Website: http://us.lgservice.com

MICROWAVE OVEN

SERVICE MANUAL

MODEL: LMVM1955SW

LMVM1955SB

LMVM1955SBQ

LMVM1955T

CAUTION

BEFORE #SERVICING THE UNIT, READ THE

SAFETY PRECAUTIONS IN THIS MANUAL.

CAUTION

SAFETY PRECAUTIONS

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 CSA Standard should be performed on each oven prior to release to the owner.

•

Proper operation of the microwave ovens requires that the magnetron be assembled to the wave guide and cavity. Never operate the magnetron unless it is properly installed.

•

Be sure that the magnetron gasket is properly installed around the dome of the tube whenever installing the magnetron.

•

Routine service safety procedures should be exercised at all times.

•

Untrained personnel should not attempt service without a thorough review of the test procedures and safety information contained in this manual.

FOREWORD

Read this Manual carefully. Failure to adhere to or observe the information in this Manual may result in exposing yourself to the Microwave Energy normally contained within the oven cavity.

TABLE OF CONTENTS

(Page)

SAFETY PRECAUTIONS .........................................................................................................

Inside front page

SPECIFICATIONS ..........................................................................................................................................

1-1

CAUTIONS .....................................................................................................................................................

2-1

INSTALLATION ..............................................................................................................................................

3-1

OPERATING INSTRUCTIONS.......................................................................................................................

4-1

CONTROL PANEL .................................................................................................................................

4-1

CONTROL PANEL INSTRUCTIONS .....................................................................................................

4-2

OVERALL CIRCUIT DIAGRAM ......................................................................................................................

5-1

SCHEMATIC DIAGRAM.........................................................................................................................

5-1

MATRIX CIRCUIT FOR TOUCH KEY BOARD ......................................................................................

5-2

GENERAL INFORMATION FOR SERVICE ...................................................................................................

6-1

GENERAL PRECAUTIONS IN USE ......................................................................................................

6-1

TRIAL OPERATION ...............................................................................................................................

6-1

FEATURES AND SPECIFICATIONS FEATURES.................................................................................

6-1

SERVICE INFORMATION .............................................................................................................................

7-1

PRECAUTIONS AND REPAIR SERVICE TIPS .....................................................................................

7-1

MICROWAVE LEAKAGE TEST .............................................................................................................

7-2

POWER OUTPUT MEASUREMENT .....................................................................................................

7-3

DISASSEMBLY INSTRUCTIONS ..........................................................................................................

7-4

INTERLOCK SYSTEM .......................................................................................................................... 7-11

INTERLOCK CONTINUITY TEST .......................................................................................................... 7-13

TEST AND CHECKOUT PROCEDURES AND TROUBLESHOOTING................................................. 7-14

A. TEST PROCEDURES................................................................................................................ 7-14

B. CHECKOUT PROCEDURES..................................................................................................... 7-16

C. TROUBLESHOOTING ............................................................................................................... 7-20

EXPLODED VIEW ..........................................................................................................................................

8-1

REPLACEMENT PARTS LIST ...............................................................................................................

8-8

SCHEMATIC DIAGRAM OF P.C.B. .......................................................................................................... 8-16

PRINTED CIRCUIT BOARD..................................................................................................................... 8-17

P.C.B. PARTS LIST ................................................................................................................................. 8-18

SPECIFICATIONS

Rated Power Consumption..................................................1,400W maximum (Microwave oven+Cook top lamps+Ventilation fan)

Microwave Output.................................................................1170W (IEC 60705)

Adjustable 117W through 1170W, 10 steps

Frequency .............................................................................2,450 MHz 50 MHz

Power Supply........................................................................120 VAC, 60 Hz

Rated Current .......................................................................12 Amp. (Microwave oven+Cook top lamps+Ventilation fan)

Magnetron Cooling ...............................................................Forced Air Cooling

Rectification...........................................................................Rectification Voltage Double Half-Wave

Door Sealing .........................................................................Choke System

Safety Devices......................................................................Thermostat:

Open at 110°C 5°C

Close at 0°C 5°C

Fuse(20A)

