DAEWOO ELECTRONICS KOR-63050S Manuale utente

Service Manual

Microwave Oven

Model: KOR-63050S

KOR-86050S

KOR-86050N

DAEWOO ELECTRONICS CO., LTD.

S/M No. : R63050S002

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SAFETY AND PRECAUTIONS ........................................................................................................ 2

SPECIFICATIONS ............................................................................................................................ 3

EXTERNAL VIEW ............................................................................................................................ 4

1. OUTER DIMENSION ................................................................................................................... 4

2. FEATURE DIAGRAM ................................................................................................................... 5

INSTALLATION ................................................................................................................................ 6

OPERATIONS AND FUNCTIONS ................................................................................................... 7

DISASSEMBLY AND ASSEMBLY .................................................................................................. 8

INTERLOCK MECHANISM AND ADJUSTMENT ...........................................................................15

TROUBLE SHOOTING GUIDE ........................................................................................................ 16

MEASUREMENT AND TEST ...........................................................................................................18

1. MEASUREMENT OF THE MICROWAVE POWER OUTPUT ..................................................... 18

2. MICROWAVE RADIATION TEST ................................................................................................ 19

3. COMPONENT TEST PROCEDURE ............................................................................................ 20

WIRING DIAGRAM .......................................................................................................................... 21

EXPLODED VIEW AND PARTS LIST ............................................................................................. 22

(a) Do not operate or allow the oven to be operated with the door open.

(b)Make the following safety checks on allovens 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.

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, oradjusted by procedures described in this manualbefore the

oven is released to the owner.

(e)A microwave leakage check to verify compliance with the Federal performance standardshould be performed on

each oven prior to release to the owner.

PRECAUTIONSTOBEOBSERVEDBEFOREANDDURINGSERVICING

TO AVOID POSSIBLE EXPOSURE TO EXCESSIVE MICROWAVE

ENERGY

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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 ovencavity surface should be kept clean.

No grease, soil or spatter should be allowed to build up on these surfacesor inside the oven.

DO NOT ATTEMPT TO OPERATE THIS APPLIANCE WITH THE DOOROPEN. 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 NOTATTEMPT 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 emissioncheck 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,

(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 ofthe wires in the manins lead of this appliance may notcorrespond 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’ or by earth symbolor 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.

This oven is designed for counter-top use only.

NOTE

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SPECIFICATIONS

KOR-6305

KOR-8605

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Specifications are subject to change without notice.

MODEL KOR-63050S

POWER SUPPLY 230V,50Hz, SINGLE PHASE WITH EARTHING

POWER CONSUMPTION MICROWAVE 1200W

GRILL

COMBINATION

MICROWAVE ENERGY OUTPUT 800W

MICROWAVE FREQUENCY 2450MHz

OUTSIDE DIMENSIONS (W X H X D) 465 x 279 x 360 mm (18.3 x 11.0 x 14.2 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. 13 Kg ( 28.7 lbs.)

TIMER 35 min. DUAL SPEED

FUNCTION SELECTIONS MICROWAVE

POWER SELECTIONS 5 LEVELS

CAVITY VOLUME 0.7 Cu.Ft.

MODEL

KOR-86050S KOR-86050N

POWER SUPPLY

230V,50Hz(86050S)/220V,50Hz(86050N),

SINGLE PHASE WITH EARTHING

POWER CONSUMPTION MICROWAVE

1350W 1250W

GRILL

COMBINATION

MICROWAVE ENERGY OUTPUT

900W

MICROWAVE FREQUENCY

2450MHz

OUTSIDE DIMENSIONS (W X H X D)

495 x 294 x 388 mm (19.5 x 11.6 x 15.3 in.)

CAVITY DIMENSIONS (W X H X D)

320 x 244 x 338 mm (12.6 x 9.6 x 13.3 in.)

NET WEIGHT

APPROX.15 Kg ( 33.1 lbs.)

TIMER

35 min.DUAL SPEED

FUNCTION SELECTIONS

MICROWAVE

POWER SELECTIONS

5 LEVELS

CAVITY VOLUME

0.9 Cu.Ft.

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EXTERNAL VIEW

1. OUTER DIMENSION

KOR-6305

KOR-8605

Fig.1 Front view Fig.2 Side view

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EXTERNAL VIEW

2. FEATURE DIAGRAM

1. Safety interlock system

2. Door viewing screen -Allowsviewing offood. Thescreen isdesigned sothat lightcan passthrough,but not the microwave.

3. Door hook -

When the door is closed, it willautomatically shut.Ifthe door is opened while the oven is operating,

the magnetron willimmediately stop operating.

4. Oven cavity

5. Door seal - Door seal maintains the microwave energy within the oven cavity and prevents microwave leakage.

6. Glass cooking tray -Made of special heat resistant glass. Food in a proper receptacle isplaced on this tray for cooking.

7. Roller guide - This must always be used for cooking together withthe glass cooking tray.

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

9. Knob V.P.C - Used to select a microwave power level.

10. Knob timer - Used in setting cooking time for all functions.

11. Door release button -

By pushing this button the latch system cutoff allcircuits and stops the oven before the door is opened

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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 forcounter 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 aspossible.

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 6amperes, 230 Volts, 50 Hz/ 220Volts, 50Hz (KOR-8650N).

•Power supply cord is about 0.8 meterslong.

•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 fordamage resulting from use

of this oven with a voltageof ampere fuse otherthan those specified.

•This appliance is supplied with cable ofspecial type, which, if damaged, must be repaired with cableof 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 iscolder than room temperature

(This may occur during delivery in cold weather.) Allow the oven to become room temperature before operating.

This appliance must be earthed. In theevent of an electrical short circuit, earthing reduces the risk of the electric shockby

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 mustbe pluggedinto an outlet thatis 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 usean extension cord.

EARTHING INSTRUCTIONS

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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 glasstray. The glass tray must always

be in place during cooking.

3. Close the door securely.

4. Choose cooking power levelby 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 doorwhile the oven is operating.

As soon as the door is opened, the safety mechanims

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.

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 andtimer knob turns to the desired position, the V.P.C switch has a cycle

(ON/OFF time(sec.)) listedbelow.

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6305/8605

Variable power setting ON/OFF time (sec.) Approximate Percentage of Power

MAX (HIGH) 30/0 100 %

610W / 700W (MED HIGH) 23.2/6.8 77 %

440W / 500W (MEDIUM) 16.5/13.5 55 %

260W / 290W (DEFROST) 9.8/20.2 33 %

130W / 150W (WARM) 5/25 17 %

Make sure theoven is properlyinstalled and plugged intothe electrical outlet.

NOTE

1. When setting timerfor lessthan2 minutes, turn 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.

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DISASSEMBLY ANDASSEMBLY

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 resultin an electric shock or possible danger from a short circuit.

You are asked to observethe 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 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 replacementof parts, make sure that the screws are

properly tightened, and all electrical connections are tightened.

6. Do not operate without cabinet.

CAUTION

WARNING

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

When servicing the appliance,need a care oftouching or replacing high potential parts because ofelectrical shock

or exposing microwave.These parts are as follows -HV Transformer, Magnetron,HV Capacitor,HV Diode,HV Fuse.

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DISASSEMBLY ANDASSEMBLY

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 securethe stopper hinge top.

(2) Remove the door assembly fromtop plate of cavity.

(3) Reverse the above for assembly.

3. To remove door parts

KOR-6305

REF.NO PART CODE PART NAME DESCRIPTION Q’TY 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

NOTE

After replacing the door assembly, perform a check of

correct alignmentwith the hinge and cavity front plate.

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