Service Manual - Daewoo

S/M No. :

C870T0S003

Service Manual

Microwave Oven

Model: KOC-870T0S

KOC-875T0S

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.

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

SPECIFICATIONS

NAMES AND FUNCTION OF PARTS

CONTROL PANEL

OPERATION

INTERLOCK MECHANISM FUNCTIONS AND ADJUSTMENTS

PRECAUTIONS FOR DISASSEMBLY AND REPAIR

DISASSEMBLY AND ASSEMBLY

TROUBLE SHOOTING GUIDE

MEASUREMENT

COMPONENT TEST PROCEDURE

WIRING DIAGRAM

SCHEMATIC DIAGRAM

EXPLODED VIEWS AND PARTS LIST

PRINTED WIRING BOARD

P.C.B. CIRCUIT DIAGRAM

P.C.B. LOCATION NO.

28

31

32

39

40

18

24

26

27

9

10

6

7

4

5

2

3

1

PROPER USE AND SERVICE 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) This microwave oven weight 17.6kg (38.9 lbs.) 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 1.1m (3.6ft) long. Earthing is required when connecting the power source.

4) Maximum power consumption of this oven is approximately 2.6Kw(230V). It is suggested that the unit is operated on such power line (about 13 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.

WARNING : This appliance must be earthed.

IMPORTANT

The wires in this mains lead coloured in accordance with the following code.

Green-and-yellow : Earth

Blue

Brown

: Neutral

: 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 the 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.

2

SPECIFICATIONS

MODEL

POWER SUPPLY

MICROWAVE POWER CONSUMPTION

OUTPUT POWER

FREQUENCY

GRILL POWER CONSUMPTION

CONVECTION POWER CONSUMPTION

AUTO COOK POWER CONSUMPTION

OUTSIDE DIMENSIONS (W X D X H )

CAVITY DIMENSIONS (W X D X H)

NET WEIGHT

TIMER

SELECT FUNCTION

MICROWAVE POWER LEVEL

* Specifications subject to change without notice.

KOC-870T0S

230V ~ , 50Hz 240V~, 50Hz

1,550 W

900 W (IEC 705)

1,550 W

900W(IEC 706)

2,450 MHZ

1,150 W

1,550 W

2,600 W

2,450MHz

1,200 W

1,600 W

2,650 W

501 X 398 X 320 mm (19.7 X 15.7 X 12.6 in.)

310 X 310 X 229 mm (12.2 X 12.6 X 9.0 in.)

17.6 kg (38.9 Ibs.)

60 minutes

Microwave/ Grill / Convection / Combination

10 stages

KOC-870T5S

230V~, 50Hz

1,550 W

900 W (IEC 705)

2,450MHz

1,150 W

1,550 W

1,950 W

EXTERNAL VIEWS

332

501

Fig. 1 Front View

M/W

DEFROST

GRILL COMBI WEIGHT TIME

AUTO

COOK

PIE TEMP

COOK kg

Grill Combi +1 min

Pie Temp +10 sec

Auto Cook

1. Roast Beef

2. Roast Pork

3. Roast Chicken

4. Fish Fillets

5. Vegetable

STOP/

CLEAR

M/W

+

START

Speedy

Defrost

-

Clock

TIME/WEIGHT

3

210

402

Fig. 2 Side View

NAMES AND FUNCTION OF PARTS

2

8

11

3

1 9 8

4 5 6

M/W

DEFROST

GRILL COMBI WEIGHT TIME

AUTO

COOK

PIE TEMP

COOK kg

Grill Combi +1 min

Pie Temp +10 sec

1. Roast Beef

2. Roast Pork

Auto Cook

3. Roast Chicken

4. Fish Fillets

5. Vegetable

STOP/

CLEAR

START

M/W

+

Speedy

Defrost

Clock

-

TIME/WEIGHT

7

10

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 will immediately stop operating.

3

DOOR SCREEN

-

Allows viewing of food. Microwave cannot pass through perforations in screen.

4

GRILL HEATER

-

Turns on when grill and simultaneous cooking is selected.

5

OVEN LAMP

-

Automatically turns on during oven operating.

6

SAFETY INTERLOCK SYSTEM

7

CONTROL PANEL

8

TURNTABLE TRAY

-

Rotates during cooking and ensure even distribution of Microwaves. It can also be used as a cooking utensil.

9

OVEN FRONT PLATE

0

ROTATING BASE

-

This fits over the shaft in the center of the oven’s cavity floor. This is to remain in the oven for all cooking. It should only be removed for cleaning.

q

UNDER HEATER

4

CONTROL PANEL

When blinking, the oven is operating in COMBI cooking.

When blinking, the oven is operating in GRILL

When blinking, the onve is operating in MICROWAVE

COOK

When blinking, the oven is operating in AUTO COOK.

When blinking, the oven is operating in PIE COOK.

When blinking, the oven is operating in CONVECTION

(TEMP COOK)

Temp Button Used to set desired temperature. If this button pressed for more than

1.3 seconds, number is scrolled up automatically.

Microwave Button-Used to select the variable microwave power level. If this button is pressed for more than 1.3 seconds, number is scrolled up automatically.

Clock Button-Used to set time.

M/W

DEFROST

GRILL COMBI WEIGHT TIME

Grill

AUTO

COOK

PIE TEMP

COOK

Kg

Combi +1 min

Pie Temp +10 sec

Auto Cook

1. Roast Beef

2. Roast Pork

3. Roast Chicken

4. Fish Fillets

5. Vegetable

STOP/

CLEAR

START

M/W

+

Speedy

Defrost

-

Clock

TIME/WEIGHT

When blinking, the oven is operating in WEIGHT

DEFROST.

When blinking, the oven is operating in TIME DEFROST.

When blinking, the oven is operating in weight input mode.

Cooking time is increased by 1 minute.

Cooking time is increased by 10 seconds.

FUNCTION BUTTON

Used to select desired oven operation.;Grill, Combi, Pie

Temp, Auto Cook, M/W,

Defrost.

