Daewoo KOR-861G0P, KOR-631G0P, KOR-631H0P User Manual

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Page 1

S/M No. : R631G0P001

Service Manual

Microwave Oven

Model: KOR-631G0P

KOR-631H0P KOR-861G0P

KOR-861H0P

✔

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.

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PRECAUTIONS TO B E OBSE RV ED BEFOR E AND DURING SERVICING TO AVOID POSSIBLE EXPOSURE TO EXCES SIVE MICR OWAVE 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.

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.

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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................................................................................................................................... 8

OPERATIONS AND FUNCTIONS....................................................................................................... 9

DISASSEMBLY AND ASSEMBLY...................................................................................................... 10

INTERLOCK MECHANISM AND ADJUSTMENT............................................................................... 17

TROUBLE SHOOTING GUIDE .......... ... ......... ... .................. ... ......... ... ........ ... ... ......... ... ......... ... ........... 18

MEASUREMENT AND TEST...................................................... ......... ................. ......... ......... ........... . 22

1. MEASUREMENT OF THE MICROWAVE POWER OUTPUT ...................................................... 22

2. MICROWAVE RADIATION TEST................................................................................................. 23

3. COMPONENT TEST PROCEDURE............................................................................................. 24

WIRING DIAGRAM.............................................................................................................................. 25

PRINTED CIRCUIT BOARD................................................................................................................ 26

1. CIRCUIT CHECK PROCEDURE .................................................................................................. 26

2. P.C.B. CIRCUIT DIAGRAM........................................................................................................... 29

3. P.C.B. LOCATION NO .................................................................................................................. 30

EXPLODED VIEW AND PARTS LIST................................................................................................. 32

1. DOOR ASSEMBLY....................................................................................................................... 32

2. CONTROL PANEL ASSEMBLY.................................................................................................... 32

3. TOTAL ASSEMBLY....................................................................................................................... 32

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SAFETY AND PRECAUT IONS

1. FOR SAFE OPERATION

Dam age that allows the microwave energy (that cooks or heats the food) to escape will resu lt in poor cooking and may cause serious bodily injury to the operator. IF ANY OF THE FOLLOWING CONDITIO NS EXIST, OPERATOR MUST NOT USE THE APPLIAN CE. (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 im m ediately.

IMPORTA NT

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 w ires in the manins lead of this appliance m ay 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 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 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 m arked with the letter ‘L’ or coloured red.

NOTE

This oven is designed for counter-top use only.

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SPECIFICATIONS

MODEL KOR-631G/H KOR-861G/H POW ER SU PPLY 220V-60Hz, SINGLE PHASE WITH EAR THING

MICROW AVE 1200W 1300W POW ER 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 W E IGHT APPRO X . 13Kg ( 28.7lbs.) APPRO X. 15Kg ( 33.1lbs.) TIMER 59 min. 90 sec. FUNCTION SELECTIONS MICROWAVE POW ER SE LECTIONS 10 LEVELS

GRILL

COMBINATION

CAVITY VOLUM E 0.7 Cu.Ft. 0.9 Cu.Ft.

SPECIFICATIO NS ARE SUBJECT TO CHANGE WITHOUT NOTICE.

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EXTERNAL VIEW

1. OUTER DIMENSION (KOR-631/861)

465/495

Fig.1 Front View

360/388

279/294

Fig.2 Side View

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2. FEATURE DIAGRAM

EXTERNAL VIEW

1. DOOR SEAL

Door seal maintains 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 w ill immediately stop operating.

3. DOOR SCREEN

Allows viewing 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 INTERLOCK SYSTEM

7. CONTROL PANEL

8. GLASS COOKING TRAY

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

9. OVEN FRONT PLATE

10. DOOR OPENING BUTTON

To open the door, push the door opening button. When door is closed, it will autom atically lock shut. If door is opened w hile oven is operating, magnetron tube will imm ediately stop operating.

11. ROLLER GUIDE

Supports the glass cooking tray.

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EXTERNAL VIEW

3. CONTROL PANEL

(1) KOR-631G/861G

1. Time set pad -

2. Display

3. One touch

4. Auto cook

5. More

6. Less

7. Auto Defrost

8. Power

9. Defrost

10. Kitchen Timer

11. Clock

12. Stop/Clear

13. Start/Speedy cook

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

- Used to add time to cooking.

