Page 1
S/M No. : G370A0P001
Service Manual
Microwave Oven
Model :
KOG-370A0P
KOG-390A0P
DAEWOO ELECTRONICS CO., LTD
http : //svc.dwe.co.kr
OCT. 1999
Page 2
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 guide 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.................................................................................................................... 5
3. CONTROL PANEL........................................................................................................................ 6
INSTALLATION .................................................................................................................................. 7
OPERATIONS AND FUNCTIONS....................................................................................................... 8
DISASSEMBLY AND ASSEMBLY...................................................................................................... 9
INTERLOCK MECHANISM AND ADJUSTMENT............................................................................... 18
TROUBLE SHOOTING GUIDE ........................................................................................................... 19
MEASUREMENT AND TEST.............................................................................................................. 23
1. MEASUREMENT OF THE MICROWAVE POWER OUTPUT ...................................................... 23
2. MICROWAVE RADIATION TEST................................................................................................. 24
3. COMPONENT TEST PROCEDURE............................................................................................. 25
WIRING DIAGRAM.............................................................................................................................. 26
PRINTED CIRCUIT BOARD................................................................................................................ 27
1. CIRCUIT CHECK PROCEDURE .................................................................................................. 27
2. PCB CIRCUIT DIAGRAM.............................................................................................................. 30
3. P.C.B. LOCATION NO. ................................................................................................................. 31
EXPLODED VIEW AND PARTS LIST................................................................................................. 33
1. DOOR ASSEMBLY....................................................................................................................... 33
2. CONTROL PANEL ASSEMBLY.................................................................................................... 33
3. TOTAL ASSEMBLY....................................................................................................................... 33
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SAFETY AND PRECAUTIONS
1. FOR SAFE OPERATION
Damage that allows the microwave energy (that cooks or heats the food) to escape will result in poor cooking and may cause
serious bodily injury to the operator.
IF ANY OF THE FOLLOWING CONDITIONS EXIST, OPERATOR MUST NOT USE THE APPLIANCE.
(Only a trained service personnel should make repairs.)
1) A broken door hinge.
2) A broken door viewing screen.
3) A broken front panel, oven cavity.
4) A loosened door lock.
5) 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 manins 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 termianl in the plug which is marked with the
letter ‘E’, earth 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.
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SPECIFICATIONS
MODEL KOG-370A KOG-390A
POWER SUPPLY 220V,60Hz, SINGLE PHASE WITH EARTHING
MICROWAVE 1200W 1300W
POWER
CONSUMPTION
MICROWAVE ENERGY OUTPUT 800W 900W
MICROWAVE FREQUENCY 2450MHz
OUTSIDE DIMENSIONS (W X H X D) 465 x 279 x 360mm (18.3 x 11.0 x 14.2 in.) 495 x 294 x 388mm (19.5 x 11.6 x 15.3 in.)
CAVITY DIMENSIONS (W X H X D) 290 x 220 x 306 mm (11.4 x 8.7 x 12.0 in.) 320 x 244 x 338mm (12.6 x 9.6 x 13.3 in.)
NET WEIGHT APPROX. 13.7Kg (30.2lbs.) APPROX. 15.8Kg (34.9lbs.)
TIMER 59 min. 90 sec.
FUNCTION SELECTIONS MICROWAVE
POWER SELECTIONS 10 LEVELS
GRILL 1050W 1050W
COMBINATION 2200W 2350W
CAVITY VOLUME 0.7 Cu.Ft. 0.9 Cu.Ft.
¢À
SPECIFICATIONS ARE SUBJECT TO CHANGE WITHOUT NOTICE.
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EXTERNAL VIEW
1. OUTER DIMENSION
465/495
360/388
4
9
2
/
9
7
2
4
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2. FEATURE DIAGRAM
EXTERNAL VIEW
1. DOOR SEAL -
2. REFLECTOR (Insulator Heater)
3. HEATING ELEMENT
4. OVEN CAVITY
5. SEFETY INTERLOCK SYSTEM
6. DOOR RELEASE BUTTON -
door is opened.
7. METAL RACK
8. COUPLER -
9. ROLLER GUIDE -
10. GLASS COOKING TRAY -
cooking.
