Daewoo Electronics Kog 371H0S Users Manual

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Service Manual
Microwave Oven
Model :KOG-371G0S
KOG-371H0S
KOG-376T1S
KOG-371R0S
KOG-374R0S
KOG-373R0S

KOG-391G0S
KOG-391H0S
KOG-396T1S
KOG-391R0S
KOG-375R0S
KOG-393R0S

✔ 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).

DAEWOO ELECTRONICS CO., LTD.

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.
(c) Before turning on power to the microwave oven for any service test or inspection within the
microwave generating compartments, check the magnetron, wave huide or transmission line, and
cavity for proper alignment, integrity, and connections.
(d) Any defective or misadjusted components in the interlock, monitor, door seal, and microwave
generation and transmission systems shall be repaired, replaced, or adjusted by procedures
described in this manual before the oven is released to the owner.
(e) A microwave leakage check to verify compliance with the Federal Performance Standard should
be performed on each oven prior to release to the owner.

TABLE OF CONTENTS
SAFETY AND PRECAUTIONS..................................................................................................................................2
1. FOR SAFE OPERATION .....................................................................................................................2
2. FOR SAFE SERVICE PROCEDURES ................................................................................................2
SPECIFICATIONS......................................................................................................................................................3
EXTERNAL VIEW ......................................................................................................................................................4
1. OUTER DIMENSION............................................................................................................................4
2. FEATURE DIAGRAM ...........................................................................................................................6
3. CONTROL PANEL .............................................................................................................................12
INSTALLATION .......................................................................................................................................................19
OPERATIONS AND FUNCTIONS ...........................................................................................................................20
DISASSEMBLY AND ASSEMBLY ..........................................................................................................................21
INTERLOCK MECHANISM AND ADJUSTMENT ...................................................................................................43
TROUBLE SHOOTING GUIDE................................................................................................................................45
MEASUREMENT AND TEST...................................................................................................................................49
1. MEASUREMENT OF THE MICROWAVE POWER OUTPUT ...........................................................49
2. MICROWAVE RADIATION TEST ......................................................................................................50
3. COMPONENT TEST PROCEDURE ..................................................................................................51
WIRING DIAGRAM ..................................................................................................................................................52
PRINTED CIRCUIT BOARD ............................................................................................................54, 60, 66, 72, 77
1. CIRCUIT CHECK PROCEDURE ...............................................................................55, 61, 67, 73, 78
2. PCB CIRCUIT DIAGRAM...........................................................................................57, 63, 69, 75, 80
3. P.C.B. LOCATION NO. ..............................................................................................58, 64, 70, 76, 81
EXPLODED VIEW AND PARTS LIST .....................................................................................................................83
1. DOOR ASSEMBLY ............................................................................................................................83
2. CONTROL PANEL ASSEMBLY.........................................................................................................83
3. TOTAL ASSEMBLY............................................................................................................................83

1

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)
2)
3)
4)
5)

A broken door hinge.
A broken door viewing screen.
A broken front panel, oven cavity.
A loosened door lock.
A broken door lock.

The door gasket plate and oven cavity surface should be kept clean.
No grease, soil or spatter should be allowed to build up on these surfaces or inside the oven.
DO NOT ATTEMPT TO OPERATE THIS APPLIANCE WITH THE DOOR OPEN. The microwave oven has
concealed switches to make sure the power is turned off when the door is opened. Do not attempt to defeat them.
DO NOT ATTEMPT TO SERVICE THIS APPLIANCE UNTIL YOU HAVE READ THIS SERVICE MANUAL.
2. FOR SAFE SERVICE PROCEDURES.
1) If the oven is operative prior to servicing, a microwave emission check should be performed prior to servicing
the oven.
2) If any certified oven unit is found to servicing, a microwave emission check should be performed prior to
servicing the oven.
(a) inform the manufacturer, importer or assembler,
(b) repair the unit at no cost to the owner,
(c) attempt to ascertain the cause of the excessive leakage,
(d) tell the owner of the unit not to use the unit until the oven has been brought into compliance.
3) If the oven operates with the door open, the service person should tell the user not to operate the oven and
contact the manufacturer immediately.

IMPORTANT
The wire 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’, symbol or coloured green-and-yellow.
The wire which is coloured blue must be connected to the terminal which is marked with the letter ‘N’ or
coloured black.
The wire which is coloured brown must be connected to the terminal which is marked with the letter ‘L’ or
coloured red.

NOTE : This oven is designed for counter-top use only.

2

SPECIFICATIONS
MODEL
POWER SUPPLY

KOG-371G/H/R0S, KOG-374R/5R0S
KOG-391G/H/R0S
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)
465X279X360mm
495X294X388mm
(18.3X11.0X14.2 in)
(19.5X11.6X15.3 in)
CAVITY DIMENSIONS(WXHXD)
290X220X306mm
320X244X338mm
(11.4X8.7X12.0 in)
(12.6X9.6X13.3 in)
NET WEIGHT
APPROX. 14Kg(30.9 lbs)
APPROX. 16Kg(35.3 lbs)
TIMER
59 min. 90 sec.
FUNCTION SELECTIONS
MICROWAVE / GRILL / COMBINATION
POWER SELECTIONS*
10 LEVELS / 5 LEVELS
CAVITY VOLUME
0.7 Cu. Ft.
0.9 Cu. Ft.
- POWER SELECTIONS* : KOG-371R/391R0S : 5 LEVELS.

MODEL
POWER SUPPLY
MICROWAVE
POWER CONSUMPTION GRILL
COMBINATION
MICROWAVE ENERGY OUTPUT
MICROWAVE FREQUENCY
OUTSIDE DIMENSIONS(WXHXD)
CAVITY DIMENSIONS(WXHXD)
NET WEIGHT
TIMER
FUNCTION SELECTIONS
POWER SELECTIONS
CAVITY VOLUME

MODEL
POWER SUPPLY
MICROWAVE
POWER CONSUMPTION GRILL
COMBINATION
MICROWAVE ENERGY OUTPUT
MICROWAVE FREQUENCY
OUTSIDE DIMENSIONS(WXHXD)
CAVITY DIMENSIONS(WXHXD)
NET WEIGHT
TIMER
FUNCTION SELECTIONS
POWER SELECTIONS
CAVITY VOLUME

KOG-376T1S
KOG-396T1S
230~, 50Hz SINGLE PHASE WITH EARTHING
1200W
1350W
1050W
1050W
2200W
1350W
800W
950W
2450 MHz
465X279X370mm
495X294X403mm
(18.3X11.0X14.6 in)
(19.5X11.6X15.9 in)
290X220X306mm
320X244X338mm
(11.4X8.7X12.0 in)
(12.6X9.6X13.3 in)
APPROX. 14Kg(30.9 lbs)
APPROX. 16Kg(35.3 lbs)
60 min. 00 sec.
MICROWAVE / GRILL / COMBINATION
4 LEVELS
0.7 Cu. Ft.
0.9 Cu. Ft.

KOG-373R0S
KOG-393R0S
230~, 50Hz SINGLE PHASE WITH EARTHING
1200W
1350W
1050W
1050W
2200W
2350W
800W
950W
2450 MHz
465X279X365mm
495X294X392mm
(18.3X11.0X14.4 in)
(19.5X11.6X15.4 in)
290X220X306mm
320X244X338mm
(11.4X8.7X12.0 in)
(12.6X9.6X13.3 in)
APPROX. 14Kg(30.9 lbs)
APPROX. 16Kg(35.3 lbs)
59 min. 90 sec.
MICROWAVE / GRILL / COMBINATION
5 LEVELS
0.7 Cu. Ft.
0.9 Cu. Ft.

3

EXTERNAL VIEW
1. OUTER DIMENSION
1) KOG-371G/H0S, KOG-391G/H0S

360/388

279/294

465/495

2) KOG-376T1S, KOG-396T1S

3) KOG-373R0S, KOG-393R0S

365/392

279/294

465/495

4

4) KOG-371R0S, KOG-391R0S

360/388

279/294

465/495

5) KOG-374R0S

360

279

465

6) KOG-375R0S

360

279

465

5

2. FEATURE DIAGRAM
1) KOG-371G/H0S, KOG-391G/H0S

1

2

3

4

5

6

7

12 11

10

9

8

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.
7. METAL RACK
8. COUPLER - This fits over the shaft in the center of the ovens cavity floor. This is to remain in the oven
for all cooking.
9. ROLLER GUIDE - This must always be used for cooking together with the glass cooking tray.
10. GLASS COOKING TRAY - Made of special heat resistant glass. Food in a proper receptacle is
placed on this tray for cooking.
11. DOOR VIEWING SCREEN - Allows viewing of food. The screen is designed so that light can pass
through, but not the microwave.
12. DOOR HOOK - When the door is closed, it will automatically shut off. If the door is opened while the

6

2) KOG-376T1S, KOG-396T1S

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. METAL RACK
8. COUPLER - This fits over the shaft in the center of the ovens cavity floor. This is to remain in the oven
for all cooking.
9. ROLLER GUIDE - This must always be used for cooking together with the glass cooking tray.
10. GLASS COOKING TRAY - Made of special heat resistant glass. Food in a proper receptacle is
placed on this tray for cooking.
11. DOOR VIEWING SCREEN - Allows viewing of food. The screen is designed so that light can pass
through, but not the microwave.
12. DOOR HOOK - When the door is closed, it will automatically shut off. If the door is opened while the
oven is operating, the magnetron will immediately stop operating.

7

3) KOG-371R0S, KOG-391R0S

1

2

3

4

5

6

7

12

11

10

9

8

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. METAL RACK
9. COUPLER - This fits over the shaft in the center of the ovens cavity floor. This is to remain in the oven
for all cooking.
10. ROLLER GUIDE - This must always be used for cooking together with the glass cooking tray.
11. GLASS COOKING TRAY - Made of special heat resistant glass. Food in a proper receptacle is
placed on this tray for cooking.
12. DOOR VIEWING SCREEN - Allows viewing of food. The screen is designed so that light can pass
through, but not the microwave.
13. DOOR HOOK - When the door is closed, it will automatically shut off. If the door is opened while the
oven is operating, the magnetron will immediately stop operating.

8

4) KOG-374R0S

q

1

2

3

5

6
0

4

8

9

7

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.
8. ROLLER GUIDE - This must always be used for cooking together with the glass cooking tray.
9. GLASS COOKING TRAY - Made of special heat resistant glass. Food in a proper receptacle is placed
on this tray for cooking.
10. DOOR VIEWING SCREEN - Allows viewing of food. The screen is designed so that light can pass
through, but not the microwave.
11. DOOR HOOK - When the door is closed, it will automatically shut off. If the door is opened while the
oven is operating, the magnetron will immediately stop operating.

9

5) KOG-375R0S

q

1

2

3

5

6
0

4

8

9

7

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.
8. ROLLER GUIDE - This must always be used for cooking together with the glass cooking tray.
9. GLASS COOKING TRAY - Made of special heat resistant glass. Food in a proper receptacle is placed
on this tray for cooking.
10. DOOR VIEWING SCREEN - Allows viewing of food. The screen is designed so that light can pass
through, but not the microwave.
11. DOOR HOOK - When the door is closed, it will automatically shut off. If the door is opened while the
oven is operating, the magnetron will immediately stop operating.

10

6) KOG-373R0S, KOG-393R0S

1

2

3

4

5

6

q

0

9

8

7

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.
8. ROLLER GUIDE - This must always be used for cooking together with the glass cooking tray.
9. GLASS COOKING TRAY - Made of special heat resistant glass. Food in a proper receptacle is placed
on this tray for cooking.
10. DOOR VIEWING SCREEN - Allows viewing of food. The screen is designed so that light can pass
through, but not the microwave.
11. DOOR HOOK - When the door is closed, it will automatically shut off. If the door is opened while the
oven is operating, the magnetron will immediately stop operating.

11

3. CONTROL PANEL
1) KOG-371G0S, KOG-391G0S

2
M/W

Def.

Grill

Combi Timer/g

1. BREAD
2. SOUP
3. BAKED POTATO
4. FRESH VEGETABLE
5. FROZEN VEGETABLE

Auto

Cook

4
3

Pasta
Beverage

Frozen Pizza

5

6
Auto Defrost

7
Fish

8
0

Meat

COMBI

GRILL

Defrost

Power

Kitchen
Timer

Clock

w

ur

1ho

10M

r

Poultry

STOP/
CLEAR

in

q
in

10m

1M

9

1m

10S

START/
SPEEDY COOK

e
1
t

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. AUTO COOK - Used to cook or reheat.
5. MORE - Used to add time to cooking.
6. LESS - Used to remove time from cooking.
7. AUTO DEFROST - Used to defrost foods.(for weight)
8. COMBI - Used to cook COMBI.
9. GRILL - Used to cook GRILL.
10. POWER - Used to set power level.
11. DEFROST
12. KITCHEN TIMER - Used as a minute timer, to delay the start of cooking, or to set a holding time after
cooking.
13. CLOCK - Used to set clock.
14. STOP/CLEAR - Used to stop the oven operation or to delete the cooking data.
15. START/SPEEDY COOK - Used to start the oven and also used to set a reheat time.

12

2) KOG-371H0S, KOG-391H0S

2
M/W

Def.

Grill

Combi Timer/g

Frozen Pizza

4

3
Fresh Vegetable

Beverage

Dish Warmer

5

Pasta

Auto Defrost

6
Fish

7
9

Meat

COMBI

GRILL

Defrost

Power

Kitchen
Timer

Clock

q

ur

1ho

10M

e

Poultry

STOP/
CLEAR

in

0
in

10m

1M

8

1m

10S

START/
SPEEDY COOK

w
1
r

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. LESS - Used to remove time from cooking.
6. AUTO DEFROST - Used to defrost foods.(for weight)
7. COMBI - Used to cook COMBI.
8. GRILL - Used to cook GRILL.
9. POWER - Used to set power level.
10. DEFROST
11. KITCHEN TIMER - Used as a minute timer, to delay the start of cooking, or to set a holding time after
cooking.
12. CLOCK - Used to set clock.
13. STOP/CLEAR - Used to stop the oven operation or to delete the cooking data.
14. START/SPEEDY COOK - Used to start the oven and also used to set a reheat time.

13

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).
4. Stop/Clear - Used to stop the operation or to delete the cooking data.
5. Auto Cook - Used to cook using a program.
6. Knob - Turm to set the cooking menu and select a microwave power level.
7. Knob - Dial for setting time and weight.(You can also extend the time of the current operation by 1
minute by turning the dial knob, except defrosting)

14

4) KOG-371R0S, KOG-391R0S

1
M/W

DEF.

Grill

Combi

g

Grill/Combi

3

Power/Def.

1. Dinner plate
2. Soup
3. Beverage
4. Fresh vegetable

2

Auto cook

4
Start/
Easy cook

5

Stop/Clear

6
7

Weight/
Time
Clock

8

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. Stop / Clear - Used to stop the oven operation or to erase all entries.
7. Clock - Used to set clock.
8. Dial Knob - Used to set the time and weight.

15

4) KOG-374R0S

1

Power/Def

3

Grill/Combi

2

Clock

7
Auto Cook

1. Dinner Plate
2. Soup
3. Beverage
4. Fresh Vegetable

4

ght/Time
Wei

8
6
5
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. 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. Stop / Clear - Used to stop the oven operation or to erase all entries.
7. Clock - Used to set clock.
8. Dial Knob - Used to set the time and weight.

16

4) KOG-375R0S

1
3
2
7

Power/Def

Grill/Combi

Clock

1. Dinner Plate
2. Soup
3. Beverage
4. Fresh Vegetable

Auto Cook

4

ight/Time
We

8
6
5
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. 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. Stop / Clear - Used to stop the oven operation or to erase all entries.
7. Clock - Used to set clock.
8. Dial Knob - Used to set the time and weight.

17

5) KOG-373R0S, KOG-393R0S

KOG-373R

Auto cook
1. Dinner Plate
2. Soup
3. Beverage
4. Fresh Vegetable

Grill/Combi

Power/
Defrost

4
2
3

Clock

7
1

M/W

DEF. Grill

Combi g

6
Stop/
Clear

5
Start/
Easy cook

8
We

ig h-Ti m e

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 reheat time by 30 seconds.
6. Stop / Clear - Used to stop the oven operation or to erase all entries.
7. Clock - Used to set clock.
8. Dial Knob - Used to set the time and weight.