Stop/Clear Button-Used to select desired oven operation.;Grill, Combi,

Pie Temp, Auto Cook, M/W,Defrost.

Start Button-Used to start the selectee cycle.

Speedy Cook Button-

Used to set desired time.

(Time increases by 30 seconds from 30 seconds to 5 minutes.)

Guide Lamp-

When blinking, it informs you to be ready to operate dial knob.

Dial Knob-

Used to set the cooking time, time of day and weight input.

5

OPERATION

TO STOP THE OVEN WHILE THE OVEN IS OPERATING

1. Press (STOP / CLEAR) button.

- The (STOP) indicator starts blinking.

- You can restart the oven by touching (START) button.

- Touch once more to erase all instruction except clock.

2. Open the door

- You can restart the oven by closing the door and touching button.

NOTE : Oven stops operating when door open.

ERASING INSTRUCTIONS

• Touch (STOP/CLEAR) button to erase all instructions you set previously.

• Opening the oven door during cooking dose not erase cooking instruction.

• If you touch button during operation, the cooking instructions is all erased.

6

INTERLOCK MECHANISM FUNCTIONS AND ADJUSTMENTS

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 switch

When the door is closed, the hook locks the oven door.

If the door is not closed properly, the oven will not operate.

When the door is closed, the hook pushes the lever downward.

The lever press the button of the primary interlock switch to bring it under ‘ON’ condition.

Upper Hook

Mounting screw

Primary interlock switch

7

(2) Monitor interlock switch

When the door is closed, the hook pushes the lever forward, and pushes the Latch Lever downward the lever press the button of the interlock monitor switch to bring it under ‘OFF’ condition. The latch Lever press the button on the secondary interlock switch to bring it under ‘ON’ condition.

- Adjustment

Interlock monitor switch

When the door is closed, the monitor switch should be opened before other switches close.

When the door is opened, the monitor switch should be closed after other switches open.

Adjustment steps :

a) Loosen the two mounting screws.

b) Adjust the interlock switch assembly position.

c) Make sure that the latch lever moves smoothly after adjustment is completed.

d) Completely tighten the two mounting screws.

8

PRECAUTIONS FOR DISASSEMBLY AND REPAIR

- Cautions to be observed when trouble shooting.

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 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 war rubber gloves when servicing the high voltage side.

(3) Warning about the electric charge in the high voltage capacitor. When inspecting and repairing the high voltage side, always short the capacitor terminals and make sure of discharge.

1. Check the earthing.

Do not operate on a 2-wire extension cord.

The microwave oven is designed to be used when 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 stops, 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 screw driver to discharge.

(4) When the 15Amp fuse(870T5S: 12Amp) is blown out due to the operation of the monitor switch; replace secondary interlock switch and monitor switch. Refer to 17 page for the necessary adjustment.

(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 repairing the magnetron.

WARNING : When servicing the appliance, need a care of touching or replacing high potential parts because of electrical shock or exposing microwave. These parts are as follows - H.V. Transformer, magnetron,

H.V. Diode, H.V. Capacitor.

9

DISASSEMBLY AND ASSEMBLY

1. To remove cabinet. (Refer to Fig. 1)

1) Remove three screws on cabinet back.

2) Push the cabinet backward.

2. To remove guide wind assembly. (Refer to Fig. 2)

1) Release two screws

¤Ł.

2) Remove back-cover

¤Ø

.

3) Pull the fan

¤º to the motor shaft.

4) Release two screws

¤ which secure the motor shaded pole

¤Œ

.

5) Reverse the above steps for reassembly.

Fig. 1

5 4 3

2 1

Fig. 2

10

3. To remove H.V. transformer. (Refer to Fig. 3)

1) Remove four screws

1 which secure the

H.V. Transformer bracket to the base plate.

2) Remove the H.V. Transformer

2

.

High voltage circuit wiring

Mognetron

H.V. Copacitor

H.V.Diode

H.V. Trans

H.V.Fuse

2

1

11

4. To remove magnetron. (Refer to Fig. 4)

1) Remove one screws

¤Ł which secure the magnetron

¤

.

2) Remove the magnetron.

3) Reverse the above steps for reassembly.

1 2

Fig. 4

CAUTION : 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

2 for a fully assembled oven with door normally closed.

Metallic gasket plate

Magnetron antenna

Wave guide

Magnetron antenna

Cooling fin

Filament terminal

<Magnetron>

Metallic gasket plate

12

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)

5. To remove control panel assembly. (Refer to Fig. 5, 6)

(1) Remove a screw holding control panel assembly to the oven front plate.

At the same time, draw forward the control panel assembly from oven front plate.

(2) Remove the Dial knob

¤æ

(3) Remove nine screws

¤æ which secure the main and sub

PCB assembly

¤ ,¤ to control panel

¤Ø

.

(4) Remove buttons

¤Œ,¤º,¤ ,¤ .

(5) Remove the Window display

¤Ł

, and Decorator Panel

¤ .

Fig. 5

REF NO.

1

2

3

6

7

4

5

8

9

10

11

PART CODE

3511602500

3515501300

3516716310

3516906000

3516905900

3516905800

3516906100

PKBPMSQ200

PKMPMSP700

PKMPMSP720

7121030811

3513403810

PART NAME

DECORATOR C-PANEL

WINDOW DISPLAY

CONTROL-PANEL

BUTTON FUNCTION

BUTTON FUNCTION

BUTTON START

BUTTON FUNCTION

PCB SUB AS

PCB MAIN AS

SCREW TAPPING

KNOB VOLUME

DESCRIPTION

ABS

PMMA

ABS

ABS

ABS

ABS

ABS

KOC-970T1S

KOC-870T0S

KOC-870T5S

T2S PAN 3X8 MFZN

ABS

13

Fig. 6

Q’TY REMARK

1

1 SMOG

1

1

1 KOR-816

1 KOR-816

1

1

1

KOC-870T0S

KOC-870T5S

9

1 KOR-816

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)

6. To remove door assembly. (Refer to Fig. 7)

1) Remove two screws

1 which secure to hinge.

2) Remove door assembly

2

.