11. DOOR VIEWING SCREEN -
microwave.
Door seal maintains the microwave energy within the oven cavity and prevents microwave leakage.
This fits over the shaft in the center of the ovens cavity floor. This is to remain in the oven for all cooking.
This must always be used for cooking together with the glass cooking tray.
Made of special heat resistant glass. Food in a proper receptacle is placed on this tray for
By pushing this button the latch system cut off all circuits and stops the oven before the
Allows viewing of food. The screen is designed so that light can pass through, but not the
12. DOOR HOOK -
the magnetron will automatically shut off.
When the door is closed, it will automatically shut off. If the door is opened while the oven is operating,
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EXTERNAL VIEW
3. CONTROL PANEL
12
10
2
COMBI TIMER/g
M/W DEF.
3
8
One Touch Cook Auto Defrost
Combi
Power
1hour
10
GRILL
1. Bread
2. Soup
3. Baked Potato
4. Fresh Vegetable
5. Frozen Vegetable
Dish Warmer
Frozen Pizza
Beverage
Pasta
Grill
Kitchen
Timer
10min
min
1
min
Auto
Cook
Defrost
Clock
1min
10
Meat
Poultry
Fish
sec
4
7
9
11
13
1
1. TIME SET PAD -
2. DISPLAY -
3. ONE TOUCH -
4. AUTO COOK -
5. MORE -
6. LESS -
Cooking time, power level, indicators and present time are displayed.
Used to cook or reheat specific quantities of food.
Used to cook or reheat.
Used to add time to cooking.
Used to remove time from cooking.
7. AUTO DEFROST -
8. COMBI -
9. GRILL -
10. POWER -
11. DEFROST -
Used to cook COMBI.
Used to cook GRILL
Used to set power level.
Used to defrost foods. (for time)
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14
STOP
CLEAR
START
EASY COOK
Used to set the cooking time and the present time.
Used to defrost foods.(for weight)
6
5
12. KITCHEN TIMER -
13. CLOCK -
Used to set clock.
14. STOP/CLEAR -
Used as a minute timer, to delay the start of cooking, or to set a holding time after cooking.
Used to stop the oven operation or to delete the cooking data.
15. START/EASY COOK -
Used to start the oven and also used to set a reheat time.
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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
¢Ñ
Check your local power source.
This microwave oven requires a current of approximately 11 amperes, 220 Volts, 60 Hz.
¢Ñ
Power supply cord is about 0.8 meters long.
¢Ñ
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.
¢Ñ
This appliance is supplied with cable of special type, which, if damaged, must be repaired with cable of same type.
Such a cable can be purchased from DAEWOO and must be installed by a 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 3-wire 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.
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OPERATIONS 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 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 is touched during the oven operation, the oven stops cooking and all information retained.
To erase all information (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 decrease 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 sure 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
Once P-HI 100 %
Twice P-90 90 %
3 times P-80 80 %
4 times P-70 70 %
5 times P-60 60 %
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 %
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DISASSEMBLY AND ASSEMBLY
Cautions to be observed when trouble shooting
Unlike many other appliances, the microwave oven is 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
insulated 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.
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.
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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.
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3. To remove door parts.
DISASSEMBLY AND ASSEMBLY
DOOR ASSEMBLY
KOG-370A : 3511710320
KOG-390A : 3511710720
(1) KOG-370A
REF. NO PART CODE PART NAME DESCRIPTION QTY REMARK
A01 3512203810 FRAME DOOR ABS XR-401 H-2938 1
A02 3517003050 BARRIER-SCREEN*O ACRYL 1
A03 3515304610 SUPPORTER BARR-S*O 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
(2) KOG-390A
REF. NO PART CODE PART NAME DESCRIPTION QTY REMARK
A01 3512204110 FRAME DOOR ABS XR-401 H-2938 1
A02 3517003150 BARRIER-SCREEN*O ACRYL 1
A03 3515304410 SUPPORTER BARR-S*O 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
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DISASSEMBLY AND ASSEMBLY
1) Remove the gasket door from door weld as.
2) Remove the barrier screen inner from door 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 supporter barrier screen outer from door frame.
7) Remove the barrier screen outer from door frame.
8) 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’.
