Daewoo KOG-8A0R5S Service Manual - Installation

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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 and 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 10 amperes, 230 Volts, 50 Hz.

• Power supply cord is about 0.8 meters long.

• Used the voltage 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 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 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 is colder 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 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 plug. The

plug must be plugged into an outlet that is properly installed and earthed.

INSTALLATION

WARNING

Improper use of the earthing plug can result in a risk of electric shock. Consult a qualified electrician or service-man 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 USE an extension cord.

EARTHING INSTRUCTIONS

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Summary of KOG-8A0R5S

Page 1
Service manual microwave oven model: kor-6l3b3s kor-6l3b3w s/m no. : dec. 2010 ✔ 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 infor...
Page 2
1 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- w...
Page 3: Safety and Precautions
2 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 trai...
Page 4: Specifications
3 specifications power supply 220~240v ac, 50hz single phase with earthing input power 1000 w microwave energy output 700 w frequency 2,450 mhz outside dimensions (w x h x d) 446 x 270 x 319 mm cavity dimensions (w x h x d) 295 x 219 x 303 mm cavity volume 20 l net weight approx. 10.2 kg timer 59 mi...
Page 5: External View
4 external view 1. Outer dimension 446 319 270
Page 6
5 1 8 7 6 5 w 2 3 4 9 0 q 1 1 door latch - when the door is closed, it will automatically shut off. If the door is opened while the oven is operating, the magnetron will automatically shut off. 2 2 door seal - the door seal surfaces prevent microwaves escaping from the oven cavity. 3 3 oven cavity 4...
Page 7
6 1 2 5 4 9 8 3 6 7 1 1 display - cooking time, power level, indicators and the current time are displayed. 2 2 auto cook - used to cook or reheat many of favorite food. 3 3 defrost - used to defrost foods for time and weight. 4 4 power - used to set power level. 5 5 clock - used to set clock. 6 6 o...
Page 8: Installation
7 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,...
Page 9: Operations and Functions
8 make sure the oven is properly installed and plugged into the electrical. Operations and functions 1 1. Connect the mains lead to an electrical outlet. 1 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 durin...
Page 10: Disassembly and Assembly
9 disassembly and assembly cautions to be observed when troubleshooting. Unlike many other appliances, the microwave oven is high-voltage, high-current equipment. It is completely safe during normal operation. However, carelessness in servicing the oven can result in an electric shock or possible da...
Page 11
10 1. To remove cabinet 1) remove four screws on cabinet back. 2) pull the cabinet backward. 2. To remove door assembly 1) remove two screws which secure the stopper hinge top. 2) remove the door assembly from top plate of cavity. 3) reverse the above for reassembly. Note : after replacing the door ...
Page 12: Door Assembly : 3511729900
11 3. To remove door parts. (1) remove the gasket door from the door painting as. (2) remove the barrier screen inner from the door painting as. (3) remove the frame door from the door painting as. (4) remove the stopper hinge top as from the door painting as. (5) remove the spring hook and the hook...
Page 13
12 (1) to reduce gap located on part ‘a’ • loosen two screws on the stopper hinge top, and then push the door to contact the door seal to the oven front sur- face. • tighten two screws. (2) to reduce gap located on part ‘b’ • loosen two screws on the stopper hinge under, and then push the door to co...
Page 14: C/panel Assembly :
13 5. To remove control panel parts. B01 b07 b06 b05 b04 b03 b02 (1) remove the screw which secure the control panel, push up two snap fits and draw forward the control panel assembly. (2) remove three screws which secure the pcb assembly to control panel. (3) disconnect membrane tail from the conne...
Page 15
14 6. To remove high voltage capacitor. 1) remove the 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. ◆ high voltage circuit wiring 7. To remove magnetron. 1) rem...
Page 16
15 8. To remove wind guide assembly. 1) remove the screw for earthing. 2) remove the noise filter from the wind guide. 3) remove the screw which secure the wind guide assembly. 4) draw forward the wind guide assembly. 5) pull the fan from the motor shaft. 6) remove two screws which secure the motor ...
Page 17
16 interlock 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) primary interlock sw...
Page 18: Troubleshooting Guide
17 (trouble 1) oven does not operate at all ; any inputs can not be accepted. Troubleshooting guide following the procedure below to check if the oven is defective or not. 1. Check grounding before trouble checking. 2. Be careful of the high voltage circuit. 3. Discharge the high voltage capacitor. ...
Page 19
18 condition check check continuity of magnetron defective mag- netron result no continuity cause remedy replace outlet has proper volt- age fuse does not blow. Check continuity of noise filter board defective mag- netron no continuity replace check continuity of power supply cord open power sup- pl...
Page 20
19 (trouble 3) no microwave oscillation even though fan motor rotates. Condition check result check continuity of high voltage capacitor terminals with wires removed continuity cause defective high voltage trans- former remedy replace no microwave oscillation check continuity of high voltage fuse re...
Page 21
20 (trouble 4) the following visual conditions indicate a probable defective touch control circuit 1. Incomplete segments, 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 cha...
Page 22: Measurement and Test
21 measurement 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 ...
Page 23
22 2. Microwave radiation test procedures 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 600cc glass beaker with an inside diameter of approx. 95mm(3.5in.). 3. Place it at the center...
Page 24
23 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 attempt measurement of the high voltage. • before touching any oven components or wiring, always unplug the oven ...
Page 25: Wiring Diagram
24 wiring diagram.
Page 26: Printed Circuit Board
25 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 : 120v / frequency : 60hz 2. Voltage check • key check point • check method no check point remark 1 ic 1 pin 5 5 vdc 2 ic 1...
Page 27
26 measure point mp1 mp2 gnd.
Page 28
27 3. When there is no microwave oscillation 1) when touching start pad, oven lamp does not turn on. Fan motor do not rotate, but cook indicator in display comes on. - check method 2) when touching start pad, oven lamp turns on. Fan motor and turntable rotate and cook indicator in display comes on. ...
Page 29
28 2. Pcb circuit diagram.
Page 30
29 3. Pcb location no. 1 buzzer bz1 bm-20k 3515600100 1 2 capacitor ceramic c1,2,3,8,9 50v 0.1uf z axial cczf1h104z 5 3 capacitor ceramic c4,5,6,7 50v 1000pf z axial cczb1h102k 4 4 capacitor electro ec1 50v rs 10uf(5x11) cexe1h100a 1 5 capacitor electro ec2 50v rss 220uf(10x16) cexf1h221v 1 6 capaci...
Page 31: Exploded View and Parts List
30 1. Door assembly refer to disassembly and assembly. 2. Control panel assembly refer to disassembly and assembly. 3. Total assembly exploded view and parts list.
Page 32
31 ✔ 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). A00 3511729900 door as kqg-6l353s 1 b0...
Page 33
S/m no. : daewoo electronics corp. 1-2, jeo-dong 1(il)-ga, jung-gu, seoul, korea c.P.O. Box 8003 seoul, korea telex: dwelec k28177-8 cable: “daewooelec” printed date: dec. 2010
Page 34: About This Manual
V viis siio on n c cr re ea at tiiv ve e,, iin nc c.. 서울 종로구 통의동 6 번지 이룸빌딩 4 층 about this manual about this manual 담 당 김영진 님 m o d e l kor-6l3b3s,w (s/m) 접 수 2010.12.16 1차 2차 일 정 3차 4차 5차 제 판 한 인 인 쇄 쇄 규 격 memo 연락처 vision 담 당 방 문 수 tel: 730-0660 fax: 730-3788 10.12.16-표지, 표지뒤, 3p, 4p, 5p, 6p, 11p, 1...