- Us ed to remove ti me from coo k i n g.

- Us ed to se t powe r l e ve l.

- Us ed to d efrost foo d s.(for time)

- Used to set clock .

Used to set the cooking time and the present tim e.

- Used to cook or reheat specific quantities of food.

- Used to cook or reheat.

- Used to defrost foods.(for weight)

- Used as a minute timer, delay cooking, hold setting after cooking.

- Used to stop the oven operation or to delete the cooking data.

- Used to start the oven and also used to set a reheat time.

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(2) KOR-631H/861H

EXTERNAL VIEW

1. Time set pad

2. Display

3. One touch

4. More

5. Less

- Used to add time to cooking.

- Us ed to remove ti me from coo k i n g.

6. Auto Defrost

7. Power

8. Defrost

9. Kitchen Timer

10. Clock

11. Stop/Clear

- Used to set the cooking tim e and the present time.

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

- Used to cook or reheat specific quantities of food.

- Used to defrost foods.(for weight)

- Us ed to se t powe r l e ve l.

- Us ed to d efrost foo d s.(for time)

- Used as a minute timer, delay cooking, hold setting after cooking.

- Used to set clock.

- Used to stop the oven operation or to delete the cooking data.

12. Start/Speedy 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

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Check your local power source. This microwave oven requires a current of approxim ately 6 amperes, 220 Volts, 60 H z.

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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. Using a higher voltage m ay result in a fire or other accident

causing oven damage. Using low voltage will cau s e s lo w c o ok in g . We ar e n o t re sponsible 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 DA EW O 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 n o t o pe rate th e o v e n if it is c old e r th an roo m temp e r a tu r e

(This may occur during delivery in cold weather.) Allow the oven to becom e 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 ce pt 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 D o not use an extension cord.

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OPER ATIO NS AND FU NCTIO NS

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 tim e 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.

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 %

Tw ice P-9 0 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 AN D 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 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

W hen servicing the appliance, need a care of touching or replacing high potential parts because of electrical shock or exposing microw ave. These parts are as follows - HV Transformer, Magnetron, HV Capacitor, HV Diode.

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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 a screw which secure the stopper hinge top.

2) Remove the door assembly from top plate of cavity.

3) Reverse the above for reassembly.

D ISASSEM B LY AND ASSEMBLY

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)

D ISASSE MBL Y AN D A SSE MBLY

3. To remove door parts.

DOOR ASSEMBLY :

3511710300(KOR-631) 3511710700(KOR-861)

(1) KOR-631G/631H

REF. NO PART CODE PART NAME DESCRIPTION QTY REMARK

A01 3512203800 FRAM E DO O R ABS XR -401 H-2938 1 A02 3517003050 BARRIER-SCREE N*O ACRY L 1 A03 3515304610 SUPPO RTER BAR R-S*O PP 1 A04 3515204100 STOPPER HINGE *T AS KOR-63150S 1 A05 3511705500 DOO R W E LD AS KOR-61150S 1 A06 3517002800 BARR IER-SCREEN *I POLYESTER T0.1 1 A07 3512300200 GASKET DOOR PP 1 A08 3513100700 HOO K POM 1 A09 3515101300 SPRING HO O K PW1 1

(2) KOR-861G/861H

REF. NO PART CODE PART NAME DESCRIPTION QTY REMARK

A01 3512204100 FRAM E DO O R ABS XR -401 H-2938 1 A02 3517003150 BARRIER-SCREE N*O ACRY L 1 A03 3515304410 SUPPO RTER BAR R-S*O PP 1 A04 3515204100 STOPPER HINGE *T AS KOR-63150S 1 A05 3511705620 DOO R W E LD AS KOR-81250S 1 A06 3517002900 BARR IER-SCREEN *I POLYESTER T0.1 1 A07 3512300400 GASKET DOOR PP 1 A08 3513100700 HOO K POM 1 A09 3515101300 SPRING HO O K PW1 1

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D ISASSEM B LY 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’. Loosen a screw on stopper hinge top, and then



push the door to contact the door seal to oven front surface. Tighten a screw.

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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.

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NOTE

A small gap may be acceptable if the microwave leakage does not exceed 4mW /cm2.