¢º
Loosen a screw on stopper hinge top, and then
push the door to contact the door seal to oven front surface.
¢º
Tighten a screw.
2) To reduce gap located on part ‘B’.
¢º
Loosen two screws on stopper hinge under, and then
push the door to contact the door seal to oven front surface.
¢º
Tighten two screws.
NOTE
A small gap may be acceptable if the microwave leakage does not exceed 4mW/cm
2
.
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5. To remove control panel parts.
DISASSEMBLY AND ASSEMBLY
CONTROL-PANEL ASSEMBLY
KOG-370A : PKCPSWBV00
KOG-390A : PKCPSWBW00
(1) KOG-370A
REF.NO PART CODE PART NAME DESCRIPTION QTY REMARK
B01 3518521620 SWITCH MEMBRANE KOG-370A0S 1
B02 3516719410 CONTROL-PANEL ABS XR-401 H-2938 1
B03 PKMPMSBT00 PCB MAIN AS
B04 7122401211 SCREW TAPPING T2S TRS 4X12 MFZN 4
B05 3513702710 LEVER DOOR OPEN ABS XR-401 H-2938 1
B06 441G430171 SPRING BUTTON SWP DIA0.7 1
B07 3516906910 BUTTON DOOR OPEN
KOG-371G0S
ABS XR-401 H-2938
1
1
(2)KOG-390A
REF.NO PART CODE PART NAME DESCRIPTION QTY REMARK
B01 3518521720 SWITCH MEMBRANE KOG-390A0S 1
B02 3516720210 CONTROL-PANEL ABS XR-401 H-2938 1
B03 PKMPMSBW00 PCB MAIN AS KOG-390A0S 1
B04 7122401211 SCREW TAPPING T2S TRS 4X12 MFZN 4
B05 3513702710 LEVER DOOR OPEN ABS XR-401 H-2938 1
B06 441G430171 SPRING BUTTON SWP DIA0.7 1
B07 3516906910 BUTTON DOOR OPEN ABS XR-401 H-2938 1
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DISASSEMBLY AND ASSEMBLY
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.
¡ß
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.
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8. To remove wind guide assembly.
(1) Remove a screw which secure the wind guide assembly.
(2) Draw forward the wind guide assembly.
(3) Pull the fan from the motor shaft.
(4) Remove two screws which secure the motor shaded pole.
(5) Remove the motor shaded pole.
(6) Reverse the above steps for reassembly.
DISASSEMBLY AND ASSEMBLY
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.
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DISASSEMBLY AND ASSEMBLY
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 assembly.
(1) Remove the three nuts.
(2) Remove the insulator heater assembly.
(3) Reverse the above steps for reassembly.
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12. To remove heater parts.
DISASSEMBLY AND ASSEMBLY
INSULATOR HEATER AS : 3513302710
REF.NO PART CODE PART NAME DESCRIPTION QTY REMARK
C01 7392500008 NUT HEX 6N-2-5 SUS 1
C02 3515000600 SPACER INSULATOR *I C3771BD 2
C03 3513301100 INSULATOR HEATER SPP T0.8 1
C04 3512803500 HEATER 220V 1000W 1SOPE47503 1
C05 7002500613 SCREW MACHINE TRS 5X6 MFCR 1
C06 7002400413 SCREW MACHINE TRS 4X4 MFCR 2
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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
monitor 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 assembly 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
4mW/cm2, readjust interlock mechanism.
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TROUBLE SHOOTING GUIDE
CHECK
Continuity
0 infinite
Approx.
(normal)
Replace
Replace
Replace
Replace
Malfunction
Fuse again
Replace
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 transformer, disconnect one lead 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)
CONDITION
Fuse blows.
Oven does not operate at all : any inputs can not be accepted.
RESULT CAUSE REMEDY
Check continuity of
interlock monitor switch
with door closed
(COM NC)¡ê
Check continuity of both
primary and secondary
interlock switch with door
colosed
Check continuity of primary
interlock switch contact
with door partially open
until interlock monitor switch
contact close
(COM<->NO)
Continuity
No Continuity
No Continuity
No Continuity
Continuity
Malfunction of
interlock switch
Shorted contacts
of primary
interlock switch.
of interlock
monitor
switch
NOTE 1
NOTE 1
NOTE 1
Ω
Check continuity of
primary winding of low
voltage transformer
Disconnect high voltage
fuse and operate the unit
or
150~310
blows
19
Defective low
voltage
transformer
Defective high
voltage transformer
Page 21
TROUBLE SHOOTING GUIDE
CONDITION
Open power
supply cord
Replace
CONDITION
Adjust or
Adjust or
Replace
Replace
Malfunction
0 V
Approx.
