When there is no microwave oscillation 1) When touching START pad, oven lamp does not turn on. Fan motor do not rotate, but cook indicator in display comes on. Cause : RELAY 2 does not operate. refer to Circuit Diagram (point 3) - Check method POINT STATE...
  • Page 79 2. P.C.B. CIRCUIT DIAGRAM...
  • Page 80 3. P.C.B. LOCATION NO (1) KOG-371R0S NAME SYMBOL SPECIFICATION PART CODE Q’TY REMARK PCB MAIN M160 82X139.9 3514321100 MAIN PCB BUZZER BM-20K 3515600100 C ARRAY 5P(4) 102 M 50V CN4XB-102M C ELECTRO 16V RSS 100µF CEXF1C101V C ELECTRO 25V RSS 1000µF CEXF1E102V CONNECTOR WAFER YW396-02AV...
  • Page 81 (2) KOG-391R0S NAME SYMBOL SPECIFICATION PART CODE Q’TY REMARK PCB MAIN M160 82X139.9 3514321100 MAIN PCB BUZZER BM-20K 3515600100 C ARRAY 5P(4) 102 M 50V CN4XB-102M C ELECTRO 16V RSS 100µF CEXF1C101V C ELECTRO 25V RSS 1000µF CEXF1E102V CONNECTOR WAFER YW396-02AV 3519150520 CONNECTOR WAFER...
  • Page 82 PRINTED CIRCUIT BOARD <KOG-374R0S, KOG-375R0S> 1. CIRCUIT CHECK PROCEDURE 1. Low Voltage Transformer check • The low voltage transformer is located on the P.C.B. • Measuring condition: input voltage : 230V/Frequency : 50Hz Terminal Voltage LOAD NO LOAD AC 25.8 V AC 28.4 V NOTE : 1.
  • Page 83 Mesurement point...
  • Page 84 3. When there is no microwave oscillation 1) When touching START pad, oven lamp does not turn on. Fan motor do not rotate, but cook indicator in display comes on. Cause : RELAY 2 does not operate. refer to Circuit Diagram (point 3) - Check method POINT STATE...
  • Page 85 2. P.C.B. CIRCUIT DIAGRAM...
  • Page 86 3. P.C.B. LOCATION NO (1) KOG-374R0S/375R0S NAME NAME SYMBOL SPECIFICATION PART CODE Q'TY REMARK PCB MAIN M166 82 X 146.8 3514321140 MAIN PCB BUZZER BM-20K 3515600100 C ARRAY 5P(4) 1000PF M 50V CN4XB-102M CAPACITOR CERA 102 50V Z AXIAL CCZB1H102K CAPACITOR CERA C1~5, C7 104 50V Z AXIAL...
  • Page 87 PRINTED CIRCUIT BOARD <KOG-373R0S, KOG-393R0S> 1. CIRCUIT CHECK PROCEDURE 1. Low Voltage Transformer check • The low voltage transformer is located on the P.C.B. • Measuring condition: input voltage : 230V/Frequency : 50Hz Terminal Voltage LOAD NO LOAD AC 25.8 V AC 28.4 V NOTE : 1.
  • Page 88 Mesurement point...
  • Page 89 3. When there is no microwave oscillation 1) When touching START pad, oven lamp does not turn on. Fan motor do not rotate, but cook indicator in display comes on. Cause : RELAY 2 does not operate. refer to Circuit Diagram (point 3) - Check method POINT STATE...
  • Page 90 2. P.C.B. CIRCUIT DIAGRAM...
  • Page 91 3. P.C.B. LOCATION NO (1) KOG-373R0S NAME NAME SYMBOL SPECIFICATION PART CODE Q'TY REMARK PCB MAIN M169 90 X 197 3514321150 MAIN PCB BUZZER BM-20K 3515600100 C ARRAY 5P(4) 1000PF M 50V CN4XB-102M CAPACITOR CERA 102 50V Z AXIAL CCZB1H102K CAPACITOR CERA C1~C3, C5~C7 104 50V Z AXIAL...
  • Page 92 (2) KOG-393R0S NAME NAME SYMBOL SPECIFICATION PART CODE Q'TY REMARK PCB MAIN M169 90 X 197 3514321150 MAIN PCB BUZZER BM-20K 3515600100 C ARRAY 5P(4) 1000PF M 50V CN4XB-102M CAPACITOR CERA 102 50V Z AXIAL CCZB1H102K CAPACITOR CERA C1~C3, C5~C7 104 50V Z AXIAL CCZF1H104Z CAPACITOR ELEC...

  • Page 93: Exploded View And Parts List

    EXPLODED VIEW AND PARTS LIST <KOG-371G/H/R0S, KOG-391G/H/R0S> 1. DOOR ASSEMBLY Refer to Disassembly and assembly 2. CONTROL PANEL ASSEMBLY Refer to Disassembly and assembly 3. TOTAL ASSEMBLY...
