Text preview for : MC C1010T.pdf part of Daewoo KOC-924T9A Service Manual Microwave Oven - pag. 39
Back to : MC C1010T.pdf | Home
S/M No. : C924T9A001
Service Manual
Microwave Oven
Model: KOC-924T9A
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
Feb. 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 microwave source, and make repairs if 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 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.
TABLE OF CONTENTS
1. PROPER USE AND SERVICE PRECAUTIONS .........................................................................................................2 2. SPECIFICATIONS ........................................................................................................................................................3 3. EXTERNAL VIEW.........................................................................................................................................................4 3-1. OUTER DIMENSION ..........................................................................................................................................4 3-2. FEATURE DIAGRAM .........................................................................................................................................5 4. INSTALLATION ............................................................................................................................................................6 5. CONTROL PANEL .......................................................................................................................................................7 6. DISASSEMBLY AND ASSEMBLY ..............................................................................................................................8 7. INTERLOCK MECHANISM AND ADJUSTMENT.....................................................................................................17 8. TROUBLE SHOOTING GUIDE ..................................................................................................................................18 9. MESUREMENT AND TEST .......................................................................................................................................23 9-1. MEASUREMENT OF THE MICROWAVE POWER OUTPUT ........................................................................23 9-2. MICROWAVE RADIATION TEST ....................................................................................................................24 9-3. COMPONENT TEST PROCEDURE................................................................................................................25 9-4. COMPONENT ACTION....................................................................................................................................26 10. WIRING DIAGRAM...................................................................................................................................................27 11. EXPLODED VIEW AND PARTS LIST .....................................................................................................................29 11-1. DOOR ASSEMBLY.........................................................................................................................................29 11-2. CONTROL PANEL ASSEMBLY.....................................................................................................................29 11-3. TOTAL ASSEMBLY ........................................................................................................................................29 12. PRINTED CIRCUIT BOARD ....................................................................................................................................32 13. P.C.B CIRCUIT DIAGRAM.......................................................................................................................................36
1
1. PROPER USE AND SERVICE PRECAUTIONS
CAUTION
This device is to be Serviced only by Properly Qualified Service Personel. 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 have excessive emission level 5mw/cm2, the service person should: (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.
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 PASKETS MUST BE SECURE. NEVER OPERATE THE DEVICE WITHOUT A MICROWAVE ENERGY ABSORBING LOAD ATTACHED. NEVER LOOK INTO AN OPEN SAVEGUIDE OR ANTENNA WHILE THE DEVICE IS ENERGIZED.
2
2. SPECIFICATIONS
MODEL POWER SUPPLY MICROWAVE POWER CONSUMPTION GRILL CONVECTION COMBINATION MICROWAVE ENERGY OUTPUT MICROWAVE FREQUENCY OUTSIDE DIMENSIONS (W X H X D) CAVITY DIMENSIONS (W X H X D) NET WEIGHT TIMER FUNCTION SELECTIONS POWER SELECTIONS CAVITY VOLUME * Specifications are subject to change without notice. KOC-924T9A 230V~50HZ, SINGLE PHASE WITH EARTHING 1500W 1150W 2550W 3000W 1000W(IEC705) 2450MHz 542X329X515mm (21.3X13.0X20.3 in.) 350X230X355mm (13.8X9.1X14.0 in.) APPROX. 20kg (44.1 lbs.) 60 minutes MICROWAVE/ GRILL/ CONVECTION/ COMBINATION 10 LEVELS 1.0 Cu. Ft
3
3. EXTERNAL VIEW
1. OUTER DIMENSION
542
515
329
4
2. FEATURE DIAGRAM
11.DOOR HOOK When the door is closed, it will automatically lock shut. If door is opened while oven is operating, the magnetron will immediately stop operating. 12.DOOR VIEWING SCREEN Allows viewing of food. The screen is designed so that light can pass through, but not the microwave. 13.METAL RACK 14.TOP HEATER Turns on when convection, grill and combi cooking is selected. 15.OVEN LAMP Automatically turns on during oven operating. 16.SAFETY INTERLOCK SYSTEM 17.CONTROL PANEL 18.TURNTABLE TRAY Rotates during cooking and ensure even distribution of Microwaves. It can also be used as a cooking utensil. 19.ROLLER GUIDE This must always be used for cooking together with the turntable tray. 10. COUPLER This fits over the shaft in the center of the ovens cavity floor. This is to remain in the oven for all cooking. 11. CONVECTION OUTLET & FAN 12. OVEN FRONT PLATE 13.DOOR SEAL Door seal maintains the microwave energy within the oven cavity and prevents microwave leakage.
5
4. 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. 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 · Check your local power source. This microwave oven requires a current of approximately 13 amperes, 120Volts, 60Hz grounded outlet. · Power supply cord is about 0.8 meters long. 1. A short power-supply cord is provided to reduce the risks resulting from becoming entangled in or tripping over a longer cord. 2. Longer cord sets or extension cords are available and may be used if care is exercised in their use. 3. If a long cord or extension cord is used: 1) The marked electrical rating of the cord set or extension cord should be at least as great as the electrical rating of the appliance. 2) The extension cord must be a grounding type 3-wire cord. 3) The longer cord should be arranged so that it will not drape over the counter top or tabletop where it can be pulled on by children or tripped over unintentionally.
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.