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✔ Caution:

D ISASSE MBL Y AN D A SSE MBLY

5. To remove control panel parts.

CONT ROL PA NE L ASS EMBL Y :

PKCPSW Z H00(KOR-631G) PKCPSW Z M00(KOR-631H) PKCPSW N K00(KOR-861G) PKCPSW N J00(KOR-861H)

(1) KOR-631G/631H

REF.NO PART CODE PART NAME DESCRIPTION QTY REMARK

B01 3518520900 SWITCH M EM B RAN E

3518520910 KOR-631H0S B02 3516719000 C ONT RO L-PANEL ABS X R-401 H-2938 1 B03 PKMPMSZA00 PCB MAIN AS

B04 7122401211 S CR EW TAPPING B05 3513702700 LEV ER D O OR OP EN ABS XR -401 H-2938 1 B06 441G430171 S PR ING BUTTO N B07 3516906900 BU TTON DO OR O PEN

KOR-631

T2S TRS 4X12 M FZN

SWP DIA0.7 ABS XR-401 H-2938

G0S

H0S

1 4

1 1

(2) KOR-861G/861H

REF.NO PART CODE PART NAME DESCRIPTION QTY REMARK

B01 3518521220 SWITCH M EM B RAN E

3518521230 KOR-861H0S B02 3516720200 C ONT RO L-PANEL ABS X R-401 H-2938 1 B03 PKMPMSNE00 PCB MAIN AS KOR-860A0S 1 B04 7122401211 S CR EW TAPPING B05 3513702700 LEV ER D O OR OP EN ABS XR -401 H-2938 1 B06 441G430171 S PR ING BUTTO N B07 3516906900 BU TTON DO OR O PEN

KOR-861

T2S TRS 4X12 M FZN

SWP DIA0.7 ABS XR-401 H-2938

G0S

1 1

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D ISASSEM B LY 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 m e m brane 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.

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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

for a fully assembled oven with door normally closed.

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D ISASSE MBL Y AN D A SSE MBLY

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.

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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INTER L OCK 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) P rima r y interlock switch

Wh e n the d o or is c l o s ed , the h oo k l o cks t h e oven d o or. If the door i s n ot closed prop erly, th e ov en will n ot o perate . When the door is closed, the hook pushes the button of the microswitch. Then the button of the primary interlock switch bring it under O N con dition.

(2) Secondary interlock switch and in terlock 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 O N condit ion .

ADJUSTMENT

Interl o ck mon itor s wi tch

When the door is closed, the interlock monitor switch should be changed(N O 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) Ad jus tment s tep s

a) Loosen the one mounting screw. b) Adjust interlock switch assembly position. c) Make sure that lock lever m oves smoothly after adjustment is completed. d) Tighten completely one m ounting screw.

NOTE

Microwave emission test should be performed after adjusting interlock mechanism. If the microwave emission exceed 4mW/cm

, readjust interlock mechanism.

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TROUBLE SHOOTING GUIDE

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 ch ec k co ntinuity with the AC plug rem o ve d. To do otherwise may resu lt in a false reading or da mage to you r m e ter.

NOTE

W hen 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.

(TR OUB LE 1)

CONDITION

Fuse blows.

Ove n do es no t ope rate at all : any inpu ts can no t be ac cepted .

CHECK RESULT CAUSE REMEDY

Check continuity of interlock m on itor switch with door closed (COM NC)

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Check continuity of both primary and secondary interlock switch with door colosed

Check continuity of primary interlock sw itch contact with door partially open until interlock monitor switch contact close (COM<->NO )

Continuity

No C ontinuity

Continuity

Malfunction

of interlock

monitor

switch

Malfunction of interlock switch

Shorted contacts of primary interlock switch.

Replace NOTE 1

Check continuity of

primary winding of low

voltage transformer

Disconnect high voltage fuse and operate the unit

0 infinite

Ω

Approx.

150~310

(normal)

Fuse again

blows

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Defective low

voltage

transformer

Defective high

voltage transformer

Replace

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TROUBLE SHOOTING GUIDE

CONDITIO N

Outlet has proper voltage Fuse does not

blow.

