DISASSEMBLY AND ASSEMBLY. Daewoo KOR-868G7S

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 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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1. To remove cabinet

1) Remove three screws on cabinet back.

2) Push the cabinet backward.

2. To remove door assembly

1) Remove one 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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Caution

: In this Service Manual, some parts can be changed for improving, their performance without notice in the parts list. So, if you need the latest parts information,please refer to PPL(Parts Price List) in Service

Information Center (http://svc.dwe.co.kr).

3. To remove door parts.

REF NO.

A01

A02

A03

A04

A05

A06

A07

A08

A09

PART CODE

3512207900

2TE16A27CL

3517008200

3515204100

3511711800

3517006000

3512302000

3513100700

3515101300

PART NAME

FRAME DOOR

DOUBLE TAPE

BARRIER-SCREEN*O

DESCRIPTION

ABS SG-175 SG-0760D

0.16T X 27MM CLEAR 550M

SAN T1.5

STOPPER HINGE*T AS KOR-63150S

DOOR PAINTING AS KOR-866T0S

BARRIER-SCREEN*I

GASKET DOOR

PE 0.1T

PP

HOOK

SPRING HOOK

POM

PW1

1

1

1

1

Q’TY

1

-

1

1

1

REMARK

11

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/cm 2 .

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✔

Caution

: In this Service Manual, some parts can be changed for improving, their performance without notice in the parts list. So, if you need the latest parts information,please refer to PPL(Parts Price List) in Service

Information Center (http://svc.dwe.co.kr).

5. To remove control panel parts.

REF NO.

PART CODE

B01 3516911300

B02

B03

3518522240

PART NAME

BUTTON DOOR OPEN

MEMBRANE

441G430171 SPRING BUTTON

B04

B05

3516729700

3516911100

CONTROL PANEL

BUTTON FUNCTION-A

B06 PKMPMSAQ20 MAIN PCB AS

B07 7122401211 SCREW TAPPING

B08

B09

3516911200

3513703100

BUTTON FUNCTION-B

LEVER DOOR OPEN

DESCRIPTION

ABS SG-175, SG-0760D

KOR-868G7S

SWP DIA 0.7

ABS SG-175 SG-0760D

ABS SG-175 SG-0760D

KOR-868G7S

T2S TRS 4X12 MFZN

ABS SG-175 SG-0760D

PP

1

5

1

1

Q’TY

1

1

1

1

1

REMARK

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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/cm 2 for a fully assembled oven with door normally closed.

Metallic gasket plate

Magnetron antenna

Cooling fin

Filament terminal

<MAGNETRON>

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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.

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