Daewoo Electronics Kor 63D70S Users Manual

KOR-63F70S to the manual 1d502bfa-b4b0-4e81-9432-b16133135306

2015-02-02

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S/M No. : R63D79S002

Service Manual
Microwave Oven
Model: KOR-63D79S
KOR-63D70S
KOR-63F79S
KOR-63F70S

✔ 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 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 ........................................................................................................................................4
INSTALLATION ...................................................................................................................................................................5
OPERATIONS AND FUNCTIONS .......................................................................................................................................6
DISASSEMBLY AND ASSEMBLY......................................................................................................................................7
INTERLOCK MECHANISM AND ADJUSTMENT .............................................................................................................13
TROUBLE SHOOTING GUIDE .........................................................................................................................................14
MEASUREMENT AND TEST ............................................................................................................................................16
1. MEASUREMENT OF THE MICROWAVE POWER OUTPUT ........................................................................16
2. MICROWAVE RADIATION TEST ...................................................................................................................17
3. COMPONENT TEST PROCEDURE ...............................................................................................................18
WIRING DIAGRAM ............................................................................................................................................................19
EXPLODED VIEW AND PARTS LIST...............................................................................................................................20
1. DOOR ASSEMBLY .........................................................................................................................................20
2. CONTROL PANEL ASSEMBLY ......................................................................................................................20
3. TOTAL ASSEMBLY.........................................................................................................................................20

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 and CDRH immediately.

IMPORTANT
The wire in this mains lead coloured in accordance with the following code.
Green-and-yellow : Each
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 terminal 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.

SPECIFICATIONS
MODEL

KOR-63D79S

POWER SUPPLY
POWER
CONSUMPTION

KOR-63D70S

230V~50Hz, SINGLE PHASE WITH GROUNDING
MICROWAVE

1000W

1,200W

700W

800W

GRILL
COMBINATION

MICROWAVE ENERGY OUTPUT
MICROWAVE FREQUENCY

2450MHz

OUTSIDE DIMENSIONS (W x H x D)

465 x 279 x 364 mm (18.3 x 11.0 x 14.4 in)

CAVITY DIMENSIONS (W x H x D)

290 x 220 x 306 mm (11.4 x 8.7 x 12.0 in)

NET WEIGHT

APPROX. 13kg (28.7 Ibs.)

TIMER

35 MIN. DUAL SPEED

FUNCTION SELECTIONS

MICROWAVE

POWER SELECTIONS

7 LEVELS

CAVITY VOLUME

0.7 Cu. Ft.

* SPECIFICATIONS ARE SUBJECT TO CHANGE WITHOUT NOTICE.

MODEL

KOR-63F79S

POWER SUPPLY
POWER
CONSUMPTION

KOR-63F70S

230V~50Hz, SINGLE PHASE WITH GROUNDING
MICROWAVE

1000W

1,200W

700W

800W

GRILL
COMBINATION

MICROWAVE ENERGY OUTPUT
MICROWAVE FREQUENCY

2450MHz

OUTSIDE DIMENSIONS (W x H x D)

465 x 279 x 364 mm (18.3 x 11.0 x 14.4 in)

CAVITY DIMENSIONS (W x H x D)

290 x 220 x 306 mm (11.4 x 8.7 x 12.0 in)

NET WEIGHT

APPROX. 13kg (28.7 Ibs.)

TIMER

35 MIN. DUAL SPEED

FUNCTION SELECTIONS

MICROWAVE

POWER SELECTIONS

7 LEVELS

CAVITY VOLUME

0.7 Cu. Ft.

* SPECIFICATIONS ARE SUBJECT TO CHANGE WITHOUT NOTICE.

EXTERNAL VIEW
1. OUTER DIMENSION

2. FEATURE DIAGRAM

1. SAFETY INTERLOCK SYSTEM

7. ROLLER GUIDE
This must always be used for cooking together with the
glass cooking tray.

2. DOORVIEWING SCREEN
Allos viewing of food. The screen is designed so that
light can pass through, but not the microwave.

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.

3. DOOR HOOK
When the door is closed, it will automatically lock shut.
If door is opened while oven is operating, magnetron
tube will immediately stop operating.

9. KNOB V.P.C.
Used in setting cooking time for all functions.

4. OVEN CAVITY

10. KNOB TIMER
Used in setting cooking time for all functions.

5. DOOR SEAL
Door seal maintains the microwave within the oven cavity and prevents microwave leakage.

11. DOOR RELEASE BUTTONBy pushing this button the latch system cut off all circuits and stops the oven before the door is opened.