3) Remove door above for reassembly taking case to replace fixing glue.

7. To remove door part. (Refer to Fig. 8)

(1) Remove the Gasket door

7

.

(2) Remove the Door seal Ass’y

5

.

(3) Remove the Hook

8 and Spring

9

.

(4) Remove the Supporter barri-s *0

3

.

(5) Remove the Barrier Screen

2

.

(6) Remove the Handle

0 from the Frame door

3

.

1 2 3 4 5 6 7

1

2

Fig. 7

REF NO.

1

2

5

6

3

4

7

8

9

10

11

PART CODE

3512203520

3517004510

3515305300

3515203600

3511709000

3517004400

3512301300

3513101300

3515101300

3512601500

7S341W40B1

PART NAME

FRAME DOOR

BARRIER-SCREEN*O

SUPPORTER BARRI-S*O

STOPPER HINGE*T AS

DOOR SEAL AS

BARRIER-SCREEN*I

GASKET DOOR

HOOK

SPRING HOOK

HANDLE DOOR

SCREW TAPPING

DESCRIPTION

ABS XR-401

GLASS 3.2T

PBT

KOC-970T1S

KOC-871C0S

GLASS 3.0T

PBT

POM

PW1

ABS XR-401

T2S PAN 4X12 PW SE

8

9

0 q

Fig. 8

Q’TY

1

1

1

1

1

1

1

1

1

1

2

REMARK

14

8. Method to reduce the gap between the door seal and the oven front surface.

(1) To reduce gap located on part ‘A’.

1) Remove the cabinet.

2) Loosen a screw on top door hinge, then push the door to contact the door seal to oven front surface.

3) Tighten a screw.

A D

Grill Combi +1 min

Pie Temp +10 sec

Auto Cook

1. Roast Beef

2. Roast Pork

3. Roast Chicken

4. Fish Fillets

5. Vegetable

STOP/

CLEAR

START

M/W

+ Speedy

Defrost

-

Clock

TIME/WEIGHT

B C

(2) To reduce gap located on part ‘B’.

1) Loosen a screw on bottom hinge, then push the door to contact the door seal to oven front surface.

2) Tighten a screw.

(3) To reduce gap located on part ‘C’.

1) Remove the cabinet.

2) Loosen a screw on interlock switch assembly located bottom of oven body.

3) Draw the interlock switch assembly inward as possible to engage with hook on the door bottom.

4) Tighten a screw.

(4) To reduce gap located on part ‘D’.

1) Remove the cabinet.

2) Loosen a screw on interlock switch assembly located top of oven body.

3) and 4) are same as step (3).

NOTE : Small gap may be acceptable if the microwave leakage does not exceed 1mW/cm

2

.

NOTE : The door on a microwave oven is designed to act as an electronic seal preventing the leakage of microwave energy from the oven cavity during the cook cycle. This function does not require that the door be air-tight, moisture (condensation) - Tight or light-tight. Therefore, the occasional appearance of moisture, light or the sensing of gentle warm air movement around the oven door is not abnormal and do not of themselves, indicate a leakage of microwave energy from the oven cavity. If such were the case, your oven could not be equipped with a vent, the very purpose of which is to exhaust the vapor-laden air from the oven cavity.

15

9. To remove tray motor and under Heater. (Refer to Fig. 9)

1) Cut the tray motor cover parts from the base plate (Refer to Fig. 9).

2) Remove two screws

7 which secure the tray motor

6 and supporter to tray motor bracket

4

.

3) Remove three screws

1 and under heater assembly

2 in cavity.

1

2

4

M/W

Clock

Defrost

-

TIME/WEIGHT

M/W

DEFROST

GRILL COMBI WEIGHT TIME

Pie

Auto Cook

1. Roast Beef

2. Roast Pork

3. Roast Chicken

4. Fish Fillets

5. Vegetable

STOP/

CLEAR

START

+

Speedy

Grill kg

AUTO

COOK

PIE TEMP

COOK

Combi

+1 min

Temp +10 sec

3

5

6

7

CUTTING(5EA)

Fig. 9

16

10. To remove grill heater assembly. (Refer to Fig. 10)

3

4

2

1

Fig. 10

1) Remove the cabinet.

2) Release two screws

1

, and remove the Top cover

2

.

3) Release a screws

3

, and remove Air Guide outlet

4

.

4) Release the above steps for reassembly.

17

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 check continuity with the AC plug removed. To do otherwise may result in a false reading or damage to your meter.

NOTE : When 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.

(TROUBLE 1) Oven does not operate at all ; any inputs can not be accepted.

Condition

Fuse blows

Check

Check continuity of interlock monitor switch with door closed

(COM

¡Œ

NC)

Result

(COM

¡Œ

NC)

Continuity

(COM

¡Œ

NC)

No

Continuity

Cause

Malfunction of interlock monitor switch

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

No

Continuity

Continuity

Malfunction of interlock switch

Remedy

Replace

Note 1.

Replace

Note 1.

Check continuity of primary interlock switch contact with door partially open until interlock monitor switch contact close

(COM

¤Q

NC close)

Check continuity of primary winding of low voltage transformer

Continuity

0

Ω or infinite

Approx.

150~210

(normal)

Shorted contacts of primary interlock switch.

Defective low voltage transformer

Disconnect high voltage fuse and operate the unit

Fuse again blows

Defective high voltage transformer

Replace

Note 1.

Replace

Replace

18

Condition

Outlet has proper voltage.

Fuse does not blow.

Check

Check continuitymagnetron

Result

No

Continuity

Cause

Defective magnetron

Remedy

Replace

Check continuity of noise filter board

Check continuity of power supply cord

No

Continuity

No

Continuity

Normal

Defective line filter board

Open power supply cord

Defective touch control circuit

Replace

Adjust.

Adjust.

NOTE1 : All these switches must be replaced at the same time, please refer to page 17 for adjustment instructions

(TROUBLE 2) Grill Heater (Top heater) does not heat (Food will not become hot).

