Daewoo KOG-374R0S manuale d’uso

Ser vice Manual Micr owave 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 DAEWOO ELECTRONICS CO., L TD. ✔ Caution : In this Manual, some parts can be changed for improving, their performance without notice in the parts list. So, if you need the lates[...]

1 1 PRECAUTIONS T O BE OBSER VED BEFORE AND DURING SER VICING T O A VOID POSSIBLE EXPOSURE T O EXCESSIVE MICROW A VE 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:[...]

2 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 b[...]

3 SPECIFICA TIONS - POWER SELECTIONS* : KOG-371R/391R0S : 5 LEVELS. 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 OUTSIDE DIMENSIONS(WXHXD) 465X279X3[...]

4 1. OUTER DIMENSION 1) KOG-371G/H0S, KOG-391G/H0S 465/495 279/294 360/388 2) KOG-376T1S, KOG-396T1S 3) KOG-373R0S, KOG-393R0S 365/392 465/495 279/294 EXTERNAL VIEW[...]

5 4) KOG-371R0S, KOG-391R0S 465/495 279/294 360/388 5) KOG-374R0S 465 279 360 6) KOG-375R0S 465 279 360[...]

6 1. DOOR SEAL - Door seal maintains the microwave energy within the oven cavity and prevents microwave leakage. 2. REFLECTOR(Insulator Heater) 3. HEA TING ELEMENT 4. OVEN CA VITY 5. SEFETY INTERLOCK SYSTEM 6. DOOR RELEASE BUTT ON - By pushing this button the latch system cut of f all circuits and stops the oven before the door is opened. 7. MET AL[...]

7 1. DOOR SEAL - Door seal maintains the microwave energy within the oven cavity and prevents microwave leakage. 2. REFLECTOR(Insulator Heater) 3. HEA TING ELEMENT 4. OVEN CA VITY 5. SEFETY INTERLOCK SYSTEM 6. CONTROL P ANEL 7. MET AL RACK 8. COUPLER - This fits over the shaft in the center of the ovens cavity floor . This is to remain in the oven [...]

8 1. DOOR SEAL - Door seal maintains the microwave energy within the oven cavity and prevents microwave leakage. 2. REFLECTOR(Insulator Heater) 3. HEA TING ELEMENT 4. OVEN CA VITY 5. SEFETY INTERLOCK SYSTEM 6. CONTROL P ANEL 7. DOOR OPENING BUTT ON 8. MET AL RACK 9. COUPLER - This fits over the shaft in the center of the ovens cavity floor . This i[...]

9 1. DOOR SEAL - Door seal maintains the microwave energy within the oven cavity and prevents microwave leakage. 2. REFLECTOR(Insulator Heater) 3. HEA TING ELEMENT 4. OVEN CA VITY 5. SEFETY INTERLOCK SYSTEM 6. MET AL 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. 8[...]

10 1. DOOR SEAL - Door seal maintains the microwave energy within the oven cavity and prevents microwave leakage. 2. REFLECTOR(Insulator Heater) 3. HEA TING ELEMENT 4. OVEN CA VITY 5. SEFETY INTERLOCK SYSTEM 6. MET AL 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. [...]

11 1. DOOR SEAL - Door seal maintains the microwave energy within the oven cavity and prevents microwave leakage. 2. REFLECTOR(Insulator Heater) 3. HEA TING ELEMENT 4. OVEN CA VITY 5. SEFETY INTERLOCK SYSTEM 6. MET AL 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. [...]

12 1. TIME SET P AD - Used to set the cooking time and the present time. 2. DISPLA Y - Cooking time, power level, indicators and present time are displayed. 3. ONE TOUCH - Used to cook or reheat specific quantities of food. 4. AUT O COOK - Used to cook or reheat. 5. MORE - Used to add time to cooking. 6. LESS - Used to remove time from cooking. 7. [...]

13 1. TIME SET P AD - Used to set the cooking time and the present time. 2. DISPLA Y - 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. LESS - Used to remove time from cooking. 6. AUT O DEFROST - Used to defrost foods.(f[...]