18

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.
3. Away from radio and TV sets
Poor television reception and radio interference may result if the oven is located close to a TV, radio, antenna or
feeder and so on.
Position the oven as far from them as possible.
4. Away from heating appliances and water taps
Keep the oven away from hot air, steam or splash when choosing a place to position it, or the insulation might be
adversely affected and breakdowns occur.
5. Power supply
• Check your local power source.
This microwave oven requires a current of approximately 11 amperes, 230 Volts, 50 Hz.
• Power supply cord is about 1.4 meters long.
• The voltage used must be the same as specified on this oven. Using a higher voltage may result in a fire or other
accident causing oven damage. Using low voltage will cause slow cooking. We are not responsible for damage
resulting from use of this oven with a voltage of ampere fuse other than those specified.
• This appliance is supplied with cable of special type, which, if damaged, must be reparied with cable of same type.
Such a cable can be purchased from DAEWOO and must be installed by Qualified Person.
6. Examine the oven after unpacking for any damage such as:
A misaligned door, broken door or a dent in cavity.
If any of the above are visible, DO NOT INSTALL, and notify dealer immediately.
7. Do not operate the oven if it is colder than room temperature
(This may occur during delivery in cold weather.) Allow the oven to become room temperature before operating.

EARTHING INSTRUCTIONS
This appliance must be earthed. In the event of an electrical short circuit, earthing reduces the risk of the electric
shock by providing an escape wire for the electric current. This appliance is equipped with a cord having a
earthing wire with a earthing plug. The plug must be plugged into an outlet that is properly installed and earthed.

WARNING : Improper use of the earthing plug can result in a risk of electric shock. Consult a qualified electrician or
serviceman if the earthing instructions are not completely understood, or if doubt exists as to whether
the appliance is properly earthed, and either : If it is necessary to use an extension cord, use only a 3wire extension cord that has a 3-blade earthing plug, and a 3-slot receptacle that will accept the plug on
the appliance. The marked rating of the extension cord should be equal to or greater than the electrical
rating of the appliance, or Do not use an extension cord.

19

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. 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 by touching the door release button on the control
panel.
The oven will automatically shut off. To restart the oven, close the door and then touch START.
6. Each time a pad or a button is touched, a BEEP will sound to acknowledge the touch.
7. The oven automatically cook on full power unless set to a lower power level.
8. The display will show : 0 when the oven is plugged in.
9. Time clock returns to the present time when the cooking time ends.
10. When the STOP/CLEAR pad or button is touched during the oven operation, the oven stops cooking and all
information retained.
To erase all infomation (except the present time), touch the STOP/CLEAR pad once more. If the oven door is
opened during the oven operation, all information is retained.
11. If the START pad is touched and the oven does not operate, check the area between the door and door is closed
securely. The oven will not start cooking under the door is completely closed or the program has been reset.
12. When using the GRILL or COMBI mode;
• Do not open the door so often, the temperature inside the oven derease and the cooking may not be completed
in setting time.
• Never touch the oven window and metal interior of the oven when taking food in and out, because the
temperature inside the oven and door is very high.
• When using these modes, be careful as the tray will be hot to touch, use oven gloves or pot holders while
handling tray.

Make the oven is properly installed and plugged into the electrical outlet.

Wattage output chart
The power level is set by pressing the power pad. The chart shows the display, the power level and the percentage
of power.
Touch Power pad

Power level (Display)

Approximate Percentage of Power

or button

A

B

A

B

Once

P-H1

P-HI

100%

100%

Twice

P-90

P-80

90%

80%

3 times

P-80

P-60

80%

60%

4 times

P-70

P-40

70%

40%

5 times

P-60

P-20

60%

20%

6 times

P-50

—

50%

—

7 times

P-40

—

40%

—

8 times

P-30

—

30%

—

9 times

P-20

—

20%

—

10 times

P-10

—

10%

—

11 times

P-00

—

0%

—

*A : KOG-371G/H0S, KOG-391G/H0S
*B : KOG-371R0S, KOG-391R0S, KOG-374R/375R0S

20

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.
1. Always remove the power plug from the outlet before servicing.
2. Use an insulated screwdriver and ware rubber gloves when servicing the high voltage side.
3. Discharge the high voltage capacitor before touching any oven components or wiring.

(1) Check the earthed.
Do not operate on a two wire extension cord.
The microwave oven is designed to be used with earthed.
It is imperative, therefore, to makes sure it is earthed properly before
beginning repair work.

(2) Warning about the electric charge in the high voltage capacitor.
For about 30 seconds after the operation stopped, and electric
charge remains in the high voltage capacitor. When replacing or
checking parts, short between oven chassis and the negative high
terminal of the high voltage capacitor, by using a properly insulted
screwdriver to discharge.

4. When the 15A fuse is blown out due to the operation of the monitor
switch; replace primary interlock switch, secondary interlock switch
and interlock monitor switch.
Refer to next page for the necessary adjustment.
5. After repair or replacement of parts, make sure that the screws are properly tightened, and all electrical
connections are tightened.
6. Do not operate without cabinet.

CAUTION : Service personnel should remove their watches whenever working close to or replacing the
magnetron.

WARNING : When servicing the appliance, need a care of touching or replacing high potential parts because
of electrical shock or exposing microwave. These parts are as follows-HV Transformer,
Magnetron, HV Capacitor, HV Diode. HV Fuse.

21

DISASSEMBLY AND ASSEMBLY
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 check of correct alignment with the hinge and cavity
front plate.

22

✔ 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)

3. To remove door parts.

(1) KOG-371G0S/371H0S/371R0S
REF. NO

PART CODE

PART NAME

DESCRIPTION

QTY

A01

3512203800

FRAME DOOR

ABS XR-401 H-2938

1

A02

3517003050

BARRIER-SCREEN*0

ACRYL

1

A03

3515304610

SUPPORTER BARR-S*0

PP

1

A04

3515204100

STOPPER HINGE *T AS

KOR-63150S

1

A05

3511705500

DOOR WELD AS

KOR-61150S

1

A06

3517002800

BARRIER-SCREEN *I

POLYESTER T0.1

1

A07

3512300200

GASKET DOOR

PP

1

A08

3513100700

HOOK

POM

1

A09

3515101300

SPRING HOOK

PW1

1

REMARK

(2) KOG-391G0S/391H0S/391R0S
REF. NO

PART CODE

PART NAME

DESCRIPTION

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

A06

3517002900

BARRIER-SCREEN *I

POLYESTER T0.1

1

A07

3512300400

GASKET DOOR

PP

1

A08

3513100700

HOOK

POM

1

A09

3515101300

SPRING HOOK

PW1

1

23

QTY

REMARK

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 the above steps for reassembly.

4. Method to reduce the gap between the door seal and the oven front surface.
1) To reduce gap located on part ‘A’.
• Loosen a screw on stopper hinge top, and then push the
door to contact the door seal to oven front surface.
• Tighten a screw.
2) To reduce gap located on part ‘B’.
• Loosen two screws on stopper hinge under, and then push
the door to contact the door seal to oven front surface.
• Tighten two screws.

A

B

NOTE : A small gap may be acceptable if the microwave leakage does not exceed 4mW/cm2.

24

✔ 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)

(3) KOG-376T1S
REF. NO
A01
A02
A03
A04
A05
A06
A07
A08
A09
A11
A12

PART CODE
3512203830
3517005610
3515306500
3511603800
3511706100
3517002800
3515204110
3515101310
3513100730
7122401211
3512300200

PART NAME
FRAME DOOR
BARRIER-SCREEN*0
SUPPORTER BARR-S*0
DECORATOR DOOR
DOOR PAINTING AS
BARRIER-SCREEN *I
STOPPER HINGE *T AS
SPRING HOOK
HOOK
SCREW TAPPING
GASKET DOOR

DESCRIPTION
ABS
PMMA 1.5t
ABS
ABS
KOR-61150S
KOR-61150S PE 0.1t
KOR-636T1S SCP T2.6
HSW-3
KOR-6325 POM
T2S TRX 4X12 MFZN
KOR-61150S PP

QTY
1
1
1
1
1
1
1
1
1

PART NAME
FRAME DOOR
BARRIER-SCREEN*0
SUPPORTER BARR-S*0
DECORATOR DOOR
DOOR PAINTING AS
BARRIER-SCREEN *I
STOPPER HINGE *T AS
SPRING HOOK
HOOK
SCREW TAPPING
GASKET DOOR

DESCRIPTION
ABS
PMMA 1.5t
ABS
ABS
KOR-866T1S
KOR-866T1S PE 0.1t
KOR-636T1S SCP T2.6
HSW-3
KOR-6325 POM
T2S TRX 4X12 MFZN
KOR--86671S PP

QTY
1
1
1
1
1
1
1
1
1
1
1

REMARK

1

(4) KOG-396T1S
REF. NO
A01
A02
A03
A04
A05
A06
A07
A08
A09
A11
A12

PART CODE
3512204130
3517005710
3515306600
3511604000
3511711800
3517006000
3515204110
3515101310
3513100730
7122401211
3512302000

25

REMARK

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) Remove the decorater door rrom door frame.
9) Reverse the above steps for reassembly.

4. Method to reduce the gap between the door seal and the oven front surface.
1) To reduce gap located on part ‘A’.
• Loosen a screw on stopper hinge top, and then push the
door to contact the door seal to oven front surface.
• Tighten a screw.
2) To reduce gap located on part ‘B’.
• Loosen two screws on stopper hinge under, and then push
the door to contact the door seal to oven front surface.
• Tighten two screws.

NOTE : A small gap may be acceptable if the microwave leakage does not exceed 4mW/cm2.

26

✔ 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)

(5) KOG-374R0S
REF NO.

PART CODE

PART NAME

DESCRIPTION

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

1

A08

3515101310

SPRING HOOK

HSW-3

1

A09

7001503311

SCREW MACHINE

PAN 5X33 MFZN

2

A10

3512603210

HANDLE DOOR

STEEL NI + CR

1

A11

3511601500

DECORATOR LOGO

AL T1.5

1

A12

3511604610

DECORATOR DOOR*U

STS T0.6

1

A13

3511604600

DECORATOR DOOR*T

STS T0.6

1

A14

3516003940

SPECIAL DOUBLE TAPE

H0 SUNG 550M

1

27

Q’TY

REMARK

(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.
(7) Reverse the above steps for reassembly.

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, and
then push the door to contact the door seal to oven
front surface.
• Tighten two screws.

NOTE : A small gap may be acceptable if the microwave leakage does not exceed 4mW/cm2.

28

✔ 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) KOG-375R0S
REF NO.
A01
A02
A03
A04
A05
A06
A07
A08
A09
A10
A11
A12
A13
A14
A15

PART CODE
3512203850
3517005620
3515204100
3511706120
3517002800
3512300200
3513100730
3515101310
7122401611
3512603300
3512603400
3511601500
3511604610
3511604600
3516003940

PART NAME
FRAME DOOR
BARRIER-SCREEN*O
STOPPER HINGE*T AS
DOOR PAINTING AS
BARRIER-SCREEN*I
GASKET DOOR
HOOK
SPRING HOOK
SCREW TAPPING
HANDLE DOOR *U
HANDLE DOOR *T
DECORATOR LOGO
DECORATOR DOOR*U
DECORATOR DOOR*T
SPECIAL DOUBLE TAPE

DESCRIPTION
ABS XR-401, H-2938
TEMP GLASS T3.2
KOR-63150S
KOR-634R0S
PE 0.1T
PP
POM BLACK
HSW-3
T2SN TRS 4X16 MFZN
ABS XR-401, H-2938
STS T0.6
AL T1.5
STS T0.6
STS T0.6
H0 SUNG 550M T0.15 27MM

(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 barrier screen outer from door frame.
(7) Reverse the above steps for reassembly.

29

Q’TY
1
1
1
1
1
1
1
1
2
1
1
1
1
1
1

REMARK

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, and
then push the door to contact the door seal to oven
front surface.
• Tighten two screws.

NOTE : A small gap may be acceptable if the microwave leakage does not exceed 4mW/cm2.

30

✔ 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) KOG-373R0S
REF. NO
A01
A02
A03
A04
A05
A06
A07
A08

PART CODE
3512203860
3517005630
3515204100
3511705500
3517002800
3512300200
3513100700
3515101300

PART NAME
FRAME DOOR
BARRIER-SCREEN*0
SUPPER HINGE*T AS
DOOR WELD AS
BARRIER-SCREEN*I
GASKET DOOR
HOOK
SPRING HOOK

DESCRIPTION
ABS SG-175
SAN
KOR-63150S
KOR-61150S
POLYESTER T0.1
PP
POM
PW1

QTY
1
1
1
1
1
1
1
1

REMARK

PART NAME
FRAME DOOR
BARRIER-SCREEN*0
SUPPER HINGE*T AS
DOOR WELD AS
BARRIER-SCREEN*I
GASKET DOOR
HOOK
SPRING HOOK

DESCRIPTION
ABS SG-175
ACRYL
KOR-63150S
KOR-81250S
POLYESTER T0.1
PP
POM
PW1

QTY
1
1
1
1
1
1
1
1

REMARK

(8) KOG-393R0S
REF. NO
A01
A02
A03
A04
A05
A06
A07
A08

PART CODE
3512204170
3517005740
3515204100
3511705620
3517002900
3512300400
3513100700
3515101300

31

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 the above steps for reassembly.

4. Method to reduce the gap between the door seal and the oven front surface.
1) To reduce gap located on part ‘A’.
• Loosen a screw on stopper hinge top, and then push the
door to contact the door seal to oven front surface.
• Tighten a screw.
2) To reduce gap located on part ‘B’.
• Loosen two screws on stopper hinge under, and then push
the door to contact the door seal to oven front surface.
• Tighten two screws.

A

B

NOTE : A small gap may be acceptable if the microwave leakage does not exceed 4mW/cm2.

32

✔ 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)

5. To remove control panel parts.

(1) KOG-371G0S/371H0S
REF. NO
B01

PART CODE
3518521610
3518521600

PART NAME

DESCRIPTION
KOG-371G0S

SWITCH MEMBRANE

KOG-371H0S

QTY

REMARK

1

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

SPRING BUTTON

SWP DIA0.7

1

B07

3516906900

BUTTON DOOR OPEN

ABS XR-401 H2938

1

PART NAME

DESCRIPTION

(2) KOG-391G0S/391H0S
REF. NO
B01

PART CODE
3518521700
3518521710

KOG-391G0S

SWITCH MEMBRANE

KOG-391H0S

QTY
1

B02

3516720200

CONTROL-PANEL

ABS XR-401 H-2938

1

B03

3514321000

PCB MAIN AS

KOG-391G0S

1

B04

7122401211

SCREW TAPPING

T2S TRS 4X12 MFZN

3

B05

3513702700

LEVER DOOR OPEN

ABS XR-401 H-2938

1

B06

441G430171

SPRING BUTTON

SWP DIA0.7

1

B07

3516906900

BUTTON DOOR OPEN

ABS XR-401 H2938

1

33

REMARK

✔ 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)

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 panel.
6) Remove door open button and button spring from the control panel.
7) Reverse the above steps for reassembly.