Condition Check Result Cause

Grill heater is not heated

Check continuity of primary interlock switch

No

Continuity

Malfunction of Primary

Interlock Switch

Check continuity of secondary interlock switch

Check continuity of heater

No

Continuity

No

Continuity

Malfunction of secondary interlock switch

Defective heater

Check D.C. voltage being supplied to

RELAY (RY2) coil

0V

Defective touch control circuit

Approx.

13VDC

Faulty contacts of

RELAY (RY2) or open relay coil

Replace

Replace

Replace

Remedy

Adjust or replace

Adjust or replace

19

(TROUBLE 3) No microwave oscillation even though fan motor rotates.

Condition Check Result

No microwave oscillation

Check continuity of high voltage fuse

No

Continuity

Replace high voltage fuse

Check continuity of high voltage capacitor terminals with wires removed

Check continuity of high voltage rectifier in forward and backward direction with DC megger

Continuity

Continuity in backward direction

Connect megger leads to magnetron terminal and magnetron body

Continuity

0

Ω or

Check resistance of primary and secondary coil of high voltage transformer

Check continuity of magnetron with wires removed

No

Continuity

Cause

Defective high voltage transformer

Defective high voltage rectifier

Defective magnetron

Defective high voltage transformer

Defective magnetron

Check continuity of filament terminal of high voltage transformer

Check continuity of microwave select switch

No

Continuity

No

Continuity

Defective high voltage transformer

Defective timer ass’y

Check D.C. voltage being supplied to

RELAY (RY3) coil

0V

Approx.

13VDC

Defective touch control circuit

Faulty contacts or

RELAY (RY3) or open relay coil

20

Remedy

Replace

Replace

Replace

Replace

Replace

Replace

Replace

Replace

Replace

(TROUBLE 4) Display shows all figures selected, but oven does not start cooking, even though desired program and time are set and start pad is tapped.

Condition

Turn table motor, and oven lamp do not turn on

Check

Check continuity of primary interlock switch

Check continuity of secondary interlock and

D.O.M. switch

Result

No

Continuity

No

Continuity

Cause

Malfunction of

Primary interlock switch

Malfunction of secondary interlock and D.O.M. switch

Remedy

Adjust or replace

Adjust or replace

Check D.C. voltage being supplied to RELAY (4) coil.

0V

Defective touch control circuit

Replace

Approx.

13VDC

Faulty contacts of

RELAY (4) or open relay coil

Replace

(TROUBLE 5) Under Heater does not heat (Food will not become hot).

Condition

Under heater is not heated

Check

Check continuity of primary interlock switch

Result

No

Continuity

Check continuity of secondary interlock switch

Check continuity of heater

Check D.C. voltage being supplied to

RELAY (RY6) coil

No

Continuity

No

Continuity

0V

Approx.

13VDC

Cause

Malfunction of

Primary interlock switch

Remedy

Adjust or replace

Malfunction of secondary interlock switch

Adjust or replace

Defective Heater

Defective touch control circuit

Faulty contacts of

RELAY (RY6) or open relay coil

Replace

Replace

Replace

21

(TROUBLE 6) The following visual conditions indicate a probable defective touch control circuit or membrance switch assembly

1 1. Incomplete segments,

(A) Segments missing.

(B) Partical segments missing.

(C) Digit flickering other than normal fluorescent slight flickering.

(D) 0 does not display when power is on.

1 2. A distinct change in the brightness of one or more numbers is the display.

1 3. One or more digits in the display are not on when they should be.

1 4. Display indicates a number different from one touched.

1 5. Specific numbers (for example 2 or 3) will not display when the panel is touched.

1 6. Display does not count down or up with time cooking or clock operation.

1 7. Oven is programable and cooks normally but no display shows.

1 8. Display obviously jumps in time while counting down.

1 9. Display counts down noticeably too fast while cooking.

10. Display does not show the time of day when clear pad is touched.

11. Oven lamp and turntable motor do not stop although cooking is finished. Check if the RELAY "4" contacts close if they are close, replace touch control circuit.

DEFROST

M/W GRILL COMBI WEIGHT TIME

AUTO PIE TEMP kg

COOK COOK

Condition

Display does not show programming at all, even if keyboard is touched.

Check

Check each button for continuity of the button keyboard for the following keyboard check procedure

Result

Normal

Abnormal

Cause

Malfunction of touch control circuitry of control box sub-assembly

Malfunction of the button keyboard

Remedy

Replace control box subassembly

Replace the button keyboard

NOTE1 : Before following the particular steps listed above in the trouble shooting guide for the button keyboard's, failure, please check for the continuity of each wire-harness between the button keyboard and P.C.B.

assembly.

22

BUTTON KEYBOARD CHECK PROCEDURE

1. Type of encoding and button names.

5

6

7

53

52

51

50

SW101

GRILL

2

SW107

AUTO

COOK

4

SW103

+min

6

SW106

+10sec

8

10

SW109

STOP/

CLEAR

SW108

START

12 14

SW104

PIE

SW111

DEFROST

SW102

COMBI

SW105

TEMP

SW110

M/W

SW112

CLOCK

RA3 RGLD7X104J CA1 B7102M

Fig. 11 Key Matrix and circuit diagram

The button keyboard consists of 12 keys whose configurations are described above and provides 8 pad terminations to be connected to the touch control circuit as in Fig. 11.

2. Key check procedure.

To determine if the button keyboard is defective or not, check the continuity of each button (Key) contacts with a multimeter.

1) AUTO COOK

2) DEFROST

3) ˚C, TEMP

4) MICROWAVE

5) COMBI

6) GRILL

7) +10 SEC

8) +1 MIN

9) STOP/CLEAR

10) START

11) CLOCK

12) PIE button : Between 4 and 10 button : Between 4 and 14 button : Between 8 and 12 button : Between 6 and 14 button : Between 6 and 12 button : Between 2 and 10 button : Between 8 and 10 button : Between 6 and 10 button : Between 2 and 12 button : Between 4 and 12 button : Between 8 and 14 button : Between 2 and 14

23

MEASUREMENT

1. Microwave Output Power

1-1. Standard Method

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.

