Daewoo KOG-8465 User manual

Service Manual
Microwave Oven
KOG-8465
DAEWOO ELECTRONICS CO., LTD.
Power
Timer 0
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✔ 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).

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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
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.
(c)Before turning on microwave power for any service test or inspection within the microwave 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.
TABLE OF CONTENTS
PROPER USE AND SERVICE PRECAUTIONS 3
SPECIFICATIONS 5
EXTERNAL VIEWS 5
NAMES AND FUNCTION OF PARTS 6
CONTROL PANEL 7
HOW TO SET THE OVEN CONTROLS 8
INTERLOCK MECHANISM FUNCTIONS AND ADJUSTMENTS 11
PRECAUTIONS FOR DISASSEMBLY AND REPAIR 13
DISASSEMBLY AND ASSEMBLY 14
TROUBLE SHOOTING GUIDE 21
MEASUREMENT 25
COMPONENT TEST PROCEDURE 27
WIRING DIAGRAM 28
SCHEMATIC DIAGRAM 29
WIRING DIAGRAM(GERMANY) 31
SCHEMATIC DIAGRAM(GERMANY) 32
EXPLODED VIEW 34

PROPER USE AND SERVICE 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 must 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. Correct Installation
1) This microwave oven weighs 18 kg(40lbs.) and must be placed on a horizontal base strong enough to support
this weight.
2) The oven should be placed as far from high temperature source and vapour as possible.
3) The power supply cord is about 1.6m (5.25ft) long. Earthing is required when connecting the power source.
4) Power consumption of this oven is approximately 2.8 kw. It is suggested that the unit is operated on such power
line(about 12 amperes) that can provide more power than this rating.
5) Object must not be placed on the top enclosure so as not to obstruct air flow for ventilation.
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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, WAVEGUIDE,
FLANGES AND GASKETS MUST BE SECURE. NEVER OPERATE THE DEVICE WITHOUT A
MICROWAVE ENERGY ABSORBING LOAD ATTACHED. NEVER LOOK INTO AN OPEN WAVEGUIDE
OR ANTENNA WHILE THE DEVICE IS ENERGIZED

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IMPORTANT
The wires in this mains lead coloured in accordance with the following code.
Green-and-yellow : Earth
Blue : Neutral
Brown : Live
As the colours of the wires in the mains 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’ or by earth symbol or 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.

SPECIFICATIONS
EXTERNAL VIEWS
Power Supply 230V~, 50Hz 240V~, 50Hz(U.K)
Power Consumption 1,450 W 1,500W
Microwave Output Power 900W (IEC 705) 900W (IEC 705)
Frequency 2,450 MHz 2,450 MHz
Grill power consumption 1,400 W 1,500W
Simultaneous Heating Power Consumption 2,800 W 2,950 W
Outside Dimensions (W X H X D) 501 X 319 X 389 mm (19.7 X 12.6 X 15.3 in.)
Cavity Dimensions (W X H X D) 310 X 229 X 330 mm (12.2 X 9.0X 13.0 in.)
Net Weight Approx. 18 kg (40 Ibs.)
Timer 60 min. Dual
Select Function Microwave/Grill/Simultaneous Heating
Microwave Power Level High/Med High/Med/Defrost/Low
(900W) (725W) (520W) (310W) (165W)
Simultaneous heating Level 3-Levles( Grill+M/W 3-Power levels)
* Specifications subject to change without notice.
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NAMES AND FUNCTION OF PARTS
¤DOOR SEAL
Door seal maintains the microwave within the
oven cavity and prevents microwave leakage.
¤ŁDOOR HOOK
When door is closed, it will autoamtically lock shut.
If door is opened while oven is operating,
magnetron tube will immediately stop operating.
¤ØDOOR SCREEN
Allows viewing of food. Microwave cannot pass
through perforations in screen.
¤ŒGRILL HEATER
Turns on when grill and simultaneous cooking is
selected.
¤ºOVEN LAMP
Automatically turns on during oven operating.
¤SAFETY INTERLOCK SYSTEM
¤CONTROL PANEL
¤GLASS TURN -TABLE TRAY
Rotates during cooking and ensure even
distribution of Microwaves. It can also be used as
a cooking utensil.
¤OVEN FRONT PLATE
¤ROLLER GUIDE
This must be always used for cooking together
with the glass turn-table tray. Use a mild
detergent, water and a soft cloth to clean the
roller guide.
¤æCOUPLER
This fits over the shaft in the center of the oven’s
cavity floor.
This is to remain in the oven for all cooking.

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CONTROL PANEL
Power
Timer 0
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POWER OR FUNCTION SELECT KNOB
- Used to select a microwave power level in M/W,
GRILL or SIMUL. cooking.
- Used to select a function before the cooking.
1) M/W oven-used to heat food with
microwave.
2) GRILL-Used to browning food with grill
heater.
3) SIMUL. - used to simultaneous cooking with
microwave and grill heater.
TIMER KNOB
- Used in setting cooking time for all functions.
NOTE :
When setting TIMER for less than 1
minute, turn the TIMER past 1 minute
and then return to correct timing.

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HOW TO SET THE OVEN CONTROLS
1. MICROWAVE DEFROST
• This oven has 5-power levels in microwave cooking.
• You can select these levels by POWER knob.
1. place food inside oven.
2. Set POWER knob to appropriate M/W power level position.
3. Set TIMER knob to the cooking time.
NOTE : ¡Be sure to read the cookbook’s introduction before operating the oven.
¡Also remember to read this operating instruction for proper safety information and instruction before using
the oven.
¡See the cookbook for specific recipes.
¡Prior to setting the controls, place one cup of water in the oven, in a heat-proof glass measuring cup, for
testing purposes.
¡You may open the door while the oven is operating.
¡As soon as the door is opened, the safety mechanisms stop power.
¡To continue cooking, close door, then the oven is operated.
¡If you wish to change the time during cooking, simply adjust the TIMER to desired minutes.
¡When time has elapsed, a bell will ring and the oven will turn off.
NOTE : Output power refer to a value of reference.
SYMBOL M/W POWER LEVEL OUTPUT POWER
LOW 165W
DEFROST 310W
MEDIUM 520W
MED. HIGH 725W
HIGH 900W

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2. GRILL COOKING
¥Grilling in this oven is similar to conventional broiling.
¥There is no need to preheat the oven for griling.
1. Place food on the Metal Rack, and set it on the Tray.
2. Set POWER knob to GRILL position.
3. Set TIMER knob to the cooking time.
EXAMPLE : To Grill hamburgers, steaks, kabobs, etc. use the trays this way:
To use :
• Place food on Metal Rack.
• Place the Metal Rack directly on the
Turntable.

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2. COMBINATION COOKING
¥This oven has 3-cooking levels in SIMUL-COOKING.
¥You can select these levels by POWER knob.
1. Place food on the Metal Rack or Tray.
2. Set POWER knob to SIMUL position.
3. Set TIMER knob to the cooking time.
• To prevent the oven operating with the door open, this oven is fitted with safety door interlock switches.
If you wish to inspect the food during the cooking time, simply open the door.
The oven will automatically stop the cooking.
• To continue cooking, close the door.
• If you wish to stop the cook during the cooking, simply turn the timer knob to the point “OFF”.
Cooking time can be reset at any time during cycle by turing the timer knob.
• Do not let the timer continue to oeprate after removing food.
(COMBI 1) (COMBI 2) (COMBI 3)
Grill Grill Grill
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M/W Low M/W Med Low M/W Med