6. GLASS COOKING TRAY
Made of special heat resistant glass. Food in a proper
receptacle is placed on this tray for cooking.

INSTALLATION
1. Steady, flat location.
This microwave oven should be set on a steady, flat surface.

2. Leave space behind and side.
All air vents should be kept a clearance. If all vents are covered during operation, the oven may be overheated
and, eventually, cause oven 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.

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 6 amperes, 230 Volts, 50 Hz.
• Power supply cord is about 0.8 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 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 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 plut, 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.

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. Choose cooking power level by setting V.P.C knob to the desired
position. Refer to cookbook for recommended power levels.
5. Determine cooking time. Consult cookbook for recipe timing.
Oven light turns on and cooling fan starts to operate. Microwave
cooking starts.
6. You may open the door while the oven is operating. As soon as
the door is opened, the safety mechanisms stop the generation of
microwave power and the operation of cooking timer.
If you wish to change the time during cooking, simply adjust the
timer to the desired time.
7. When the timer reaches zero, a bell will ring and the unit will turn
off. Oven light turns off. If additional cooking time is needed and
the door is closed, the oven will automatically start when the timer
is reset.

NOTE
1. When setting timer for less than 2 minutes,
tum the timer past 2 minutes and then
return to the correct timer setting.
2. Various clicking noises may be heard
when turning V.P.C knob. This is normal
and does not affect the operation of your
microwave oven.

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

Variable power cooking
ON and OFF cycle time of mechanical V.P.C switch is 30 seconds.
When the V.P.C knob is set to the desired position and timer knob to the desired position, the V.P.C switch has a cycle
(ON/OFF time(sec.)) listed below.

Variable power setting

Approximate Percentage

Power level

Symbol

of Power

HIGH

MAX

100%

MED HIGH

88%

MEDIUM

73%

LOW STAGE

59%

DEFROST

44%

HEAT

26%

GENTLE HEATING

18%

* the above % can be changed within ±6%

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 safe 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 grounding.
Do not operate on a two-wire extension cord.
The microwave oven is designed to be used while earthed.
It is imperative, therefore, to make 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 12A 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.

✔ 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. To remove cabinet
1) Remove three screws on cabinet back.
2) Push the cabinet backward.

2. To remove door assembly
1) Remove two screws 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.

3. To remove door parts.

REF NO.
A01
A02
A03
A04
A05
A06
A07
A08

PART CODE
3512203880
3512205200
3517007300
3515204100
3511705500
3517002800
3512300200
3513100700
351501300

PART NAME
FRAME DOOR
FRAME DOOR
BARRIER-SCREEN *O
STOPPER HINGE *T AS
DOOR WELD ASSY
BARRIER SCREEN *I
GASKET DOOR
HOOK
SPRING HOOK

DESCRIPTION
PP SI83C
PP SI83C
PET T0.125
KOR-63150S
KOR-61150S
PE T0.1
PP
POM
PW-1

Q’TY
REMARK
1
KOR-63D7
1
KOR-63F7
1
1
1
1
1
1
1

(1) Remove the gasket door from door weld as.
(2) Remove the door frame from door weld as.
(3) Remove the stopper hinge top from door weld as.
(4) Remove the spring and the hook.
(5) Remove the barrier screen outer from door frame.
(6) 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 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.

5. To remove control panel parts.

REF NO.

PART CODE

PART NAME

DESCRIPTION

Q’TY

REMARK

B01

3513405510

KNOB VPC

ABS XR-401 H-2938

B02

3516725300

CONTROL-PANEL

ABS SG-0760D SG-175

(KOR-63D7)

3516725350

CONTROL-PANEL

ABS SG-0760D SG-175

(KOR-63F7)

B03

3515101600

SPRING FLAT

SUS 301 T0.5

B04

3517400510

COUPLER VPC KNOB

POM

B05

7122401211

SCREW TAPPING

T2S TRS 4*12 MFZN

B06

3517400400

COUPLER TIMER

POM

B07

3518204300

TIMER

KN35MKD 15U-P

B08

7122401211

SCREW TAPPING

T2S TRS 4*12 MFZN

B09

3513405410

KNOB

ABS XR-401 H-2938

B10

3513702710

LEVER DOOR OPEN

B11

441G430171

SPRING BUTTON

SWP DIA. 0.7

B12

3516906940

BUTTON DOOR OPEN

ABS SG-0760D SG-175

(KOR-63D7)

3516906950

BUTTON DOOR OPEN

ABS SG-0760D SG-175

(KOR-63F7)

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 timer assembly.
4) Remove the timer assembly.
5) Pull out the timer knob from the timer.
6) Pull out the timer coupler from the timer.
7) Remove the screw which secure the V.P.C coupler.
8) Pull out the V.P.C. coupler, V.P.C knob and flat spring from the control panel.
9) Remove door open button and button spring from the control panel.
10) 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.