1) Microwave power output measurement is made with the microwave oven supplied at rated voltage and operated at its maximum microwave power setting with a load of

1,000

¡

5cc of potable water.

2) The water is contained in a cylindrical borosilicate glass vessel having a maximum material thickness of 3 mm 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 prior to the start of the test.

The initial temperature of the water is 10

¡ 2 ¡

(50

¡

3.6

¢

)

It is measured immediately 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. (fig. 12).

4) Microwave power is switched on.

5) Heating time should be exactly 46 seconds.

Heating time is measured while the microwave generator is operating at full power.

6) The initial and final water temperatures are selected so that the maximum difference between the ambient and final water temperatures is 5K.

7) The microwave power output P in watts is calculated from the following formula :

P=4187

¡¿¡

T/t

¡ ¡

T is actual temperature rise.

¡ t is the heating time.

The power measured should be 900W

¡

10%

CAUTION :

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

2. Input power voltage should be exactly volts as specified.

3. Ambient temperature should be 20

¡

2

¡

(68

¡

3.6

¢

)

2. Electrical Continuity Check of Interlock

Switch

2-1. Procedure

NOTE : Remove the power plug from the wall receptacle before testing.

1) Primary Interlock Switch

1) Disconnect two connector from Primary Interlock Switch.

2) Connect the ohm-meter leads between the terminals of the primary interlock switch.

3) Read the value of resistance between the terminals of the switch, when the door is opened, and when the switch, when the door is opened, and when the door is closed.

2) Secondary Interlock Switch

1) Disconnect two connector from secondary interlock switch.

2) Connect the ohm-meter leads between the terminals of the secondary interlock switch.

3) Read the value of resistance between the terminals of the switch, when the door is opened, and when the oven door is closed.

Water Load

Tray

3) Interlock Monitor Switch

1) Disconnect the lead wire connecting the primary interlock switch and interlock monitor switch from primary interlock switch terminal.

2) Connect the ohm-metor leads between the lead wire connector disconnected as item '1' and the power supply natural plug pin.

3) Read the value of resistance between the lead wire connector and the power supply natural plug pin, when the oven door is opened, and when the oven door is closed.

24

2-2. Judgement

The value of resistance should be applied to the value specified below.

Door

Primary Interlock Switch

Secondary Interlock Switch

Interlock Monitor Circuit

Open

0

Closed

0

0

3-3. Procedures

1) Prepare 600cc glass or plastic container.

2) Pour 275

¡

15 milliliters of tap water initially at 68

¡

9

¢

(20

¡

5

¡

) in the container.

3) Place it at the center of the tray and set it is a cavity.

4) Operate oven.

5) Measure the microwave leakage using a Narda 8100 or similarly approved microwave leakage meter after a few minutes operation.

3. Microwave Leakage Test

3-1. Warning

1) DO NOT place your hands into any suspected microwave leakage field unless the safe density level is known.

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

3) Slowly approach the unit under test until the radiometer reads and appreciable leakage from the unit under test.

4) Care should be taken not to place the eyes in direct line with the source of microwave energy.

3-2. Method

The power density of the microwave leakage emitted by the microwave oven should not exceed 1mW/

§† at any point

50mm (2 in). or more away from the external surface of the oven as measured prior to acquisition by a purchaser and there after once the oven is in use, 4mW/

§† at any point

50mm (2 in) or more away from the external surface of the oven, checks to be made around the whole of the door seal and on each of the main unit surface.

Measurements should be made with the oven operating at its maximum output and containing a load of 275

¡

15 milliliters of tap water initially at 68

¡

9

¢

(20

¡

5

¡

) placed within the cavity at he center of the load carrying surface provided by the manufacture. The water container should be a low from 600 milli-liters beaker having an inside diameter of approximately 85mm (3-11/32 in.) and made of an electrically nonconductive material such as glass or plastic.

NOTE : The scan rate should not exceed 1 inch/sec.

Fig. 13

Grill Combi +1 min

Pie Temp +10 sec

Auto Cook

1. Roast Beef

2. Roast Pork

3. Roast Chicken

4. Fish Fillets

5. Vegetable

STOP/

CLEAR

START

M/W

+ Speedy

Defrost

-

Clock

TIME/WEIGHT

25

COMPONENT TEST PROCEDURE

1. High voltage is present at the high voltage terminal of the high voltage transformer during any cook cycle.

2. It is neither necessary nor advisable to attempt measurement of the high voltage.

3. Before touching any oven components or wiring, always unplug the oven from its power source and discharge the capacitor (see page 20).

1. High voltage transformer

(A) Remove connections from the transformer terminals and check continuity.

(B) Normal readings should be as follows:

Secondary winding

Filament winding

Primary winding

Approx. 100

¡

10%

Approx. 0

Approx. 0

Filament terminal

4. Magnetron

For complete magnetron diagnosis, refer to "Measurement of the Microwave Output Power".

Continuity checks can only indicate and open filament or a shorted magnetron. To diagnose for an open filament or shorted magnetron.

(A) Isolate magnetron from the circuit by disconnecting the leads.

(B) A continuity check across magnetron filament terminals should indicate one ohm or less.

(C) A continuity check between each filament terminal and magnetron case should read open.

Primary terminal

Metallic gasket plate

Magnetron antenna

Magnetron chassis ground

Secondary terminal

Filament terminal

2. High voltage capacitor

A) Check continuity of capacitor with meter on the highest ohm scale.

(B) A normal capacitor will show continuity for a short time, and then indicate 9M

Ω once the capacitor is charged.

(C) A shorted capacitor will show continuous continuity.

(D) An open capacitor will show constant 9M

.

(E) Resistance between each terminal and chassis should be infinite.

3. High voltage diode

The high voltage diode is located on the base near the transformer.

(A) Isolate the diode from the circuit by disconnecting the leads.

(B) 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-to-back resistance may be read in both directions. A normal diodes resistance will be infinite in one direction and several hundred K

Ω in the other direction.