(3) KOG-376T1S
REF. NO
B01
B02
B03
B04
B05
B06
B07
B08
B09
B10
B11
B12
B13

PART CODE
3516719440
3515501510
3511603900
3516907410
3516907510
3516907610
3517401700
3513405530
3513405220
3514321410
7621301011
3514321320
7122401211

PART NAME
CONTROL-PANEL
WINDOW DISPLAY
DECORATOR C-PANEL
BUTTON FUNCTION
BUTTON FUNCTION
BUTTON START
COUPLER VPC KNOB
KNOB VPC
KNOB VOLUME
PCB SUB AS
SCREW TAPPING
PCB MAIN AS
SCREW TAPPING

DESCRIPTION
QTY
ABS
1
PMMA
1
ABS
1
ABS
1
ABS
1
ABS
1
POM
1
ABS
1
ABS
1
KOR-636T1S
1
T2 PAN 3*10 PW MFZN
6
KOG-376T1S
1
T2S TRS 4*12 MFZN
3

REMARK

PART NAME
CONTROL-PANEL
WINDOW DISPLAY
DECORATOR C-PANEL
BUTTON FUNCTION
BUTTON FUNCTION
BUTTON START
COUPLER VPC KNOB
KNOB VPC
KNOB VOLUME
PCB SUB AS
SCREW TAPPING
PCB MAIN AS
SCREW TAPPING

DESCRIPTION
QTY
ABS
1
PMMA
1
ABS
1
ABS
1
ABS
1
ABS
1
POM
1
ABS
1
ABS
1
KOR-636T1S
1
T2 PAN 3*10 PW MFZN
6
KOG-396T1S
1
T2S TRS 4*12 MFZN
3

REMARK

(4) KOG-396T1S
REF. NO
B01
B02
B03
B04
B05
B06
B07
B08
B09
B10
B11
B12
B13

PART CODE
3516720240
3515501510
3511604100
3516907410
3516907510
3516907610
3517401700
3513405530
3513405220
3514321410
7621301011
3514321520
7122401211

34

✔ 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)

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 panel.
6) Remove door open button and button spring from the control panel.
7) Reverse the above steps for reassembly.

(5) KOG-371R0S
REF. NO
B01
B02
B03
B04
B05
B06
B07
B08
B09
B10
B11
B12
B13

PART CODE
3515501500
3516719420
3516907400
3516907600
3514321400
3514321330
7122401211
7621301011
3513405210
3516907500
3513702700
441G430171
3516906900

PART NAME
WINDOW DISPLAY
CONTROL PANEL
BUTTON FUNCTION
BUTTON FUNCTION
PCB SUB AS
PCB MAIN AS
SCREW TAPPING
SCREW TAPPING
KNOB VOLUME
BUTTON FUNCTION
LEVER DOOR OPEN
SPRING BUTTON
BUTTON DOOR OPEN

DESCRIPTION
PMMA
ABS XR-401 H-2938
ABS
ABS
KOR-631R0S
KOG-371R0S
T2S TRS 4X12 MFZN
T2 PAN 4X12 MFZN
ABS
ABS
ABS
SWP DIA 0.7
ABS

QTY
1
1
1
1
1
1
3
4
1
1
1
1
1

REMARK

PART NAME
WINDOW DISPLAY
CONTROL PANEL
BUTTON FUNCTION
BUTTON FUNCTION
PCB SUB AS
PCB MAIN AS
SCREW TAPPING
SCREW TAPPING
KNOB VOLUME
BUTTON FUNCTION
LEVER DOOR OPEN
SPRING BUTTON
BUTTON DOOR OPEN

DESCRIPTION
QTY
PMMA
1
ABS
1
ABS
1
ABS
1
KOR-631R0S
1
KOG-391R0S
1
T2S TRS 4X12 MFZN
3
T2 PAN 3X10 PW MFZN 4
ABS
1
ABS
1
ABS
1
SWP DIA 0.7
1
ABS
1

REMARK

(6) KOG-391R0S
REF. NO
B01
B02
B03
B04
B05
B06
B07
B08
B09
B10
B11
B12
B13

PART CODE
3515501500
3516720220
3516907400
3516907600
3514321400
3514321530
7122401211
7621301011
3513405210
3516907500
3513702700
441G430171
3516906900

35

✔ 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) KOG-374R0S

REF NO.

PART CODE

B01

3513404620

KNOB VOLUME

PART NAME

ABS XR-401, H-2938

DESCRIPTION

Q’TY
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

B07

PKBPMSZY00

SUB PCB AS

KOR-634R0S

1

SCREW TAPPING

T2S PAN 4X16 MFZN

3

MAIN PCB AS

KOR-374R0S

1

B08

7121401611

B09

PKMPMSZ100

B10

7621301011

SCREW TAPPING

T2S TRS 4X12 MFZN

8

B11

3516906320

BUTTON FUNCTION

ABS XR-401, COATING

2

36

REMARK

✔ 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)

(8) KOG-375R0S

REF NO.

PART CODE

B01

3513403800

KNOB VOLUME

PART NAME

ABS XR-401, H-2938

DESCRIPTION

Q’TY
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

PKBPMSZY00

SUB PCB AS

KOR-634R0S

1

SCREW TAPPING

T2S PAN 4X16 MFZN

3

MAIN PCB AS

KOR-374R0S

1

B08

7121401611

B09

PKMPMSZ100

B10

7621301011

SCREW TAPPING

T2S TRS 4X12 MFZN

8

B11

3516904600

BUTTON FUNCTION

ABS XR-401

2

37

REMARK

✔ 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)

(9) KOG-373R0S
REF. NO
B01
B02
B03
B04
B05
B06
B07
B08
B09

PART CODE
3515501540
3516723730
3516907530
3516907540
3513405240
PKBPMSZ300
7621301011
PKMPMSZ600
7122401211

PART NAME
WINDOW DISPLAY
CONTROL PANEL
BUTTON FUCTION *A
BUTTON FUCTION *B
KNOB VOLUME
PCB SUB AS
SCREW TAPPING
PCB MAIN AS
SCREW TAPPING

DESCRIPTION
PMMA
ABS SG-175
ABS SG-175
ABS SG-175
ABS
KOG-373R0S
T2 PAN 2X10 PW MFZN
KOG-373R0S
T2S TRS 4X12 MFZN

QTY
1
1
1
1
1
1
4
1
3

REMARK

PART NAME
WINDOW DISPLAY
CONTROL PANEL
BUTTON FUCTION *A
BUTTON FUCTION *B
KNOB VOLUME
PCB SUB AS
SCREW TAPPING
PCB MAIN AS
SCREW TAPPING

DESCRIPTION
PMMA
ABS SG-175
ABS SG-175
ABS SG-175
ABS SG-175
KOG-373R0S
T2 PAN 2X10 PW MFZN
KOG-393R0S
T2S TRS 4X12 MFZN

QTY
1
1
1
1
1
1
4
1
3

REMARK

(10) KOG-393R0S
REF. NO
B01
B02
B03
B04
B05
B06
B07
B08
B09

PART CODE
3515501540
3516723730
3516907530
3516907540
3513405240
PKBPMSZ300
7621301011
PKMPMST500
7122401211

38

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 panel.
6) Remove door open button and button spring from the control panel.
7) Reverse the above steps for reassembly.

6. To remove high voltage capacitor.
1) Remove a screw which secure the grounding ring
terminal of the H.V.diode and the capacitor holder.
2) Remove the H.V.diode from the capacitor holder.
3) Reverse the above steps for reassembly.

• High voltage circuit wiring

7. To remove magnetron.
1) Remove a screw which secure the magnetron.
2) Remove the magnetron.
3) Reverse the above steps for reassembly.

NOTE : Never install the magnetron without the metallic gasket plate which is packed with each magnetron to
prevent microwave leakage. Whenever repair work is carried out on magnetron, check the microwave
leakage. It shall not exceed 4mW/cm2 for a fully assembled oven with door normally closed.

39

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) Reverse the above steps for reassembly.

9. To remove H.V.transformer.
1) Remove four screws holding the H.V.transformer.
2) Remove the H.V.transformer.
3) Reverse the above steps for reassembly.

40

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 screw.

11. To remove heater assmbly.
(1) Remove the three nuts.
(2) Remove the insulator heater assembly.
(3) Reverse the above steps for reassembly.

41

✔ 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)

12. To remove heater parts.

REF. NO

PART CODE

PART NAME

DESCRIPTION

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

42

QTY

REMARK

INTERLOCK MECHANISM AND ADJUSTMENT
The door lock mechanism is a device which has been specially designed to completely eliminate microwave radiation
when the door is opened during operation, and thus to perfectly prevent the danger resulting from the leakage of
microwave.

(1) Primary interlock switch
When the door is closed, the hook locks the oven door. If the door is not closed properly, the oven will not operate.
When the door is closed, the hook pushes the button of the microswitch. Then the button of the primary interlock switch
bring it under ON condition.
(2) Secondary interlock switch and interlock monitor switch
When the door is closed, the hook pushes the lock lever downward. The lock lever presses the button of the interlock
minitor switch to bring it under NO condition and presses the button of the secondary interlock switch to bring it under
ON condition.
ADJUSTMENT :
Interlock monitor switch
When the door is closed, the interlock monitor switch should be changed(NO condition) before other switches
are closed.
When the door is opened, the interlock monitor switch should be changed(NC condition) after other switches are
opened.
(3) Adjustment steps
a) Loosen the one mounting screw.
b) Adjust interlock switch assmbly position.
c) Make sure that lock lever moves smoothly after adjustment is completed.
d) Tighten completely one mounting screw.

NOTE : Microwave emission test should be performed after adjusting interlock mechanism. If the microwave
emission exceed 4 mW/cm2, readjust interlock mechanism.

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) KOG-374R/375R0S

(1) Primary interlock switch
When the door is closed, the hook locks the oven door. If the door is not closed properly, the oven will not operate.
When the door is closed, the hook pushes the button of the microswitch. Then the button of the primary interlock switch
bring it under ON condition.
(2) Secondary interlock switch and interlock monitor switch
When the door is closed, the hook pushes the lock lever downward. The lock lever presses the button of the interlock
minitor switch to bring it under NO condition and presses the button of the secondary interlock switch to bring it under

ADJUSTMENT :
Interlock monitor switch
When the door is closed, the interlock monitor switch should be changed(NO condition) before other switches
are closed.
When the door is opened, the interlock monitor switch should be changed(NC condition) after other switches are
opened.

ON condition.
(3) Adjustment steps
a) Loosen the one mounting screw.
b) Adjust interlock switch assmbly position.

NOTE : Microwave emission test should be performed after adjusting interlock mechanism. If the microwave
emission exceed 4 mW/cm2, readjust interlock mechanism.

44

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. To do otherwise may result in a false reading or damage to
your meter.

NOTE : When electric parts are checked, be sure the power cord is not inserted the wall outlet.
Check wire harness, wiring and connected of the terminals and power cord before check the parts listed below.

(TROUBLE 1) Oven does not operate at all : any inputs can not be accepted.

CONDITION

CHECK

Fuse blows.

Check continuty of interlock
monitor switch with door closed
(COM ↔ NC)

RESULT

Continuity

CAUSE
Malfunction of
interlock
monitor switch

REMEDY
Replace
NOTE 1

No Continuity

Check continuity of both
primary and secondary
interlock switch with door
colosed

No Continuity
Continuity

Continuity

Check continuity of primary
interlock switch contact with door
partially open until interlock
monitor switch contact close
(COM ↔ NC)

Check continuity of primary
winding of low voltage
transformer

0Ω or infinite
Approx.
150~310
(normal)

Fuse again
blows

Disconnect high voltage fuse
and operate the unit

45

Replace
Malfunction of
interlock switch

Shorted contacts
of primary
interlock switch.

Defective low
voltage
transformer

Defective high
voltage
transformer

NOTE 1

Replace
NOTE 1

Replace

Replace

TROUBLE SHOOTING GUIDE

CONDITION
Outlet has
proper
voltage Fuse
does not
blow.

CHECK

RESULT

CAUSE

REMEDY

No
Continuity

Defective
magnetron

Replace

Check continuity of magnetron

Check continuity of
noise filter board

No
Continuity

Defective line
filter board

Replace

Check continuity of
power supply cord

No
Continuity

Open power
supply cord

Replace

Normal

Defective touch
control circuit

Replace

NOTE
All these switches must be replaced at the same time, please refer to “Interlock Mechanism And Adjustment”.

(TROUBLE 2) Display shows all figures selected, but oven does not start cooking, even though desired program and
time are set and start pad is tapped.

CONDITION

CHECK

RESULT

CAUSE

REMEDY

Turn table
motor and
oven lamp
do not turn
on

Check continuity of primary
interlock switch

No
Continuity

Malfunction of
primary interlock
switch

Adjust or
replace

Check continuity of secondary
interlock and D.O.M. switches

No
Continuity

Malfunction of
primary interlock
and D.O.M.
switch

Adjust or
replace

Check D.C. voltage being
supplied to RELAY (RY2) coil

0V

Defective touch
control circuit

Replace

Approx.
15 VDC

Faulty contacts of
RELAY (RY2) or
open relay coil

46

Replace

(TROUBLE 3) No microwave oscillation even though fan motor rotates.

CONDITION

CHECK

RESULT

No
microwave
oscillation

Check continuity of high
voltage fuse

No
Continuity

CAUSE

REMEDY

Replace high voltage fuse
Check continuity if high
voltage capacitor terminals
with wires removed

Continuity

Defective high
voltage
transformer

Replace

Check continuity of high voltage
rectifier in forward and backward
direction with DC megger

Continuity in
backward
direction

Defective high
voltage rectifier

Replace

Connect megger leads to
magnetron terminal and
magnetron body

Continuity

Defective
magnetron

Replace

Defective high
voltage
transformer

Replace

0 Ω or ∞

Check resistance of primary and
secondary coil of high voltage
transformer

No
Continuity

Check continuity of magnetron
with wires removed

No
Continuity

Check continuity of filament
terminal of high voltage
transformer

Defective
magnetron

Defective high
voltage
transformer

0V
Check D.C. voltage being
supplied to RELAY (RY1) coil

Defective touch
control circuit

Approx
15 VDC

47

Faulty
contacts or
RELAY (RY1)
or open
relay coil

Replace

Replace

Replace

Replace

(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 change in the display are not on when they numbers is
the display.
3. One or more digits in the display are not on when they should be.
4. Display indicates a number different from one touched.
5. Specific numbers (for example 2 or 3) will not display when the panel is touched.
6. Display does not count down or up with time cooking or clock operation.
7. Oven is programmable and cooks normally but no display shows.
8. Display obviously jumps in time while counting down.
9. Display counts down noticeable too fast while cooking.
10. Display does not show the time of day when dlear pad is touched.
11. Oven lamp and turntable motor do not stop although cooking is finished. Check if the RELAY 2 contacts close if they
are close, replace touch control circuit.

CONDITION

CHECK

Display does
not show
programming
at all, even if
keyboard is
touched.

Check rach pad for
continuity of the membrane
keyboard for the following
keyboard check procedure

RESULT
Normal

Abnormal

CAUSE

REMEDY

Malfunction
of touch
control circuit
of control box
sub-assembly

Replace
control box
sub-assembly

Malfunction
of the membrane
keyboard

Replace the
membrane
keyboard

NOTE (KOG-371G/H, KOG-391G/H)
Before following the particular steps listed above in the trouble shooting guide for the membrane keyboard's,
failure, please check for the continuity of each wire-harness between the membrane keyboard and P.C.B.
assembly.

48

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 ± 5cc of potable water.
2. The water is contained in a cylindrical borosilicate glass vessel having a maximum material thickness of 3 mm and
an outside diameter of approximately 190 mm.
3. The oven and the empty vessel are at ambient temperature prior to the start of the test. The initial temperature of
the water is 10 ± 2°C (50 ± 3.6°F). If is measured immediately before the water is added to the vessel. After
addition of the water to the vessel, the load is immediately placed on the center of the shelf, which is in the lowest
normal position.
4. Microwave power is switched on.
5. Heating time should be exactly A seconds.
(Refer to table as following)
Heating time is measured while the microwave
generator is operating at full power. The filament heatup time for magnetron is not included.
6. The initial and final temperature of water is selected so
that the maximum difference between the ambient and
final water temperature is 5K.
7. The microwave power output P in watts is calculated
from the following formula:
P = 4187 X ∆ T/t
• ∆ T is difference between initial and ending temperature.
• t is the heating time.
The power measured be B (Refer to SPECIFICATIONS) W ± 10.0 %.