Malfunction
Defective
Faulty
contacts of
CHECK RESULT CAUSE REMEDY
Outlet has
proper voltage
Fuse does not
blow.
Check continuity of
magnetron
Check continuity of
noise filter board
Check continuity of
power supply cord
No
Continuity
No
Continuity
No
Continuity
Normal
Defective
magnetron
Defective line
filter board
Defective touch
control circuit
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.
Replace
Replace
Adjust
CHECK RESULT CAUSE REMEDY
Turn table
motor and
oven lamp do
not turn on
Check continuity of
primary interlock switch
Check continuity of
secondary interlock and
D.O.M. switches
Check D.C. voltage
being supplied to
RELAY (RY2) coil
No
Continuity
No
Continuity
15 VDC
of primary
interlock
switch
of secondary
interlock and
D.O.M. switch
touch control
circuit
RELAY
(RY2) or open
relay coil
replace
replace
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(
CONDITION
Continuity
0 Ω
or
No
Continuity
No
Continuity
0 V
Approx
15 VDC
Defective
high voltage
Defective
high voltage
Defective
magnetron
Defective
magnetron
Defective
high voltage
Defective
high voltage
Defective
Faulty
contacts or
Replace
Replace
Replace
Replace
Replace
Replace
Replace
Replace
TROUBLE 3 )
TROUBLE SHOOTING GUIDE
No microwave oscillation even though fan motor rotates.
No microwave
oscillation
Check continuity of high
Replace high voltage fuse
Check continuity of high
terminals with wires
Check continuity of high
forward and backward
Connect megger leads to
magnetron terminal and
CHECK RESULT
No Continuity
voltage fuse
voltage capacitor
removed
Continuity in
voltage rectifier in
direction with DC
megger
magnetron body
CAUSE
Continuity
transformer
backward
direction
rectifier
REMEDY
Check resistance of
primary and secondary
coil of high voltage
transformer
Check continuity of
magnetron with wires
removed
Check continuity of
filament terminal of high
voltage transformer
Check D.C. voltage
being supplied to
RELAY (RY1) coil
¡Ä
transformer
transformer
touch control
circuit
RELAY
(RY1) or open
relay coil
21
Page 23
TROUBLE SHOOTING GUIDE
CONDITION
Replace
control box
sub-assembly
Replace the
Malfunction
( TROUBLE 4 ) The following visual conditions 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.
Combi Timer/g
M/W Def.
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.
Grill
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 noticeably too fast while cooking.
10. Display does not show the time of day when clear 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.
CHECK RESULT CAUSE REMEDY
Display does
not show
programming
at all, even if
keyboard is
touched.
membrane keyboard
Check each pad for
continuity of the
for the following
keyboard check
procedure
Normal
of touch
control circuit
of control box
sub-assembly
Abnormal
Malfunction of
the membrane
keyboard
membrane
keyboard
NOTE
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.
22
Page 24
MEASUREMENT AND TEST
1. MEASUREMENT OF THE MICROWAVE POWER OUTPUT
Microwave output power can be checked by indirectly measuring 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 1000 ± 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). It 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 heat-up 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 ¡âT
¢Ñ ¡â
T is difference between initial and ending temperature.
¢Ñ
t is the heating time.
The power measured should be B (Refer to SPECIFICATIONS) W ± 10.0 %.
/t
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
*
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
± 2°C (68 ± 3.6 °F)
23
Page 25
MEASUREMENT AND TEST
2. MICROWAVE RADIATION TEST
CAUTION
1. Make sure to check the microwave leakage before and after repair of adjustment.
2. Always start measuring of an unknown field to assure safety for operating personnel from microwave energy.
3. Do not place your hands into any suspected microwave radiation field unless the safe density level is known.
4. 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.