14 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). 4. Stop/Clear - Used to stop the operation or to delete the cooking data. 5. Auto Cook - Used to cook using a progr[...]

15 1. Display - Cooking time, power level, indicators and present time are displayed. 2. Grill/Combi - Used to cook GRILL or COMBI. 3. Power/Def - Used to set power level and DEFROST . 4. Auto cook - Used to cook using a program or to reheat. 5. Start / Easy cook - Used to start the oven operation and also increase the reheat time by 30 seconds. 6.[...]

16 1. Display - Cooking time, power level, indicators and present time are displayed. 2. Grill/Combi - Used to cook GRILL or COMBI. 3. Power/Def - Used to set power level and DEFROST . 4. Auto cook - Used to cook using a program or to reheat. 5. Start / Easy cook - Used to start the oven operation and also increase the reheat time by 30 seconds. 6.[...]

17 1. Display - Cooking time, power level, indicators and present time are displayed. 2. Grill/Combi - Used to cook GRILL or COMBI. 3. Power/Def - Used to set power level and DEFROST . 4. Auto cook - Used to cook using a program or to reheat. 5. Start / Easy cook - Used to start the oven operation and also increase the reheat time by 30 seconds. 6.[...]

18 1. Display - Cooking time, power level, indicators and present time are displayed. 2. Grill/Combi - Used to cook grill/combi. 3. Power/Def - Used to set power level. Used to defrost foods by weight or time. 4. Auto cook - Used to cook using a program or to reheat. 5. Start / Easy cook - Used to start the oven operation and also increase the rehe[...]

19 INST ALLA TION 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. 3. Away from radio[...]

20 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. Close the door securely. 4. When the oven door is opened, the light turns off. 5. The oven door can be opened at any time during operation [...]

21 DISASSEMBL Y AND ASSEMBL Y 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[...]

22 DISASSEMBL Y AND ASSEMBL Y 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. NOTE : After replacing the door assembly, perform a che[...]

23 3. To remove door parts. (1) KOG-371G0S/371H0S/371R0S (2) KOG-391G0S/391H0S/391R0S REF. NO PART CODE PART NAME DESCRIPTION QTY REMARK A01 3512204100 FRAME DOOR ABS XR-401 H-2938 1 A02 3517003150 BARRIER-SCREEN*0 ACRYL 1 A03 3515304410 SUPPORTER BARR-S*0 PP 1 A04 3515204100 STOPPER HINGE *T AS KOR-63150S 1 A05 3511705620 DOOR WELD AS KOR-81250S 1[...]

24 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. 7) Remove the barrier screen outer from door frame. 8) Remove th[...]

25 (3) KOG-376T1S (4) KOG-396T1S REF. NO PART CODE PART NAME DESCRIPTION QTY REMARK A01 3512203830 FRAME DOOR ABS 1 A02 3517005610 BARRIER-SCREEN*0 PMMA 1.5t 1 A03 3515306500 SUPPORTER BARR-S*0 ABS 1 A04 3511603800 DECORATOR DOOR ABS 1 A05 3511706100 DOOR PAINTING AS KOR-61150S 1 A06 3517002800 BARRIER-SCREEN *I KOR-61150S PE 0.1t 1 A07 3515204110 [...]

26 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. 7) Remove the barrier screen outer from door frame. 8)[...]

27 REF NO. PART CODE PART NAME DESCRIPTION Q’TY REMARK A01 3512203850 FRAME DOOR ABS XR-401, H-2938 1 A02 3517005620 BARRIER-SCREEN*O TEMP GLASS T3.2 1 A03 3515204100 STOPPER HINGE*T AS KOR-63150S 1 A04 3511706120 DOOR PAINTING AS KOR-634R0S 1 A05 3517002800 BARRIER-SCREEN*I PE 0.1T 1 A06 3512300200 GASKET DOOR PP 1 A07 3513100730 HOOK POM BLACK [...]

28 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. • Tighten two screws. (2) To reduce gap located on part ‘B’ • Loosen two screws on stopper hinge under, [...]