6
5. CONTROL PANEL
MW
Grill
Combi
Defrost Weight Time
1
Auto Cook
Lock Convection
lb
Auto Cook Menu
1. 2. 3. 4. 5. Roast pork Roast beef Roast chicken Baked fish Fresh vegetable
Auto cook
2
Combi
3
Grill
Weight Defrost
4
Time Defrost MW
5 6
Clock Convection
7 9
Time /W e
antity t Qu igh
8
0
STOP/CLEAR
START / SPEEDY COOK
w
q
1 Display : Cooking time, power level, indicators and present time are displayed. MW : When blinking, the oven is operating in MICROWAVE COOK. Grill : When blinking, the oven is operating in GRILL. Combi : When blinking, the oven is operating in COMBI. Defrost Weight : When blinking, the oven is operating in WEIGHT DEFROST. Time : When blinking, the oven is operating in TIME DEFROST. Auto-cook : When blinking, the oven is operating AUTO COOK. Lock : When lighting, the oven is CHILD LOCK. Con-vection : When blinking, the oven is operating in CONVECTION. lb : When blinking, the oven is operating in weight input mode. 2 Auto cook : Used to cook or reheat. 3 Combi : Used to select combi.
4 Weight Defrost : Used to defrost foods. 5 Grill : Used to select grill. 6 MW : Used to set power level of micro wave. 7 Time Defrost : Used to defrost foods. 8 Convection : Used to select convection and selected temp. 9 Clock : Used to set clock. 0 Dial knob : Used to set time, weight and quantity. q START/SPEEDY COOK : Used to start a programmed, also for speedy start(each press adds 30 seconds microwave cooking time). w STOP/CLEAR : Used to stop the oven operation or to delete the cooking data.
7
6. DISASSEMBLY AND ASSEMBLY
- 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 wear rubber gloves when servicing the high voltage side. 3. Discharge the high voltage capacitor before touching any oven components or wiring. (1) Check the grounding. Do not operate on a two-wire extension cord. The microwave oven is designed to be used while grounded. It is imperative, therefore, to make sure it is grounded properly before beginning repair work. (2) Warning about the electric charge in the high voltage capacitor. For about 30 seconds after the operation has stopped, 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 screwdriver to discharge. 4. When the 20A fuse is blown out due to the operation of the monitor switch; replace primary interlock switch, secondary interlock switch and interlock monitor switch. 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 replacing the magnetron.
WARNING : When servicing the appliance, take care when touching or replacing high potential parts because of electrical shock or exposing microwave. These parts are as follows - HV Transformer, Magnetron, HV Capacitor, HV Diode.
8
1. To remove cabinet
1) Remove four screws on cabinet back. 2) Push 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 assemby.
NOTE: After replacing the door assembly, perform a check of correct alignment with the hinge and cavity front plate.
9
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).
3. To remove door parts.
A10
A09
A08
A07
A11 A12 A04 A03 A13 A01 A02 A05 A06
REF NO. A01 A02 A03 A04 A05 A06 A07 A08 A09 A10 A11 A12 A13
PART CODE 3512603620 3511608300 3512204820 7001503011 3515101800 3513101200 3512302400 3516602200 3515304800 3517007000 3511608700 3511608400 3511608200
PART NAME HANDLE DOOR DECORATOR DOOR*R FRAME DOOR SCREW MACHINE SPRING HOOK HOOK GASKET DOOR DOOR PLATE SUPPORTER HINGE*T BARRIER-SCREEN*I DECORATOR DOOR*T DECORATOR DOOR*L DECORATOR DOOR*U S455C
DESCRIPTION SUS430 T0.5 H/L ALLOY PC+ABS PAN 5*30 MFZN PW1 POM PBT SBHG-3A T0.7 SCP-1 T2.0 TEMP GLASS T2.0 SUS430 T0.5 H/L SUS430 T0.5 H/L SUS430 T0.5 H/L
Q'TY 1 1 1 2 1 1 1 1 1 1 1 1 1
REMARK
10
(1) Remove the gasket door from door plate. (2) Remove screws from door plate. (3) Remove the door frame from door plate. (4) Remove the stopper hinge top from door plate. (5) Remove the spring and the hook. (6) Remove the handle door and barrier screen outer from door frame. (7) Reverse the above steps for reassembly.
4. Method to reduce the gap between the door seal and the oven front surface.
(1) To reduce gap located on part `A'. · Loosen two screws on stopper hinge top, and then push the door to contact the door seal to oven front surface. · Tighten two screws. (2) To reduce gap located on part `B'. · Loosen two screws on stopper hinge under, and then push the door to contact the door seal to oven front surface. · Tighten two screws.
NOTE : A small gap may be acceptable if the microwave leakage does not exceed 4mW/cm2.
11
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 parts.