24
Page 26
MEASUREMENT AND TEST
3. COMPONENT TEST PROCEDURE
¢º
High voltage is present at the high voltage terminal of the high voltage transformer during any cooking cycle.
¢º
It is neither necessary nor advisable to attempt measurement of the high voltage.
¢º 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. 100 §Ù±10%
Filament winding ... Approx. 0
Primary winding ... Approx. 1
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 10M
3) A shorted capacitor will show continuous continuity.
4) An open capacitor will show constant 10M
5) Resistance between each terminal and chassis should be infinite.
§Ù
§Ù
§Ù
§Ù
once the capacitor charged.
.
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
§Ù
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
§Ù
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.
25
Page 27
WIRING DIAGRAM
26
Page 28
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: 220V / Frequency: 60Hz
Terminal Voltage LOAD NO LOAD
4 - 7 AC 12.6 V AC 14.7 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
¡¾
5% of nominal voltage.
2. Voltage Check
- Key check point
NO CHECK POINT REMARK
1 IC1 PIN 2,21,30,34 -5VDC
2 IC1 PIN 35
T : 16.67ms(60Hz)
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.
27
Page 29
PRINTED CIRCUIT BOARD
MP1
MP2
Measure Point
28
Page 30
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. ¡æ refer to Circuit Diagram ( Point 3)
- Check method
PRINTED CIRCUIT BOARD
STATE
2) When touching
RELAY 2
RELAY 2
START
POINT
ON - 5VDC GND
OFF GND - 12VDC
pad, oven lamp turns on.
A B
Fan motor and turntable rotate and cook indicator in display comes on.
*
Cause :
RELAY 1
does not operate. ¡æ refer to Circuit Diagram ( Point 2 )
- Check method
STATE
RELAY 1
RELAY 1
POINT
ON -5VDC GND
OFF GND -12VDC
A B
4. When there is no grill oscillation.
*
Cause :RELAY3 does not operate
¡æ
refer to circuit Diagram (point 6)
- Check method
POINT
STATE
RELAY3 ON -5VDC GND
RELAY3 OFF GND -12VDC
A B
5. When the door is opened during operation, the count down timer does not stop.
¡æ
refer to Circuit Diagram( Point 1 )
- Check method
POINT
STATE
1) DOOR OPEN OPEN -5VDC
2) DOOR CLOSED CLOSE GND
CHECK NO METHOD REMEDY
1
Check the stage(ON,OFF) of the door open monitor switch by resistance
measurement.
A B
Replace door open monitor switch.
6. When the digital clock does not operate properly.
¡æ
refer to Circuit Diagram( Point 5 )
POINT WAVE FORM
A T: 16.67 ms(60Hz)
¡Ø
If clock does not keep exact time, you must check resistor R15,16, zener diodeZD1.
29
Page 31
PRINTED CIRCUIT BOARD
2. P.C.B. CIRCUIT DIAGRAM
30
Page 32
PRINTED CIRCUIT BOARD
3. P.C.B. LOCATION NO
(1) KOG-370A
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 16V RSS 100uF CEXF1C101V 1