  • Page 94 (1) KOG-371G0S/371H0S/371R0S REF NO PART CODE PART NAME DESCRIPTION Q'TY 3511710300 DOOR AS KOG-63150S 3516721610 CONTROL PANEL AS KOG-371G0S 3516721600 CONTROL PANEL AS KOG-371H0S 3516721630 CONTRON PANEL AS KOG-371R0S 3510801310 CABINET SECC 7112401011 SPECIAL SCREW T1 TRS 4X10 MFZN 3516109610...
  • Page 95 REF NO PART CODE PART NAME DESCRIPTION Q'TY 3512100900 FOOT PP DASF-130 7S422X4081 SPECIAL SCREW TT2 TRS 4X8 MFZN 3515201101 STOPPER HINGE *U SCP-1 4415A17352 SW MICRO VP-533A-OF SPNO #187 200G 4415A66910 SW MICRO VP-531A-OF/SZM-V16-FA-61 4415A17352 SW MICRO VP-533A-OF SPNO #187 200G 3513702600 LEVER LOCK 3513811700...
  • Page 96 (2) KOG-391G0S/391H0S/391R0S, KOG-86CH7S REF NO PART CODE PART NAME DESCRIPTION Q'TY 3511710700 DOOR AS KOR-86150S 3511715450 DOOR AS KOR-86CH7A 3516721700 CONTROL PANEL AS KOG-391G0S 3516721710 CONTROL PANEL AS KOG-391H0S 3516721730 CONTROL PANEL AS KOG-391R0S 3510801400 CABINET SECC 7112401011 SPECIAL SCREW T1 TRS 4X10 MFZN 351609910 CAVITY AS...
  • Page 97 REF NO PART CODE PART NAME DESCRIPTION Q'TY 3516003700 SPECIAL SCREW TT3 HEX 4X8 FLG MFZN 3510311900 BASE SBHG 7112401011 SCREW TAPPING T1 TRS 4X10 MFZN 3512100900 FOOT PP DASF-130 7S422X4081 SPECIAL SCREW TT2 TRS 4X8 MFZN 3515201101 STOPPER HINGE *U SCP-1 4415A17352 SW MICRO...
  • Page 98 EXPLODED VIEW AND PARTS LIST <KOG-376T1S, KOG-396T1S> 1. DOOR ASSEMBLY Refer to Disassembly and assembly 2. CONTROL PANEL ASSEMBLY Refer to Disassembly and assembly 3. TOTAL ASSEMBLY (1) KOG-376T1S...
  • Page 99 (2) KOG-391G0S/391H0S/391R0S REF NO PART CODE PART NAME DESCRIPTION Q'TY 3511710380 DOOR AS KOR-636T1S 3516721620 CONTROL-PANEL AS KOG-376T1S 3513302700 INSULTOR HEATER AS KOG-37150S 3510801310 CABINET SECC 7112401011 SPECIAL SCREW T1 TRS 4X10 MFZN 3516109610 CAVITY AS CAVITY AS 7392500008 NUT HEX 6N-2-5 7122401211 SCREW TAPPING...
  • Page 100 REF NO PART CODE PART NAME DESCRIPTION Q'TY 4415A17352 SW MICRO VP-533A-OF SPNO #187 200G 4415A66910 SW MICRO VP-531A-OF/SZM-V16-FA-61 4415A17352 SW MICRO VP-533A-OF SPNO #187 200G 4415A17352 SW MICRO VP-533A-OF SPNO #187 200G 3513702610 LEVER LOCK 3513811710 LOCK 3513601600 LAMP BL 240V 25W T25 C7A H187 7112401011 SCREW TAPPING...
  • Page 101 (2) KOG-396T1S (2) KOG-396T1S...
  • Page 102 (1) KOG-396T1S PART CODE PART NAME DESCRIPTION SUPPLY REMARK DOOR AS Refer to 6. Refer to 6. Disassembly and CONTROL-PANEL AS Disassembly and assembly assembly INSULATOR HEATER AS 3510801310 CABINET SECC 7112401011 SPECIAL SCREW T1 TRS 4X10 MFZN 3516109910 CAVITY AS KOG-37150S 7392500008 NUT HEX...
  • Page 103 EXPLODED VIEW AND PARTS LIST <KOG-374R0S> 1. DOOR ASSEMBLY Refer to Disassembly and assembly 2. CONTROL PANEL ASSEMBLY Refer to Disassembly and assembly 3. TOTAL ASSEMBLY (1) KOG-374R0S...
  • Page 104 (1) KOG-374R0S PART CODE PART NAME DESCRIPTION SUPPLY REMARK DOOR AS Refer to 6. Refer to 6. Disassembly and Disassembly and CONTROL-PANEL AS assembly assembly INSULATOR HEATER AS 3510801310 CABINET SECC 7112401011 SPECIAL SCREW T1 TRS 4X10 MFZN 3516109610 CAVITY AS KOG-37150S 7392500008 NUT HEX...