26

WIRING DIAGRAM

27

SCHEMATIC DIAGRAM

IDLE CONDITION

MICROWAVE COOKING CONDITION

28

GRILL COOKING CONDITION

COMBI COOKING CONDITION

29

CONVECTION COOKING CONDITION

30

EXPLODED VIEWS AND PARTS LIST

NO NAME

1 CAVITY AS

2 REAR-PLATE *0

3 DOOR AS

SPECIFICATION

KOC-870T0S

SBHG-1 T0.6

KOC-870T0S

PART CODE

3516108630

3516503900

3511708840

4 CONTROL-PANEL AS

5 COVER WAVE GUIDE

6 SCREW TAPPING

KOC-870T0S

KOC-870T5S

MICA TO.5

T1 BIN 4X8 MFNI

7 BRACKET MOTOR SYNCRO SBHG-1 TO.8

8 COUPLER TEFLON

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

MOTOR SYNCHRO

SCREW TAPPING

SCREW TAPPING

HEATER *U AS

SCREW TAPPING

BASE

STOPPER HINGE *U AS

SCREW SPECIAL

FOOT

CAPACITOR HV

HOLDER HV CAPACITOR

SCREW SPECIAL

DIODE HV

NOISE FILTER

FUSE HV

24 SCREW SPECIAL

25 CLAMP WIRE

26 SCREW SPECIAL

27 TRANS HV

28 SCREW SPECIAL

29 SCREW SPECIAL

30 LOCK

31 LAMP

32 SW MICRO

33 SW MICRO

34 LEVER LOCK

35 SCREW SPECIAL

36 SCREW SPECIAL

37 SCREW SPECIAL

38 COVER INSULATOR *T

39 HEATER *T

40 PROTECTOR WIRE

41 PROTECTOR HEATER

42 SCREW SPECIAL

43 MAGNETRON

44 SCREW SPECIAL

45 FAN

46 COVER *B

47 MOTOR SHADED POLE

48 SCREW TAPPING

49 SCREW TAPPING

50 GUIDE AIR OUTLET

51 SCREW SPECIAL

52 SCREW SPECIAL

53 SENSOR TEMPERATURE

54 SCREW TAPPING

55 CORD POWER AS

230V 25W GM-16-24FD16

T2S PAN 4X8 MFZN

T1 BIN 4X8 MFNI

KOC-971C0S

T1 BIN 4X8 MFNI

SBHG T0.8

KOR-121M0A

TT2 TRS 4X8 SE MFZN

PP, DASF-310

2100VAC, 1.1µF

SECC T0.8

TT2 TRS 4X8 SE MFZN

3510604700

3517401400

3966510200

7121400811

7113400814

3512802100

7113400814

3510311000

3515202800

7S422X4081

3512101400

4416W67820

441X304112

7S422X4081

SANKEN HVR-1X-32B(D5.3) 4416V24000

DWLF-M05(KOC-870T0S) 3518605301

DWLF-M07(KOC-870T5S)

5KV 0.7A THV 060T

TT2 TRS 4X8 SE MFZN

SBHG

T1 TRS 4X10 SE MFZN

DY-N90S0-87T

TT2 HEX FG 4X10 SE MFZN

T1 TRS 4X10 SE MFZN

POM

BL 240V25W T25 C7A H187

SZM-V16-FA-63

SZM-V16-FA-61

POM

3518605500

3518700200

7S422X4081

3511200400

7S312X40A1

3518111000

7S427W40A1

7S312X40A1

3513805710

3513601600

5S762S10G0

5S762310G0

3513701300

T2S PAN 4X12 PW SE MFZN 7S341W40B1

T2S PAN 4X12 PW SE MFZN

T1 TRS 4X10 SE MFZN

SECC T0.5

115V 550W QUARTZ

STS430

MICA T1.0

T1 TRS 4X10 SE MFZN

2M218H(MF) I

T2 FLANGE 5X8 MFZN

PP GF20

SBHG T0.8

230V17W MW15CA-K02

T2S PAN 4X8 MFZN

PAN FLANGE 4X8 MFZN

SA1D T0.5

T1 TRS 4X10 SE MFZN

TT2 HEX FG 4X10 SE MFZN

PTM-K312-D4

T1 BIN 4X8 MFNI

3X1.5 40X40 120-TML

PCKPSWP700

PKCPSWP720

3511403800

7113400814

7S341W40B1

7S312X40A1

3511405000

3512803000

3517502700

3517502700

7S312X40A1

3518002200

7S327W5081

3511800100

3511402500

3963513900

7121400811

7S101W4081

3512515500

7S312X40A1

7S427W40A1

3514800800

7113400814

35113ACSJ5

56

57

58

59

60

61

62

SCREW SPECIAL

THERMOSTAT

SCREW TAPPING

CABINET

SCREW SPECIAL

GUIDE TRAY AS

TRAY METAL

3X1.0 40X40 120-TML

TT2 TRS 4X8 SE MFZN

100/90

T2S PAN 3X8

PCM T0.6

T1 TRS 4X10 SE MFZN

KOC-871C0S

SPP T0.6

35113BCSM5

7S422X4081

3518905000

7121300811

3510800800

7S312X40A1

3512516100

3517205600

1

3

1

1

1

1

1

1

1

1

2

1

1

1

2

2

1

1

1

1

2

1

2

2

1

2

1

1

1

2

2

1

1

1

4

5

1

1

1

1

1

1

1

1

1

1

4

1

1

2

3

1

1

1

1

2

1

1

1

1

1

1

Q'TY

1

1

1

31

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)

PRINTED WIRING BOARD

1.CIRCUIT CHECK PROCEDURE

1) Low voltage transformer (DMR-101FS) check.

The low voltage transformer is located on the P.C.B.

Measuring condition: Input voltage: 230VAC/50Hz

1 4

5

6

7

8

10

2

Terminal

1-2

4-5

6-7

8-10

Voltage

230.0V

13.0V

35.0V

3.0V

NOTE 1 : Secondary side voltage of the low voltage transformer changes in proportion to fluctuation of power source voltage.

NOTE 2 : The allowable tolerance of the secondary voltage is within

¡

5% of nominal voltage.