4 CAPACITOR ELEC EC2 25V RSS 1000uF CEXF1E102V 1
5 CONNECTOR WAFER CN1 YW396-02AV 3519150520 1
6 CONNECTOR WAFER CN2 YW396-05AV 3519150510 1
7 CONNECTOR WAFER CN3 FCZ254-11 441M367160 1
8 DIODE RECTIFY D1~6,8~12 1N4148 DZN4148--- 11
9 DIODE RECTIFY D13,14 1N4002A DZN4002A-- 2
10 DIODE ZENER ZD1 MTZ 5.1VB 1/2W DZTZ5R1B-- 1
11 DIODE ZENER ZD2 MTZ 3.9VB 1/2W DZTZ3R9B-- 1
12 LED DISPLAY DP1 DDG-631H DDDG631H-- 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 100 5% RD-AZ101J- 1
19 RESISTOR R15~17 1/6W 10K 5% RD-AZ103J- 3
20 RESISTOR R18 1/6W 1M 5% RD-AZ105J- 1
21 RESISTOR R19 1/4W 51 5% RD-4Z510J- 1
22 REGULATOR VL1 MC7905C 1MC7905C-- 1
23 TRANSISTOR Q1~5,8~11 KRA-102M TZRA102M-- 9
24 TRANSISTOR Q6 KTA-1270Y TZTA1270Y- 1
25 TRANS POWER LVT1 DMR-631FS 5EPV035303 1
26 WIRE COPPER J1-J21 1/0.52 TIN COATING 85801052GY 21
27 WIRE COPPER SJ4 1/0.52 TIN COATING 85801052GY 1
28 IC MICOM IC1 TMP47C440BN-NF94 13GS371GH0 1
29 RESONATOR CERA CR1 KBR-4.0MSTF 5PKBR40MKS 1
30 SW RELAY RY1, RY3 G5G-1A DC12V 5SC0101121 2
31 SW RELAY RY2 G5B-1 DC12V 5SC0101110 1
32 CAPACITOR CERA C6 102 50V Z AXIAL CCZB1H102K 1
33 CAPACITOR CERA C1~5,C7 104 50V Z AXIAL CCZF1H104Z 6
31
Page 33
PRINTED CIRCUIT BOARD
(2) KOG-390A
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 16V RSS 100uF CEXF1C101V 1
4 CAPACITOR ELEC EC2 25V RSS 1000uF CEXF1E102V 1
5 CONNECTOR WAFER CN1 YW396-02AV 3519150520 1
6 CONNECTOR WAFER CN2 YW396-05AV 3519150510 1
7 CONNECTOR WAFER CN3 FCZ254-11 441M367160 1
8 DIODE RECTIFY D1~6,8~12 1N4148 DZN4148--- 11
9 DIODE RECTIFY D13,14 1N4002A DZN4002A-- 2
10 DIODE ZENER ZD1 MTZ 5.1VB 1/2W DZTZ5R1B-- 1
11 DIODE ZENER ZD2 MTZ 3.9VB 1/2W DZTZ3R9B-- 1
12 LED DISPLAY DP1 DDG-631H DDDG631H-- 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 100 5% RD-AZ101J- 1
19 RESISTOR R15~17 1/6W 10K 5% RD-AZ103J- 3
20 RESISTOR R18 1/6W 1M 5% RD-AZ105J- 1
21 RESISTOR R19 1/4W 51 5% RD-4Z510J- 1
22 REGULATOR VL1 MC7905C 1MC7905C-- 1
23 TRANSISTOR Q1~5,8~11 KRA-102M TZRA102M-- 9
24 TRANSISTOR Q6 KTA-1270Y TZTA1270Y- 1
25 TRANS POWER LVT1 DMR-631FS 5EPV035303 1
26 WIRE COPPER J1-J21 1/0.52 TIN COATING 85801052GY 21
27 WIRE COPPER SJ1, SJ4 1/0.52 TIN COATING 85801052GY 2
28 IC MICOM IC1 TMP47C440BN-NF94 13GS371GH0 1
29 RESONATOR CERA CR1 KBR-4.0MSTF 5PKBR40MKS 1
30 SW RELAY RY1, RY3 G5G-1A DC12V 5SC0101121 2
31 SW RELAY RY2 G5B-1 DC12V 5SC0101110 1
32 CAPACITOR CERA C6 102 50V Z AXIAL CCZB1H102K 1
33 CAPACITOR CERA C1~5,C7 104 50V Z AXIAL CCZF1H104Z 6
32
Page 34
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
33
Page 35
EXPLODED VIEW AND PARTS LIST
(1) KOG-370A
R
- PART RECOMENDED FOR STOCK
REF NO PART CODE PART NAME DESCRIPTION Q'TY
A00
B00
C00