CHECK RESULT CAUSE REMEDY

Check continuity of

magn etron

Check continuity of

noise filter board

Check continuity of power supply cord

Continuity

Normal

Defective

magn etron

Defective line

filter board

Open pow er

supply cord

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

Adjust

CONDITIO N

Turn table

m otor and

oven lamp do

not turn on

CHECK RESULT CAUSE REMEDY

Check continuity of

primary interlock switch

Check continuity of

secondary interlock and

D .O .M . sw itche s

Che ck D .C. voltage

being supplied to

RELAY (RY2) coil

Continuity

0 V

Approx. 15 VDC

Malfunction

of primary

interlock

switch

Malfunction of secondary interlock and

D.O.M . switch

Defective

touch control

circuit

Faulty

contacts of

RELAY

(RY2) or open

relay coil

Adjust or

replace

Adjust or

replace

Replace

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TROUBLE SHOOTING GUIDE

(

TROUBLE 3 )

C O NDIT ION

No microwave

oscillation

N o micr o wav e o scilla t ion e ven tho ug h f a n mot o r rot a t es .

CHECK RESULT

Check continuity of high

voltage fuse

Replace high voltage fuse

Check continuity of high

voltage capacito r

te rmin a ls w ith wires

rem ov ed

Check continuity of high

vo lta g e re c tifie r in

forward and backward

direction with DC

megge r

No C ontinuity

Continuity

Continuity in

backward

direction

CAUSE

Defective

high voltage

transformer

Defective

high voltage

rectifier

REMEDY

Replace

Connect megger leads to

magne tron terminal and

magne tron body

Ch eck resistance of

primary and secondary

coil of high voltage

transformer

Check continuity of

magne tron with wires

rem oved

Check continuity of

filament terminal of high

voltage transform er

Ch eck D .C. voltage

being supplied to

RELAY (RY1) coil

Continuity

0 Ω

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Continuity

0 V

Approx

15 VDC

Defective

magnetron

Defective

high voltage

transformer

Defective

magnetron

Defective

high voltage

transformer

Defective

touch control

circuit

Faulty

contacts or

RELAY

(RY1) or open

relay c o il

Replace



Page 22

TROUBLE SHOOTING GUIDE

CONDITIO N

Replace

control box

sub-assembly

Replace the

Malfunction

( TROUBLE 4 )

The following visual conditions indicate a probable defective touch control circuit or m em brane switch

assembly

1. Incomplete segm ents,

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.

2. A distinct change in the diplay are not on w hen they numbers is the display.

3. One or more digits in the diplay 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 w hen the panel is touched.

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 tim e 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 programm ing at all, even if

keyboard is

touched.

Check each pad for

continuity of the

mem brane keyboard

for the following keyboard check

procedure

Normal

Abnormal

of touch control circuit of control box

sub-assembly

Malfunction of

the mem brane

keyboard

membrane

keyborad

NOTE

Before following the particular steps listed above in the trouble shooting guide for the m embrane keyborad’s, failure, please check for the continuity of each wire-harness between the membrane keyboard and P.C.B. assembly.



Page 23

ME ASURE M ENT 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 m icrowave power setting with a load of 1000 ± 5cc of potable water.

2. T h e w a te r is co nta in ed in a cy lin d ric a l b o ro s ilic a te g la s s v e s se l h a v in g a max imu m mate r ia l th ic kn e s s of 3 m m 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 imm ediately 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 tim e 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 betw een the ambient and final water temperature is 5K.

7. The microwave power output P in watts is calculated

from the following form ula:

P = 4187 X T

 

T is difference betw een initial and ending temperature.



t is the heating time.

The power measured should be B (Refer to S PECIFICATIO N S) W ± 10.0 %.



CAUTION

1. Water load should be measured exactly to 1 liters.

2. Input pow er voltage should be exactly specified voltage (Refer to S PEC IFICATION S).

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)



Page 24

MEASUR E MENT AND TEST

2. MICROWAVE RADIATION TEST

CAUTION

1. Make sure to check the microwave leakage before and after repair of adjustment.

2. Always start m easuring of an unknown field to assure safety for operating personnel from microwave energy.

3. Do not place your hands into any suspected m icrowave 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 /cm

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 exhau st 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.



Page 25

MEASUR E MENT AND TEST

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 atte m pt 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 term inals and check continuity.

2) Normal readings should be as follows : Secondary winding ... Approx. 100 ± 10%



once the capacitor charged.