CAUTION
1. Water load should be measured exactly to 1 liters.
2. Input power voltage should be exactly specified voltage (Refer to SPECIFICATIONS).
3. Ambient temperature should be 20 ± 2°C (68 ± 3.6°F)

✻ Heating time for power output:
A (second)

70

64

60

56

52

49

47

44

42

40

38

B (W)

600

650

700

750

800

850

900

950

1000

1050

1100

49

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. Care should be taken not to place the eyes in direct line with the source of microwave energy.
5. Slowly approach the unit under test until the radiometer reads an appreciable microwave leakage from the
unit under the 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 cavity.
4. Close the door and operate the oven.
5. Measure the leakage by using Microwave Energy Survey Meter
with dual ranges, set to 2450MHz.
1) Measured radiation leakage must not exceed the value
prescribed below. Leakage for a fully assembled oven with
door normally closed must be less than 4mW/cm2.
2) When measuring the leakage, always use the 5 cm (2 in.)
space cone with probe. Hold the probe perpendicular to the
cabinet and door. Place the space cone of the probe on the
door, cabinet, door seem, door viewing screen, the exhaust air vents and the suction air vents.
3) Measuring should be in a counter-clockwise direction at a rate of 1 in./sec. If the leakage of the cabinet door
seem is unknown, move the probe more slowly.
4) When measuring near a corner of the door, keep the probe perpendicular to the areas making sure the probe
end at the base of the cone does not get closer than 2 in. from any metal. If it does not, erroneous reading may
result.

50

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.
1. High voltage transformer
1) Remove connections from the transformer terminals and check continuity.
2) Normal readings should be as follows :
Secondary winding ... Approx. 110 Ω±10%
Filament winding ... Approx. 0 Ω
Primary winding ... Approx. 1 Ω
2. High voltage capacitor
1) Check continuity of capacitor with meter on the highest OHM scale.
2) A normal capacitor will show continuity for a short time, and then indicate 10MΩ once the capacitor charged.
3) A shorted capacitor will show continuous continuity.
4) An open capacitor will show constant 10MΩ.
5) Resistance between each terminal and chassis should be infinite.
3. High voltage diode
1) Isolate the diode from the circuit by disconnecting the leads.
2) With the ohmmeter set on the highest resistance scale measure the resistance across the diode terminals.
Reverse the meter leads and again observe the resistance reading. Meter with 6V, 9V or higher voltage batteries
should be used to check the front-back resistance of the diode, otherwise an infinite resistance may be read in
both directions. A normal diode's resistance will be infinite in one direction and several hundred k Ω in the other
direction.
4. Magnetron
For complete magnetron diagnosis, refer to "Measurement of the Microwave Power Output." Continuity checks can
only indicate and open filament or a shorted magnetron. To diagnose for an open filament or a shorted magnetron,
1) Isolate magnetron from the circuit by disconnecting the leads.
2) A continuity check across magnetron filament terminals should indicate 0.1 Ω or less.
3) A continuity check between each filament terminal and magnetron case should read open.
5. Fuse
If the fuse in the primary and monitor switch circuit is blown when the door is opened, check the primary and
monitor switch before replacing the blown fuse. In case the fuse is blown by an improper switch operation, replace
the defective switch and fuse at the same time. Replace just the fuse if the switches operate normally.

51

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

52

(2) KOG-396T1S

53

PRINTED CIRCUIT BOARD 
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

4-7

AC 25.8 V

AC 28.4 V

NOTE
1. Refer to Ciruit Diagram (point 4).
2. Secondary side voltage of the low voltage transformer changes in proportion to fluctuation of power source
voltage.
3. The allowable tolerance of the secondary voltage is within ± 5% of nominal voltage.

2. Voltage Check
- Key check point
NO

CHECK POINT

1

IC1 PIN 2, 21, 30, 34

2

IC1 PIN 35

REMARK
-5VDC

T : 20ms(50Hz)
3

IC1 PIN 31 OR 32

T : 250 ns(4MHz)

- Check method
NO

MEASURE POINT

WAVE FORM

REMEDY

REMARK

1

MP1

DC -5V±0.25V

Replace VL1, EC1

NO LOAD

2

MP2

DC -12V±2.0V

Replace EC2, D12,13,14

NO LOAD

NOTE
Each measure point must be measured with GND points.

54

Mesurement point

55

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

A

B

RELAY 2 ON

-5VDC

GND

RELAY 2 OFF

GND

-12VDC

STATE

2) When touching START pad, oven lamp turns on.
Fan motor and turntable rotate and cook indicator in display comes on.
✻ Cause : RELAY 1 does not operate. → refer to Circuit Diagram (point 2)
- Check method
POINT

A

B

RELAY 1 ON

-5VDC

GND

RELAY 1 OFF

GND

-12VDC

STATE

4. When there is no grill oscillation.
✻ Cause : RELAY 3 does not operate. → refer to Circuit Diagram (point 6)
- Check method
POINT

A

B

RELAY 3 ON

-5VDC

GND

RELAY 3 OFF

GND

-12VDC

STATE

5. When the door is opened during operation, the count down timer does not stop.
→ refer to Circuit Diagram (point 1)
- Check method
POINT

A

B

1) DOOR OPEN

OPEN

-5VDC

2) DOOR CLOSED

CLOSE

GND

STATE

CHECK NO
1

HETHOD

REMEDY

Check the stage(ON, OFF) of the door open monitor
switch by resistance measurement.

Replace door open monitor switch.

6. When the digital clock does not operate properly.
→ refer to Circuit Diagram (point 5)
POINT
A

WAVE FORM

T: 20 ms(50Hz)

❈ If clock does not keep exact time, you must check resistor R15,16, zener diode ZD1.

56

2. P.C.B. CIRCUIT DIAGRAM

57

✔ 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)

3. P.C.B. LOCATION NO
(1) KOG-371G0S/371H0S
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

3519150510

1

8

DIODE RECTIFY

D1~6, 8~12

1N4148

DZN4148---

11

9

DIODE RECTIFY

D13, 14

1N4002A

DZN4002A--

2

10

DIODE ZENER

ZD1

UZ-5.1BSB

DZUZ5R1BSB

1

11

DIODE ZENER

ZD2

UZ-3.9BSB

DZUZ3R9BSB

1

12

LED DISPLAY

DP1

DDG-631H

DDDG631H01

1

13

PCB MAIN

M158

81.5X139.9

3514315410

1

14

R ARRAY

RA1

7P(6) 1/8 100K J

RA-87X104J

1

15

RESISTOR

R1~R7

1/6W 330 5%

RD-AZ331J-

7

16

RESISTOR

R8, 10, 12, 14, 22

1/6W 1K 5%

RD-AZ102J-

5

17

RESISTOR

R11, 20, 21

1/6W 100K 5%

RD-AZ104J-

3

18

RESISTOR

R13

1/6W 200 5%

RD-AZ201J-

1

19

RESISTOR

R15, 16

1/6 10K 5%

RD-AZ103J-

2

20

RESISTOR

R17

1/6 510 OHM J

RD-AZ511J-

1

21

RESISTOR

R18

1/6W 1M 5%

RD-AZ105J-

1

22

RESISTOR

R19

1/4W 51 5%

RD-4Z510J-

1

23

RESISTOR

R23

1/6 4.7K OHM J

RD-AZ472J-

1

24

REGULATOR

VL1

MC7905C

1MC7905C--

1

25

TRANSISTOR

Q1~5, 8~11

KRA-102M

TZRA102M--

9

26

TRANSISTOR

Q6

KTA-1266Y

TZTA1266Y-

1

27

TRANS POWER

LVT1

DMR-631FS

5EPV035303

1

28

WIRE COPPER

J1~3,5~8,10~12,17~21

1/0.52 TIN COATING

85801052GY

15

29

WIRE COPPER

SJ4

1/0.52 TIN COATING

85801052GY

1

30

IC MICOM

IC1

TMP47C440BN-NF94

13GS371GH0

1

31

RESONATOR CERA

CR1

KBR-4.0MKSTF

5PKBR40MKS

1

32

SW RELAY

RY1, RY3

G5G-1A DC 12V

5SC0101121

2

33

SW RELAY

RY2

G5B-1 DC12V

5SC0101110

1

34

CAPACITOR CERA

C6

102 50V Z AXIAL

CCZB1H102K

1

35

CAPACITOR CERA

C1~5, C7

104 50V Z AXIAL

CCZF1H104Z

6

58

✔ 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)

(2) KOG-391G0S/391H0S
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

3519150510

1

8

DIODE RECTIFY

D1~6, 8~12

1N4148

DZN4148---

11

9

DIODE RECTIFY

D13, 14

1N4002A

DZN4002A--

2

10

DIODE ZENER

ZD1

UZ-5.1BSB

DZUZ5R1BSB

1

11

DIODE ZENER

ZD2

UZ-3.9BSB

DZUZ3R9BSB

1

12

LED DISPLAY

DP1

DDG-631H

DDDG631H01

1

13

PCB MAIN

M158

81.5X139.9

3514315410

1

14

R ARRAY

RA1

7P(6) 1/8 100K J

RA-87X104J

1

15

RESISTOR

R1~R7

1/6W 330 5%

RD-AZ331J-

7

16

RESISTOR

R8, 10, 12, 14, 22

1/6W 1K 5%

RD-AZ102J-

5

17

RESISTOR

R11, 20, 21

1/6W 100K 5%

RD-AZ104J-

3

18

RESISTOR

R13

1/6W 200 5%

RD-AZ201J-

1

19

RESISTOR

R15, 16

1/6W 10K 5%

RD-AZ103J-

2

20

RESISTOR

R17

1/6 510 OHM J

RD-AZ511J-

1

21

RESISTOR

R18

1/6W 1M 5%

RD-AZ105J-

1

22

RESISTOR

R19

1/4W 51 5%

RD-4Z510J-

1

23

RESISTOR

R23

1/6 4.7K OHM J

RD-AZ472J-

1

24

REGULATOR

VL1

MC7905C

1MC7905C--

1

25

TRANSISTOR

Q1~5, 8~11

KRA-102M

TZRA102M--

9

26

TRANSISTOR

Q6

KTA-1266Y

TZTA1266Y-

1

27

TRANS POWER

LVT1

DMR-631FS

5EPV035303

1

28

WIRE COPPER

J1~3,5~8,10~12,17~21

1/0.52 TIN COATING

85801052GY

15

29

WIRE COPPER

SJ1, SJ4

1/0.52 TIN COATING

85801052GY

2

30

IC MICOM

IC1

TMP47C440BN-NF94

13GS371GH0

1

31

RESONATOR CERA

CR1

KBR-4.0MKSTF

5PKBR40MKS

1

32

SW RELAY

RY1, RY3

G5G-1A DC 12V

5SC0101121

2

33

SW RELAY

RY2

G5B-1 DC12V

5SC0101110

1

34

CAPACITOR CERA

C6

102 50V Z AXIAL

CCZB1H102K

1

35

CAPACITOR CERA

C1~5, C7

104 50V Z AXIAL

CCZF1H104Z

6

59

PRINTED CIRCUIT BOARD 
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

AC 2.27V

AC 2.79V

NOTE
1. Refer to Circuit Diagram (point 4).
2. Secondary side voltage of the low voltage trasformer changes in proportion to fluctuation of power source
voltage.
3. The allowable tolerance of the secondary voltage is within 5% of nominal voltage.

2. Voltage Check
- Key check point
NO

CHECK POINT

1

IC1 PIN 6, 10, 11

2

IC1 PIN 22

REMARK
-5VDC

T : 20ms(50Hz)
3

IC1 PIN 8 OR 9

T : 250 ns(4MHz)

- Check method
NO

MEASURE POINT

WAVE FORM

REMEDY

REMARK

1

MP1

DC -5V±0.25V

Replace VL1, EC1

NO LOAD

2

MP2

DC -24V±2.0V

Replace EC3, D8-11

NO LOAD

NOTE
Each measure point must be measured with GND points.

60

Mesurement point

61

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

A

B

RELAY 2 ON

-5VDC

GND

RELAY 2 OFF

GND

-24VDC

STATE

2) When touching START pad, oven lamp turns on.
Fan motor and turntable rotate and cook indicator in display comes on.
✻ Cause : RELAY 1 does not operate. → refer to Circuit Diagram (point 2)
- Check method
POINT

A

B

RELAY 1 ON

-5VDC

GND

RELAY 1 OFF

GND

-24VDC

STATE

4. When there is no grill oscillation.
✻ Cause : RELAY 3 does not operate. → refer to Circuit Diagram (point 6)
- Check method
POINT

A

B

RELAY 3 ON

-5VDC

GND

RELAY 3 OFF

GND

-24VDC

STATE

5. When the door is opened during operation, the count down timer does not stop.
→ refer to Circuit Diagram (point 1)
- Check method
POINT

A

B

1) DOOR OPEN

OPEN

-5VDC

2) DOOR CLOSED

CLOSE

GND

STATE

CHECK NO
1

HETHOD

REMEDY

Check the stage(ON, OFF) of the door open monitor
switch by resistance measurement.

6. When the digital clock does not operate properly.
→ refer to Circuit Diagram (point 5)
POINT
A

WAVE FORM

T: 20 ms(50Hz)

❈ If clock does not keep exact time, you must check resistor R7,8,C5.

62

Replace door open monitor switch.

2. P.C.B. CIRCUIT DIAGRAM

63

✔ 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)

3. P.C.B. LOCATION NO
(1) KOG-376T1S
NO
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47

NAME
BUZZER
C ARRAY
CAPACITOR ELEC
CAPACITOR ELEC
CONNECTOR WAFER
CONNECTOR WAFER
CONNECTOR WAFER
DIODE SWITCH
DIODE RECTIFY
DIODE ZENER
DIODE ZENER
VFD DISPLAY
VFD HOLDER
R ARRAY
RESISTOR
RESISTOR
RESISTOR
RESISTOR
RESISTOR
RESISTOR
RESISTOR
RESISTOR
RESISTOR
RESISTOR
REGULATOR
WIRE COPPER
CAPACITOR CERA
CAPACITOR CERA
WIRE COPPER
CAPACITOR CERA
CAPACITOR CERA
CAPACITOR CERA
SW RELAY
SW RELAY
IC MICOM
PCB MAIN
LED
WIRE FLAT
SW TACT
SW ROTARY
VR ROTARY
CONNECTOR WAFER
RESISTOR
RESISTOR
CAPACITOR CERA
WIRE COPPER
PCB SUB

SYMBOL
BZ1
CA1
EC1, 2
EC3
CN1
CN2
CN3
D1~4
D5~11
ZD1
ZD2
DP1
RA1
R12
R2, 6, 9, 18
R7, 8
R3, 10, 11
R1, 4
R5
R13
R15, 16, 17
R19
R15
VL1
Q2~5
Q1
LVT1
J1-J16, SJ3
C1~4, C6
C5
CR1
RY1, 3
RY2
IC1
M163
LED101
WF1
SW102~105
SW101
VR101
CN101
R101, 102
R103
C101
J101~103
M164

SPECIFICATION
BM-20K
5P(6) 102 M 50V
50V RSS 10µF
50V RSS 470µF
YW396-02AV
HLEM15S-1
YW396-05AV
1N4148
1N4004A
MTZ 3.9VB 1/2W
MTZ 20VB 1/2W
SVM-5MS06
PP(BLACK)
5P(4) 1/8 100K J
1/6W 1.2K 5%
1/6W 1K 5%
1/6W 47K 5%
1/6W 100 5%
1/6W 10K 5%
1/6W 1M 5%
1/2W 56 5%
1/2W 200 5%
1/2W 1.2K 5%
1/2W 2K 5%
MC7905C
KRA-106M
KTA-1270Y
DMR-814FS
1/0.52 TIN COATING
104 50V Z AXIAL
473 50V Z AXIAL
KBR-4.0MSTF
G5G-1A DC24V
OJ-SS 124LM
HD404318E08S
M163
DLSR-302D(5.5)
1.25X15X90CWH
KPT-1115AM
SDB161PVB17F 123636
RP09PV
HLEM15R-`
1/6W 1K 5%
1/4W 1K 5%
104 50V Z AXIAL
1/0.52 TIN COATING
M164