Refer to disassembly and assembly
Refer to disassembly and assembly
Refer to disassembly and assembly
DOOR AS Refer to disassembly and assembly 1
CONTROL PANEL AS Refer to disassembly and assembly 1
INSULATOR HEATER AS Refer to disassembly and assembly
F01 3510801310 CABINET PCM T0.6 GE 1
F02 7112401011 TAPPING SCREW T1 TRS 4*10 MFZN 3
F03 3516109010 CAVITY WELD AS CAVITY WELD AS 1
3516109610 CAVITY JOINT AS CAVITY JOINT AS 1
F04 7S627W50X1 NUT HEX NUT FLANGE M5X0.8P MFZN 2
F05 7122401211 SCREW TAPPING T2S TRS 4*12 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 4*12 MFZN 1
F09 7112401011 SCREW TAPPING T1 TRS 4*10 MFZN 2
F10 35113A5CNJ5 CORD POWER AS 3X1.5 40X40 120-RTML 1
F11 4413A90012 CLAMP POWER CORD NYLON66 1
F12 7122401211 SCREW TAPPING T2S TRS 4*12 MFZN 1
F13 7112401011 SCREW TAPPING T1 TRS 4X10 MFZN 1
F14 7S627W50X1 NUT HEX NUT FLANGE M5X0.8P MFZN 1
F15 7121403011 SCREW TAPPING T2S PAN 4X30 MFZN 2
F16 3963324300 MOTOR SHADED POLE 220V 25W MW10GA-M01 1
F17 3512517000 GUIDE WIND PP 1
F18 3511800300 FAN PP+30%GLASS 1
F19 3518002200 MAGNETRON 2M218H(MF)I 1
F20 3516004000 SPECIAL SCREW T2 BOLT FLANGE 5X12 DACRO 1
F21 7272400811 TAPTITE SCREW TT3 TRS 4*8 MFZN 1
F22 3513003200 HOLDER HV CAPACITOR SECC T0.6 1
F23 3518301900 CAPACITOR HV 2100VAC 0.84uF #187 1
F24 3518400400 DIODE HV HVR-1X-3AB 12KV #187 1
F25 3518113900 TRANS HV DY-N80P0-63T 1
F26 3516003700 SPECIAL SCREW TT3 HEX 4X8 FLG MFZN 4
F27 3510311700 BASE SBHG T0.8 1
F28 7112401011 SCREW TAPPING T1 TRS 4*10 MFZN 5
F29 3512100900 FOOT PP DASF-130 2
F30 7272400811 TAPTITE SCREW TT3 TRS 4X8 MFZN 1
F31 3515201101 STOPPER HINGE *U SCP-1 T2.5 1
F32 4415A17352 SW MICRO VP-533A-OF SPNO #187 200G 1
R
R
R
R
R
R
R
34
Page 36
EXPLODED VIEW AND PARTS LIST
REF NO PART CODE PART NAME DESCRIPTION Q'TY
F33 4415A66910 SW MICRO VP-531A-OF/SZM-V16-FA-61 1
F34 4415A17352 SW MICRO VP-533A-OF SPNO #187 200G 2
F35 3513702600 LEVER LOCK POM 1
F36 3513811700 LOCK POM 1
F37 3513601600 LAMP BL 240V 25W T25 C7A H187 1
F38 7121400611 SCREW TAPPING T2S PAN 4X6 MFZN 1
F39 3966310100 MOTOR SYNCRO 220V 2.5W GM-16-24FD12 1
3966310110 MOTOR SYNCRO 220V 2.5W M2LJ49ZT52 1
F40 3518905300 THERMOSTAT OFF:75 ON:65 H #187 NB 1
F41 3513003400 HOLDER THERMOSTAT PBT 1
F42 7272400811 SCREW TAPTITE TT3 TRS 4X8 MFZN 1
F43 4078502031 BUTTON LOCKING PP HONAM A353 2
F44 3511405100 COVER WAVE GUIDE MICA T0.35 1
F45 3517400620 COUPLER XAREC 1
F46 3514700710 ROLLER TEFLON 3
F47 3512517300 GUIDE ROLLER PP 5113MF6 A353B 1
F48 3517203600 TRAY GLASS 1
F49 3517206900 TRAY RACK AS KOG-37150S 110MM 1
R
R
R
R
R
35
Page 37
EXPLODED VIEW AND PARTS LIST
(2) KOG-390A
R
- PART RECOMENDED FOR STOCK
REF NO PART CODE PART NAME DESCRIPTION Q'TY
A00
B00