2) Voltage Check

KMICOM PIN>

NO.

1

2

3

CHECK POINT

PIN 63, 64

PIN 29, 32, 62

PIN 45

4 PIN 30, 31

0V

-

5VDC

¡

5%

0V

-5V

T

5V

0V

T

REMARK

T: 20 ms (50 Hz)

T=0.25us (4.0MHz)

DISPLAY PIN

PIN 1 & 25

CHECK METHOD

NO.

1

2

3

MEASURE POINT

MP 1

MP 2

MP 3

2.6VAC (Display filament voltage)

WAVE FORM

-

5V DC

-

12V DC

£›

27V DC

REMARK

Replace R24, J3, Q10

Replace D1~D6, J8

Replace R28, R29, ZD4

NOTE :

Each measure point must be measured with GND points.

32

3) Display problems

NO

1

2

3

CAUSE

Poor contact between P.C.B.

and display filament.

The display has some trouble in its segment or gril.

Loss vacumm in the display.

MEASUREMENT

Check the voltage of display pin

1 & 25

Refer to “The display trouble shooting data” below

Find white spot.

RESULT

2.6VAC

REMEDY

Fix the pin 1 & 25 on the P.C.B.

Replace P.C.B.

assembly.

Replace P.C.B.

assembly.

The display trouble shooting data.

TROUBLE

M/W & AUTO COOK don’t come on.

GRILL & PIE don’t come on.

COMBI & TEMP COOK don’t come on.

WEIGHT DEFROST & Kg don’t come on.

TIME DEFROST doesn’t come on.

Segment “a” doesn’t come on from G1 to G5.

Segment “b” doesn’t come on from G1 to G5.

Segment “c” doesn’t come on from G1 to G5.

Segment “d” doesn’t come on from G1 to G5.

Segment “e” doesn’t come on from G1 to G5.

Segment “f” doesn’t come on from G1 to G5.

Segment “g” doesn’t come on from G1 to G5.

Segment “h” doesn’t come on from G1 to G5.

Segment “i” doesn’t come on from G1 to G5.

DISPLAY NAME & PIN NO.

MICOM OUTPUT IN PIN NO.

Grid 1 (G1), 21

Grid 2 (G2), 17

24

17

Grid 3 (G3), 14

Grid 4 (G4), 10

Grid 5 (G5), 4,7

Segment a, 23

18

16

13

26

Segment b, 22

Segment c, 20

Segment d, 19

Segment e, 18

Segment f, 16

Segment g, 15

Lower bar h, 5

Upper bar i 6, 8, 9 ,11

25

23

22

21

20

19

14

15

33

MP1

MP2

MP3

Fig. 18 Measurement Point

34

35

4) When there is no microwave oscillation.

(1) When touching “M/W” button, oven lamp turns on.

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

* Cause : Relay 3 (RY3) dose not operate.

B

Q7 KRA106M

RY3

G5J-1-TP-M-DT

MAGNETRON

D3

1N4148

A

40

-12V

CHECK METHOD

STAGE

RY3 “ON”

RY3 “OFF”

POINT

A

-

5VDC

GND

(2) When touching “M/W” button, oven lamp dose not turn on.

Turntable motor dose not rotate, but cook indicator in display comes on.

* Cause : Relay 4 (RY4) dose not operate.

B

RY4

G5B-1

TRAY MOTOR, LAMP

D4

1N4148

-12V

CHECK METHOD

POINT

A

STAGE

RY4 “ON”

RY4 “OFF”

-

5VDC

GND

(3) When touching “M/W” button, oven lamp turns on.

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

* Cause : Relay 5 (RY5) dose not operate.

B

Q8 KRA106M

Q9 KRA106M

RY5

G5B-1

FAN MOTOR

D5

1N4148

-12V

36

A

A

42

B

GND

-

12VDC

41

B

GND

-

12VDC

CHECK METHOD

POINT

A

STAGE

RY5 “ON”

RY5 “OFF”

-

5VDC

GND

5) When there is not upper heater.

When touching “TEMP COOK & COMBI” button, oven lamp turns on.

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

* Cause : Relay 2 (RY2) dose not operate.

B

Q6 KRA106M

RY2

G5J-1-TP-M-DT

UPPER HEATER

D2

1N4148

-12V

CHECK METHOD

STAGE

RY2 “ON”

RY2 “OFF”

POINT

A

-

5VDC

GND

6) When there is not lower heater.

When touching “TEMP COOK & PIE” button, oven lamp turns on.

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

* Cause : Relay 6 (RY6) dose not operate.

B

Q11 KRA106M

RY6

G5B-1

LOWER HEATER

D6

1N4148

A

B

GND

-

12VDC

39

B

GND

-

12VDC

A

43

-12V

CHECK METHOD

STAGE

RY6 “ON”

RY6 “OFF”

POINT

A

-

5VDC

GND

B

GND

-

12VDC

37

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

B A

1

2

CN1

35313-0210

D.O.M

R11

20K

R9 4.7K

C5

104

R10 330

C6

104

R22

100K

1/4W

47

CHECK METHOD

STAGE

Door opened

Doop closed

POINT

A

Open

Closed

B

-5VDC

GND

NOTE : Check the state of the secondary interlock switch.

8) When “ ” comes on display.

R4

10K

AC

1N4148D7

C3

473

A

R7 4.7K

C2

473

R5 10K

B

R6

4.7K

Q2

A1266Y

C4

104

C

45

V1

CHECK METHOD

POINT WAVEFORM

A

B

C

0V

-5V

T if clock does not keep exact time, you must check. Diode D7, transistor Q2.

4

D10

D9

AC

5

D11

D8

1N4002X4

38

P.C.B CURCUIT DIAGRAM

39

P.C.B. LOCATION NO.

NO.