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 norma l capacito r will s ho w cont inu i ty fo r a sh or t t ime, and then indicate 10M

3) A shorted capacitor will show continuous contin uity.

4) An open capacitor will show constant 10M.

5) Resistance between each term inal 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 k



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 filam ent terminals should indicate 0.1



or less.

3) A continuity check between each filam ent 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 fu se 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.



Page 26

WIR ING DIAGRAM









 



Page 27

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: 220 V / Frequency: 60Hz

Terminal Voltage LOAD NO LO AD

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 5% of nominal voltage.

2. Voltage Check

- Key check point

NO CHECK POINT REMARK

1 IC1 PIN 2,21,30,34 -5VDC 2IC1 PIN 35

T : 16.6 7ms (6 0Hz )

3 IC1 PIN 31 OR 32

T : 250 ns( 4M Hz )

- Check method

NO MEASURE POINT WAVE FORM REMEDY REM ARK

1 MP1 DC -5V± 0.25V Replace VL1, EC1 NO LOAD 2 MP2 DC -12V± 2.0V Replace EC2, D12,13,14 NO LO AD

NOTE

Each measure point must be measured with GND points.



Page 28

PRINTED CIRCUIT BOARD

MP1

MP2

Measure Point



Page 29

PRINTED CIRCUIT BOARD

3. When there is no microwave oscillation

1) When touching

pad, oven lamp does not turn on.

START

Fan motor do not rotate, but cook indicator in display comes on.



Cause :

RELAY 2

does not operate.  ref e r to Circuit Di a gr a m ( P oint 3)

- Check method

PO INT STATE

RELAY 2

2) When touching

ON - 5VDC GND

OFF GND - 12VDC

pad, oven lamp turns on.

START

A B

Fan motor and turntable rotate and cook indicator in display comes on.



Cause :

RELAY 1

does not operate.  ref e r to Circuit Di a gr a m ( P oint 2 )

- Check method

P OINT STATE

RELAY 1

O N -5V DC GN D

OFF GND -12VDC

A B

4. When the door is opened during operation, the count down timer does not stop.



refer to Circuit Diagram ( Point 1 )

- Check method

POINT STATE

1) DOOR OPEN OPEN -5VDC

2) DOOR CLOSED CLOSE G ND

CHECK NO METHOD REMEDY

Check the stage(ON,OFF) of the door open monitor switch by resistance me as urement.

A B

Replace door open monitor switch.

5. When the digital clock does not operate properly.



refer to Circuit Diagram( P oint 5 )

POINT WAVE FORM

A T: 16. 67ms(60 Hz )



If clock does not keep exact time, you must check resistor R15,16, zener diodeZD1.



Page 30

2. P.C.B. CIRCUIT DIAGRAM

PRINTED CIRCUIT BOARD



Page 31

✔ Caution:

PRINTED CIRCUIT BOARD

3. P.C.B. LOCATION NO

(1) KOR-631G/631H

NO NAME SYMBOL SPECIFICATION PART CODE Q'TY

1 BUZZER BZ1 B M-20K 3515600100 1 2 C ARR AY CA 1 7P(6) 102 M 50V CN6XB-102M 1 3 CAPACITOR ELEC E C1 16V RS S 100uF CEXF1C101V 1 4 CAPACITOR ELEC E C2 25V RS S 1000uF CEXF1E102V 1 5 CON NE CTOR WAFE R CN1 YW396-02AV 3519150520 1 6 CON NE CTOR WAFE R CN2 YW396-05AV 3519150510 1 7 CON NE CTOR WAFE R CN3 FCZ254-11 441M367160 1 8 DIODE REC TIFY D1~6,9~12 1N4148 D ZN 4148--- 10