29 REF NO. PART CODE PART NAME DESCRIPTION Q’TY REMARK A01 3512203850 FRAME DOOR ABS XR-401, H-2938 1 A02 3517005620 BARRIER-SCREEN*O TEMP GLASS T3.2 1 A03 3515204100 STOPPER HINGE*T AS KOR-63150S 1 A04 3511706120 DOOR PAINTING AS KOR-634R0S 1 A05 3517002800 BARRIER-SCREEN*I PE 0.1T 1 A06 3512300200 GASKET DOOR PP 1 A07 3513100730 HOOK POM BLACK [...]

30 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. • Tighten two screws. (2) To reduce gap located on part ‘B’ • Loosen two screws on stopper hinge under, [...]

31 (7) KOG-373R0S (8) KOG-393R0S REF. NO PART CODE PART NAME DESCRIPTION QTY REMARK A01 3512203860 FRAME DOOR ABS SG-175 1 A02 3517005630 BARRIER-SCREEN*0 SAN 1 A03 3515204100 SUPPER HINGE*T AS KOR-63150S 1 A04 3511705500 DOOR WELD AS KOR-61150S 1 A05 3517002800 BARRIER-SCREEN*I POLYESTER T0.1 1 A06 3512300200 GASKET DOOR PP 1 A07 3513100700 HOOK P[...]

32 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. 7) Remove the barrier screen outer from door frame. 8) Remove th[...]

33 (1) KOG-371G0S/371H0S REF. NO PART CODE PART NAME DESCRIPTION QTY REMARK B01 3518521610 SWITCH MEMBRANE KOG-371G0S 1 3518521600 KOG-371H0S B02 3516719400 CONTROL-PANEL ABS XR-401 H-2938 1 B03 3514320800 PCB MAIN AS KOG-371G0S 1 B04 7122401211 SCREW TAPPING T2S TRS 4X12 MFZN 3 B05 3513702700 LEVER DOOR OPEN ABS XR-401 H-2938 1 B06 441G430171 SPRI[...]

34 34 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. 5) Detach membrane from the contr[...]

35 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. 5) Detach membrane from the control [...]

36 REF NO. PART CODE PART NAME DESCRIPTION Q’TY REMARK B01 3513404620 KNOB VOLUME ABS XR-401, H-2938 1 B02 3511604510 DECORATOR C-PANEL STS T0.6 1 B03 3516003910 SPECIAL DOUBLE TAPE H0 SUNG 550M T0.15 1 B04 3515501530 WINDOW DISPLAY PMMA T2.0 1 B05 3516721460 CONTROL PANEL ABS XR-401, H-2938 1 B06 3516907430 BUTTON FUNCTION ABS XR-401, COATING 1 [...]

37 REF NO. PART CODE PART NAME DESCRIPTION Q’TY REMARK B01 3513403800 KNOB VOLUME ABS XR-401, H-2938 1 B02 3511604530 DECORATOR C-PANEL STS T0.6 1 B03 3516003960 SPECIAL DOUBLE TAPE H0 SUNG 550M T0.15 1 B04 3515501530 WINDOW DISPLAY PMMA T2.0 1 B05 3516723700 CONTROL PANEL ABS XR-401, H-2938 1 B06 3516907440 BUTTON FUNCTION ABS XR-401 1 B07 PKBPM[...]

38 (9) KOG-373R0S (10) KOG-393R0S REF. NO PART CODE PART NAME DESCRIPTION QTY REMARK B01 3515501540 WINDOW DISPLAY PMMA 1 B02 3516723730 CONTROL PANEL ABS SG-175 1 B03 3516907530 BUTTON FUCTION *A ABS SG-175 1 B04 3516907540 BUTTON FUCTION *B ABS SG-175 1 B05 3513405240 KNOB VOLUME ABS 1 B06 PKBPMSZ300 PCB SUB AS KOG-373R0S 1 B07 7621301011 SCREW T[...]

39 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. 5) Detach membrane from the control [...]

40 40 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. 7) Remove the motor shaded pole. 8) Re[...]

41 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. (7) Reverse the above steps for reassembly except for securing the tray motor cover with s[...]

