Daewoo KOR-636T, KOR-636T1S, KOR-866T Service Manual

AFET Y AND PRE CAUTIONS

1. FOR SAFE OPERATION

Dam age that allows the microwave energy (that cooks or heats the food) to escape will res ult in poor cooking and m ay cause
serious bodily injury to the operator.
IF ANY OF THE FOLLOWING CONDITION S EXIST, OPERATOR MUST NO T USE THE APPLIANCE.
(Only a trained service personnel should m ake 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 microw ave oven has concealed switches
to make sure the power is turned off w hen the door is opened. D o 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 assem bler,
(b) repair the unit at no cost to the ow ner,
(c) attempt to ascertain the cause of the excessive leakage,
(d) tell the ow ner 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 im m ediately.

IMPORTA NT

The wire in this m ains lead coloured in accordance w ith the following code.
Green-and-yellow : Earth

Blue : Neutral
Brown : Live

As the colours of the wires in the manins lead of this appliance m ay not correspond with the coloured m arkings
identifying the term inals in your plug, proceed as follows.
The wire which is coloured green-and-yellow m ust be connected to the term ianl in the plug which is marked with the
letter ‘E’, earth symbol or coloured green-and-yellow.
The wire which is coloured blue m ust be connected to the terminal which is marked with the letter ‘N ’ or
coloured black.
The wire which is coloured brown m ust 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 KOR-636T KOR-866T
POW ER SU PPLY 230V-50Hz, SINGLE PH ASE W ITH EARTHING

MICROW AVE 1200W 1350W
POW ER
CONSUMPTION

MICROWAVE ENERGY OUTPUT 850W 950W
MICROWAVE FREQUENCY 2450MHz
OUTSIDE DIMENSIONS (W X H X D) 465 x 279 x 370mm (18.3 x 11.0 x 14.6 in.) 495 x 294 x 403mm (19.5 x 11.6 x 15.9 in.)
CAVIT Y DIMENS IONS (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 W E IGHT APPRO X . 13.5Kg ( 30.9lbs.) APPRO X. 15Kg ( 33.1lbs.)
TIMER 60min
FUNCTION SELECTIONS MICROWAVE
POW E R SE LECTIONS 6 LEVELS

GRILL

COMBINATION

CAVIT Y VOLUM E 0.7 C u.Ft. 0.9 C u.Ft.

SPECIFICATIONS ARE SUBJECT TO CHANGE WITHOUT NOTICE.

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EXTERNAL VIEW

1. OUTER DIMENSION (KOR-636T/KOR-86 6T)

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2. FEATURE DIAGRAM

EXTERNAL VIEW

1. DOOR SEAL

Door seal m a intains the microwave within the oven cavity and prevents microwave leakage.

2. DOOR HOOK

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

3. DOOR SCREEN

Allows view ing of food. Microwave cannot pass through perforations in screen.

4. SPATTER SHIELD

Protects the microwave outlet from splashes of cooking foods.

5. OVEN LAMP

Automatically turns on during oven operating.

6. SAFETY INTERLO CK SYSTEM

7. CONTROL PANEL

8. GLASS COOKING TRAY

Made of special heat resistant glass. The tray must always be in proper position before operating. Do not cook food
directly on the tray..

9. OVEN FRONT PLATE

10. COUPLER

This fits over the shaft in the center of the ovens cavity floor. This is to remain in the oven for all cooking.

11. ROLLER GUIDE

Supports the glass cooking tray.

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EXTERNAL VIEW

3. CONTROL PANEL

1. Disp lay -

2. Clock -

3. Start/Easy Cook -

4. Sto p/Clear -

5. Auto Cook -

6. Knob -

7. Knob -

Cooking tim e, power level, indicators and present time are displayed.

Used to set clock.

Used to stop the operation or to delete the cooking data.
Used to cook using a program.

Turn to set the cooking m enu and select a m icrowave power level.

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)

Used to start operation, also for easy start (each press adds 30 seconds easy cooking time).