Primary Interlock Switch

Secondary Interlock Switch

Interlock Monitor Switch

Inverter .................................................................................120 V

Magnetron.............................................................................2M261

Cook top Lamp .....................................................................125 V, 20 W 2EA(Halogen)

Cavity Lamp..........................................................................125 V, 20 W (Halogen)

Timer .....................................................................................Digital, up to 99 mim. 99 sec. (in each cooking stage)

Tray .......................................................................................Tempered Safety Glass

Overall Dimensions ..............................................................29

15/16

”

(W)x16 7/16

”

(H)x15 5/8

”

(D)

Oven Cavity Size .................................................................23

1/2

”

(W)x10 3/16

”

(H)x14 1/2

”

(D)

Effective Capacity of Oven Cavity .......................................1.9 Cu.ft.

Accessories...........................................................................Owner’s Manual & Cooking Guide, Installation Manual,

Exhaust Adapter, Exhaust Damper, Mounting Kit and Two Filters,

Rotating Ring Assembly, Metal Rack, Glass Tray, Defrosting Net.

1-1

CAUTIONS

Unlike other appliances, the microwave oven is high-voltage and high-current equipment.

Though it is free from danger in ordinary use, extreme care should be taken during repair.

• DO NOT operate on a 2-wire extension cord during repair and use.

• NEVER TOUCH any oven components or wiring during operation.

• BEFORE TOUCHING any parts of the oven, always remove the power plug from the outlet.

• For about 30 seconds after the oven stops, an electric charge remains in the high voltage capacitor. When replacing or checking, you must discharge the high voltage capacitor by shorting across the two terminals with an insulated screwdriver.

• Remove your watches whenever working close to or replacing the Magnetron.

• DO NOT touch any parts of the control panel circuit. A resulting static electric discharge may damage this

P.C.B.

• NEVER operate the oven with no load.

• NEVER injure the door seal and front plate of the oven cavity.

• NEVER put iron tools on the magnetron.

• NEVER put anything into the latch hole and the interlock switches area.

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 connection.

All input and output microwave connections, waveguide, flange, and gasket must be secure never operate the device without a microwave energy absorbing load attached.

Never look into an open waveguide or antenna while the device is energized.

• Proper operation of the microwave oven requires that the magnetron be assembled to the waveguide and cavity. Never operate the magnetron unless it is properly installed.

• Be sure that the magnetron gasket is properly installed around the dome of the tube whenever installing the magnetron.

ANTENNA

Gasket

COOLING FIN

FILAMENT

TERMINALS

MAGNETRON

MAGNETRON

CHASSIS GROUND

THE OVEN IS TO BE SERVICED ONLY

BY PROPERLY QUALIFIED SERVICE

PERSONNEL.

2-1

INSTALLATION

BEFORE YOU BEGIN, READ THE FOLLOWING INSTRUCTIONS COMPLETELY AND CAREFULLY.

PRECAUTIONS ON INSTALLATION

A. Plug the power supply cord into a 120V AC, 60Hz, single-phase power source with a capacity of 15A or 20A.

B. Avoid placing the unit in a location where there is direct heat or splashing water.

C. Install the unit on the mounting plate firmly.

D. Place the unit as far away as possible from TV, radio, etc. to prevent interference.

GROUNDING INSTRUCTIONS

For personal safety, this appliance must be fully grounded at all times.

In the event of an electrical short circuit, grounding reduces the risk of electrical shock.

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

CAUTION

This unit is equipped with a 3-prong plug for your safety. If the wall outlet is a grounded 3-hole type, the unit will be grounded automatically.

Plug with Ground

Prong

Properly Polarized and Grounded

Outlet

WARNING

Improper use of the grounding plug can result in a risk of electric shock.

Do not, under any circumstances, cut or remove the third ground prong from the power cord plug.

3-1

CONTROL PANEL

OPERATING INSTRUCTIONS

2 3 4 8 10 11 13 15 1

5 7 6 9

17 19 21

12 14 16

25 26

18 20 22

27

28

23 24

4-1

CONTROL PANEL INSTRUCTIONS

1. DISPLAY: The Display includes a clock and indicators to tell you time of day, cooking time settings and cooking functions selected.

