Service Manuals, User Guides, Schematic Diagrams or docs for : Daewoo KOR KOR-637V0S & 633V0S KOR-637V0S & 633V0S
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S/M No. : R637V0S001
Service Manual
Microwave Oven
Model: KOR-637V0S
KOR-633V0S
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.
http : //svc.dwe.co.kr Jan. 2002
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
FOR SAFE OPERATION ......................................................................................................................................2
FOR SAFE SERVICE PROCEDURES .................................................................................................................2
SPECIFICATIONS ...............................................................................................................................................................3
EXTERNAL VIEW................................................................................................................................................................4
OUTER DIMENSION.............................................................................................................................................4
FEATURE DIAGRAM ............................................................................................................................................5
CONTROL PANEL ................................................................................................................................................6
INSTALLATION ...................................................................................................................................................................8
OPERATIONS AND FUNCTIONS.......................................................................................................................................9
IMPORTANT SAFETY INSTRUCTIONS FOR STERILIZATION ......................................................................................10
DISASSEMBLY AND ASSEMBLY....................................................................................................................................11
INTERLOCK MECHANISM AND ADJUSTMENT.............................................................................................................21
TROUBLE SHOOTING GUIDE .........................................................................................................................................22
MEASUREMENT AND TEST ............................................................................................................................................27
MEASUREMENT OF THE MICROWAVE POWER OUTPUT ............................................................................27
MICROWAVE RADIATION TEST .......................................................................................................................28
COMPONENT TEST PROCEDURE ...................................................................................................................29
WIRING DIAGRAM............................................................................................................................................................30
PRINTED CIRCUIT BOARD..............................................................................................................................................31
CIRCUIT CHECK PROCEDURE ........................................................................................................................31
PCB CIRCUIT DIAGRAM....................................................................................................................................35
P.C.B. LOCATION NO ........................................................................................................................................36
EXPLODED VIEW AND PARTS LIST...............................................................................................................................37
DOOR ASSEMBLY .............................................................................................................................................37
CONTROL PANEL ASSEMBLY..........................................................................................................................37
TOTAL ASSEMBLY.............................................................................................................................................37
1
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 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 CDRH immediately.
IMPORTANT
The wire in this mains lead coloured in accordance with the following code.
Green-and-yellow : Each
Blue : Neutral
Brown : Live
As the colours of the wires in the manins lead of this appliance may 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 terminal 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 marked with the letter `L' or
coloured red.
NOTE
This oven is designed for counter-top use only.
2
SPECIFICATIONS
MODEL KOR-637V0S KOR-633V0S
POWER SUPPLY 120V~60Hz, SINGLE PHASE WITH GROUNDING
MICROWAVE 1,200W
POWER GRILL
CONSUMPTION COMBINATION
COMBINATION 10W
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) 465 x 279 x 365 mm (18.3 x 11.0 x 14.4 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. 12.3kg (27.2 Ibs.)
TIMER 59 MIN. 00 sec.
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
(1) KOR-637V0S
465 360
279
(2) KOR-633V0S
465/495 365/392
279/294
4
2. FEATURE DIAGRAM
1 SAFETY INTERLOCK SYSTEM
2 DOOR SCREEN
Allows viewing of food. The screen is transparent to light, but prevents microwaves escaping.
3 DOOR LATCH
When the door is closed, it will automatically shut off. If the door is opened while the oven operating, the magnetron
tube will immediately stop operating.
4 OVEN CAVITY
5 DOOR SEAL
Door seal surfaces prevent microwave escaping from the oven cavity.
7 GLASS COOKING TRAY
Made of special heat resistant glass. The tray can be easily removed for cleaning. Make sure it is correctly
positioned(indentation) before operating. Place food in a suitable container(dish ) on the tray.
8 ROLLER GUIDE
Supports the glass cooking tray.
9 COUPLER
This fits over the shaft in the center of the ovens cavity floor. This is to remain in the oven for all cooking.
0 UV LAMP
q CONTROL PANEL
5
3. CONTROL PANEL
(1) KOR-637V0S
5
M/W DEF. LOCK PURIFI g
AUTO COOK POWER/ CLOCK
DEFROST
1 4
3
1. Dinner Plote STERILIZATION
2. Soup
3. Beverage 2
4. Fresh Vegetable
i g h t / T i me
We
8
START/
STOP/CLEAR EASY COOK
6 7
1 AUTO COOK
Used to cook using a program or to reheat.
2 STERILIZATION
Used to sterilize baby bottle, cup, plate, etc.
3 POWER/DEFROST
Used to set power level and to defrost foods by weight or time.
4 CLOCK
Used to set clock.
5 DISPLAY
Cooking time, power level, indicators and present time are displayed.
6 STOP/CLEAR
Used to stop the oven operation or to erase all entries.
7 START/EASY COOK
Used to start the oven operation and also increase the reheat time by 30 seconds.
8 DIAL KNOB
Used to set the time and weight.
6
(2) KOR-633V0S
KOR-633V
AUTO COOK
1
1. Dinner Plate
2. Soup
3. Beverage
4. Fresh Vegetable
STERILIZATION
2
POWER/DEF.
3
CLOCK
4
5
M/W DEF. LOCK STERIL. g
6
STOP/
CLEAR
7
START/
EASY COOK
Weight/
Time
8
1 AUTO COOK
Used to cook using a program or to reheat.
2 STERILIZATION
Used to sterilize baby bottle, cup, plate, etc.
3 POWER/DEF.
Used to set power level and to defrost foods by weight or time.
4 CLOCK
Used to set clock.
5 DISPLAY
Cooking time, power level, indicators and present time are displayed.
6 STOP/CLEAR
Used to stop the oven operation or to erase all entries.
7 START/EASY COOK
Used to start the oven operation and also increase the reheat time by 30 seconds.
8 DIAL KNOB
Used to set the time and weight.
7
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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