42 REF. NO PART CODE PART NAME DESCRIPTION QTY REMARK C01 7392500008 NUT HEX 6N-2-5 SUS 1 C02 3515000600 SPACER INSULATOR *I C377BD 2 C03 3513301100 INSULATOR HEATER SPP T0.8 1 C04 3512803400 HEATER 230V 1000W 1R67994001 1 C05 7002500613 SCREW MACHINE TRS 5X6 MFCR 1 C06 7002400413 SCREW MACHINE TRS 4X4 MFCR 2 12. To remove heater parts. ✔ Caution[...]

43 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 o[...]

44 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) KOG-374R/375R0S (1) Primary interlock switch When the door is closed, t[...]

45 45 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 [...]

46 TROUBLE SHOOTING GUIDE CONDITION CHECK Check continuity of magnetron Defective magnetron RESULT No Continuity CAUSE REMEDY Replace Outlet has proper voltage Fuse does not blow. CONDITION CHECK Check continuity of primary interlock switch Malfunction of primary interlock switch RESULT No Continuity CAUSE REMEDY Adjust or replace Turn table motor [...]

47 CONDITION CHECK Check continuity of high voltage fuse RESULT No Continuity Check continuity if high voltage capacitor terminals with wires removed Replace high voltage fuse Continuity CAUSE Defective high voltage transformer REMEDY Replace No microwave oscillation Check continuity of high voltage rectifier in forward and backward direction with [...]

48 (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. A distinct chang[...]

49 1. MEASUREMENT OF THE MICROW A VE 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[...]

50 2. MICROW A VE RADIA TION TEST PROCEDURE 1. Prepare Microwave Energy Survey Meter, 600cc glass beaker, and glass thermometer 100° C (212°F). 2. Pour 275cc ± 15cc of tap water initially at 20 ± 5°C (68 ± 9° F) in the 600 cc glass beaker with an inside diameter of approx. 95 mm(3.5 in.). 3. Place it at the center of the tray and set it in a[...]

51 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 capa[...]

52 WIRING DIAGRAM (1) KOG-371G/H/R0S, KOG-391G/H/R0S, KOG-376T1S, KOG-374R/375R0S, KOG-373R/393R0S[...]

53 (2) KOG-396T1S[...]

54 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 2. Voltage Check - Key check point - Check method NOTE 1. Refer to Ciruit Diagram (point 4). 2. Secondary side voltage of the low voltage transformer changes in proportion to [...]

55 Mesurement point[...]

56 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 2) When touching START pad, oven lamp turns on. Fan motor and turntable rotate and cook indi[...]

57 2. P .C.B. CIRCUIT DIAGRAM[...]

58 NO NAME SYMBOL SPECIFICATION PART CODE Q’TY 1 BUZZER BZ1 BM-20K 3515600100 1 2 C ARRAY CA1 7P(6) 102 M 50V CN6XB-102M 1 3 CAPACITOR ELEC EC1 50V RS 1µF CEXE1H109A 1 4 CPAPCITOR ELEC EC2 25V RSS 1000µF CEXF1E102V 1 5 CONNECTOR WAFER CN1 YW396-02AV 3519150520 1 6 CONNECTOR FILM CN2 FCZ254-11 441M367160 1 7 CONNECTOR WAFER CN3 YW396-05AV 351915[...]

59 NO NAME SYMBOL SPECIFICATION PART CODE Q’TY 1 BUZZER BZ1 BM-20K 3515600100 1 2 C ARRAY CA1 7P(6) 102 M 50V CN6XB-102M 1 3 CAPACITOR ELEC EC1 50V RS 1µF CEXE1H109A 1 4 CPAPCITOR ELEC EC2 25V RSS 1000µF CEXF1E102V 1 5 CONNECTOR WAFER CN1 YW396-02AV 3519150520 1 6 CONNECTOR FILM CN2 FCZ254-11 441M367160 1 7 CONNECTOR WAFER CN3 YW396-05AV 351915[...]

60 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 2. Voltage Check - Key check point - Check method NOTE 1. Refer to Circuit Diagram (point 4). 2. Secondary side voltage of the low voltage trasformer changes in proportion to[...]