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.

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 “OFF”
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
1) Loosen the mounting screw.
2) Adjust interlock switch assembly position.
3) Make sure that lock lever moves smoothly after adjustment is completed.
4) Tighten completely the mounting screw.

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

TROUBLE SHOOTING GUIDE
Following the procedure below to check if the oven is defective or not.
1. Check grounding 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.

(TROUBLE 1) Door shut, timer set, but no cooking takes place.

Does the fan motor work when you
shut the door and turn the timer?

YES (Refer to next page)

NO
Does the
fuse blow?

YES

Check continuity of interlock
monitor switch with door shut.

Continuity

Replace primary, secondary interlock
switch and interlock monitor switch.

NO Continuity
Replace fuse and check
continuity of both interlock
switch’s contact and monitor
switch’s contact with door
partially open until monitor
switch contact.
Both continuity
Disconnect one side of the
lead wire connected from
transformer to the high
voltage capacitor, and operate
oven.

Fuse again

If outlet has proper voltage, check
continuity of power supply cord.

Normal

Replace high voltage capacitor.

Replace high voltage transformer

NO Continuity
Replace power supply cord.

Does the fan motor work when you
shut the door and turn the timer?
YES
Does the oven lamp light?
Does the turntable turn?

Replace or repair oven lamp,
turntable motor.

YES
Normal reading
should be
approx. 0Ω

If microwave do not
oscillate, check continuity
of filament of magnetron.

NO
Continuity

Check continuity
filament tap (3.3V)
of high voltage.

No Continuity

Replace high
Voltage transformer

Continuity

Poor continuity

Check continuity
filament tap (3.3V)
of high voltage.

Continuity in
the reverse
direction.

Replace high
Voltage transformer

Continuity
Replace magnetron
Meter with 6V or higher
voltage batteries should
be used to check the normal
direction resistance of
the diode

Check the isolation of filament
winding of high voltage
transformer.

NO Continuity

Replace high voltage
transformer.

Good
Replace magnetron

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 ▲T/t
• ▲T is difference between initial and ending temperature.
• It is the heating time.
The power measured should 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)

B(W)

600

650

700

750

800

850

900

950

1000

1050

1100

2. MICROWAVE RADIATION TEST
WARNING :
Make sure to check the microwave leakage before and after repair of adjustment.
Always start measuring of an unknown field to assure safety for operating personnel from microwave energy.
Do not place your hands into any suspected microwave radiation field unless the safe density level is known.
Care should be taken not to place the eyes in direct line with the source of microwave energy.
Slowly approach the unit under test until the radiometer reads an appreciable microwave leakage from the unit under
the test.

PROCEDURES
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 600cc glass beaker with an inside diameter of approx.
95mm(3.5in.).
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 5cm(2in.)
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.

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. 110Ω±10%
Filament winding....................................Approx. 0Ω
Primary winding .....................................Approx. 1Ω

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 is 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 KΩ 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 0.1Ω 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.