64

PART CODE
3615600100
CN4XB-102M
CEXE1H100A
CEXE1H471V
3519150520
4CW215SBD0
3519150510
DZN4148--DZN4004A-DZUZ3R9BSB
DZUZ20BSBDSVM5MS063513002600
RA-85X104J
RD-AZ122JRD-AZ102JRD-AZ473JRD-AZ101JRD-AZ103JRD-AZ105JRD-2Z560JS
RD-2Z201JS
RD-2Z122JS
RD-2Z202JS
1MC7905C-TZRA106M-TZTA1270Y3EPV035301
85801052GY
CCZF1H104Z
CCZF1H473Z
5PKBR40MKS
5SC0101122
5SC0101405
147S636T00
3514321120
DDLSR302D1
WSJ-159007
5S50101Z93
5S10109002
5V1104103B
4CW215RBD0
RD-AZ102JRD-AZ102JCCZF1H104Z
85801052GY
3514321210

Q’TY REMARK
1
MAIN
1
“
2
“
1
“
1
“
1
“
1
“
4
“
7
“
1
“
1
“
1
“
1
“
1
“
1
“
4
“
2
“
3
“
2
“
1
“
1
“
3
“
1
“
1
“
1
“
4
“
1
“
1
“
17
“
5
“
1
“
1
“
2
“
1
“
1
“
1
“
1
SUB
1
“
4
“
1
“
1
“
1
“
2
“
1
“
1
“
3
“
1
“

✔ 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)

(2) KOG-396T1S
NO
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47

NAME
BUZZER
C ARRAY
CAPACITOR ELEC
CAPACITOR ELEC
CONNECTOR WAFER
CONNECTOR WAFER
CONNECTOR WAFER
DIODE SWITCH
DIODE RECTIFY
DIODE ZENER
DIODE ZENER
VFD DISPLAY
VFD HOLDER
R ARRAY
RESISTOR
RESISTOR
RESISTOR
RESISTOR
RESISTOR
RESISTOR
RESISTOR
RESISTOR
RESISTOR
RESISTOR
REGULATOR
WIRE COPPER
CAPACITOR CERA
CAPACITOR CERA
WIRE COPPER
CAPACITOR CERA
CAPACITOR CERA
CAPACITOR CERA
SW RELAY
SW RELAY
IC MICOM
PCB MAIN
LED
WIRE FLAT
SW TACT
SW ROTARY
VR ROTARY
CONNECTOR WAFER
RESISTOR
RESISTOR
CAPACITOR CERA
WIRE COPPER
PCB SUB

SYMBOL
BZ1
CA1
EC1, 2
EC3
CN1
CN2
CN3
D1~4
D5~11
ZD1
ZD2
DP1
RA1
R12
R2, 6, 9, 18
R7, 8
R3, 10, 11
R1, 4
R5
R13
R15, 16, 17
R19
R15
VL1
Q2~5
Q1
LVT1
J1-J16, SJ3
C1~4, C6
C5
CR1
RY1, 3
RY2
IC1
M163
LED101
WF1
SW102~105
SW101
VR101
CN101
R101, 102
R103
C101
J101~103
M164

SPECIFICATION
BM-20K
5P(6) 102 M 50V
50V RSS 10µF
50V RSS 470µF
YW396-02AV
HLEM15S-1
YW396-05AV
1N4148
1N4004A
MTZ 3.9VB 1/2W
MTZ 20VB 1/2W
SVM-5MS06
PP(BLACK)
5P(4) 1/8 100K J
1/6W 1.2K 5%
1/6W 1K 5%
1/6W 47K 5%
1/6W 100 5%
1/6W 10K 5%
1/6W 1M 5%
1/2W 56 5%
1/2W 200 5%
1/2W 1.2K 5%
1/2W 2K 5%
MC7905C
KRA-106M
KTA-1270Y
DMR-814FS
1/0.52 TIN COATING
104 50V Z AXIAL
473 50V Z AXIAL
KBR-4.0MSTF
G5G-1A DC24V
OJ-SS 124LM
HD404318E08S
M163
DLSR-302D(5.5)
1.25X15X90CWH
KPT-1115AM
SDB161PVB17F 123636
RP09PV
HLEM15R-`
1/6W 1K 5%
1/4W 1K 5%
104 50V Z AXIAL
1/0.52 TIN COATING
M164

65

PART CODE
3615600100
CN4XB-102M
CEXE1H100A
CEXE1H471V
3519150520
4CW215SBD0
3519150510
DZN4148--DZN4004A-DZUZ3R9BSB
DZUZ20BSBDSVM5MS063513002600
RA-85X104J
RD-AZ122JRD-AZ102JRD-AZ473JRD-AZ101JRD-AZ103JRD-AZ105JRD-2Z560JS
RD-2Z201JS
RD-2Z122JS
RD-2Z202JS
1MC7905C-TZRA106M-TZTA1270Y3EPV035301
85801052GY
CCZF1H104Z
CCZF1H473Z
5PKBR40MKS
5SC0101122
5SC0101405
147S636T00
3514321120
DDLSR302D1
WSJ-159007
5S50101Z93
5S10109002
5V1104103B
4CW215RBD0
RD-AZ102JRD-AZ102JCCZF1H104Z
85801052GY
3514321210

Q’TY REMARK
1
MAIN
1
“
2
“
1
“
1
“
1
“
1
“
4
“
7
“
1
“
1
“
1
“
1
“
1
“
1
“
4
“
2
“
3
“
2
“
1
“
1
“
3
“
1
“
1
“
1
“
4
“
1
“
1
“
17
“
5
“
1
“
1
“
2
“
1
“
1
“
1
“
1
SUB
1
“
4
“
1
“
1
“
1
“
2
“
1
“
1
“
3
“
1
“

PRINTED CIRCUIT BOARD 
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

4-7

AC 25.8 V

AC 28.4 V

NOTE
1. Refer to Ciruit Diagram (point 4).
2. Secondary side voltage of the low voltage transformer changes in proportion to fluctuation of power source
voltage.
3. The allowable tolerance of the secondary voltage is within ± 5% of nominal voltage.

2. Voltage Check
- Key check point
NO

CHECK POINT

1

IC1 PIN 2, 21, 30, 34

2

IC1 PIN 35

REMARK
-5VDC

T : 20ms(50Hz)
3

IC1 PIN 31 OR 32

T : 250 ns(4MHz)

- Check method
NO

MEASURE POINT

WAVE FORM

REMEDY

REMARK

1

MP1

DC -5V±0.25V

Replace VL1, EC1

NO LOAD

2

MP2

DC -12V±2.0V

Replace EC2, D6, 11, 12

NO LOAD

NOTE
Each measure point must be measured with GND points.

66

Mesurement point

67

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

A

B

RELAY 2 ON

-5VDC

GND

RELAY 2 OFF

GND

-12VDC

STATE

2) When touching START pad, oven lamp turns on.
Fan motor and turntable rotate and cook indicator in display comes on.
✻ Cause : RELAY 1 does not operate. → refer to Circuit Diagram (point 2)
- Check method
POINT

A

B

RELAY 1 ON

-5VDC

GND

RELAY 1 OFF

GND

-12VDC

STATE

4. When there is no grill oscillation.
✻ Cause : RELAY 3 does not operate. → refer to Circuit Diagram (point 6)
- Check method
POINT

A

B

RELAY 3 ON

-5VDC

GND

RELAY 3 OFF

GND

-12VDC

STATE

5. When the door is opened during operation, the count down timer does not stop.
→ refer to Circuit Diagram (point 1)
- Check method
POINT

A

B

1) DOOR OPEN

OPEN

-5VDC

2) DOOR CLOSED

CLOSE

GND

STATE

CHECK NO
1

HETHOD

REMEDY

Check the stage(ON, OFF) of the door open monitor
switch by resistance measurement.

Replace door open monitor switch.

6. When the digital clock does not operate properly.
→ refer to Circuit Diagram (point 5)
POINT
A

WAVE FORM

T: 20 ms(50Hz)

❈ If clock does not keep exact time, you must check resistor R15,16, zener diode ZD1.

68

2. P.C.B. CIRCUIT DIAGRAM

69

✔ 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)

3. P.C.B. LOCATION NO
(1) KOG-371R0S
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

3519150510

1

8

CONNECTOR WAFER

CN2

HLEM15S-1

4CW215SBD0

1

8

DIODE

D1~10

1N4148

DZN4148---

10

9

DIODE

D11, 12

1N4004A

DZN4004A--

2

10

DIODE ZENER

ZD1

MTZ 5.1VB 1/2W

DZTZ5R1B11

1

11

DIODE ZENER

ZD2

MTZ 3.9VB 1/2W

DZTZ3R9B--

1

12

LED DISPLAY

DP1

DDG-631H

DDDG631H--

1

13

R ARRAY

RA1

5P(4) 1/8 100K J

RA-85X104J

1

14

R CARBON FILM

R1~R7

1/6W 330 5%

RD-AZ331J-

7

15

R CARBON FILM

R8, 10, 12, 14, 20

1/6W 1K 5%

RD-AZ102J-

5

16

R CARBON FILM

R11

1/6W 100K 5%

RD-AZ104J-

1

17

R CARBON FILM

R13

1/6W 100 5%

RD-AZ101J-

1

18

R CARBON FILM

R15~17

1/6W 10K 5%

RD-AZ103J-

3

19

R CARBON FILM

R18

1/6W 1M 5%

RD-AZ105J-

1

20

R CARBON FILM

R19

1/4W 27 5%

RD-4Z270J-

1

21

R CARBON FILM

R21

1/6W 4.7K 5%

RD-AZ472J-

1

22

IC REGULATOR

VL1

MC7905C

1MC7905C--

1

23

TRANSISTOR

Q1~5, 7~10

KRA-106M

TZRA106M--

9

24

TRANSISTOR

Q6

KTA-1266Y

TZTA1266Y-

1

25

TRANS POWER

LVT1

DMR-631FS

5EPV035303

1

26

WIRE COPPER

J1~J17

1/0.52 TIN COATING

85801052GY

17

27

IC MICOM

IC1

TMP47C440BN-1A49

13GS371R00

1

28

RESONATOR CERA

CR1

KBR-4.0MSTF

5PKBR40MKS

1

29

SW RELAY

RY1, 3

G5G-1A DC12V

5SC0101121

2

30

SW RELAY

RY2

G5B-1 DC12V

5SC0101110

1

31

C CERA

C6

102 50V Z AXIAL

CCZB1H102K

1

32

C CERA

C1~5, C7

104 50V Z AXIAL

CCZF1H104Z

6

33

PCB SUB

M161

70X122

3514321200

1

34

SW TACT

SW102~107

KPT-1115AM

5S50101Z93

6

35

SW ROTARY

SW101

SDB161PVB17F123636

5S10109002

1

36

R CARBON FILM

101, 102

1/6W 1K 5%

RD-AZ102J-

2

37

WIRE FLAT

WF1

1.25X15X90XCWH

SWJ-159007

1

38

WIRE COPPER

J101

1/0.52 TIN COATING

85801052GY

1

39

CONNECTOR WAFER

CN101

HLEM15R-1

4CW215RBD

1

70

SUB PCB

✔ 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)

(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

YW396-05AV

3519150510

1

8

CONNECTOR WAFER

CN2

HLEM15S-1

4CW215SBD0

1

8

DIODE

D1~10

1N4148

DZN4148---

10

9

DIODE

D11, 12

1N4004A

DZN4004A--

2

10

DIODE ZENER

ZD1

MTZ 5.1VB 1/2W

DZTZ5R1B11

1

11

DIODE ZENER

ZD2

MTZ 3.9VB 1/2W

DZTZ3R9B--

1

12

LED DISPLAY

DP1

DDG-631H

DDDG631H--

1

13

R ARRAY

RA1

5P(4) 1/8 100K J

RA-85X104J

1

14

R CARBON FILM

R1~R7

1/6W 330 5%

RD-AZ331J-

7

15

R CARBON FILM

R8, 10, 12, 14, 20

1/6W 1K 5%

RD-AZ102J-

5

16

R CARBON FILM

R11

1/6W 100K 5%

RD-AZ104J-

1

17

R CARBON FILM

R13

1/6W 100 5%

RD-AZ101J-

1

18

R CARBON FILM

R15~17

1/6W 10K 5%

RD-AZ103J-

3

19

R CARBON FILM

R18

1/6W 1M 5%

RD-AZ105J-

1

20

R CARBON FILM

R19

1/4W 27 5%

RD-4Z270J-

1

21

R CARBON FILM

R21

1/6W 4.7K 5%

RD-AZ472J-

1

22

IC REGULATOR

VL1

MC7905C

1MC7905C--

1

23

TRANSISTOR

Q1~5, 7~10

KRA-106M

TZRA106M--

9

24

TRANSISTOR

Q6

KTA-1266Y

TZTA1266Y-

1

25

TRANS POWER

LVT1

DMR-631FS

5EPV035303

1

26

WIRE COPPER

J1~J17, SJ1

1/0.52 TIN COATING

85801052GY

18

27

IC MICOM

IC1

TMP47C440BN-1A49

13GS371R00

1

28

RESONATOR CERA

CR1

KBR-4.0MSTF

5PKBR40MKS

1

29

SW RELAY

RY1, 3

G5G-1A DC12V

5SC0101121

2

30

SW RELAY

RY2

G5B-1 DC12V

5SC0101110

1

31

C CERA

C6

102 50V Z AXIAL

CCZB1H102K

1

32

C CERA

C1~5, C7

104 50V Z AXIAL

CCZF1H104Z

6

33

PCB SUB

M161

70X122

3514321200

1

34

SW TACT

SW102~107

KPT-1115AM

5S50101Z93

6

35

SW ROTARY

SW101

SDB161PVB17F123636

5S10109002

1

36

R CARBON FILM

101, 102

1/6W 1K 5%

RD-AZ102J-

2

37

WIRE FLAT

WF1

1.25X15X90XCWH

SWJ-159007

1

38

WIRE COPPER

J101

1/0.52 TIN COATING

85801052GY

1

39

CONNECTOR WAFER

CN101

HLEM15R-1

4CW215RBD

1

71

SUB PCB

PRINTED CIRCUIT BOARD 
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
4-7

LOAD
AC 25.8 V

NO LOAD
AC 28.4 V

NOTE :
1. Refer to Circuit Diagram (point 4).
2. Secondary side voltage of the low voltage transformer changes in proportion to fluctuation of power source voltage.
3. The allowable tolerance of the secondary voltage is within ± 5% of nominal voltage.

2. Voltage check
• Key check point
NO

CHECK POINT

REMARK

1

IC 1 PIN 2, 21, 30, 34

–5 VDC

2

IC 1 PIN 35
0V
–5V

3

T:20ms(50Hz)

T

IC 1 PIN 31 OR 32
0V
–5V

T

T: 250 ns (4MHz)

• Check method
NO

MEASURE POINT

1

MP1

2

MP2

WAVE FORM

REMEDY

REMARK

DC -5V±0.25V

Replace VL1, EC1

NO LOAD

DC -12V±2.0V

Replace EC2, D6, D11, D12

NO LOAD

NOTE :
Each measure point must be measured with GND points.

72

Mesurement point

73

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

A

B

RELAY 2 ON

-5VDC

GND

RELAY 2 OFF

GND

-12VDC

STATE

2) When touching START pad, oven lamp turns on.
Fan motor and turntable rotate and cook indicator in display comes on.
✻ Cause : RELAY 1 does not operate. → refer to Circuit Diagram (point 2)
- Check method
POINT

A

B

RELAY 1 ON

-5VDC

GND

RELAY 1 OFF

GND

-12VDC

STATE

4. When there is no grill oscillation.
✻ Cause : RELAY 3 does not operate. → refer to Circuit Diagram (point 6)
- Check method
POINT

A

B

RELAY 3 ON

-5VDC

GND

RELAY 3 OFF

GND

-12VDC

STATE

5. When the door is opened during operation, the count down timer does not stop.
→ refer to Circuit Diagram (point 1)
- Check method
POINT

A

B

1) DOOR OPEN

OPEN

-5VDC

2) DOOR CLOSED

CLOSE

GND

STATE

CHECK NO
1

HETHOD

REMEDY

Check the stage(ON, OFF) of the door open monitor
switch by resistance measurement.