Refer to disassembly and assembly
Refer to disassembly and assembly
DOOR AS Refer to disassembly and assembly 1
CONTROL PANEL AS Refer to disassembly and assembly 1
C00 3513302710 INSULATOR HEATER AS Refer to disassembly and assembly 1
F01 3510801400 CABINET PCM T0.6 1
F02 7112401011 TAPPING SCREW T1 TRS 4*10 MFZN 3
F03 3516109210 CAVITY WELD AS CAVITY WELD AS 1
3516109710 CAVITY JOINT AS CAVITY JOINT AS 1
F04 7S627W50X1 NUT HEX NUT FLANGE M5X0.8P MFZN 2
F05 7122401211 SCREW TAPPING T2S TRS 4*12 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 4*12 MFZN 1
F09 7112401011 SCREW TAPPING T1 TRS 4*10 MFZN 2
F10 35113ACNJ5 CORD POWER AS 3X1.5 40X40 120-RTML 1
F11 4413A90012 CLAMP POWER CORD NYLON66 1
F12 7122401211 SCREW TAPPING T2S TRS 4*12 MFZN 1
F13 7112401011 SCREW TAPPING T1 TRS 4X10 MFZN 1
F14 7S627W50X1 NUT HEX NUT FLANGE M5X0.8P MFZN 1
F15 7121403011 SCREW TAPPING T2S PAN 4X30 MFZN 2
F16 3963324300 MOTOR SHADED POLE 220V 25W MW10GA-M01 1
F17 3512517000 GUIDE WIND PP 1
F18 3511800300 FAN PP+30%GLASS 1
F19 3518002200 MAGNETRON 2M218H(MF)I 1
F20 3516004000 SPECIAL SCREW T2 BOLT FLANGE 5X12 DACRO 1
F21 7272400811 TAPTITE SCREW TT3 TRS 4*8 MFZN 1
F22 3513003200 HOLDER HV CAPACITOR SECC T0.6 1
F23 3518301900 CAPACITOR HV 2100VAC 0.84uF #187 1
F24 3518400400 DIODE HV HVR-1X-3AB 12KV #187 1
F25 3518115600 TRANS HV DW-N90P0-86T B 1
F26 3516003700 SPECIAL SCREW TT3 HEX 4X8 FLG MFZN 4
F27 3510311900 BASE SBHG T0.8 1
F28 7112401011 SCREW TAPPING T1 TRS 4*10 MFZN 5
F29 3512100900 FOOT PP DASF-130 2
F30 7272400811 TAPTITE SCREW TT3 TRS 4X8 MFZN 1
F31 3515201101 STOPPER HINGE *U SCP-1 T2.5 1
F32 4415A17352 SW MICRO VP-533A-OF SPNO #187 200G 1
R
R
R
R
R
R
R
36
Page 38
EXPLODED VIEW AND PARTS LIST
REF NO PART CODE PART NAME DESCRIPTION Q'TY
F33 4415A66910 SW MICRO VP-531A-OF/SZM-V16-FA-61 1
F34 4415A17352 SW MICRO VP-533A-OF SPNO #187 200G 2
F35 3513702600 LEVER LOCK POM 1
F36 3513811700 LOCK POM 1
F37 3513601600 LAMP BL 240V 25W T25 C7A H187 1
F38 7121400611 SCREW TAPPING T2S PAN 4X6 MFZN 1
F39 3966310100 MOTOR SYNCRO 220V 2.5W GM-16-24FD12 1
3966310110 MOTOR SYNCRO 220V 2.5W M2LJ49ZT52 1
F40 3518905300 THERMOSTAT OFF:75 ON:65 H #187 NB 1
F41 3513003400 HOLDER THERMOSTAT PBT 1
F42 7272400811 SCREW TAPTITE TT3 TRS 4X8 MFZN 1
F43 4078502031 BUTTON LOCKING PP HONAM A353 2
F44 3511405100 COVER WAVE GUIDE MICA T0.35 1
F45 4418D10032 COUPLER PPS 1
F46 3514700900 ROLLER TEFLON 3
F47 3512509200 GUIDE ROLLER PP 1
F48 3517203500 TRAY GLASS 1
F49 3517206900 TRAY RACK AS KOG-37150S 110MM 1
R
R
R
R
R
37
Page 39
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 : 032) 510-7630
TEL : 032) 510-7628
PRINTED DATE : OCT. 1999
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