B01
B02
B03 B04
B05
B06
B11
B10 B09 B08 B07
REF NO. B01 B02 B03 B04 B05 B06 B07 B08 B09 B10 B11
PART CODE 3513406310 3515501820 3511608100 3516003940 3516725240 3516909040 71222401211 PKMPMSYP20 7121301011 PKCPSWYP20 3516909050
PART NAME KNOB VOLUME WINDOW DISPLAY DECORATOR C-PANEL SPECIAL DOUBLE TAPE CONTROL-PANEL BUTTON FUNCTION-A SCREW TAPPING PCB MAIN AS SCREW TAPPING PCB SUB AS BUTTON FUNCTION-B PMMA
DESCRIPTION ABS SG-175 SG-0760D SUS430 T0.5 H/L SI-161 T0.15 VT-0826, AF348 ABS SG-175 SG-0760D COAT T2S TRS 4*12 MFZN KOC-924T9A T2S PAN 3*10 MFZN KOC-924T9A ABS SG-175 SG-0760D COAT
Q'TY 1 1 1 1 1 1 4 1 5 1 1
REMARK
(1) Remove the screw which secure the control panel, push up two snap fits and draw forward the control panel assembly. (2) Remove four screws(B07) which secure the PCB Main ASS'Y. (3) Pull out the Main PCB assembly(B08). (4) Remove four screws(B09) which secure the PCB Sub ASS'Y. (5) Pull out the Sub PCB assembly(B10). (6) Pull out the Knob volume(B01) from the Sub PCB assembly. (7) Pull out ten buttons from the control panel. (8) Pull out Decorator control panel(B03) from the control panel. (9) Pull out Window display(B02) from the control panel. (10)Reverse the above steps for reassembly.
12
6. To remove high voltage capacitor.
1) Remove a 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.
N High voltage circuit wiring
7. To remove magnetron.
1) Remove a screw which secure the magnetron. 2) Remove the magnetron. 3) Reverse the above steps for reassembly.
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/cm2 for a fully assembled oven with door normally closed.
Metallic gasket plate
Magnetron antenna
Cooling fin
Filament terminal
13
8. To remove wind guide assembly.
1) Remove a screw for earthing. 2) Remove the noise filter from the wind guide. 3) Remove a 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 shaded pole. 7) Remove the motor shaded pole. 8) Reverse the above steps for reasembly.
9. To remove H.V.transformer.
1) Remove four screws holding the H.V.transformer. 2) Remove the H.V.transformer. 3) Reverse the above steps for reassembly.
14
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).
10. To remove Top heater assembly parts.
REF NO. 1 2 3 4 5 6 7
PART CODE 7112401011 3512520500 3510607700 7112401011 3510607700 3512801810 3511410300
PART NAME SCREW TAPPING GUIDE AIR OUTLET BRACKET HEATER *T SCREW TAPPING BRACKET HEATER *T HEATER MIRACLON COVER HEATER *T
DESCRIPTION T1 TRS 4X10 MFZN SA1D T0.5 SECC T0.5 T1 TRS 4X10 MFZN SA1D T0.5 120V 800W 270MM STS430 T0.5
Q'TY 1 1 1 1 1 1 1
REMARK
1) Remove a screw 1 and pull out Guide air outlet 2. 2) Remove a screw 4 and BRACKET HEATER *T3. 3) Pull out the Braket heater*t from the Cover heater*t7. 4) Pull out the Heater miraclon6 from the Cover heater*t7. 5) Reverse the above steps for reassembly.
15
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).
11. To remove Rear heater assembly parts.
14 15 16 17 1
13
12 11 10
9
8
7
6
5
4
3
2
REF NO. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17
PART CODE 7112401011 3511410500 7112401011 3511407900 3512767600 7113400814 3511409800 3513303400 7113400814 3511800700 3513002300 3512801810 7400104011 7051400811 3963822600 3511800800 7402704600
PART NAME TAPPING COVER MOTOR*B SCREW TAPPING COVER*B HARNESS CONVECTION SCREW TAPPING COVER HEATER*B INSULATOR HEATER*B SCREW TAPPING FAN CONVECTION HOLDER HEATER HEATER WASHER PLAIN SCREW MACHINE MOTOR SHADED POLE FAN RING C
DESCRIPTION T1 TRS 4*10 MFZN SA1D-80 T0.5 T1 TRS 4*10 MFZN SA1D-80 T0.5 KOC-924T0S T1 BIN 4*8 MFNI SA1D-80 T0.5 SBHG-1 T0.5 T1 BIN 4*8 MFNI SA1D-80 T0.5 SUS430 T-.5 120V 1400W 1R18344 PW-1-4 MFZN PAN 4*8 SW MFZN 120V 60HZ MW10XA-T01 P.P GF20 CR-5 SK5
Q'TY 1 1 1 1 1 4 1 1 3 1 3 1 1 2 1 1 1
REMARK
1) Remove a screw 1 and pull out Cover motor *B2. 2) Remove a screw 3 and pull out Cover *B4. 3) Pull out the Harness convection-B5. 4) Remove four screws6 and then pull out the Rear heater assembly. 5) Remove a Nute and the pull out the Fan convection0. 6) Remove three screws9 and then separate the Cover heater *B7 and the lnsulator heater *B8. 7) Pull out the Heaterw from the Cover Heater *B7. 8) Remove two screwr and then separate the lnsulator heater *B8 and Motor shaded polet. 9) Remove the C-Ringu and then pull out the Fany from Motor shaft. 10)Reverse the above steps for reassebly.
16
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).
12 To remove Barbecue motor syncro and Guide rotary part.
1 2
3
4 5
REF NO. 1 2 3 4 5
PART CODE 441BE5203 3512300301 7113400814 3512521200 7112401011
PART NAME MOTOR SYNCRO GASKET SCREW TAPPING GUIDE ROTARY SCREW TAPPING
DESCRIPTION GM-20-24FDB2 C2700W T1.0 T1 BIN 4X8 MFNI TEFLON T1 TRS 4X10 MFZN
Q'TY 1 1 2 1 1
REMARK
1) Remove a screw3 and then pull out Motor syncro1. 2) Pull out the Gasket2 from the Motor syncro. 3) Remove a screw5 and then pull out Rotary guide4. 4) Reverse the above steps for reassembly.