61 Mesurement point[...]

62 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 2) When touching START pad, oven lamp turns on. Fan motor and turntable rotate and cook indi[...]

63 2. P .C.B. CIRCUIT DIAGRAM[...]

64 3. P.C.B. LOCATION NO (1) KOG-376T1S NO NAME SYMBOL SPECIFICATION PART CODE Q’TY REMARK 1 BUZZER BZ1 BM-20K 3615600100 1 MAIN 2 C ARRAY CA1 5P(6) 102 M 50V CN4XB-102M 1 “ 3 CAPACITOR ELEC EC1, 2 50V RSS 10 µF CEXE1H100A 2 “ 4 CAPACITOR ELEC EC3 50V RSS 470 µF CEXE1H471V 1 “ 5 CONNECTOR WAFER CN1 YW396-02AV 3519150520 1 “ 6 CONNECTOR [...]

65 (2) KOG-396T1S NO NAME SYMBOL SPECIFICATION PART CODE Q’TY REMARK 1 BUZZER BZ1 BM-20K 3615600100 1 MAIN 2 C ARRAY CA1 5P(6) 102 M 50V CN4XB-102M 1 “ 3 CAPACITOR ELEC EC1, 2 50V RSS 10 µF CEXE1H100A 2 “ 4 CAPACITOR ELEC EC3 50V RSS 470 µF CEXE1H471V 1 “ 5 CONNECTOR WAFER CN1 YW396-02AV 3519150520 1 “ 6 CONNECTOR WAFER CN2 HLEM15S-1 4C[...]

66 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 2. Voltage Check - Key check point - Check method NOTE 1. Refer to Ciruit Diagram (point 4). 2. Secondary side voltage of the low voltage transformer changes in proportion to [...]

67 Mesurement point[...]

68 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 2) When touching START pad, oven lamp turns on. Fan motor and turntable rotate and cook indi[...]

69 2. P .C.B. CIRCUIT DIAGRAM[...]

70 NO NAME SYMBOL SPECIFICATION PART CODE Q’TY REMARK 1 PCB MAIN M160 82X139.9 3514321100 1 MAIN PCB 2 BUZZER BZ1 BM-20K 3515600100 1 3 C ARRAY CA1 5P(4) 102 M 50V CN4XB-102M 1 4 C ELECTRO EC1 16V RSS 100µF CEXF1C101V 1 5 C ELECTRO EC2 25V RSS 1000µF CEXF1E102V 1 6 CONNECTOR WAFER CN1 YW396-02AV 3519150520 1 7 CONNECTOR WAFER CN3 YW396-05AV 351[...]

71 (2) KOG-391R0S NO NAME SYMBOL SPECIFICATION PART CODE Q’TY REMARK 1 PCB MAIN M160 82X139.9 3514321100 1 MAIN PCB 2 BUZZER BZ1 BM-20K 3515600100 1 3 C ARRAY CA1 5P(4) 102 M 50V CN4XB-102M 1 4 C ELECTRO EC1 16V RSS 100µF CEXF1C101V 1 5 C ELECTRO EC2 25V RSS 1000µF CEXF1E102V 1 6 CONNECTOR WAFER CN1 YW396-02AV 3519150520 1 7 CONNECTOR WAFER CN3[...]

72 PRINTED CIRCUIT BOARD <KOG-374R0S, KOG-375R0S> 1. CIRCUIT CHECK PROCEDURE 1. Low V oltage Transformer check • The low voltage transformer is located on the P.C.B. • Measuring condition: input voltage : 230V/Frequency : 50Hz 2. V oltage check • Key check point • Check method NO CHECK POINT REMARK 1 IC 1 PIN 2, 21, 30, 34 –5 VDC 2 [...]

73 Mesurement point[...]

74 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 2) When touching START pad, oven lamp turns on. Fan motor and turntable rotate and cook indi[...]

75 2. P .C.B. CIRCUIT DIAGRAM[...]