9 DIODE R ECTIFY D13,14 1N4002A DZN4002A-- 2 10 D IODE ZENER ZD1 M TZ 5.1VB 1/2W DZTZ5R1B-- 1 11 DIODE ZENER ZD2 MTZ 3.9VB 1/2W DZTZ3R9B-- 1 12 LED DISPLAY DP1 DDG -631H D DD G631H -- 1 13 PCB MA IN 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 M C7905C 1MC 7905C-- 1 23 TRANSISTOR Q1~5,9~11 K RA-102M TZRA102M -- 8 24 TRANSISTOR Q6 KTA-1270Y TZTA1270Y- 1 25 TRANS POW ER LVT1 DMR-631FS 5EPV035303 1 26 W IRE COPPER J1-J21 1/0.52 TIN COATING 85801052GY 21 27 W IRE COPPER SJ4 1/0.52 TIN CO ATING 85801052GY 1 28 IC MICOM IC1 TMP47C 440B-NF87 13GS 861GH0 1 29 RESONATOR CERA CR1 KBR-4.0MSTF 5PKBR40MKS 1 30 SW RE LAY RY1 G5G-1A DC12V 5SC0101121 1 31 SW RE LAY RY2 G5B-1 DC12V 5SC0101110 1 32 CAPACITOR CER A C6 102 50V Z AXIAL CCZB1H102K 1 33 CAPACITOR CER A C1~5,C7 104 50V Z AXIAL CCZF1H104Z 6



Page 32

✔ Caution:

PRINTED CIRCUIT BOARD

(2) KOR-861G/861H

NO NAME SYMBOL SPECIFICATION PART CODE Q'TY

1 BUZZER BZ1 B M-20K 3515600100 1

2 C ARR AY CA 1 7P(6) 102 M 50V CN6XB-102M 1

3 CAPACITOR ELEC E C1 16V RS S 100uF CEXF1C101V 1

4 CAPACITOR ELEC E C2 25V RS S 1000uF C EX F1E102V 1

5 CON NE CTOR WAFE R CN1 YW396-02AV 3519150520 1

6 CON NE CTOR WAFE R CN2 YW396-05AV 3519150510 1

7 CON NE CTOR WAFE R CN3 FCZ254-11 441M367160 1

8 DIODE REC TIFY D1~6,9~12 1N4148 D ZN 4148--- 10

9 DIODE R ECTIFY D13,14 1N4002A DZN4002A-- 2 10 D IODE ZENER ZD1 M TZ 5.1VB 1/2W DZTZ5R1B-- 1 11 DIODE ZENER ZD2 MTZ 3.9VB 1/2W DZTZ3R9B-- 1 12 LED DISPLAY DP1 DDG -631H D DD G631H -- 1 13 PCB MA IN 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 M C7905C 1MC 7905C-- 1 23 TRANSISTOR Q1~5,9~11 K RA-102M TZRA102M -- 8 24 TRANSISTOR Q6 KTA-1270Y TZTA1270Y- 1 25 TRANS POW ER LVT1 DMR-631FS 5EPV035303 1 26 W IRE COPPER J1-J21 1/0.52 TIN COATING 85801052GY 21 27 W IRE COPPER SJ1, SJ4 1/0.52 TIN COATING 85801052GY 2 28 IC MICOM IC1 TMP47C 440B-NF87 13GS 861GH0 1 29 RESONATOR CERA CR1 KBR-4.0MSTF 5PKBR40MKS 1 30 SW RE LAY RY1 G5G-1A DC12V 5SC0101121 1 31 SW RE LAY RY2 G5B-1 DC12V 5SC0101110 1 32 CAPACITOR CER A C6 102 50V Z AXIAL CCZB1H102K 1 33 CAPACITOR CER A C1~5,C7 104 50V Z AXIAL CCZF1H104Z 6



Page 33

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



Page 34

✔ Caution:

EXPLODED VIEW AND PARTS LIST

(1) KOR-631G/631H

REF NO PART CODE PART NAME DESCRIPTION Q'TY

A00 DO OR AS B00 CO NT RO L PANEL AS 1

F01 3510801310 CABINET PCM T 0.6 GE 1 F02 7112401011 SCRE W TAPPING T1 TRS 4X 10 M FZN 3 F03 3516109000 CAVITY WELD AS CAVITY WE LD A S 1