Replace door open monitor switch.

6. When the digital clock does not operate properly.
→ refer to Circuit Diagram (point 5)
POINT
A

WAVE FORM

T: 20 ms(50Hz)

❈ If clock does not keep exact time, you must check resistor R15,16, zener diode ZD1.

74

2. P.C.B. CIRCUIT DIAGRAM

75

✔ 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)

3. P.C.B. LOCATION NO
(1) KOG-374R0S/375R0S
NAME

NAME

SYMBOL

SPECIFICATION

1

PCB MAIN

M166

82 X 146.8

2

BUZZER

BZ1

3

C ARRAY

CA1

4

CAPACITOR CERA

5
6

PART CODE Q'TY REMARK
3514321140

1

BM-20K

3515600100

1

5P(4) 1000PF M 50V

CN4XB-102M

1

C6

102 50V Z AXIAL

CCZB1H102K

1

CAPACITOR CERA

C1~5, C7

104 50V Z AXIAL

CCZF1H104Z

6

CAPACITOR ELEC

EC1

16V RSS 100MF

CEXF1C101V

1

7

CAPACITOR ELEC

EC2

25V RSS 1000MF

CEXF1E102V

1

8

CONNECTOR WAFER

CN1

YW396-02V

3519150520

1

9

CONNECTOR WAFER

CN2

HLEM15S-1

4CW215SBDO

1

10

CONNECTOR WAFER

CN3

YW396-05AV

3519150510

1

11

DIODE SWITCHING

D1~10

1N4148

DZN4148---

10

12

DIODE RECTIFY

D11,12

KN4004A

DZN4004A--

2

13

DIODE ZENER

ZD1

MTZ- 5.1VB 1/2W

DZTZ5R1B--

1

14

DIODE ZENER

ZD2

MTZ- 3.9VB 1/2W

DZTZ3R9B--

1

15

IC MICOM

IC1

TMP47C440BN-1A49

13GS371R00

1

16

IC REGULATOR

VL1

MC7905C

1MC7905C--

1

17

LED DISPLAY

DP1

DDG-631H

DDDG631H--

1

18

R ARRAY

RA1

RGLD4X104J

RA-85X104J

1

19

R CARBON FILM

R19

1/4W

27

5%

RD-4Z270J-

1

20

R CARBON FILM

R13

1/6W 100

5%

RD-AZ101J-

1

21

R CARBON FILM

R1~R7

1/6W 330

5%

RD-AZ331J-

7

22

R CARBON FILM

R8,9,11,14,20

1/6W

1K

5%

RD-AZ102J-

5

23

R CARBON FILM

R21

1/6W 4.7K

5%

RD-AZ472J-

1

24

R CARBON FILM

R15~17

1/6W 10K

5%

RD-AZ103J-

3

25

R CARBON FILM

R12

1/6W 100K

5%

RD-AZ104J-

1

26

R CARBON FILM

R18

1/6W

5%

RD-AZ105J-

1

27

RESONATOR CERA

CR1

KBR-4.0MKSTF

5PKBR40MKS

1

28

SW RELAY

RY1, RY3

G5G-1A 1C 1P DC12V

5SC0101121

2

29

SW RELAY

RY2

OJ-SS-112LM DC 12V

5SC0101404

1

30

TRANSISTOR

Q1~5, Q7~10

KRA-106M

TZRA106M--

9

31

TRANSISTOR

Q6

KTA-1266Y

TZTA1266Y-

1

32

TRANS POWER

LVT1

DMR-631FS

5EPV035303

1

33

WIRE COPPER

J1~J5,J8,J10~13,J15,J17

1/0.52 TIN COATING

85801052GY

12

7.5mm

34

WIRE COPPER

J9,J14,J16

1/0.52 TIN COATING

85801052GY

3

10.0mm

35

WIRE COPPER

J6,J7

1/0.52 TIN COATING

85801052GY

2

12.5mm

36

WIRE FLAT

WF1

15/90 WH C

WSJ-159007

1

37

PCB SUB

M167

82 X 161

3514321220

1

38

CONNECTOR WAFER

CN101

HLEM15R-1

4CW215RBDO

1

39

R CARBON FILM

R101, R102

1/6W 1K 5%

RD-AZ102J-

2

40

SW ROTARY

SW101

SDB161PVB17F123636

5S10109002

1

41

SW TACT

SW102~SW107

KPT-1115AM

5S50101Z93

6

42

WIRE COPPER

J101

1/0.52 TIN COATING

85801052GY

1

76

1M

MAIN PCB

SUB PCB

7.5mm

PRINTED CIRCUIT BOARD 
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
4-7

LOAD
AC 25.8 V

NO LOAD
AC 28.4 V

NOTE :
1. Refer to Circuit Diagram (point 4).
2. Secondary side voltage of the low voltage transformer changes in proportion to fluctuation of power source voltage.
3. The allowable tolerance of the secondary voltage is within ± 5% of nominal voltage.

2. Voltage check
• Key check point
NO

CHECK POINT

REMARK

1

IC 1 PIN 2, 21, 30, 34

–5 VDC

2

IC 1 PIN 35
0V
–5V

3

T:20ms(50Hz)

T

IC 1 PIN 31 OR 32
0V
–5V

T

T: 250 ns (4MHz)

• Check method
NO

MEASURE POINT

1

MP1

2

MP2

WAVE FORM

REMEDY

REMARK

DC -5V±0.25V

Replace VL1, EC1

NO LOAD

DC -12V±2.0V

Replace EC2, D10, D11, D12

NO LOAD

NOTE :
Each measure point must be measured with GND points.

77

Mesurement point

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

A

B

RELAY 2 ON

-5VDC

GND

RELAY 2 OFF

GND

-12VDC

STATE

2) When touching START pad, oven lamp turns on.
Fan motor and turntable rotate and cook indicator in display comes on.
✻ Cause : RELAY 1 does not operate. → refer to Circuit Diagram (point 2)
- Check method
POINT

A

B

RELAY 1 ON

-5VDC

GND

RELAY 1 OFF

GND

-12VDC

STATE

4. When there is no grill oscillation.
✻ Cause : RELAY 3 does not operate. → refer to Circuit Diagram (point 6)
- Check method
POINT

A

B

RELAY 3 ON

-5VDC

GND

RELAY 3 OFF

GND

-12VDC

STATE

5. When the door is opened during operation, the count down timer does not stop.
→ refer to Circuit Diagram (point 1)
- Check method
POINT

A

B

1) DOOR OPEN

OPEN

-5VDC

2) DOOR CLOSED

CLOSE

GND

STATE

CHECK NO
1

HETHOD

REMEDY

Check the stage(ON, OFF) of the door open monitor
switch by resistance measurement.

Replace door open monitor switch.

6. When the digital clock does not operate properly.
→ refer to Circuit Diagram (point 5)
POINT
A

WAVE FORM

T: 20 ms(50Hz)

❈ If clock does not keep exact time, you must check resistor R15,16, zener diode ZD1.

79

2. P.C.B. CIRCUIT DIAGRAM

80

✔ 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)

3. P.C.B. LOCATION NO
(1) KOG-373R0S
NAME

NAME

SYMBOL

SPECIFICATION

PART CODE Q'TY REMARK

1

PCB MAIN

M169

90 X 197

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

CAPACITOR ELEC

EC2

25V RSS 1000MF

CEXF1E102V

1

8

CONNECTOR WAFER

CN1

HLEM15S-1

4CW215SBDO

1

9

CONNECTOR WAFER

CN2

YW396-02V

3519150520

1

10

CONNECTOR WAFER

CN3

YW396-05AV

3519150510

1

11

DIODE SWITCHING

D1~10

1N4148

DZN4148---

10

12

DIODE RECTIFY

D11,12

KN4004A

DZN4004A--

2

13

DIODE ZENER

ZD1

UZ-3.9SBS

DZUZ3R9BSB

1

14

DIODE ZENER

ZD2

UZ-5.1SBS

DZUZ5R1BSB

1

15

IC MICOM

IC1

TMP47C440BN-1A49

13GS371R00

1

16

IC REGULATOR

VL1

MC7905C

1MC7905C--

1

17

LED DISPLAY

DP1

DDG-631H

DDDG631H--

1

18

R ARRAY

RA1

RGLD4X104J

RA-85X104J

1

19

R CARBON FILM

R20

1/4W

27

5%

RD-4Z270J-

1

20

R CARBON FILM

R2

1/6W 100

5%

RD-AZ101J-

1

21

R CARBON FILM

R7~R9, R16~R19

1/6W 330

5%

RD-AZ331J-

7

22

R CARBON FILM

R1, 10, 13, 15, 21

1/6W

1K

5%

RD-AZ102J-

5

23

R CARBON FILM

R14

1/6W 4.7K

5%

RD-AZ472J-

1

24

R CARBON FILM

R3, R5, R6

1/6W 10K

5%

RD-AZ103J-

3

25

R CARBON FILM

R12

1/6W 100K

5%

RD-AZ104J-

1

26

R CARBON FILM

R4

1/6W

5%

RD-AZ105J-

1

27

RESONATOR CERA

CR1

KBR-4.0MKSTF

5PKBR40MKS

1

28

SW RELAY

RY1, RY3

G5G-1A 1C 1P DC12V

5SC0101121

2

29

SW RELAY

RY2

OJ-SS-112LM DC 12V

5SC0101404

1

30

TRANSISTOR

Q2~10

KRA-106M

TZRA106M--

9

31

TRANSISTOR

Q1

KTA-1266Y

TZTA1266Y-

1

32

TRANS POWER

LVT1

DMR-631FS

5EPV035303

1

33

WIRE COPPER

J3, J5~J10

1/0.52 TIN COATING

85801052GY

7

7.5mm

34

WIRE COPPER

J1, J4

1/0.52 TIN COATING

85801052GY

2

10.0mm

35

WIRE COPPER

J2

1/0.52 TIN COATING

85801052GY

1

12.5mm

36

WIRE FLAT

WF1

15/90 WH C

WSJ-159007

1

37

PCB SUB

M170

70 X 197

3514321230

1

38

CONNECTOR WAFER

CN101

HLEM15R-1

4CW215RBDO

1

39

R CARBON FILM

R101, R102

1/6W 1K 5%

RD-AZ102J-

2

40

SW ROTARY

SW107

SDB161PVB17F123636

5S10109002

1

41

SW TACT

SW101~SW106

KPT-1115AM

5S50101Z93

6

42

WIRE COPPER

J101

1/0.52 TIN COATING

85801052GY

1

81

1M

3514321150

1

MAIN PCB

SUB PCB

10mm

✔ 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)

(2) KOG-393R0S
NAME

NAME

SYMBOL

SPECIFICATION

1

PCB MAIN

M169

90 X 197

2

BUZZER

BZ1

3

C ARRAY

CA1

4

CAPACITOR CERA

5
6

PART CODE Q'TY REMARK
3514321150

1

BM-20K

3515600100

1

5P(4) 1000PF M 50V

CN4XB-102M

1

C4

102 50V Z AXIAL

CCZB1H102K

1

CAPACITOR CERA

C1~C3, C5~C7

104 50V Z AXIAL

CCZF1H104Z

6

CAPACITOR ELEC

EC1

16V RSS 100MF

CEXF1C101V

1

7

CAPACITOR ELEC

EC2

25V RSS 1000MF

CEXF1E102V

1

8

CONNECTOR WAFER

CN1

HLEM15S-1

4CW215SBDO

1

9

CONNECTOR WAFER

CN2

YW396-02V

3519150520

1

10

CONNECTOR WAFER

CN3

YW396-05AV

3519150510

1

11

DIODE SWITCHING

D1~10

1N4148

DZN4148---

10

12

DIODE RECTIFY

D11,12

KN4004A

DZN4004A--

2

13

DIODE ZENER

ZD1

UZ-3.9SBS

DZUZ3R9BSB

1

14

DIODE ZENER

ZD2

UZ-5.1SBS

DZUZ5R1BSB

1

15

IC MICOM

IC1

TMP47C440BN-1A49

13GS371R00

1

16

IC REGULATOR

VL1

MC7905C

1MC7905C--

1

17

LED DISPLAY

DP1

DDG-631H

DDDG631H--

1

18

R ARRAY

RA1

RGLD4X104J

RA-85X104J

1

19

R CARBON FILM

R20

1/4W

27

5%

RD-4Z270J-

1

20

R CARBON FILM

R2

1/6W 100

5%

RD-AZ101J-

1

21

R CARBON FILM

R7~R9, R16~R19

1/6W 330

5%

RD-AZ331J-

7

22

R CARBON FILM

R1, 10, 13, 15, 21

1/6W

1K

5%

RD-AZ102J-

5

23

R CARBON FILM

R14

1/6W 4.7K

5%

RD-AZ472J-

1

24

R CARBON FILM

R3, R5, R6

1/6W 10K

5%

RD-AZ103J-

3

25

R CARBON FILM

R12

1/6W 100K

5%

RD-AZ104J-

1

26

R CARBON FILM

R4

1/6W

5%

RD-AZ105J-

1

27

RESONATOR CERA

CR1

KBR-4.0MKSTF

5PKBR40MKS

1

28

SW RELAY

RY1, RY3

G5G-1A 1C 1P DC12V

5SC0101121

2

29

SW RELAY

RY2

OJ-SS-112LM DC 12V

5SC0101404

1

30

TRANSISTOR

Q2~10

KRA-106M

TZRA106M--

9

31

TRANSISTOR

Q1

KTA-1266Y

TZTA1266Y-

1

32

TRANS POWER

LVT1

DMR-631FS

5EPV035303

1

33

WIRE COPPER

J3, J5~J10, SJ1

1/0.52 TIN COATING

85801052GY

8

7.5mm

34

WIRE COPPER

J1, J4

1/0.52 TIN COATING

85801052GY

2

10.0mm

35

WIRE COPPER

J2

1/0.52 TIN COATING

85801052GY

1

12.5mm

36

WIRE FLAT

WF1

15/90 WH C

WSJ-159007

1

37

PCB SUB

M170

70 X 197

3514321230

1

38

CONNECTOR WAFER

CN101

HLEM15R-1

4CW215RBDO

1

39

R CARBON FILM

R101, R102

1/6W 1K 5%

RD-AZ102J-

2

40

SW ROTARY

SW107

SDB161PVB17F123636

5S10109002

1

41

SW TACT

SW101~SW106

KPT-1115AM

5S50101Z93

6

42

WIRE COPPER

J101

1/0.52 TIN COATING

85801052GY

1

82

1M

MAIN PCB

SUB PCB

10mm

EXPLODED VIEW AND PARTS LIST 
1. DOOR ASSEMBLY
Refer to Disassembly and assembly

2. CONTROL PANEL ASSEMBLY
Refer to Disassembly and assembly

3. TOTAL ASSEMBLY

83

✔ 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)

(1) KOG-371G0S/371H0S/371R0S
REF NO

PART CODE

PART NAME

DESCRIPTION

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

NUT HEX

6N-2-5

2

F05

7122401211

SCREW TAPPING

T2S TRS 4X12 MFZN

1

F06

3518904500

THERMOSTAT

OFF : 100 ON : 90 HN #187

1

F07

7121300611

SCREW TAPPING

T2S PAN 3X6 MFZN

1

F08

7122401211

SCREW TAPPING

T2S TRS 4X12 MFZN

1

F09

7112401011

SCREW TAPPING

T1 TRS 4X10 MFZN

2

F10

35113A5QJ5

CORD POWER AS

3X1.5 80X80 120-RTML 1.4M

1

F12

7112401011

SCREW TAPPING

T1 TRS 4X10 MFZN

1

F13

7122401211

SCREW TAPPING

T2S TRS 4X12 MFZN

1

F14

7112401011

SCREW TAPPING

T1 TRS 4X10 MFZN

1

F15

7S627W50X1

NUT HEX

NUT FLANGE M5X0.8P MFZN

1

F16

4414A25110

FUSE

250V 15A 65TS

1

4414A25100

FUSE

250V 15A MDA15

1

F17

3518606100

NOISE-FILTER

DWLF-M13

1

F18

7121402511

SCREW TAPPING

T2S PAN 4X25 MFZN

2

F19

3963513100

MOTOR SHADED POLE

230V 17W OEM-10DWC2-A07

1

3963512310

MOTOR SHADED POLE

230V 20W MW10CA-M02

1

F20

3512517000

GUIDE WIND

PP

1

F21

3511800300

FAN

PP+30% GLASS

1

F22

3518002200

MAGNETRON

2M218H(MF)