17
7. 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 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 button of the microswitch. Then the button of the primary interlock switch bring it under ON condition. (2) Secondary interlock switch and interlock monitor switch When the door is closed, the hook pushes the lock lever downward. The lock lever presses the button of the interlock monitor switch to bring it under OFF condition and presses the button of the secondary interlock switch to bring it under ON condition. ADJUSTMENT : Interlock monitor switch When the door is closed, the interlock monitor switch should be opened before other switches are closed. When the door is opened, the interlock monitor switch should be closed after other switches are opened. (3) Adjustment steps a) Loosen the one mounting screw. b) Adjust interlock switch assembly position. c) Make sure that lock lever moves smoothly after adjustment is completed. d) Tighten completely two mounting screws. NOTE : Microwave emission test should be performed after adjusting interlock mechanism. If the microwave emission exceed 4mW/cm2, readjust interlock mechanism.
18
8. TROUBLE SHOOTING 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. 4) When checking the continuity of the switches, fuse or high voltage tranformer, disconnect one load 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 connection 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 NC )
RESULT Continuity (COMNC) No continuity
CAUSE Malfunction of Interlock monitor switch
REMEDY Replace
Check continuity of both primary and secondary interlock switch with door closed
No Continuity Continuity
Malfunction of interlock switch
Replace
Check continuity of primary interlock switch contact with door partially open until interlock monitor switch contact close ( COM NC close )
Continuity
Shorted contacts of primary interlock Switch
Replace
Check continuity of primary winding of low voltage transformer
or infinite Approx. 480~620 ( normal )
Defective low voltage transformer
Replace
Disconnect high voltage fuse and operate the unit
Fuse again blows
Defective high voltage transformer
Replace
19
CONDITION Outlet has proper voltage fuse does not blow?
CHECK Check continuity of magnetron
RESULT No continuity
CAUSE Defective magnetron.
REMEDY
Replace
Check continuity of noise filter board
No continuity
Defective line filter board
Replace
Check continuity of power supply cord
No continuity
Open power supply cord
Replace
No continuity
Defective touch control circuit
Replace
NOTE : All these switches must be replaced at the same time, please refer to (7.Interlock mechanism and adjust) for adjustment instructions (TROUBLE 2) Display shows all figures selected, but oven does not start cooking, even though desired program and time are set and start button is tapped.
CONDITION Turn table motor and oven lamp do not turn on
CHECK Check continuity of primary interlock switch
RESULT No continuity
CAUSE Malfunction of primary interlock switch Malfunction of secondary Interlock and D.O.M switch Defective touch control Circuit
REMEDY Adjust or replace
Check continuity of secondary interlock and D.O.M switch Check D.C voltage being supplied to RELAY(RY4) coil
No continuity
Adjust or replace
0V
Replace
Approx. 24V DC
Fault contacts of RELAY (RY4) or open relay coil.
Replace
20
TROUBLE 3) No microwave oscillation even though fan motor rotates.
CONDITION No microwave oscillation
CHECK Check continuity of high voltage fuse
RESULT No continuity
CAUSE Defective high voltage fuse
REMEDY Replace
No microwave oscillation
Check continuity of high voltage capacitor terminals with wires removed Check continuity of high voltage rectifier in forward and backward direction with DC megger Connect megger leads to magnetron terminal and magnetron body
Continuity
Defective high voltage transformer Defective high voltage rectifier
1
Continuity in backward direction
Replace
Continuity
Defective magnetron
2
Check D.C voltage being supplied to RELAY (RY1) coil
0V
Defective touch control circuit
Replace
Approx. 24V DC
Faulty contacts of RELAY (RY1) or open relay coil
Replace
1 Check resistance of primary
0 or
and secondary coil of high voltage transformer
Defective high voltage transformer
Replace
1 Check continuity of filament
No continuity
terminal of high voltage transformer
2 Check continuity of
Defective high voltage transformer Defective magnetron
Replace
magnetron heater with wires removed
No continuity
Replace
21
(TROUBLE 4) Grill heater (upper heater) is not heated; food will not become hot. CONDITION CHECK Check continuity of primary interlock switch RESULT No continuity CAUSE Malfunction of primary Interlock switch Malfunction of secondary interlock switch Defective heater REMEDY Adjust or replace
Grill heater is not heated.
Check continuity of secondary interlock switch
No continuity
Adjust or replace
Check continuity of heater Check D.C voltage being supplied to RELAY (RY2) coil
No continuity
Replace
0V
Defective touch control circuit
Replace
Approx. 24V DC
Faulty contacts of RELAY (RY2) or open relay coil
Replace
(TROUBLE 5) 1) Convection heater is not heated; food will not become hot. 2) Convection fan motor does no rotate.
CONDITION 1)Convection heater is not heated. 2)Convection fan and motor does not rotate.