3516109600 CAVITY JOINT AS CAVITY JOINT AS 1 F04 7112401011 SCRE W TAPPING T1 TRS 4X 10 M FZN 1 F05 7122401211 SCREW TAPPING T2S TRS 4X12 M FZN 1 F06 7122401211 SCREW TAPPING T2S TRS 4X12 M FZN 1 F07 7112401011 SCRE W TAPPING T1 TRS 4X 10 M FZN 1 F08 35113ACNM5 C OR D PO WE R AS 3X0.75 40X40 120-RTML 1 F09 4413A90012 CLA MP PO W ER CO RD NYLON66 1 F10 7122401211 SCREW TAPPING T2S TRS 4X12 M FZN 1 F11 7121403011 SCREW TAPPING T2S PAN 4X30 MFZN 2 F12 3963324300 MO TO R S HA DE D P OLE 220V 25W M W 10GA -M01 1 F13 3512517000 GU IDE W IND PP 1 F14 3511800300 FAN PP+30%G LASS 1 F15 3518002200 MA GN ETR O N 2M 218H(MF)I 1 F16 3516004000 SCR EW S PE CIAL T2 BOLT FLANGE 5X12 DA CR O 1 F17 7272400811 SCREW TAPTITE TT3 TRS 4X8 M FZN 1 F18 3513003200 HO LDER HV C APACITOR SECC T0.6 1 F19 3518301900 CAPACITOR HV 2100VAC 0.84uF #187 1 F20 3518400400 DIODE H V H VR -1X-3AB 12KV #187 1 F21 3518113900 TRANS HV DY-N80P0-63T 1 F22 3516003700 SPEC IAL SCRE W TT3 HEX 4X8 FLG M FZ N 4 F23 3510311700 BASE SBHG T0.8 1 F24 7112401011 SCRE W TAPPING T1 TRS 4X 10 M FZN 5 F25 3512100900 FOO T PP DAS F-130 2 F26 7272400811 SCREW TAPTITE TT3 TRS 4X8 M FZN 1 F27 3515201101 STOPPER H INGE *U SC P-1 T2.5 1 F28 4415A17352 SW M ICRO VP-533A-OF SPNO #187 200G 1 F29 4415A66600 SW M ICRO VP-532A-OF SPNC #187 200G 1 F30 4415A17352 SW M ICRO VP-533A-OF SPNO #187 200G 1 F31 3513702600 LEVER LO CK PO M 1 F32 3513811700 LOCK PO M 1 F33 3513601600 LAMP BL 240V 25W T25 C7A H187 1 F34 7121400611 SCREW TAPPING T2S PAN 4X6 M FZN 1 F35 3966310100 MO TO R S YN CR O 220V 2.5W GM -16-24FD12 1

3966310110 MOTOR S YN CR O 220V 2.5W M2LJ49ZT52 1 F36 3518905300 THE RM OS TAT O FF:75 ON:65 H #187 NB 1 F37 3513003400 HO LDER THE RM O S TAT PB T 1 F38 7272400811 SCREW TAPTITE TT3 TRS 4X8 M FZN 1 F39 3511406200 COVE R W AVE G UIDE H EATPROOF PP 1 F40 3517400620 CO UP LER XA RE C 1 F41 3514700710 RO LLER TEFLON 3 F42 3512517300 GU IDE RO LLER PP 5113MF6 A353B 1 F43 3517203600 TRAY GLASS 1

Refer to disassembly and assembly



Page 35

✔ Caution:

EXPLODED VIEW AND PARTS LIST

(2) KOR-861G/861H

REF NO PART CODE PART NAME DESCRIPTION Q'TY

A00 DO OR AS B00 CO NT RO L PANEL AS 1

F01 3510801400 CABINET PCM T 0.6 1 F02 7112401011 SCRE W TAPPING T1 TRS 4X 10 M FZN 3 F03 3516109200 CAVITY WELD AS CAVITY WE LD A S 1