76 NAME NAME SYMBOL SPECIFICATION PART CODE Q'TY REMARK 1 PCB MAIN M166 82 X 146.8 3514321140 1 MAIN PCB 2 BUZZER BZ1 BM-20K 3515600100 1 3 C ARRAY CA1 5P(4) 1000PF M 50V CN4XB-102M 1 4 CAPACITOR CERA C6 102 50V Z AXIAL CCZB1H102K 1 5 CAPACITOR CERA C1~5, C7 104 50V Z AXIAL CCZF1H104Z 6 6 CAPACITOR ELEC EC1 16V RSS 100MF CEXF1C101V 1 7 CAPACIT[...]

77 PRINTED CIRCUIT BOARD <KOG-373R0S, KOG-393R0S> 1. CIRCUIT CHECK PROCEDURE 1. Low V oltage Transformer check • The low voltage transformer is located on the P.C.B. • Measuring condition: input voltage : 230V/Frequency : 50Hz 2. V oltage check • Key check point • Check method NO CHECK POINT REMARK 1 IC 1 PIN 2, 21, 30, 34 –5 VDC 2 [...]

78 Mesurement point[...]

79 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 2) When touching START pad, oven lamp turns on. Fan motor and turntable rotate and cook indi[...]

80 2. P .C.B. CIRCUIT DIAGRAM[...]

81 NAME NAME SYMBOL SPECIFICATION PART CODE Q'TY REMARK 1 PCB MAIN M169 90 X 197 3514321150 1 MAIN PCB 2 BUZZER BZ1 BM-20K 3515600100 1 3 C ARRAY CA1 5P(4) 1000PF M 50V CN4XB-102M 1 4 CAPACITOR CERA C4 102 50V Z AXIAL CCZB1H102K 1 5 CAPACITOR CERA C1~C3, C5~C7 104 50V Z AXIAL CCZF1H104Z 6 6 CAPACITOR ELEC EC1 16V RSS 100MF CEXF1C101V 1 7 CAPAC[...]

82 NAME NAME SYMBOL SPECIFICATION PART CODE Q'TY REMARK 1 PCB MAIN M169 90 X 197 3514321150 1 MAIN PCB 2 BUZZER BZ1 BM-20K 3515600100 1 3 C ARRAY CA1 5P(4) 1000PF M 50V CN4XB-102M 1 4 CAPACITOR CERA C4 102 50V Z AXIAL CCZB1H102K 1 5 CAPACITOR CERA C1~C3, C5~C7 104 50V Z AXIAL CCZF1H104Z 6 6 CAPACITOR ELEC EC1 16V RSS 100MF CEXF1C101V 1 7 CAPAC[...]

83 1. DOOR ASSEMBL Y Refer to Disassembly and assembly 2. CONTROL P ANEL ASSEMBL Y Refer to Disassembly and assembly 3. T OT AL ASSEMBL Y EXPLODED VIEW AND P ARTS LIST < KOG-371G/H/R0S, KOG-391G/H/R0S>[...]

84 REF NO PART CODE PART NAME DESCRIPTION Q'TY A00 3511710300 DOOR AS KOG-63150S 1 B00 3516721610 CONTROL PANEL AS KOG-371G0S 1 3516721600 CONTROL PANEL AS KOG-371H0S 1 B01 3516721630 CONTRON PANEL AS KOG-371R0S 1 F01 3510801310 CABINET SECC 1 F02 7112401011 SPECIAL SCREW T1 TRS 4X10 MFZN 3 F03 3516109610 CAVITY AS CAVITY AS 1 F04 7392500008 N[...]

85 REF NO PART CODE PART NAME DESCRIPTION Q'TY F33 3512100900 FOOT PP DASF-130 2 F34 7S422X4081 SPECIAL SCREW TT2 TRS 4X8 MFZN 1 F35 3515201101 STOPPER HINGE *U SCP-1 1 F36 4415A17352 SW MICRO VP-533A-OF SPNO #187 200G 1 F37 4415A66910 SW MICRO VP-531A-OF/SZM-V16-FA-61 1 F38 4415A17352 SW MICRO VP-533A-OF SPNO #187 200G 2 F39 3513702600 LEVER [...]