  • Page 105 EXPLODED VIEW AND PARTS LIST <KOG-375R0S> 1. DOOR ASSEMBLY Refer to Disassembly and assembly 2. CONTROL PANEL ASSEMBLY Refer to Disassembly and assembly 3. TOTAL ASSEMBLY (1) KOG-375R0S...
  • Page 106 (1) KOG-375R0S PART CODE PART NAME DESCRIPTION SUPPLY REMARK DOOR AS Refer to 6. Refer to 6. Disassembly and CONTROL-PANEL AS Disassembly and assembly assembly INSULATOR HEATER AS 3510801310 CABINET SECC 7112401011 SPECIAL SCREW T1 TRS 4X10 MFZN 3516109610 CAVITY AS KOG-37150S 7392500008 NUT HEX...
  • Page 107 EXPLODED VIEW AND PARTS LIST <KOG-373R0S, KOG-393R0S> 1. DOOR ASSEMBLY Refer to Disassembly and assembly 2. CONTROL PANEL ASSEMBLY Refer to Disassembly and assembly 3. TOTAL ASSEMBLY...
  • Page 108 (1) KOG-373R0S REF NO PART CODE PART NAME DESCRIPTION Q'TY 3511712170 DOOR AS KOG-63350S PKCPSWZ600 CONTROL PANEL AS KOG-373R0S 3513302700 HEATER AS KOG-37150S 3510801310 CABINET SECC 7112401011 SCREW TAPPING T1 TRS 4X10 MFZN 3516109610 CAVITY AS CAVITY AS 7392500008 NUT HEX 6N-2-5 7122401211 SCREW TAPPING...
  • Page 109 REF NO PART CODE PART NAME DESCRIPTION Q'TY 3512100900 FOOT PP DASF-130 7S422X4081 SPECIAL SCREW TT2 TRS 4X8 MFZN 3515201101 STOPPER HINGE *U SCP-1 4415A17352 SW MICRO VP-533A-OF SPNO #187 200G 4415A66910 SW MICRO VP-531A-OF/SZM-V16-FA-61 4415A17352 SW MICRO VP-533A-OF SPNO #187 200G 3513702610 LEVER LOCK 3513811710...
  • Page 110 (2) KOG-393R0S REF NO PART CODE PART NAME DESCRIPTION Q'TY 3511712720 DOOR AS KOR-86350S PKCPSWT500 CONTROL PANEL AS KOG-393R0S 3516721710 CONTROL PANEL AS KOG-391H0S 3513302700 HEATER AS KOG-37150S 3510801400 CABINET SECC 7112401011 SCREW TAPPING T1 TRS 4X10 MFZN 3516109910 CAVITY AS CAVITY AS 7392500008 NUT HEX...
  • Page 111 REF NO PART CODE PART NAME DESCRIPTION Q'TY 3512100900 FOOT PP DASF-130 7S422X4081 SPECIAL SCREW TT2 TRS 4X8 MFZN 3515201101 STOPPER HINGE *U SCP-1 4415A17352 SW MICRO VP-533A-OF SPNO #187 200G 4415A66910 SW MICRO VP-531A-OF/SZM-V16-FA-61 4415A17352 SW MICRO VP-533A-OF SPNO #187 200G 3513702610 LEVER LOCK 3513811710...
  • Page 112 EXPLODED VIEW AND PARTS LIST <KOG-86AH7S/86AH7P/90AH> 1. DOOR ASSEMBLY Refer to Disassembly and assembly 2. CONTROL PANEL ASSEMBLY Refer to Disassembly and assembly 3. TOTAL ASSEMBLY...
  • Page 113 (2) KOG-86AH7S/86AH7P/90AH REF NO PART CODE PART NAME DESCRIPTION Q'TY 3511715420 DOOR AS KOR-86AH7S PKCPSWB850 CONTROL PANEL AS KOG-86AH7S 3516721730 CONTROL PANEL AS KOG-391R0S 3510801400 CABINET SECC 7112401011 SPECIAL SCREW T1 TRS 4X10 MFZN 351609910 CAVITY AS CAVITY AS 7392500008 NUT HEX 6N-2-5 7122401211...
  • Page 114 REF NO PART CODE PART NAME DESCRIPTION Q'TY 3512100900 FOOT PP DASF-130 7S422X4081 SPECIAL SCREW TT2 TRS 4X8 MFZN 3515201101 STOPPER HINGE *U SCP-1 4415A17352 SW MICRO VP-533A-OF SPNO #187 200G 4415A66910 SW MICRO VP-531A-OF/SZM-V16-FA-61 4415A17352 SW MICRO VP-533A-OF SPNO #187 200G 3513702600 LEVER LOCK 3513811700...
  • Page 115 DAEWOO ELECTRONICS CORP. 686, AHYEON-DONG MAPO-GU SEOUL, KOREA C.P.O. BOX 8003 SEOUL, KOREA TELEX: DWELEC K28177-8 CABLE: “DAEWOOELEC” S/M NO. : G391GHR0S2 PRINTED DATE: May. 2006...

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