3516109700 CAVITY JOINT AS CAVITY JOINT AS 1 F04 7112401011 SCRE W TAPPING T1 TRS 4X 10 M FZN 1 F05 7122401211 SCREW TAPPING T2S TRS 4X12 M FZN 1 F06 7122401211 SCREW TAPPING T2S TRS 4X12 M FZN 1 F07 7112401011 SCRE W TAPPING T1 TRS 4X 10 M FZN 1 F08 35113ACNM5 C OR D PO WE R AS 3X0.75 40X40 120-RTML 1 F09 4413A90012 CLA MP PO W ER CO RD NYLON66 1 F10 7122401211 SCREW TAPPING T2S TRS 4X12 M FZN 1 F11 7121403011 SCREW TAPPING T2S PAN 4X30 MFZN 2 F12 3963324300 MO TO R S HA DE D P OLE 220V 25W M W 10GA -M01 1 F13 3512517000 GU IDE W IND PP 1 F14 3511800300 FAN PP+30%G LASS 1 F15 3518002200 MA GN ETR O N 2M 218H(MF)I 1 F16 3516004000 SCR EW S PE CIAL T2 BOLT FLANGE 5X12 DA CR O 1 F17 7272400811 SCREW TAPTITE TT3 TRS 4X8 M FZN 1 F18 3513003200 HO LDER HV C APACITOR SECC T0.6 1 F19 3518301900 CAPACITOR HV 2100VAC 0.84uF #187 1 F20 3518400400 DIODE H V H VR -1X-3AB 12KV #187 1 F21 3518114200 TRANS HV DY-N80P0-86T 1 F22 3516003700 SPEC IAL SCRE W TT3 HEX 4X8 FLG M FZ N 4 F23 3510311900 BASE SBHG T0.8 1 F24 7112401011 SCRE W TAPPING T1 TRS 4X 10 M FZN 5 F25 3512100900 FOO T PP DAS F-130 2 F26 7272400811 SCREW TAPTITE TT3 TRS 4X8 M FZN 1 F27 3515201101 STOPPER H INGE *U SC P-1 T2.5 1 F28 4415A17352 SW M ICRO VP-533A-OF SPNO #187 200G 1 F29 4415A66600 SW M ICRO VP-532A-OF SPNC #187 200G 1 F30 4415A17352 SW M ICRO VP-533A-OF SPNO #187 200G 1 F31 3513702600 LEVER LO CK PO M 1 F32 3513811700 LOCK PO M 1 F33 3513601600 LAMP BL 240V 25W T25 C7A H187 1 F34 7121400611 SCREW TAPPING T2S PAN 4X6 M FZN 1 F35 3966310100 MO TO R S YN CR O 220V 2.5W GM -16-24FD12 1

3966310110 MOTOR S YN CR O 220V 2.5W M2LJ49ZT52 1 F36 3518905300 THE RM OS TAT O FF:75 ON:65 H #187 NB 1 F37 3513003400 HO LDER THE RM O S TAT PB T 1 F38 7272400811 SCREW TAPTITE TT3 TRS 4X8 M FZN 1 F39 3511406200 COVE R W AVE G UIDE H EATPROOF PP 1 F40 4418D10032 COUP LER PP S 1 F41 3514700900 RO LLER TEFLON 3 F42 3512509200 GU IDE RO LLER PP 1 F43 3517203500 TRAY GLASS 1

Refer to Disassembly and assembly.



Page 36

DAEWOO ELECTRONICS CO., LTD

686, AHYEON-DONG MAPO-GU SEOUL, KOREA C.P.O. BOX 8003 SEOUL, KOREA TELEX : DWELEC K28177-8 CABLE : “DAEW OOELEC” E-mail : G7F00E@web.dwe.co.kr FAX : 02) 360-8184 TEL: 02) 360-8179~8180

PRINTED DATE : NOV. 1998

Daewoo KOR-861G0P, KOR-631G0P, KOR-631H0P User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual

SAFETY AND PRECAUT IONS

1. FOR SAFE OPERATION

2. FOR SAFE SERVICE PROCEDURES

SPECIFICATIONS

EXTERNAL VIEW

1. OUTER DIMENSION (KOR-631/861)

2. FEATURE DIAGRAM

3. CONTROL PANEL

INSTALLATION

OPER ATIO NS AND FU NCTIO NS

DISASSEMBLY AN D ASSEMBLY

INTER L OCK MECHANISM AND ADJUSTMENT

TROUBLE SHOOTING GUIDE

ME ASURE M ENT AND TEST

1. MEASUREMENT OF THE MICROWAVE POWER OUTPUT

2. MICROWAVE RADIATION TEST

3. COMPONENT TEST PROCEDURE

WIR ING DIAGRAM

PRINTED CIRCUIT BOARD

1. CIRCUIT CHECK PROCEDURE

2. P.C.B. CIRCUIT DIAGRAM

3. P.C.B. LOCATION NO

EXPLODED VIEW AND PARTS LIST

1. DOOR ASSEMBLY

2. CONTROL PANEL ASSEMBLY

3. TOTAL ASSEMBLY