CHECK Check continuity of primary interlock switch
RESULT No continuity
CAUSE Malfunction of primary Interlock switch Malfunction of secondary interlock switch Defective motor
REMEDY Adjust or replace
Check continuity of secondary interlock switch Check continuity of (heater or motor) Check D.C voltage being supplied to RELAY (RY3, RY6) coil
No continuity
Adjust or replace
No continuity
Replace
0V
Defective touch control circuit
Replace
Approx. 24V DC
Faulty contacts of RELAY (RY3,RY6) or open relay coil
Replace
22
(TROUBLE 6) The following visual conditions inditions indicate a probable defective touch control Circuit or button P.C.B. assembly 1. Incomplete segments. 1) segment missing 2) partial segments missing 3) digit flickering other than normal fluorescent slight flickering 2. A distinct change in the brightness of one or more numbers exists in the display 3. One or more digits in the display are not on when they should be. 4. Display does not count down or up with time cooking or clock operation. 5. Oven is programmable and cooks normally but no display shows. 6. Display obviously jumps in time while counting down. 7. Display counts down noticeably too fast while cooking. 8. Display does not show the time of day when clear button is touched. 9. Oven lamp and turn table motor do not stop although cooking is finished. Check if the RELAY(RY4) contacts close and if they are close, replace touch control circuit.
CONDITION Display does not show programming at all, even if keyboard is touched.
CHECK Check each button for continuity of the button
RESULT Normal
CAUSE Malfunction of sub pcb assembly
REMEDY Replace control box sub-assembly
(TROUBLE 7) When "ERROR 2 ERROR 3" come on display.
CONDITION "ERROR 2 & ERROR 3" come on display
CHECK Check continuity of thermistor (resistance of thermistor)
RESULT 0 or infinite
CAUSE Replace
REMEDY Replace
Approx 200~300k (room temperature)
Check continuity of heater (convection, upper, lower)
No continuty
Defective heater
Replace
continuity
Defective touch control circuit
Replace
23
9. 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. A cylindrical container of borosilicate glass is used for the test. It has a maximum thickness of 3mm, an external diameter of approximately 190mm and a height of approximately 90mm. The mass of the container is determined. 2. At the start of the test, the oven and the empty container are at ambient temperature. Water having an initial temperature of 10°C ± 1°C is used for the test. The water temperature is measured immediately before it is poured into the container. 3. A quantity of 1000g ± 5g of water is added to the container and its actual mass obtained. The container is then immediately placed in the centre of the oven shelf, which is in its lowest normal position. The oven is operated and the time for the water temperature to attain 20°C ± 2°C is measured. The oven is then switched off and the final water temperature is measured within 60s. NOTE 1 - The water stirred is before its temperature is measured. NOTE 2 - Stirring and measuring devices are to have a low heat capacity. 4. The microwave power output is calculated from the formula P = 4,187 · mW (T2 -T1) + 0.55 · mC(T2 - T0)/t where P is the microwave power output, in watts ; mW is the mass of the water, in grams ; mc is the mass of the container, in grams ; T0 is ambient temperature, in degrees Celsius ; T1 is the initial temperature of the water, in degree Celsius ; T2 is the final temperature of the water, in degrees Celsius ; t is the heating time, in seconds, excluding the magnetron filament heating-up time. The microwave power output is stated in watts, rounded off to the nearest 50W
CAUTION 1. Water load should be measured exactly to 1 liter. 2. Input power voltage should be exactly specified voltage (Refer to SPECIFICATIONS). 3. Ambient temperature should be 20 ± 2°C (68 ± 3.6°F) Heating time for power output: (T2 = T0) A (second) B (W) 70 600 64 650 60 700 56 750 52 800 49 850 47 900 44 950 42 1000 40 1050 38 1100
24
2. MICROWAVE RADIATION TEST
WARNING 1. Make sure to check the microwave leakage before and after repair of adjustment. 2. Always start measuring of an unknown field to assure safety for operating personnel from microwave energy. 3. Do not place your hands into any suspected microwave radiation field unless the safe density level is known. 4. Care should be taken not to place the eyes in direct line with the source of microwave energy. 5. Slowly approach the unit under test until the radiometer reads an appreciable microwave leakage from the unit under the test.
PROCEDURE 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 600 cc glass beaker with an inside diameter of approx. 85 mm(3.5 in.). 3. Place it at the center of the tray and set it in a cavity. 4. Close the door and operate the oven. 5. Measure the leakage by using Microwave Energy Survey Meter with dual ranges, set to 2450MHz. 1) Measured radiation leakage must not exceed the value prescribed below. Leakage for a fully assembled oven with door normally closed must be less than 4mW/Cm2. 2) When measuring the leakage, always use the 5 cm (2 in.) space cone with probe. Hold the probe perpendicular to the cabinet and door. Place the space cone of the probe on the door, cabinet, door seem, door viewing screen, the exhaust air vents and the suction air vents. 3) Measuring should be in a counter-clockwise direction at a rate of 1 in./sec. If the leakage of the cabinet door seem is unknown, move the probe more slowly. 4) When measuring near a corner of the door, keep the probe perpendicular to the areas making sure the probe end at the base of the cone does not get closer than 2 in. from any metal. If it does not, erroneous reading may result.