2. POPCORN: Touch this pad when popping popcorn in your microwave oven.

3. POTATO: Touch this pad to cook potatoes.

4. RICE: Touch this pad to cook rice.

5. VEGETABLE: Touch this pad to cook vegetables.

6. FROZEN ENTREE: Touch this pad to cook frozen entree.

7. REHEAT: Touch this pad to reheat casserole, dinner plate soup/sauce and pizza.

8. CHICKEN CHOICES: Touch this pad to cook chicken wings, chicken nuggets, spicy chicken and mexican chicken.

9. HOMEMADE BAKERY: Touch this pad to cook roll/muffin, pancake, and french toast.

10. LARGE DISH MENUS: Touch this pad to cook lasagna, whole chicken, and casserole.

11. SOFTEN: Touch this pad to soften ice cream, cream cheese, butter, or frozen juice.

12. MELT: Touch this pad to melt chocolate, cheese, butter, or marshmallows.

13. AUTO DEFROST: Touch this pad to select food type and defrost food by weight.

14. Q DEFROST: This pad provides you with the

RAPID defrosting method for 1.0 pound ground beef.

15. HOLD WARM: Touch this pad to keep hot, cooked foods warm in your microwave oven for up to 99 minutes 99 seconds.

16. CUSTOM SET: Touch this pad to change the oven’s default settings for clock set, sound, display speed and defrost weight.

17. TIMER: Touch this pad to set the kitchen timer.

18. LIGHT TIMER: Touch this pad to set the light timer.

19. COOK TIME: Touch this pad followed by Number pads to set a cooking time.

20. POWER LEVEL: Touch this pad to select a cooking power level.

21. MORE: Touch this pad to add ten seconds of cooking time each time you press it.

22. LESS: Touch this pad to subtract ten seconds of cooking time each time you press it.

23. NUMBER: Touch number pads to enter cooking time, power level, quantities, or weights.

24. Ez-ON: Touch this pad to set and start quickly at

100% power level.

25. STOP/CLEAR: Touch this pad to stop the oven or to clear all entries.

26. START: Touch this pad to start a function. If you open the door after oven begins to cook, START again.

27. LIGHT HI-LOW-OFF: Touch this button to turn on the cooktop/countertop light.

28. VENT 5 LEVELS: Touch this button to turn the fan on or off.

4-2

OVERALL CIRCUIT DIAGRAM

SCHEMATIC DIAGRAM

5-1

MATRIX CIRCUIT FOR TOUCH KEY BOARD

5-2

GENERAL INFORMATION FOR SERVICE

GENERAL PRECAUTIONS IN USE

A. Never operate the unit when it is empty.

Operating the oven with no load may shorten the life of the magnetron. Whenever cooking dry foods

(dried fish, bread, etc.) or a small amount of food, be sure to put a glass of water into the cooking compartment. The glass turntable may become hot after operating, be careful when touching it.

B. Aluminum foil should be avoided because it will disrupt cooking and may cause arcing. However, small pieces may be used to cover some parts of food to slow the cooking. Any aluminum foil used should never be closer than 2.5 cm to any side wall of the oven.

TRIAL OPERATION

After installation, the following sequences and results should be checked carefully.

A. Put a container filled with water (about 1 liter) into the oven, and close the door tightly.

B. Set cooking time for 10 minutes by touching “1” and then “0” three times. “1, 0, 0, 0” appears in the display window.

C. Touch the START key.

Make sure the cavity light comes on. The unit will begin cooking and the display window will show the time counting down by seconds.

D. After about 5 minutes, make sure the primary interlock switch, the secondary interlock switch and the interlock monitor switch operate properly by opening and closing the door several times. Touch the START key each time the door is closed.

E. Continue operating the unit. Two short and a long beep sound signal is heard when the time is up.

The unit will shut off automatically.