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INSTALLATION

1. Stead y, 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 an d 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 an d radio interference may result if the o ven is located close to a TV, radio, antenna or feeder and so on .
Positio n 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 w hen choosing a place to position it, or the insulation might be adversely
affected and breakdowns occur.

5. Power supply

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Check your local pow er source.
This m icrowave oven requires a current of approximately 6 amperes, 230 Volts, 50 Hz.

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Power supply cord is about 0.8 meters long.

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The voltage used must be the same as specified on this oven. U sing a higher voltage may result in a fire or other accident

causing oven damage. Using low voltage will ca u s e s lo w c oo k in g . We are n o t re sponsible for damage resulting from use
of this oven with a voltage of ampere fuse other than those specified.

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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 DAEWO O and must be installed by a Qualified Person.

6. Examine the oven after unpacking for any damage such as:

A m isaligned door, broken door or a dent in cavity.
If any of the above are visible, DO NOT INSTALL, and notify dealer imm ediately.

7. Do not o pe ra te th e o v e n if it is c o ld e r t h an ro om te mp e r a tu re

(This m ay 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 ac cep t t h e p lu g o n th e 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 F U NCTIONS

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.
The oven will automatically shut off. To restart the oven, close the door and then touch START.

6. E ach time a button is touched, a BEEP will sound to acknowledge the touch.

7. The display will show :0 when the oven is plugged in.

8. Time clock returns to the present time when the cooking tim e ends.

9. W hen the S TOP/CLEAR button 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 button once more. If the oven door is opened
during the oven operation, all inform ation is retained.

10. If the START button 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.

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

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DISASSEMB LY A ND ASSEMBLY

Cautions to be observed when trouble shooting

Unlike many other appliances, the microwave oven is high-voltage, high-current equipm ent.
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 wear 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 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 has stopped an 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 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

W hen servicing the appliance, take a care when touching or replacing high potential parts because of electrical shock
or exposing microwave. These parts are as follows - HV Transform er, Magnetron, HV Capacitor, HV Diode. HV Fuse.

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D ISASSE MBLY AN D A SSE M B LY

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.

D ISASSEMBLY AND ASSEMBLY

(1) KO R-636T 1S

REF. NO PA RT CODE PART NAME DESCRIPTION QTY REMARK

A01 3512203830 FRAME DOOR ABS 1
A02 3517005610 BARRIER-SCREEN *0 PMMA 1.5t 1
A03 3515306500 SUPPOTER BARR-S *0 ABS 1
A04 3511603800 DECO RATOR D OOR ABS 1
A05 3511706100 DOOR PAINTING AS KOR -61150S 1
A06 3517002800 BARRIER-SCREEN *1 KOR-61150S PE 0.1t 1
A07 3515204110 STOPPER HINGE *T AS KOR-636T1S SCP T2.6 1
A08 3515101310 SPRING HOOK HSW-3 1
A09 3513100730 HOOK KOR-6325 POM 1
A10 7122401211 SCREW TAPPING T2S TRS 4X12 MFZN 1
A11 3512300200 GASKET DO OR KOR-61150S PP 1

(2) KO R-866T 1S

REF. NO PA RT CODE PART NAME DESCRIPTION QTY REMARK

A01 3512204130 FRAM E DO O R ABS 1
A02 3517005710 BARRIER-SCREEN *0 PMMA 1.5t 1
A03 3515306600 SUPPOTER BARR -S *0 ABS 1
A04 3511604000 DECORATOR DO OR ABS 1
A05 3511711800 DOOR PAIN TING AS KO R-866T1S 1
A06 3517006000 BARRIER-SCREEN *I K OR -866T1S PE 0.1t 1
A07 3515204110 STOPPER HINGE *T AS KOR-636T1S SCP T2.6 1
A08 3515101310 SPRING HOO K HSW-3 1
A09 3513100730 HOOK KOR-6325 POM 1
A10 7122401211 SCREW TAPPING T2S TRS 4X12 MFZN 1
A11 3512302000 GASKET DOOR KOR--86671S PP 1

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