86 REF NO PART CODE PART NAME DESCRIPTION Q'TY A00 3511710700 DOOR AS KOR-86150S 1 B00 3516721700 CONTROL PANEL AS KOG-391G0S 1 3516721710 CONTROL PANEL AS KOG-391H0S 1 B01 3516721730 CONTROL PANEL AS KOG-391R0S 1 F01 3510801400 CABINET SECC 1 F02 7112401011 SPECIAL SCREW T1 TRS 4X10 MFZN 3 F03 351609910 CAVITY AS CAVITY AS 1 F04 7392500008 NU[...]

87 REF NO PART CODE PART NAME DESCRIPTION Q'TY F33 3512100900 FOOT PP DASF-130 2 F34 7S422X4081 SPECIAL SCREW TT2 TRS 4X8 MFZN 1 F35 3515201101 STOPPER HINGE *U SCP-1 1 F36 4415A17352 SW MICRO VP-533A-OF SPNO #187 200G 1 F37 4415A66910 SW MICRO VP-531A-OF/SZM-V16-FA-61 1 F38 4415A17352 SW MICRO VP-533A-OF SPNO #187 200G 2 F39 3513702600 LEVER [...]

88 1. DOOR ASSEMBL Y Refer to Disassembly and assembly 2. CONTROL P ANEL ASSEMBL Y Refer to Disassembly and assembly 3. T OT AL ASSEMBL Y (1) KOG-376T1S EXPLODED VIEW AND P ARTS LIST < KOG-376T1S, KOG-396T1S>[...]

89 REF NO PART CODE PART NAME DESCRIPTION Q'TY A00 3511710380 DOOR AS KOR-636T1S 1 B00 3516721620 CONTROL-PANEL AS KOG-376T1S 1 C00 3513302700 INSULTOR HEATER AS KOG-37150S 1 F01 3510801310 CABINET SECC 1 F02 7112401011 SPECIAL SCREW T1 TRS 4X10 MFZN 3 F03 3516109610 CAVITY AS CAVITY AS 1 F04 7392500008 NUT HEX 6N-2-5 2 F05 7122401211 SCREW TA[...]

90 REF NO PART CODE PART NAME DESCRIPTION Q'TY F35 4415A17352 SW MICRO VP-533A-OF SPNO #187 200G 1 F36 4415A66910 SW MICRO VP-531A-OF/SZM-V16-FA-61 1 F37 4415A17352 SW MICRO VP-533A-OF SPNO #187 200G 1 F38 4415A17352 SW MICRO VP-533A-OF SPNO #187 200G 1 F39 3513702610 LEVER LOCK POM 1 F40 3513811710 LOCK POM 1 F41 3513601600 LAMP BL 240V 25W T[...]

91 (2) KOG-396T1S (2) KOG-396T1S[...]

92 NO. PART CODE PART NAME DESCRIPTION SUPPLY REMARK A00 DOOR AS O B00 CONTROL-PANEL AS O C00 INSULATOR HEATER AS O F01 3510801310 CABINET SECC O F02 7112401011 SPECIAL SCREW T1 TRS 4X10 MFZN O F03 3516109910 CAVITY AS KOG-37150S O F04 7392500008 NUT HEX 6N-2-5 O F05 7122401211 SCREW TAPPING T2S TRS 4X12 MFZN O F06 3518904500 THERMOSTAT OFF:100 ON:[...]

93 1. DOOR ASSEMBL Y Refer to Disassembly and assembly 2. CONTROL P ANEL ASSEMBL Y Refer to Disassembly and assembly 3. T OT AL ASSEMBL Y (1) KOG-374R0S EXPLODED VIEW AND P ARTS LIST < KOG-374R0S>[...]

94 NO. PART CODE PART NAME DESCRIPTION SUPPLY REMARK A00 DOOR AS O B00 CONTROL-PANEL AS O C00 INSULATOR HEATER AS O F01 3510801310 CABINET SECC O F02 7112401011 SPECIAL SCREW T1 TRS 4X10 MFZN O F03 3516109610 CAVITY AS KOG-37150S O F04 7392500008 NUT HEX 6N-2-5 O F05 7122401211 SCREW TAPPING T2S TRS 4X12 MFZN O F06 3518904500 THERMOSTAT OFF:100 ON:[...]