25
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 from its power source and discharge the capacitor. 1. High voltage transformer 1) Remove connections from the transformer terminals and check continuity. 2) Normal readings should be as follows : Secondary winding ... Approx. 100 ±10% Filament winding ... Approx. 0 Primary winding ... Approx. 1.2 2. High voltage capacitor 1) Check continuity of capacitor with meter on the highest OHM scale. 2) A normal capacitor will show continuity for a short time, and then indicate 10M once the capacitor charged. 3) A shorted capacitor will show continuous continuity. 4) An open capacitor will show constant 10M. 5) Resistance between each terminal and chassis should be infinite. 3. High voltage diode 1) Isolate the diode from the circuit by disconnecting the leads. 2) 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-back resistance of the diode, otherwise an infinite resistance may be read in both directions. A normal diode's resistance will be infinite in one direction and several hundred k in the other direction. 4. Magnetron For complete magnetron diagnosis, refer to "Measurement of the Microwave Power Output." Continuity checks can only indicate and open filament or a shorted magnetron. To diagnose for an open filament or a shorted magnetron, 1) Isolate magnetron from the circuit by disconnecting the leads. 2) A continuity check across magnetron filament terminals should indicate 0.1 or less. 3) A continuity check between each filament terminal and magnetron case should read open. 5. Fuse If the fuse in the primary and monitor switch circuit is blown when the door is opened, check the primary and monitor switch before replacing the blown fuse. In case the fuse is blown by an improper switch operation, replace the defective switch and fuse at the same time. Replace just the fuse if the switches operate normally. 6. Interlock switches 1) You can test continuity of safety interlock and monitor switch by using ohmmeter. 2) The switch peration is checked by zero/unlimited. The meter should indicate zero resistance. 3) The sequence of check is interlock monitor switch, primary and secondary interlock switches check.
26
4. COMPONENT ACTION MAGNETRON G G G G G G G G G G G G G G G G G G G G G G G G G G G G G G G G G G G G G G G G G G G G G G G G G G G G G G G G G G G G G G G G G G G G G G G G G G G G G G G G G UPPER LOWER REAR CONVECELEMENT ELEMENT ELEMENT TION FAN
COOKING MODE
M/W GRILL-1 GRILL-2 GRILL-3 COMBI-1 COMBI-2
MANUAL MODE
COMBI-3 COMBI-4 COMBI-5 CONVECTION100~130 CONVECTION140~150 CONVECTION160~250
ONE TOUCH
CAKE/BREAD CRUSTY ROAST BEEF ROAST CHICKEN ROAST PORK BAKED FISH
AUTO MODE
BAKED POTATO BAKED POTATO ROAST POTATO FRESH VEGETABLES FROZEN VEGETABLES CASSEROLE
27
10. WIRING DIAGRAM
28
F10 F08 F03 F02 F09 F04
F07
F06
F05
F01
F29
F11
11. EXPLODED VIEW AND PARTS LIST
F62 F66
F28
F12 F61 F63 F64 F65 F13
F39
F40
F32 F41 F42 F14 F60 F44 F59 F43 F38
F31
F33 F58 F57 F54 F53 F52 F36 F37 F56 F55 F51 F50 F22 F48 F45 F46 F47 A00 B00 F49
F34 F35
F27
F26
F25
Refer to 6. Disassembly and assembly.
2. CONTROL PANEL ASSEMBLY
Refer to 6. Disassembly and assembly.
F24
3. TOTAL ASSEMBLY
1. DOOR ASSEMBLY
F23
F15 F16 F17 F18 F19 F20
F21
29
F30
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 A00 B00 F01 F02 F03 F04 F05 F06 F07 F08 F09 F10 F11 F12 F13 F14 F15 F16 F17 F18 F19 F20 F21 F22 F23 F24 F25 F26 F27 F28 F29 F30 F31 F32 F33 F34 F35 F36 F37 F38 F39 F40
PART CODE 3511714530 PKCPSWYP20 3510805200 7112401011 7121400611 7112401011 3512520500 7112401011 3512804730 3510607700 3510607700 3512804900 3517209300 3517205200 3512521000 3516003700 3515202800 7272400811 3510313600 7112401011 3512101400 3516003700 3518118920 4415A66600 3512718350 3512767600 3511407900 7112401011 3511407300 7112401011 7S312X40A1 3511800800 7402704600 3963822600 3513303400 3511409800 3511800700 3512801810 7400104011 3513002300 7S312X40A1 7121403011