F. Confirm the water is hot.

G. Finally, measure the output power according to

“POWER OUTPUT MEASUREMENT” on page 7-3.

FEATURES AND SPECIFICATIONS

FEATURES

A. The safety systems incorporated in this model are:

(1) Primary interlock switch

(2) Secondary interlock switch

(3) Interlock monitor switch

(4) Choke system

(5) Oven cavity thermostat

(Note: This thermostat located on the oven cavity will open and stop the unit from operation only if a high temperature is reached, such as, a fire created by overcooking food.)

B. Any one of 10 power output levels ranging 0W to

1170W can be selected by the touch control and electronic computer system.

C. Cooking time can be displayed on the digital readout.

D. Three different cooking stages (Include Defrost) can be changes from one cooking stage to another.

This is made possible with the memory function of the microprocessor.

6-1

SERVICE INFORMATION

PRECAUTIONS AND REPAIR SERVICE TIPS

PRELIMINARY

A. SINCE NEARLY 2,100 VOLTS EXISTS IN SOME

CIRCUITS OF THIS UNIT REPAIRS SHOULD BE

CARRIED OUT WITH GREAT CARE.

The filament leads of magnetron carry High

Voltage with respect to ground. Extreme caution must be exercised. Never plug the unit into a power source to determine which component is defective in high voltage section.

B. TO AVOID POSSIBLE EXPOSURE TO

MICROWAVE ENERGY LEAKAGE, THE

FOLLOWING PRECAUTIONS MUST BE TAKEN

BEFORE SERVICING.

(1) Before the power is applied:

(a) Make sure the primary interlock switch, the secondary interlock switch and the interlock monitor switch operate properly by opening and closing the door several by opening and closing the door several times.

(b) Make sure the perforated screen and the dielectric choke of the door are correctly and firmly mounted.

(2) After power is applied:

(a) Make sure the interlock switch mechanism is operating properly by opening and closing the door.

(b) Check microwave energy leakage must bebelow the limit of 5 mW/cm 2.

(All service adjustments should be made for minimum microwave energy leakage readings).

(3) Do not operate the unit until it is completely repaired, if any of the following conditions exist.

The unit must not be operated.

(a) The door does not close firmly.

(b) The hinge is broken.

(c) The door seal is damaged.

(d) The door is bent or warped, or there is any other visible damage on the unit that may cause microwave energy leakage.

NOTE: Always keep the seal clean.

(e) Make sure that there are no defective parts in the interlock mechanism.

(f) Make sure that there are no detective parts in the microwave generating and transmission assembly (especially waveguide).

(4) The following items should be checked after the unit is repaired:

(a) The interlock monitor switch is connected correctly and firmly.

(b) The magnetron gasket is properly positioned and mounted.

(c) The waveguide and the oven cavity are intact.

(no microwave energy leakage)

(d) The door can be properly closed and the safety switches work properly.

(e) The unit must stop when the door is opened or the time is up.

The unit must not be operated with any of the above components removed or by-passed.

7-1

MICROWAVE LEAKAGE TEST

CAUTIONS

• Be sure to check microwave leakage prior to servicing the oven if the oven is operative prior to servicing.

• The service personnel should inform the manufacture importer, or assembler of any certified oven unit found to have a microwave emission level in excess of 5 mW/cm 2

and should repair any unit found to have excessive emission levels at no cost to the owner and should ascertain the cause of the excessive leakage. The service personnel should instruct the owner not to use the unit until the oven has been brought into compliance.

• If the oven operates with the door open, the service personnel should;

- Tell the user not to operate the oven

- Contact the manufacturer and CDRH (Center for

Devices and Radiological Health) immediately.

NOTE: Address on CDRH

Office of Compliance (HFZ-312)

Center for Devices and Radiological Health

1390 Piccard Drive Rockville, Maryland 20850

• The service personnel should check all surface and vent openings for microwave emission testing.

• Check for microwave energy leakage after every servicing. The power density of the microwave radiation leakage emitted by the microwave oven should not exceed 1mW/cm.sq. And always start measuring of an unknown field to assure safety for operating personnel from radiation leakage.