SYMBOL SYMBOL SPECIFICATION PART CODE Q’TY REMARK

7

8

5

6

3

4

1

2

PCB MAIN

TRANS POWER

M208

LVT1

HOLDER VFD

R CARBON FILM R17

R CARBON FILM R22

R CARBON FILM R13,18,21

R CARBON FILM R28,29

R CARBON FILM R12,19,20,27,30

9 R CARBON FILM R31

10 R CARBON FILM R11

11 R CARBON FILM

12 R CARBON FILM

R3,4,14,15

R5,6,7,9

13 R CARBON FILM

14 R CARBON FILM

15 R CARBON FILM

16 R CARBON FILM

R2,8

R10

R16

R1

17 R CARBON FILM

18 R CARBON FILM

19 BUZZER

20 DIGITRON

R23

R24

BZ1

DP1

21 DIODE SWITCHING D7

22 DIODE SWITCHING D2~D6

23 DIODE RECTIFIER D8~D12

24 DIODE ZENER ZD1

25 DIDOE ZENER

26 DIODE ZENER

27 C ELECTRO

28 C ELECTRO

29 C ELECTRO

30 C ELECTRO

31 C ARRAY

32 C CERA AXIAL

33 C CERA AXIAL

34 C CERA AXIAL

C10,11

C2,3

35 CONNECTOR WAFER CN1

36 CONNECTOR WAFER CN2

1/4W, 10K OHM F

1/4W, 120K OHM F

BM-20K

SVM-5SS13(S/S)

1N4148M

1N4148

1N4002A

MTZ 3.9B

ZD2

ZD3

ZD4

EC1

UZ-5.6B

MTZ 27B

MTZ 4.7B

RS 50V 10uF

EC4

EC2, EC3

RSS 35V 1000uF

RSS 50V 220uF

CA1 8P(7) 50V 1000pF

C1,C4,C5~C9,C12~C14 H1KF 50V 0.1uF Z

H1KF 50V 1000pF Z

H1KF 50V 0.047uF Z

35313-0210

35312-0310

92X195

DMR-101FS

PP

1/4W, 4.7K OHM J

1/4W, 100K OHM J

1/4W, 10K OHM J

1/4W, 2K OHM J

1/4W, 1K OHM J

1/4W 4.7 OHM J

1/6W, 20K OHM J

1/6W, 10K OHM J

1/6W, 4.7K OHM J

1/6W, 1K OHM J

1/6W, 330 OHM J

1/6W, 510 OHM J

1/6W, 100 OHM J

37 CONNECTOR FILM CN3 HLEM15S-1 4CW215SBD0 1

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)

40

RN-4Z1002F

RN-4Z1203F

3515600100

DSVM5SS13-

DZN4148M--

DZN4148--

DZN4002A--

DZTZ3R9B--

DZTZ5R6B--

DZTZ27B---

DZTZ4R7B---

CEXE1H100A

CEXF1V102V

CEXF1H221V

CN7XB-102M 2

CCKF1H104Z 10

1

2

1

1

1

1

CCZF1H102Z

CCKF1H473Z

30166M7020

30166M5030

1

1

2

2

5

1

1

5

1

1

1

1

3514314920

5EPV041351

3513002600

RD-4Z472J-

RD-4Z104J-

RN-4Z103J-

RD-4Z202J-

RD-4Z102J-

RD-4Z479J-

RD-AZ563J-

RD-AZ103J-

RD-AZ472J-

RD-AZ102J-

RD-AZ331J-

RD-AZ511J-

RD-AZ101J-

1

1

2

1

4

4

1

1

2

5

1

3

1

1

1

1

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)

NO.

SYMBOL SYMBOL

38 CONNECTOR WAFER CN4

39 TRAMSOSTPR Q1,Q2,Q10

40 TRANSISTOR

41 TRANSISTOR

Q3,Q4

Q6,Q7,Q8,Q9,Q11

42 RESONATOR

43 IC MICOM

44 RELAY

45 RELAY

CR1

IC1

RY4~RY6

RY2~RY3

RA1~RA3 46 R ARRAY

47 WIRE FLAT

48 JUMPER WIRE

49 JUMPER WIRE

50 JUMPER WIRE

J1,3~6, 8~10

J2,J7

R26

SPECIFICATION

35328-0610

KTA1266Y

KRC106M

KRA106M

CST4.00MGW

MB89143

G5B-1-12V

G5J-1-TP-M-DT 12V

RGLD7X104J

1.25X15X90XC

1/0.52 TIN COATING

1/0.52 TIN COATING

1/0.52 TIN COATING

PART CODE Q’TY REMARK

4CW3061MX0 1

TZTA1266Y3

TZRC106M--

TZRA106M--

2

5

5PCST400MG 1

141SC970T0 1

5SC0101110

5SC0101112

3

2

RA-88X104J

WSJ-159007

85801052GY

85801052GY

85801052GY

8

2

3

1

1

10mm

5mm

5mm

SUB PCB

NO.

SYMBOL

1 PCB SUB

2 COVER LED

3 LED

4 LED

5 R CARBON FILM

6 SWITCH TACT

7 SW ROTARY

SYMBOL

M209

LD101

LD102

R101,R102

SW101~SW112

EN101

8 CONNECTOR FILM CN101

9 JUMPER WIRE J102,103,104,105

10 JUMPER WIRE J101

SPECIFICATION

86X159.5

PP

DLS0-5013T

SLR-34VR

1/4W, 2K OHM J

KPT-1115AM

SDB161PVB17F-1-2

-36-36PC(PINCH 5)

HLEM 15R-1

1/0.52 TIN COATING

1/0.52 TIN COATING

PART CODE Q’TY REMARK

3514314930

3511404600

DLS0-5013T

DSLR34VR--

RD-4Z202J-

5S50101Z93

5S10109002

1

1

1

1

2

12

1

4CW215RBD0 1

85801052GY 4

85801052GY 1

10mm

5mm

41

S/M NO. : C870T0S003

DAEWOO ELECTRONICS CO., LTD.

686, AHYEON-DONG MAPO-GU SEOUL, KOREA

C.P.O. BOX 8003 SEOUL, KOREA

TELEX: DWELEC K28177-8

CABLE: “DAEWOOELEC”

FAX: 02) 360-8184

TEL: 02) 360-8183

E-mail : [email protected]

PRINTED DATE: Nov. 1999

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