1

F23

3516004000

SPECIAL SCREW

T2 BOLT FLANGE 5X12 DACRO

1

F24

7S422X4081

SPECIAL SCREW

TT2 TRS 4X8 SE MFZN

1

F25

3513003200

HOLDER HV CAPACITOR

SECC

1

F26

3518302200

CAPACITOR HV

2100VAC 0.98µF #187

1

F27

3518400400

DIODE HV

HVR-1X-3AB 12KV #187

1

F28

3518701100

FUSE HV

5KV 0.55A HV-41A55-02

1

F29

3518113700

TRANS HV

DY-N80S0-63T

1

F30

3516003700

SPECIAL SCREW

TT3 HEX 4X8 FLG MFZN

4

F31

3510311700

BASE

SBHG

1

F32

7112401011

SCREW TAPPING

T1 TRS 4X10 MFZN

5

84

Q'TY

✔ 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)

REF NO

PART CODE

PART NAME

DESCRIPTION

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 LOCK

POM

1

F40

3513811700

LOCK

POM

1

F41

3513601600

LAMP

BL 240V 25W T25 C7A H187

1

F42

7112401011

SCREW TAPPING

T2 TRS 4X10 MFZN

1

F43

3966310100

MOTOR SYNCRO

220V 2.5W GM-16-24FD12

1

3966310110

MOTOR SYNCRO

220V 2.5W M2LJ49ZT52

1

F44

3518905300

THERMOSTAT

OFF: 75 ON: 65 H #187 NB

1

F45

3513003400

HOLDER THERMOSTAT

PBT

1

F46

7272400811

SCREW TAPTITE

TT3 TRS 4X8 MFZN

1

F47

4078502031

BUTTON LOCKING

PP HONAM A353

2

F48

3511405100

COVER WAVE GUIDE

MICA

1

F49

3517400620

COUPLER

XAREC

1

F50

3514700710

ROLLER

TEFLON

3

F51

3512517300

GUIDE ROLLER

PP 5113MF6 A353B

1

3512517500

GUIDE ROLLER AS

KOR-63150S

1

F52

3517203600

TRAY

GLASS

1

F53

3517206900

TRAY RACK AS

KOG-37150S 110MM

1

85

Q'TY

✔ 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)

(2) KOG-391G0S/391H0S/391R0S
REF NO

PART CODE

PART NAME

DESCRIPTION

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

NUT HEX

6N-2-5

2

F05

7122401211

SCREW TAPPING

T2S TRS 4X12 MFZN

1

F06

3518904500

THERMOSTAT

OFF : 100 ON : 90 HN #187

1

F07

7121300611

SCREW TAPPING

T2S PAN 3X6 MFZN

1

F08

7122401211

SCREW TAPPING

T2S TRS 4X12 MFZN

1

F09

7112401011

SCREW TAPPING

T1 TRS 4X10 MFZN

2

F10

35113A5QJ5

CORD POWER AS

3X1.5 80X80 120-RTML 1.4M

1

F12

7112401011

SCREW TAPPING

T1 TRS 4X10 MFZN

1

F13

7122401211

SCREW TAPPING

T2S TRS 4X12 MFZN

1

F14

7112401011

SCREW TAPPING

T1 TRS 4X10 MFZN

1

F15

7S627W50X1

NUT HEX

NUT FLANGE M5X0.8P MFZN

1

F16

4414A25110

FUSE

250V 15A 65TS

1

4414A25100

FUSE

250V 15A MDA15

1

F17

3518606100

NOISE-FILTER

DWLF-M13

1

F18

7121402511

SCREW TAPPING

T2S PAN 4X25 MFZN

2

F19

3963513100

MOTOR SHADED POLE

230V 17W OEM-10DWC2-A07

1

3963512310

MOTOR SHADED POLE

230V 20W MW10CA-M02

1

F20

3512517000

GUIDE WIND

PP

1

F21

3511800300

FAN

PP+30% GLASS

1

F22

3518002200

MAGNETRON

2M218H(MF)

1

F23

3516004000

SPECIAL SCREW

T2 BOLT FLANGE 5X12 DACRO

1

F24

7S422X4081

SPECIAL SCREW

TT2 TRS 4X8 SE MFZN

1

F25

3513003200

HOLDER HV CAPACITOR

SECC

1

F26

3518302200

CAPACITOR HV

2100VAC 0.98µF #187

1

F27

3518400400

DIODE HV

HVR-1X-3AB 12KV #187

1

F28

3518701100

FUSE HV

5KV 0.55A HV-41A55-02

1

F29

3518114800

TRANS HV

DY-N90S0-86T B

1

F30

3516003700

SPECIAL SCREW

TT3 HEX 4X8 FLG MFZN

4

F31

3510311900

BASE

SBHG

1

F32

7112401011

SCREW TAPPING

T1 TRS 4X10 MFZN

5

86

Q'TY

✔ 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)

REF NO

PART CODE

PART NAME

DESCRIPTION

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 LOCK

POM

1

F40

3513811700

LOCK

POM

1

F41

3513601600

LAMP

BL 240V 25W T25 C7A H187

1

F42

7112401011

SCREW TAPPING

T1 TRS 4X10 MFZN

1

F43

3966310100

MOTOR SYNCRO

220V 2.5W GM-16-24FD12

1

3966310110

MOTOR SYNCRO

220V 2.5W M2LJ49ZT52

1

F44

3518905300

THERMOSTAT

OFF: 75 ON: 65 H #187 NB

1

F45

3513003400

HOLDER THERMOSTAT

PBT

1

F46

7272400811

SCREW TAPTITE

TT3 TRS 4X8 MFZN

1

F47

4078502031

BUTTON LOCKING

PP HONAM A353

2

F48

3511405100

COVER WAVE GUIDE

MICA

1

F49

3517400620

COUPLER

XAREC

1

F50

3514700900

ROLLER

TEFLON

3

F51

3512509210

GUIDE ROLLER

PP

1

3512510620

GUIDE ROLLER AS

KOR-61150S

1

F52

3517203500

TRAY

GLASS

1

F53

3517206900

TRAY RACK AS

KOG-37150S 110MM

1

87

Q'TY

EXPLODED VIEW AND PARTS LIST 
1. DOOR ASSEMBLY
Refer to Disassembly and assembly

2. CONTROL PANEL ASSEMBLY
Refer to Disassembly and assembly

3. TOTAL ASSEMBLY
(1) KOG-376T1S

88

✔ 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)

(2) KOG-391G0S/391H0S/391R0S
REF NO

PART CODE

PART NAME

DESCRIPTION

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 TAPPING

T2S TRS 4X12 MFZN

1

F06

3518904500

THERMOSTAT

OFF : 100 ON : 90 HN #187

1

F07

7121300611

SCREW TAPPING

T2S PAN 3X6 MFZN

1

F08

7122401211

SCREW TAPPING

T2S TRS 4X12 MFZN

1

F09

7112401011

SCREW TAPPING

T1 TRS 4X10 MFZN

2

F10

35113A5QJ5

CORD POWER AS

3X1.5 80X80 120-RTML 1.4M

1

F12

7S312X40A1

SPECIAL SCREW

T1 TRS 4X10 SE MFZN

1

F13

7122401211

SCREW TAPPING

T2S TRS 4X12 MFZN

1

F14

7S627W50X1

NUT HEX

NUT FLANGE M5X0.8P MFZN

1

F15

4414A25110

FUSE

250V 15A 65TS

1

4414A25100

FUSE

250V 15A MDA15

1

F16

3518606100

NOISE-FILTER

DWLF-M13

1

F17

7121402511

SCREW TAPPING

T2S PAN 4X25 MFZN

2

F18

3963513100

MOTOR SHADED POLE

230V 17W OEM-10DWC2-A07

1

F19

3512517000

GUIDE WIND

PP

1

F20

3511800300

FAN

PP+30%GLASS

1

F21

3518002200

MAGNETRON

2M218H(MF)

1

F22

3516004000

SPECIAL SCREW

T2 BOLT FLANGE 5X12 DACRO

1

F23

7S422X4081

SPECIAL SCREW

TT2 TRS 4X8 SE MFZN

1

F24

3513003200

HOLDER HV CAPACITOR

SECC

1

F25

3518302200

CAPACITOR HV

2100VAC 0.98µF #187

1

F26

3518400400

DIODE HV

HVR-1X-3AB 12KV #187

1

F27

3518701100

FUSE HV

5KV 0.55A HV-41A55-02

1

F28

3518115300

TRANS HV

DW-N80S0-63T

1

F29

3516003700

SPECIAL SCREW

TT3 HEX 4X8 FLG MFZN

4

F30

3510311700

BASE

SBHG

1

F31

7112401011

SCREW TAPPING

T1 TRS 4X10 MFZN

5

F32

3512100900

FOOT

PP DASF-130

2

F33

7S422X4081

SPECIAL SCREW

TT2 TRS 4X8 MFZN

1

F34

3515201101

STOPPER HINGE *U

SCP-1

1

89

Q'TY

✔ 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)

REF NO

PART CODE

PART NAME

DESCRIPTION

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 T25 C7A H187

1

F42

7112401011

SCREW TAPPING

T1 TRS 4X10 MFZN

1

F43

3966310100

MOTOR SYNCRO

220V 2.5W GM-16-24FD12

1

F44

3518905300

THERMOSTAT

OFF: 75 ON: 65 H #187 NB

1

F45

3513003400

HOLDER THERMOSTAT

PBT

1

F46

3516003700

SPECIAL SCREW

TT3 TRS 4X8 FLG MFZN

1

F47

4078502031

BUTTON LOCKING

PP HONAM A353

2

F48

3511405100

COVER WAVE GUIDE

MICA

1

F49

3517400620

COUPLER

XAREC

1

F50

3514700710

ROLLER

TEFLON

3

F51

3512517300

GUIDE ROLLER

PP 5113MF6 A353B

1

3512517500

GUIDE ROLLER AS

KOR-63150S

1

F52

3517503600

TRAY

GLASS

1

F53

3517206900

TRAY RACK AS

KOG-37150S 110MM

1

90

Q'TY

(2) KOG-396T1S

91

✔ 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)

(1) KOG-396T1S
NO.
A00
B00
C00
F01
F02
F03
F04
F05
F06
F07
F08
F09
F10
F12
F13
F14
F15
F16
F17
F18
F19
F20
F21
F22
F23
F24
F25
F26
F27
F28
F29
F30
F31
F32
F33
F34
F35
F36
F37
F38
F39/F40
F41
F42
F43
F44
F45
F46
F47
F48
F49
F50
F51
F52
F53
F54
F55

PART CODE
Refer to 6.
Disassembly and
assembly

3510801310
7112401011
3516109910
7392500008
7122401211
3518904500
7121300611
7122401211
7272400811
35113A5QJ5
7272400811
7122401211
7S627W50X1
4414A25110
4414A25100
3518606100
7121402511
3963513100
3963512310
3512517000
3511800300
7121300611
3518903400
3518002200
3516004000
7S422X4081
3513003200
3518302200
3518400400
3518701100
3518114800
3516003700
3510311900
7112401011
3512100900
7S422X4081
3515201101
4415A17352
4415A66910
4415A17352
3513702610
3513811710
3513601600
7112401011
3966310100
3518905600
3513003400
7S422X4081
4078502031
3511405100
3517400620
3514700900
3512509210
3512510620
3517203500
3517206900

PART NAME
DOOR AS
CONTROL-PANEL AS
INSULATOR HEATER AS
CABINET
SPECIAL SCREW
CAVITY AS
NUT HEX
SCREW TAPPING
THERMOSTAT
SCREW TAPPING
SCREW TAPPING
SCREW TAPTITE
CORD POWER AS
SCREW TAPTITE
SCREW TAPPING
NUT HEX
FUSE
FUSE
NOISE-FILTER
SCREW TAPPING
MOTOR SHADED POLE
MOTOR SHADED POLE
GUIDE WIND
FAN
SCREW TAPPING
THERMOSTAT
MAGNETRON
SPECIAL SCREW
SPECIAL SCREW
HOLDER HV CAPACITOR
CAPACITOR HV
DIODE HV
FUSE HV
TRANS HV
SPECIAL SCREW
BASE
SCREW TAPPING
FOOT
SPECIAL SCREW
STOPPER HINGE*U
SW MICRO
SW MICRO
SW MICRO
LEVER LOCK
LOCK
LAMP
SCREW TAPPING
MOTOR SYNCRO
THERMOSTAT
HOLDER THERMOSTAT
SPECIAL SCREW
BUTTON LOCKING
COVER WAVE GUIDE
COUPLER
ROLLER
GUIDE ROLLER
GUIDE ROLLER AS
TRAY
TRAY RACK AS

DESCRIPTION
Refer to 6. Disassembly and
assembly

SECC
T1 TRS 4X10 MFZN
KOG-37150S
6N-2-5
T2S TRS 4X12 MFZN
OFF:100 ON:90 HN #187
T2S PAN 3X6 MFZN
T2S TRS 4X12 MFZN
TT3 TRS 4X8 MFZN
3X1.5 80X70 120-RTML
TT3 TRS 4X8 MFZN
T2S TRS 4X12 MFZN
NUT FL M5X0.8P MFZN
250V 15A 65TS
250V 15A MDA
DWLF-M13
T2S PAN 4X25 MFZN
230V 17W OEM-10DWC2-A07
230V 20W MW10CA-M02
PP
PP+30% GLASS
T2S PAN 3X6 MFZN
OFF:150 ON:60 V #187
2M218H (MF)
T2 BOLT FL 5X12 DACRO
TT2 TRS 4X8 MFZN
SECC
2100VAC 0.98µF #187
HVR-1X-3AB 112KV #187
5KV 0.55A HV-41A55-02 #187
DY-N90S0-86TB
TT3 HEX 4X8 SE MFZN
SBHG
T1 TRS 4X10 MFZN
PP DASF-130
TT2 TRS 4X8 MFZN
SCP-1
VP-533A-OF SPNO #187 200G
VP-531A-OF/SZM-V16-FA-61
VP-533A-OF SPNO #187 200G
POM
POM
BL 240V 25W T25 C7A H187
T1 TRS 4X10 MFZN
220V 2.5 GM-16-24FD12
OFF:80 ON:50 #187 NB
PBT
TT2 TRS 4X8 SE MFZN
PP
MICA
XAREC
TEFLON
PP
KOR-61152S
GLASS
KOG-37150S 110MM

92

SUPPLY
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O

REMARK

O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
X
X
O
O
O

PRIMARY
MONITOR
SECONDARY

EXPLODED VIEW AND PARTS LIST 
1. DOOR ASSEMBLY
Refer to Disassembly and assembly

2. CONTROL PANEL ASSEMBLY
Refer to Disassembly and assembly

3. TOTAL ASSEMBLY
(1) KOG-374R0S

93

✔ 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)

(1) KOG-374R0S
NO.
A00
B00
C00
F01
F02
F03
F04
F05
F06
F07
F08
F09
F10
F12
F13
F14
F15
F16
F17
F18
F19
F20
F21
F22
F23
F24
F25
F26
F27
F28
F29
F30
F31
F32
F33
F34
F35
F36
F37/F38
F39
F40
F41
F42
F43
F44
F45
F46
F47
F48
F49
F50
F51
F52

PART CODE
Refer to 6.
Disassembly and
assembly

3510801310
7112401011
3516109610
7392500008
7122401211
3518904500
7121300611
7122401211
7272400811
35113A5QJ5
7272400811
7122401211
7S627W50X1
4414A25110
4414A25100
3518606100
7121402511
3512517000
3963513100
3963512310
3511800300
3518002200
3516004000
7S422X4081
3513003200
3518302200
3518400400
3518701100
3518113700
3516003700
3510311700
7112401011
3512100900
7S422X4081
3515201101
4415A17352
4415A66910
4415A17352
3513702610
3513811710
3513601600
7112401011
3966310100
3518905300
3513003400
7S422X4081
3511405100
3517400620
3514700710
3512517300
3512517500
3517203600
3517206900