PART NAME DOOR AS CONTROL-PANEL AS CABINET AS SCREW TAPPING SCREW TAPPING SCREW TAPPING GUIDE AIR OUTLET SCREW TAPPING HEATER MIRACLON BRACKET HEATER *T BRACKET HEATER *T HEATER REFLECTOR TRAY PACK AS TRAY METAL GUIDE ROLLER AS SPECIAL SCREW KOR-STOPPER HINGE *U AS SCREW TAPTITE BASE SCREW TAPPING FOOT SPECIAL SCREW TRANS HV SW MICRO HARNESS MAIN HARNESS CONVECTION COVER *B SCREW TAPPING COVER MOTOR *B SCREW TAPPING SCREW SPECIAL FAN RING C MOTOR SHADED POLE INSULATOR HEATER *B COVER HEATER *B FAN CONVECTION HEATER WASHER PLAIN HOLDER HEATER SCREW SPECIAL SCREW TAPPING KOC-924T9A KOC-924T9A KOC-910K0S
DESCRIPTION
Q'TY 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 2 1 1 1 5 4 4 1 1 1 1 1 1 1 1 4 1 1 1 1 1 1 1 1 3 1 2
T1 TRS 4*10 MFZN T2S PAN 4X6 MFZN T1 TRS 4*10 MFZN SA1D-80 T0.5 T1 TRS 4*10 MFZN 120V 800W 270MM SA1D-80 T0.5 SA1D-80 T0.5 STS430 T0.5 KOC-924T9A 70MM SPP T0.6 KOC-1B0K0S TT3 HEX 4X8 FLG MFZN 121M0A TT3 TRS 4X8 MFZN SBHG T0.8 T1 TRS 4*10 MFZN DASF-310 TT3 HEX 4X8 FLG MFZN DT-R11A0-1BT S VP-532A-OF SPNC #187 200G KOC-924T9A KOC-924T0S SA1A-80 T0.5 T1 TRS 4*10 MFZN SA1D-80 T0.5 T1 TRS 4*10 MFZN T1 TRS 4X10 SE MFZN P.P GF20 CR-5 SK5 120V 60HZ MW10XA-T01 SBHG-1 T0.5 SA1D-80 T0.5 SA1D-80 T0.5 120V 1400W 1R18344 PW-1-4 MFZN SUS304 T0.5 T1 TRS 4X10 SE MFZN T2S PAN 4X30 MFZN
30
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 F41 F42 F43 F44 F45 F46 F47 F48 F49 F50 F51 F52 F53 F54 F55 F56 F57 F58 F59 F60 F61 F62 F63 F64 F65 F66
PART CODE 3512515300 3963822200 3511800100 3516004000 3513003200 3518400400 3518302200 7S422X4081 4415A66910 3513700800 3513816000 4415A17352 3513702100 3513601500 7112401011 3966821200 3518003420 7122401211 3511408300 3517401900 3516112320 3511407910 3518902600 7112401011 35113UANT5 7112401011
PART NAME GUIDE WIND MOTOR SHADED POLE FAN SPECIAL SCREW HOLDER HV CAPACITOR DIODE HV CAPACITOR HV SCREW SPECIAL SW MICRO LEVER LOCK LOCK SW MICRO LEVER SW MICRO LAMP SCREW TAPPING MOTOR SYNCRO MAGNETRON SCREW TAPPING COVER WAVE GUIDE COUPLER CAVITY AS INSULATOR COVER *B THERMOSTAT SCREW TAPPING CORD POWER AS SCREW TAPPING PP
DESCRIPTION 120V 30W OEM-15DWX1-B07 P.P GF20 T2 BOLT FLANGE 5X12 DACRO SECC T0.6 HVR-1X-3AB 12KV #187 2100VAC 0.98UF #187 TT3 TRS 4X8 SE MFZN VP-531A-OF/SZM-V16-FA-61 POM PP VP-533A-OF SPNO #187 200G POM,KOG-846T0S BL 125V 25W T25 C5A H187 T1 TRS 4*10 MFZN 120V 60HZ 2W KX63MQ2AD RM228JFP T2S TRS 4X12 MFZN MICA T0.35 PTFE KOC-924T0S PBT OFF:90 ON:60 H #187 T1 TRS 4*10 MFZN 3X14AWG 60X60 120-RTML T1 TRS 4*10 MFZN
Q'TY 1 1 1 1 1 1 1 1 1 1 1 2 1 1 1 1 1 1 1 1 1 1 1 2 1 2
31
12. PRINTED CIRCUIT BOARD
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: 50Hz
Terminal 6-7 8-9 9-10
Voltage(load) AC 17.0 V AC 1.3 V AC 1.3 V
Voltage(no load) AC 19.9 V AC 1.6 V AC 1.6 V
NOTE 1. Secondary side voltage of the low voltage transformer changes in proportion to fluctuation of power source voltage. 2. The allowable tolerance of the secondary voltage is within ± 5% of nominal voltage.
2. Voltage Check - Key check point NO 1 2 CHECK POINT IC1 PIN 20, 21 IC1 PIN 22
5V 0V T
REMARK 5VDC±5%
T : 16.67 ms(60Hz)
3
IC1 PIN 8 OR 9
5V 0V T
T : 250 ns(4MHz)
- Check method NO 1 2 MEASURE POINT MP1 MP2 WAVE FORM DC 5V±5% DC 24V±20% REMEDY Replace ZD4, EC1 Replace D18-21, EC5 REMARK NO LOAD NO LOAD
NOTE: Each measure point must be measured with GND points.
32
3. Case of no microwave oscillation 1) When touching M/W button, oven lamp turns on and Fan motor and turntable rotate, and cook indicator in display comes on. *Cause: RELAY 1 does not operate.
B M/W RY1 D8 Q4
A
16
STATE RELAY 1 ON RELAY 1 OFF
POINT A +5V DC GND
POINT B GND +24V DC
2) When touching M/W button, oven lamp does not turn on and turntable motor does not rotate but cook indicator in display comes on. *Cause: RELAY 1 does not operate.
B LAMP TRAY RY4 D11 Q7
A
23
STATE RELAY 4 ON RELAY 4 OFF
POINT A +5V DC GND
POINT B GND +24V DC
3) When touching M/W button, oven lamp turn on and turns on and fan motor does not rotate but cook indicator in display comes on. *Cause: RELAY 5 does not operate.
B FAN RY5 D12 Q8
A
24
STATE RELAY 5 ON RELAY 5 OFF
POINT A +5V DC GND
POINT B GND +24V DC
33
4. Case of no heating of top grill When touching GRILL or COMBI button, oven lamp turns on and fan motor and turntable rotate, and cook indicator in display comes on. *Cause: RELAY 2 does not operate.