NOTE: The standard is 5mW/cm.sq. while in the customer’s home. 1mW/cm.sq. stated here is manufacturer’s own voluntary standard for units in customer’s home.

EQUIPMENT

• TESTER (VOLTS-DC, AC, Ohmmeter)

• Microwave survey meter

- Holaday HI-1500

HI-1501

- Narda 8100

8200

• 600 cc non conductive material beaker (glass or plastic), inside diameter: approx. 8.5 cm (3

1/2 in.)

• Glass thermometer: 100°C or 212°F (1 deg scale)

MEASURING MICROWAVE ENERGY

LEAKAGE

• Pour 275±15cc of 20±5°C(68±9°F) water in a beaker which is graduated to 600 cc, and place the beaker on the oven.

• Set the energy leakage monitor to 2,450 MHz and use it following the manufacturer's recommended test procedure to assure correct result.

• When measuring the leakage, always use the 2-inch

(5cm) spacer supplied with the probe.

• Operate the oven at its maximum output.

• Measure the microwave radiation using and electromagnetic radiation monitor by holding the probe perpendicular to the surface being measured.

Move probe along shaded area.

Probe scanning speed

Less than 2.5 cm/sec. ( 1 in/sec)

7-2

MEASUREMENT WITH THE OUTER CASE

REMOVED

(1) When you replace the magnetron, measure for microwave energy leakage before the outer case is installed and after all necessary components are replaced or adjusted. Special care should be taken in measuring the following parts.

- Around the magnetron

- The waveguide

WARNING: AVOID CONTACTING ANY HIGH

VOLTAGE PARTS.

MEASUREMENT WITH A FULLY

ASSEMBLED OVEN

(1) After all components, including the outer panels, are fully assembled, measure for microwave energy leakage around the door viewing window, the exhaust opening and air inlet openings.

(2) Microwave energy leakage must not exceed the values prescribed below.

NOTES:

Leakage with the outer panels removed - less than 5 mW/cm 2.

Leakage for a fully assembled oven (“Before the latch switch (primary) is interrupted”) with the door in a slightly opened position - less than 1 mW/cm 2.

NOTE WHEN MEASURING

(1) Do not exceed meter full scale deflection.

(2) The test probe must be removed no faster than

1 inch/sec (2.5cm/sec) along the shaded area, otherwise a false reading may result.

(3) The test probe must be held with the grip portion of the handle. A false reading may result if the operator’s hand is between the handle and the probe.

(4) When testing near a corner of the door, keep the probe perpendicular to the surface making sure the probe horizontally along the oven surface, this may possibly cause probe damage.

RECORD KEEPING AND NOTIFICATION

AFTER MEASUREMENT

(1) After adjustment and repair of any microwave energy interruption or microwave energy blocking device, record the measured values for future reference. Also enter the information on the service invoice.

(2) Should the microwave energy leakage not be more than 1 mW/cm

2 after determining that all parts are in good condition, functioning properly and genuine replacement parts which are listed in this manual have been used.

(3) At least once a year, have the electromagnetic energy leakage monitor checked for calibration by its manufacturer.

POWER OUTPUT MEASUREMENT

(1) Microwave power output measurement is made with the microwave oven supplied at its rated voltage and operated at its maximum microwave power setting with a load of (1000±5) g of potable water.

(2) The water is contained in a cylindrical borosilicate glass vessel having a maximum material thickness of 1/8” (3 mm) and an outside diameter of approximately

7.6” (190mm).

(3) The oven and the empty vessel are at ambient

Temperature(T0) prior to the start of the test.

(4) The initial temperature (T1) of the water is

(10±1)°C (50°F) 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 turntable which is in the lowest position and the microwave power switched on.

(5) The time t for the temperature of the water to rise by a value T of (10±1)°K is measured, where t is the time in seconds and T is the temperature rise.

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

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

P =

4,187 Mw(T2 –T1)+0.55Mc(T2 –T0) t is measured while the microwave generator is operating at full power. Magnetron filament heat-up time is not included. (about 5 sec)

(7) The water is stirred to equalize temperature throughout the vessel, prior to measuring the final water temperature.