95 1. DOOR ASSEMBL Y Refer to Disassembly and assembly 2. CONTROL P ANEL ASSEMBL Y Refer to Disassembly and assembly 3. T OT AL ASSEMBL Y (1) KOG-375R0S EXPLODED VIEW AND P ARTS LIST < KOG-375R0S>[...]

96 NO. PART CODE PART NAME DESCRIPTION SUPPLY REMARK A00 DOOR AS O B00 CONTROL-PANEL AS O C00 INSULATOR HEATER AS O F01 3510801310 CABINET SECC O F02 7112401011 SPECIAL SCREW T1 TRS 4X10 MFZN O F03 3516109610 CAVITY AS KOG-37150S O F04 7392500008 NUT HEX 6N-2-5 O F05 7122401211 SCREW TAPPING T2S TRS 4X12 MFZN O F06 3518904500 THERMOSTAT OFF:100 ON:[...]

97 1. DOOR ASSEMBL Y Refer to Disassembly and assembly 2. CONTROL P ANEL ASSEMBL Y Refer to Disassembly and assembly 3. T OT AL ASSEMBL Y EXPLODED VIEW AND P ARTS LIST < KOG-373R0S, KOG-393R0S>[...]

98 REF NO PART CODE PART NAME DESCRIPTION Q'TY A00 3511712170 DOOR AS KOG-63350S 1 B00 PKCPSWZ600 CONTROL PANEL AS KOG-373R0S 1 C00 3513302700 HEATER AS KOG-37150S 1 F01 3510801310 CABINET SECC 1 F02 7112401011 SCREW TAPPING T1 TRS 4X10 MFZN 3 F03 3516109610 CAVITY AS CAVITY AS 1 F04 7392500008 NUT HEX 6N-2-5 2 F05 7122401211 SCREW TAPPING T2S[...]

99 REF NO PART CODE PART NAME DESCRIPTION Q'TY F33 3512100900 FOOT PP DASF-130 2 F34 7S422X4081 SPECIAL SCREW TT2 TRS 4X8 MFZN 1 F35 3515201101 STOPPER HINGE *U SCP-1 1 F36 4415A17352 SW MICRO VP-533A-OF SPNO #187 200G 1 F37 4415A66910 SW MICRO VP-531A-OF/SZM-V16-FA-61 1 F38 4415A17352 SW MICRO VP-533A-OF SPNO #187 200G 2 F39 3513702610 LEVER [...]

100 REF NO PART CODE PART NAME DESCRIPTION Q'TY A00 3511712720 DOOR AS KOR-86350S 1 B00 PKCPSWT500 CONTROL PANEL AS KOG-393R0S 1 3516721710 CONTROL PANEL AS KOG-391H0S 1 C00 3513302700 HEATER AS KOG-37150S 1 F01 3510801400 CABINET SECC 1 F02 7112401011 SCREW TAPPING T1 TRS 4X10 MFZN 3 F03 3516109910 CAVITY AS CAVITY AS 1 F04 7392500008 NUT HEX[...]

101 REF NO PART CODE PART NAME DESCRIPTION Q'TY F33 3512100900 FOOT PP DASF-130 2 F34 7S422X4081 SPECIAL SCREW TT2 TRS 4X8 MFZN 1 F35 3515201101 STOPPER HINGE *U SCP-1 1 F36 4415A17352 SW MICRO VP-533A-OF SPNO #187 200G 1 F37 4415A66910 SW MICRO VP-531A-OF/SZM-V16-FA-61 1 F38 4415A17352 SW MICRO VP-533A-OF SPNO #187 200G 2 F39 3513702610 LEVER[...]

DAEWOO ELECTRONICS CO., L TD. 686, AHYEON-DONG MAPO-GU SEOUL, KOREA C.P.O. BOX 8003 SEOUL, KOREA TELEX: DWELEC K28177-8 CABLE: “DAEWOOELEC” E-MAIL : G7F00E@web.dwe.co.kr FAX: 02) 360-8184 TEL: 02) 360-8179~8180 PRINTED DA TE: Dec. 1999[...]