WIRING DIAGRAM

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

PART CODE

A00

3511714420

DOOR AS

KOR-63D59A

3511714450

DOOR AS

KOR-63F59A

3516720620

CONTROL-PANEL AS

KOR-63D79S

3516720630

CONTROL-PANEL AS

KOR-63F79S

F01

3510805000

CABINET

SECC T0.5

F02

7112401011

SCREW TAPPING

T1 TRS 4*10 MFZN

F03

3516109000

CAVITY WELD AS

3516109600

CAVITY JOINT AS

KOR-63150S

F04

7112401011

SCREW TAPPING

T1 TRS 4*10 MFZN

F05

7122401211

SCREW TAPPING

T2S TRS 4*12 MFZN

F06

7122401211

SCREW TAPPING

T2S TRS 4*12 MFZN

F07

7112401011

SCREW TAPPING

T1 TRS 4*10 MFZN

F08

35113AEQ0D

CORD POWER AS

3X0.75 70X70 100-RTML

F09

7112401011

SCREW TAPPING

T1 TRS 4*10 MFZN

F10

7122401211

SCREW TAPPING

T2S TRS 4*12 MFZN

F11

4415D67620

FUSE

250V 12A 65TS

4415D67120

FUSE

250V 12A MDA

F12

3518606200

NOISE-FILTER

DWLF-M12

F13

7121403011

SCREW TAPPING

T2S PAN 4X30 MFZN

F14

3963512310

MOTOR SHADED POLE

230V 20W MW10CA-M02

F15

3512517000

GUIDE WIND

F16

3511800300

FAN

PP+30%GLASS

F17

3518002400

MAGNETRON

2M218J(F)

F18

3516004000

SPECIAL SCREW

T2 BOLT FLANGE 5X12 DACRO

F19

7S422X4081

SCREW SPECIAL

TT2 TRS 4X8 SE MFZN

F20

3513003200

HOLDER HV CAPACITOR

SECC T0.6

F21

3518302200

CAPACITOR HV

2100VAC 0.98µF #187

F22

3518400900

DIODE HV AS

HVR-1X-30B #187

3518401000

DIODE HV AS

ESJC13-12BX #187

B00

PART NAME

DESCRIPTION

Q'TY

PART CODE

PART NAME

DESCRIPTION

F23

3518701100

FUSE HV

5KV 0.55A HV-41A55-02

F24

3518113751

TRANS HV

TM-N70S0-63T(KOR-63D79S/63F79S)

3518113701

TRANS HV

DY-N80S0-63T(KOR-63D70S/63F70S)

F25

3516003700

SPECIAL SCREW

TT3 HEX 4X8 FLG MFZN

F26

3510311700

BASE

SBHG T0.7

F27

7112401011

SCREW TAPPING

T1 TRS 4*10 MFZN

F28

3512100900

FOOT

PP DASF-130

F29

7S422X4081

SCREW SPECIAL

TT2 TRS 4X8 SE MFZN

F30

3515201101

STOPPER HINGE *U

SCP-1 T2.5

F31

4415A17352

SW MICRO

VP-533A-OF SPNO #187 200G

F32

4415A66910

SW MICRO

VP-531A-OF/SZM-V16-FA-61

F33

4415A17352

SW MICRO

VP-533A-OF SPNO #187 200G

F34

3513702600

LEVER LOCK

POM

F35

3513811700

LOCK

POM BLACK (KOR-63F7)

3513811730

LOCK

POM NATURAL (KOR-63D7)

F36

3513601600

LAMP

BL 240V 25W T25 C7A H187

F37

3512714500

HARNESS MAIN

KOR-6315OS

F38

7121400611

SCREW TAPPING

T2S PAN 4X6 MFZN

F39

3966310100

MOTOR SYNCRO

220V 2.5W GM-16-24FD12

F40

3518905300

THERMOSTAT

OFF:75 ON:65 H #187 NB

F41

3513003400

HOLDER THERMOSTAT

PBT

F42

3516003700

SPECIAL SCREW

TT3 HEX 4X8 FLG MFZN

F43

3511406220

COVER WAVE GUIDE

PP J640A

F44

3517400620

COUPLER

XAREC

F45

3514700710

ROLLER

TEFLON

F46

3512517300

GUIDE ROLLER

PP 5113MF6 A353B

F47

3517203600

TRAY

GLASS

F48

7122401211

SCREW TAPPING

T2S TRS 4*12 MFZN

F49

3518570400

SWITCH S/A RELAY

DWSR-1

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”

S/M NO. : R63D79S002

PRINTED DATE: Jun. 2001

Source Exif Data:

File Type                       : PDF
File Type Extension             : pdf
MIME Type                       : application/pdf
PDF Version                     : 1.4
Linearized                      : Yes
Create Date                     : 2001:07:09 15:58:16Z
Modify Date                     : 2003:05:29 13:42:45+09:00
Page Count                      : 24
Creation Date                   : 2001:07:09 15:58:16Z
Producer                        : Acrobat Distiller 4.0 for Macintosh
Mod Date                        : 2003:05:29 13:42:45+09:00
Metadata Date                   : 2003:05:29 13:42:45+09:00

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Daewoo Electronics Kor 63D70S Users Manual

KOR-63F70S to the manual 1d502bfa-b4b0-4e81-9432-b16133135306

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