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S/M No. : R63M51D001




Service Manual
Microwave Oven
Model: KOR-63M51D




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).




http : //svc.dwe.co.kr Mar. 2003
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 micro-
wave 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 gen-
erating compartments, check the magnetron, wave guide or transmission line, and cavity for proper align-
ment, 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 per-
formed 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 ........................................................................................................................................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
1. DOOR ASSEMBLY .........................................................................................................................................22
2. CONTROL PANEL ASSEMBLY......................................................................................................................22
3. TOTAL ASSEMBLY.........................................................................................................................................22




1
SAFETY AND PRECAUTIONS

CAUTION : This Device is to be Serviced Only by Properly Qualified Service Personnel. Consult the Service
Manual for Proper Service Procedures to Assure Continued Safety Operation and for Precautions
to be Taken to Avoid Possible Exposure to Excessive Microwave Energy.



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 dealer immediately.


CAUTION
MICROWAVE RADIATION

PERSONNEL SHOULD NOT BE EXPOSED TO THE MICROWAVE ENERGY WHICH MAY RADIATE
FROM THE MAGNETRON OR OTHER MICROWAVE GENERATING DEVICE IF IT IS IMPROPERLY
USED OR CONNECTED. ALL INPUT AND OUTPUT MICROWAVE CONNECTIONS. WAVEGUIDES
FLANGES AND GASKETS MUST BE SECURED. NEVER OPERATE THE DEVICE WITHOUT A
MICROWAVE ENERGY ABSORBING LOAD ATTACHED. NEVER LOOK INTO AN OPEN WAVEGUIDE
OR ANTENNA WHILE THE DEVICE IS ENERGIZED.




2
SPECIFICATIONS
MODEL KOR-63M51D
POWER SUPPLY 120V~60Hz, SINGLE PHASE WITH EARTHING
MICROWAVE 900 W
POWER CONSUMPTION GRILL
COMBINATION
MICROWAVE ENERGY OUTPUT 600W
MICROWAVE FREQUENCY 2450MHz
OUTSIDE DIMENSIONS (W X H X D) 465 x 279 x 347 mm (18.3 x 11.0 x 13.7 in.)
CAVITY DIMENSIONS (W X H X D) 290 x 211 x 306 mm (11.4 x 8.3 x 12.0 in.)
NET WEIGHT Approx. 10.5 kg (23.2 Ibs.)
TIMER 35 min. Dual Speed
FUNCTION SELECTIONS MICROWAVE
POWER SELECTIONS 5 LEVELS
CAVITY VOLUME 0.7 Cu. Ft.
* SPECIFICATIONS ARE SUBJECT TO CHANGE WITHOUT NOTICE.




3
EXTERNAL VIEW
1. OUTER DIMENSION



465 347




279




4
2. FEATURE DIAGRAM




1 Safety interlock system

2 Door viewing screen - Allows viewing of food. The screen is designed so that light can pass through, but not the
microwave.

3 Door hook - When the door is closed, it will automatically shut off. If the door is opened while the oven is operating, the
automatically shut off.

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 is placed on this tray for cook-
ing.

7 Roller guide - This must always be used for cooking together with the 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.

0 Knob timer - Used in setting cooking time for all function.

q Door opening button - To open the door, push the door opening button. When door is closed, it will automatically lock
shut. If door is opened, while oven is operating, magnetron tube will immediately stop operating.




5
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. 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