(8) Stirring devices and measuring instruments are selected in order to minimize addition or removal of heat.

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 the ambient temperature, in °C:

T1 is the initial temperature of the water, in °C:

T2 is the final temperature of the water, in °C:

t is the heating time in seconds, excluding the magnetron filament heat- up time.

WATER LOAD

GLASS TRAY

7-3

DISASSEMBLY INSTRUCTIONS

IMPORTANT NOTES:

UNIT MUST BE DISCONNECTED FROM ELEC-

TRICAL OUTLET WHEN MAKING REPAIRS, RE-

PLACEMENTS, ADJUSTMENTS AND CONTIN-

UITY CHECKS.

WHEN RECONNECTING THE WIRE LEADS TO

ANY PART, MAKE SURE THE WIRING CONNE-

CTIONS AND LEAD COLORS ARE CORRECTLY

MATCHED ACCORDING TO THE OVERALL CIR-

CUIT DIAGRAM. (ESPECIALLY SWITCHES AND

HIGH VOLTAGE CIRCUIT.)

A. REMOVING POWER AND CONTROL

CIRCUIT BOARD (Figures 1, 2 and 3)

(1) Remove a screw securing the control panel assembly to the oven cavity.

(2) Remove the control panel with pushing it upward.

(3) Remove the connector (CN1) and wire leads

(Relay2) from the circuit board.

Control Panel

Screw

Power

Transformer

(4) Remove 3 screws securing the circuit board.

Figure 2

(5) Remove the circuit board from the control bracket carefully.

Control Bracket

(RY2)

Figure 1

(CN1)

(CN7)

(CN5)

(CN2)

(CN4)

(CN6)

Circuit Board

Figure 3

7-4

B. REMOVING THE OUT CASE(Figure 4)

(1) Remove the vent grille by removing two screws securing it to the out case.

(2) Remove two screws securing it to the air duct.

(3) Remove the mounting plate by turning the screws

(1 or 2 screws) securing it to the out case.

(4) Remove two screws on the left central edge and two screws on the right central edge of Base plate.

Remove the Mount, All from the out case by removing one screw securing it to the out case.

(5) Remove the outcase with disconnecting power cord connector.

Mount,All

Vent Grille

Door

Figure 4

Controller

(1 or 2 screws)

Mounting

Plate

Out Case

7-5

C REMOVING THE DOOR INTERLOCK

SWITCHES (Figures 5, 6)

(1) Disconnect the wire leads from the interlock switches.

(2) Remove two screws securing the Latch Board.

(3) Make necessary replacements and check microwave energy leakage according to

“ADJUSTMENT PROCEDURES” on page 7-11.

Latch Board

Primary Interlock Switch

WH(from Inverter)

YL(from Turntable Motor)

PK(from Cooktop lamp)

BL(from Oven Thermostat)

Latch Board

Primary

Interlock Switch

Monitor Interlock Switch

WH(from Inverter)

RD(from Inverter)

Secondary Interlock Switch

PK(from P.C.B)

BL(from P.C.B)

Figure 5

Figure 6

WIRE COLOR

SYMBOL COLOR

WH WHITE

BK

BR

RD

BLACK

BROWN

RED

YL

PK

BL

GY

GN

YELLOW

PINK

BLUE

GREY

GREEN

N.P.

Not Provided

7-6

Interlock

Monitor Switch

Secondary

Interlock Switch

D. REMOVING MAGNETRON

(Figures 7 Through 8)

(1) Remove the vent grille by loosening two screws.

(Figure 7)

(2) Remove the outcase. See page 7-5.

(3) Remove four tap tite screws securing the magnetron to the wave guide.

(4) Remove the magnetron VERY CAREFULLY.

NOTES:

•

When removing the magnetron, make sure that its dome does not hit any adjacent parts, or it may be damaged.

•

When replacing the magnetron, be sure to install the magnetron gasket in the correct position and be sure that the gasket is in good condition.