B TOP GRILL RY2 D9 Q5
A
17
STATE RELAY 2 ON RELAY 2 OFF
POINT A +5V DC GND
POINT B GND +24V DC
5. Case of no heating of convection grill When touching CONVECTION button, oven lamp turns on and Fan motor and turntable rotate and cook indicator in display comes on. *Cause: RELAY 3 does not operate.
B CONV GRILL RY3 D11 Q4
POINT A +5V DC GND
A
18
STATE RELAY 3 ON RELAY 3 OFF
POINT B GND +24V DC
34
6. Case of no stopping of the count down timer When the door is opened during operation, the count down timer does not stop.
A R2 1 CN1 2 D.O.M SW
POINT STATE DOOR OPEN DOOR CLOSED CHECK NO 1 A OPEN CLOSE
B
3 D6 C1 +5V R3 C2
B +5V DC GND REMEDY Replace door open monitor swith.
METHOD Check the stage(ON,OFF) of the door open monitor switch by resistance measurement.
35
13. P.C.B. CIRCUIT DIAGRAM
36
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).
PCB ASS'Y PART LIST NO 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 NAME BUZZER C ARRAY C CERA C ELECTRO C ELECTRO C ELECTRO C ELECTRO CONNECTOR WAFER CONNECTOR WAFER CONNECTOR FILM CONNECTOR WAFER DIODE DIODE DIODE ZENER DIODE ZENER DIODE ZENER DIODE ZENER DISPLAY VFD HOLDER VFD PCB MAIN R ARRAY R CARBON FILM R CARBON FILM R CARBON FILM R CARBON FILM R CARBON FILM R CARBON FILM R CARBON FILM R CARBON FILM R CARBON FILM R METAL FILM R METAL FILM RESONATOR CERA IC MICOM TRANSISTOR TRANSISTOR TRANSISTOR TRANS POWER SW RELAY SW RELAY WIRE COPPER WIRE COPPER WIRE COPPER WIRE FLAT PCB SUB CONNECTOR FILM SW TACT SW ROTARY WIRE COPPER WIRE COPPER WIRE COPPER SYMBOL BZ1 CA1 C1~11 EC1 EC2 EC3,4 EC5 CN1 CN2 CN3 CN4 D1~6,8~14,17 D15,16,18~21 ZD1 ZD2 ZD3 ZD4 DP1 DPH1 M236 RA1 R28 R20~25 R1 R7 R2,6,17~19,26 R3,5,11 R12 R9,13~16,27 R4 R8 R10 CR1 IC1 Q1 Q2,4~10 Q11 LVT1 RY1~3 RY4~6 J2,3,7,8,10~12,16,17,19,20,22 J5,6,13~15,18,21,23 J4,9 WF1 M237 CN101 SW101~108,110,111 SW109 J101~103 SJ1 SJ3 SPECIFCATION BM-20K 5P(4) 102 M 50V 104 50V Z AXIAL 50V RS 10uF 50V RSS 100uF 50V RSS 220uF 35V RSS 1000uF 35313-0210 35312-0310 HLEM15S-1 35328-0610 1N4148 1N4004A UZ-3.3BSB UZ-3.9BSB UZ-24BSB UZ-5.6BSB SVM-5MS06 PP 95x235 5P(4) 1/8 100K J 1/2W 27 5% 1/2W 200 5% 1/4W 6.8 5% 1/6W 200 5% 1/6W 1K 5% 1/6W 10K 5% 1/6W 47K 5% 1/6W 100K 5% 1/6W 1M 5% 1/4W 10K 1% 1/4W 120K 1% CRT4.00MS HD404318S KTA-1266Y KRC-106M KTC-3198GR DMR-210P G5G-1A DT DC24V CS11-24SH 1C 1P 1/0.52 TIN COATING 1/0.52 TIN COATING 1/0.52 TIN COATING 15/90 WH C 90x200 HLEM15R-1 KPT-1115AM SDB161PVB17F 1/0.52 TIN COATING 1/0.52TIN COATING 1/0.52TIN COATING PART CODE 3515600100 CN4XB-102M CCZF1H104Z CEXE1H100A CEXF1H101V CEXF1H221V CEXF1V102V 30166M7020 30166M5030 4CW215SBD0 4CW3061MX0 DZN4148--DZN4004A-DZUZ3R3BSB DZUZ3R9BSB DZUZ24BSBDZUZ5R6BSB DSVM5MS063513002000 3514323520 RA-85X104J RD-2Z270JS RD-2Z201JS RD-4Z689JRD-AZ201JRD-AZ102JRD-AZ103JRD-AZ473JRD-AZ104JRD-AZ105JRN-4Z1002F RN-4Z1203F 5P4R00MTS147S924T00 TZTA1266YTZRC106M-TZTC3198GR 5EPV041351 5SC0101124 5SC0101129 85801052GY 85801052GY 85801052GY WSJ-159007 3514323620 4CW215RBD0 5S50101Z93 5S10109002 85801052GY 85801052GY 85801052GY Q'TY 1 1 11 1 1 2 1 1 1 1 1 14 6 1 1 1 1 1 1 1 1 1 6 1 1 6 3 1 6 1 1 1 1 1 1 8 1 1 3 3 12 8 2 1 1 1 10 1 3 1 1
37
686, AHYEON-DONG MAPO-GU SEOUL, KOREA C.P.O. BOX 8003 SEOUL, KOREA TELEX: DWELEC K28177-8 CABLE: "DAEWOOELEC"
PRINTED DATE: Feb. 2003