PART NAME
DOOR AS
CONTROL-PANEL AS
INSULATOR HEATER AS
CABINET
SPECIAL SCREW
CAVITY AS
NUT HEX
SCREW TAPPING
THERMOSTAT
SCREW TAPPING
SCREW TAPPING
SCREW TAPTITE
CORD POWER AS
SCREW TAPTITE
SCREW TAPPING
NUT HEX
FUSE
FUSE
NOISE-FILTER
SCREW TAPPING
GUIDE WIND
MOTOR SHADED POLE
MOTOR SHADED POLE
FAN
MAGNETRON
SPECIAL SCREW
SPECIAL SCREW
HOLDER HV CAPACITOR
CAPACITOR HV
DIODE HV
FUSE HV
TRANS HV
SPECIAL SCREW
BASE
SCREW TAPPING
FOOT
SPECIAL SCREW
STOPPER HINGE*U
SW MICRO
SW MICRO
SW MICRO
LEVER LOCK
LOCK
LAMP
SCREW TAPPING
MOTOR SYNCRO
THERMOSTAT
HOLDER THERMOSTAT
SPECIAL SCREW
COVER WAVE GUIDE
COUPLER
ROLLER
GUIDE ROLLER
GUIDE ROLLER AS
TRAY
TRAY RACK AS

DESCRIPTION
Refer to 6. Disassembly and
assembly

SECC
T1 TRS 4X10 MFZN
KOG-37150S
6N-2-5
T2S TRS 4X12 MFZN
OFF:100 ON:90 HN #187
T2S PAN 3X6 MFZN
T2S TRS 4X12 MFZN
TT3 TRS 4X8 MFZN
3X1.5 80X70 120-RTML
TT3 TRS 4X8 MFZN
T2S TRS 4X12 MFZN
NUT FL M5X0.8P MFZN
250V 15A 65TS
250V 15A MDA
DWLF-M13
T2S PAN 4X25 MFZN
PP
230V 17W OEM-10DWC2-A07
230V 20W MW10CA-M02
PP+30% GLASS
2M218H (MF)
T2 BOLT FL 5X12 DACRO
TT2 TRS 4X8 MFZN
SECC
2100VAC 0.98µF #187
HVR-1X-3AB 112KV #187
5KV 0.55A HV-41A55-02 #187
DY-N80S0-63T
TT3 HEX 4X8 MFZN
SBHG
T1 TRS 4X10 MFZN
PP DASF-130
TT2 TRS 4X8 MFZN
SCP-1
VP-533A-OF SPNO #187 200G
VP-531A-OF/SZM-V16-FA-61
VP-533A-OF SPNO #187 200G
POM
POM
BL 240V 25W T25 C7A H187
T1 TRS 4X10 MFZN
220V 2.5 GM-16-24FD12
OFF:75 ON:65 #187 NB
PBT
TT2 TRS 4X8 SE MFZN
MICA
XAREC
TEFLON
PP 5113MF6 A353B
KOR-63150S
GLASS
KOG-37150S 110MM

94

SUPPLY
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O

REMARK

O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
X
X
O
O
O

KOG-37150S

PRIMARY
MONITOR
SECONDARY

EXPLODED VIEW AND PARTS LIST 
1. DOOR ASSEMBLY
Refer to Disassembly and assembly

2. CONTROL PANEL ASSEMBLY
Refer to Disassembly and assembly

3. TOTAL ASSEMBLY
(1) KOG-375R0S

95

✔ 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)

(1) KOG-375R0S
NO.
A00
B00
C00
F01
F02
F03
F04
F05
F06
F07
F08
F09
F10
F12
F13
F14
F15
F16
F17
F18
F19
F20
F21
F22
F23
F24
F25
F26
F27
F28
F29
F30
F31
F32
F33
F34
F35
F36
F37/F38
F39
F40
F41
F42
F43
F44
F45
F46
F47
F48
F49
F50
F51
F52

PART CODE
Refer to 6.
Disassembly and
assembly

3510801310
7112401011
3516109610
7392500008
7122401211
3518904500
7121300611
7122401211
7272400811
35113A5QJ5
7272400811
7122401211
7S627W50X1
4414A25110
4414A25100
3518606100
7121402511
3512517000
3963513100
3963512310
3511800300
3518002200
3516004000
7S422X4081
3513003200
3518302200
3518400400
3518701100
3518113700
3516003700
3510311700
7112401011
3512100900
7S422X4081
3515201101
4415A17352
4415A66910
4415A17352
3513702610
3513811710
3513601600
7112401011
3966310100
3518905300
3513003400
7S422X4081
3511405100
3517400620
3514700710
3512517300
3512517500
3517203600
3517206900

PART NAME
DOOR AS
CONTROL-PANEL AS
INSULATOR HEATER AS
CABINET
SPECIAL SCREW
CAVITY AS
NUT HEX
SCREW TAPPING
THERMOSTAT
SCREW TAPPING
SCREW TAPPING
SCREW TAPTITE
CORD POWER AS
SCREW TAPTITE
SCREW TAPPING
NUT HEX
FUSE
FUSE
NOISE-FILTER
SCREW TAPPING
GUIDE WIND
MOTOR SHADED POLE
MOTOR SHADED POLE
FAN
MAGNETRON
SPECIAL SCREW
SPECIAL SCREW
HOLDER HV CAPACITOR
CAPACITOR HV
DIODE HV
FUSE HV
TRANS HV
SPECIAL SCREW
BASE
SCREW TAPPING
FOOT
SPECIAL SCREW
STOPPER HINGE*U
SW MICRO
SW MICRO
SW MICRO
LEVER LOCK
LOCK
LAMP
SCREW TAPPING
MOTOR SYNCRO
THERMOSTAT
HOLDER THERMOSTAT
SPECIAL SCREW
COVER WAVE GUIDE
COUPLER
ROLLER
GUIDE ROLLER
GUIDE ROLLER AS
TRAY
TRAY RACK AS

DESCRIPTION
Refer to 6. Disassembly and
assembly

SECC
T1 TRS 4X10 MFZN
KOG-37150S
6N-2-5
T2S TRS 4X12 MFZN
OFF:100 ON:90 HN #187
T2S PAN 3X6 MFZN
T2S TRS 4X12 MFZN
TT3 TRS 4X8 MFZN
3X1.5 80X70 120-RTML
TT3 TRS 4X8 MFZN
T2S TRS 4X12 MFZN
NUT FL M5X0.8P MFZN
250V 15A 65TS
250V 15A MDA
DWLF-M13
T2S PAN 4X25 MFZN
PP
230V 17W OEM-10DWC2-A07
230V 20W MW10CA-M02
PP+30% GLASS
2M218H (MF)
T2 BOLT FL 5X12 DACRO
TT2 TRS 4X8 MFZN
SECC
2100VAC 0.98µF #187
HVR-1X-3AB 112KV #187
5KV 0.55A HV-41A55-02 #187
DY-N80S0-63T
TT3 HEX 4X8 MFZN
SBHG
T1 TRS 4X10 MFZN
PP DASF-130
TT2 TRS 4X8 MFZN
SCP-1
VP-533A-OF SPNO #187 200G
VP-531A-OF/SZM-V16-FA-61
VP-533A-OF SPNO #187 200G
POM
POM
BL 240V 25W T25 C7A H187
T1 TRS 4X10 MFZN
220V 2.5 GM-16-24FD12
OFF:75 ON:65 #187 NB
PBT
TT2 TRS 4X8 SE MFZN
MICA
XAREC
TEFLON
PP 5113MF6 A353B
KOR-63150S
GLASS
KOG-37150S 110MM

96

SUPPLY
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O

REMARK

O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
X
X
O
O
O

KOG-37150S

PRIMARY
MONITOR
SECONDARY

EXPLODED VIEW AND PARTS LIST 
1. DOOR ASSEMBLY
Refer to Disassembly and assembly

2. CONTROL PANEL ASSEMBLY
Refer to Disassembly and assembly

3. TOTAL ASSEMBLY

97

✔ 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)

(1) KOG-373R0S
REF NO

PART CODE

A00

3511712170

B00

PKCPSWZ600

C00

PART NAME

DESCRIPTION

Q'TY

DOOR AS

KOG-63350S

1

CONTROL PANEL AS

KOG-373R0S

1

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 TRS 4X12 MFZN

1

F06

3518904500

THERMOSTAT

OFF : 100 ON : 90 HN #187

1

F07

7121300611

SCREW TAPPING

T2S PAN 3X6 MFZN

1

F08

7122401211

SCREW TAPPING

T2S TRS 4X12 MFZN

1

F09

7112401011

SCREW TAPPING

T1 TRS 4X10 MFZN

2

F10

35113A5QJ5

CORD POWER AS

3X1.5 80X80 120-RTML 1.4M

1

F12

7112401011

SCREW TAPPING

T1 TRS 4X10 MFZN

1

F13

7122401211

SCREW TAPPING

T2S TRS 4X12 MFZN

1

F14

7112401011

SCREW TAPPING

T1 TRS 4X10 MFZN

1

F15

7S627W50X1

NUT HEX

NUT FLANGE M5X0.8P MFZN

1

F16

4414A25110

FUSE

250V 15A 65TS

1

4414A25100

FUSE

250V 15A MDA15

1

F17

3518606100

NOISE-FILTER

DWLF-M13

1

F18

7121402511

SCREW TAPPING

T2S PAN 4X25 MFZN

2

F19

3963513100

MOTOR SHADED POLE

230V 17W OEM-10DWC2-A07

1

3963512310

MOTOR SHADED POLE

230V 20W MW10CA-M02

1

F20

3512517000

GUIDE WIND

PP

1

F21

3511800300

FAN

PP+30% GLASS

1

F22

3518002200

MAGNETRON

2M218H(MF)

1

F23

3516004000

SPECIAL SCREW

T2 BOLT FLANGE 5X12 DACRO

1

F24

7S422X4081

SPECIAL SCREW

TT2 TRS 4X8 SE MFZN

1

F25

3513003200

HOLDER HV CAPACITOR

SECC

1

F26

3518302200

CAPACITOR HV

2100VAC 0.98µF #187

1

F27

3518400400

DIODE HV

HVR-1X-3AB 12KV #187

1

F28

3518701100

FUSE HV

5KV 0.55A HV-41A55-02

1

F29

3518113700

TRANS HV

DY-N80S0-63T

1

F30

3516003700

SPECIAL SCREW

TT3 HEX 4X8 FLG MFZN

4

F31

3510311700

BASE

SBHG

1

F32

7112401011

SCREW TAPPING

T1 TRS 4X10 MFZN

5

98

✔ 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)

REF NO

PART CODE

PART NAME

DESCRIPTION

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 LOCK

POM

1

F40

3513811710

LOCK

POM

1

F41

3513601600

LAMP

BL 240V 25W T25 C7A H187

1

F42

7112401011

SCREW TAPPING

T1 TRS 4X10 MFZN

1

F43

3966310100

MOTOR SYNCRO

220V 2.5W GM-16-24FD12

1

3966310110

MOTOR SYNCRO

220V 2.5W M2LJ49ZT52

1

F44

3518905300

THERMOSTAT

OFF: 75 ON: 65 H #187 NB

1

F45

3513003400

HOLDER THERMOSTAT

PBT

1

F46

7272400811

SCREW TAPTITE

TT3 TRS 4X8 MFZN

1

F47

4078502031

BUTTON LOCKING

PP HONAM A353

2

F48

3511405100

COVER WAVE GUIDE

MICA

1

F49

3517400620

COUPLER

XAREC

1

F50

3514700710

ROLLER

TEFLON

3

F51

3512517300

GUIDE ROLLER

PP 5113MF6 A353B

1

3512517500

GUIDE ROLLER AS

KOR-63150S

1

F52

3517203600

TRAY

GLASS

1

F53

3517206900

TRAY RACK AS

KOG-37150S 110MM

1

99

Q'TY

✔ 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)

(2) KOG-393R0S
REF NO

PART CODE

A00

3511712720

B00

PART NAME

DESCRIPTION

Q'TY

DOOR AS

KOR-86350S

1

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

6N-2-5

2

F05

7122401211

SCREW TAPPING

T2S TRS 4X12 MFZN

1

F06

3518904500

THERMOSTAT

OFF : 100 ON : 90 HN #187

1

F07

7121300611

SCREW TAPPING

T2S PAN 3X6 MFZN

1

F08

7122401211

SCREW TAPPING

T2S TRS 4X12 MFZN

1

F09

7112401011

SCREW TAPPING

T1 TRS 4X10 MFZN

2

F10

35113A5QJ5

CORD POWER AS

3X1.5 80X80 120-RTML 1.4M

1

F12

7112401011

SCREW TAPPING

T1 TRS 4X10 MFZN

1

F13

7122401211

SCREW TAPPING

T2S TRS 4X12 MFZN

1

F14

7112401011

SCREW TAPPING

T1 TRS 4X10 MFZN

1

F15

7S627W50X1

NUT HEX

NUT FLANGE M5X0.8P MFZN

1

F16

4414A25110

FUSE

250V 15A 65TS

1

4414A25100

FUSE

250V 15A MDA15

1

F17

3518606100

NOISE-FILTER

DWLF-M13

1

F18

7121402511

SCREW TAPPING

T2S PAN 4X25 MFZN

2

F19

3963513100

MOTOR SHADED POLE

230V 17W OEM-10DWC2-A07

1

3963512310

MOTOR SHADED POLE

230V 20W MW10CA-M02

1

F20

3512517000

GUIDE WIND

PP

1

F21

3511800300

FAN

PP+30% GLASS

1

F22

3518002200

MAGNETRON

2M218H(MF)

1

F23

3516004000

SPECIAL SCREW

T2 BOLT FLANGE 5X12 DACRO

1

F24

7S422X4081

SPECIAL SCREW

TT2 TRS 4X8 SE MFZN

1

F25

3513003200

HOLDER HV CAPACITOR

SECC

1

F26

3518302200

CAPACITOR HV

2100VAC 0.98µF #187

1

F27

3518400400

DIODE HV

HVR-1X-3AB 12KV #187

1

F28

3518701100

FUSE HV

5KV 0.55A HV-41A55-02

1

F29

3518114800

TRANS HV

DY-N90S0-86T B

1

F30

3516003700

SPECIAL SCREW

TT3 HEX 4X8 FLG MFZN

4

F31

3510311900

BASE

SBHG

1

F32

7112401011

SCREW TAPPING

T1 TRS 4X10 MFZN

5

100

✔ 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)

REF NO

PART CODE

PART NAME

DESCRIPTION

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 LOCK

POM

1

F40

3513811710

LOCK

POM

1

F41

3513601600

LAMP

BL 240V 25W T25 C7A H187

1

F42

7112401011

SCREW TAPPING

T1 TRS 4X10 MFZN

1

F43

3966310100

MOTOR SYNCRO

220V 2.5W GM-16-24FD12

1

3966310110

MOTOR SYNCRO

220V 2.5W M2LJ49ZT52

1

F44

3518905300

THERMOSTAT

OFF: 75 ON: 65 H #187 NB

1

F45

3513003400

HOLDER THERMOSTAT

PBT

1

F46

7272400811

SCREW TAPTITE

TT3 TRS 4X8 MFZN

1

F47

4078502031

BUTTON LOCKING

PP HONAM A353

2

F48

3511405100

COVER WAVE GUIDE

MICA

1

F49

3517400620

COUPLER

XAREC

1

F50

3514700900

ROLLER

TEFLON

3

F51

3512509210

GUIDE ROLLER

PP

1

3512510620

GUIDE ROLLER AS

KOR-61150S

1

F52

3517203500

TRAY

GLASS

1

F53

3517206900

TRAY RACK AS

KOG-37150S 110MM

1

101

Q'TY

DAEWOO ELECTRONICS CO., LTD.
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 DATE: Dec. 1999



---

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