•

After replacing the magnetron, check for microwave energy leakage with a survey meter Check microwave energy leakage must be below the limit of 5 mW/cm 2 . (All service adjustments should be made for minimum microwave energy leakage readings.)

E. REMOVING THE INVERTER MODULE

(Figures 9 Through 11)

(1) Remove the vent grille by loosening two screws.

(Figure 7)

(2) Remove the outcase. See page 7-5.

(3) Remove the base plate by loosening four screws.

(Figure 9)

(4) Disconnect two leadwires of the fan motor assembly.

(5) Disconnect the leadwire of the inverter PCB and the H.V. cable of the magnetron.

(6) Remove the earth wire screw.

(7) Remove three screws securing to duct assembly and two screws securing to fan guide. (Figure 10)

(8) Remove a screw securing to inverter module assembly.

(9) Push the inverter guide hook and get out the inverter module assembly lifting up duct assembly.

(10) Open the upper inverter guide.

(11) Remove three screws securing to PCB and pull out PCB. (Figure 11)

Figure 9

Figure 7

Figure 8

Figure 10

7-7

Figure 11

Top

Bottom

Top

F. REMOVING STIRRER FAN

(Figures 12 and 13)

(1) Remove one rivet securing it to oven upper plate by using knife blade.

(2) Pull out the stirrer fan cover.

(3) Remove two rivets securing it to the oven upper plate by using knife blade.

(4) Remove the stirrer fan.

G. REMOVING DOOR (Figure 14)

(1) Remove the vent grille by two screws securing it to the outcase loosening.

(2) Disconnect two leadwires.

(3) Lift up and draw the door.

NOTES:

• After replacing the door, be sure to check that the primary interlock switch, the secondary interlock switch and the interlock monitor switch is in good operating normally.

• After replacing the door, check for microwave energy leakage with a survey meter. Microwave energy leakage must be below the limit of 5mW/cm 2 .

(With a 275 ml water load)

Figure 12

Figure 14

H. DISASSEMBLING DOOR (Figure 15)

(1) Remove the dielectric choke by using knife blade or small screw driver, etc.

(2) Remove two screws securing it to the door handle.

CAUTION: Be careful not to damage door seal plate with the screwdriver.

Figure 13

Figure 15

Door Screen

7-8

I. ASSEMBLING DOOR

(1) When mounting the door assembly to the oven assembly, be sure to adjust the door assembly parallel to the chassis. Also adjust so the door has no play between the inner door surface and oven frame assembly. If the door assembly is not mounted properly, microwaves may leak from the clearance between the door and the oven.

Space

(3) Carefully pull the ventilation motor ASS'Y out of the microwave oven. (See Figure 17-b)

J. REMOVING THE VENTILATION MOTOR

(1) Remove the mounting plate by loosening mounting plate screws (1 or 2 screws) securing it to the back plate. (See Figure 16)

(2) Remove MOUNT, ALL loosening one screw loosening one screw securing the ventilation Motor and back plate. (See Figure 17-a)

Figure 17-b

K. REPLACING THE HUMIDITY SENSOR

(1) Remove the sensor by removing two screws securing it to the air duct. (See Figure 18)

(2) Mount the new humidity sensor to the air duct.

(1 or 2 screws)

Figure 18

Figure 16

Figure 17-a

(1 or 2 screws)

7-9

L. REMOVING THE TURNTABLE MOTOR

(1) Remove the glass tray and rotating ring.

(2) Remove the turntable shaft VERY CAREFULLY with hand. (Figure 19)

(3) Remove the base plate by removing 8 screws securing it to the oven cavity. (Figure 20)

(4) Disconnect the leadwire from the turntable motor terminals.

(5) Remove the 1 screw securing the turntable motor to the oven cavity ASS'Y. (Figure 21)

NOTES:

• Remove the leadwire from the turntable motor VERY

CAREFULLY.

• Be sure to grasp the connector not the wires when removing.

Figure 19

Figure 20

Wire Leads

Turntable Motor

Figure 21

7-10

INTERLOCK SYSTEM

INTERLOCK MECHANISM

The door lock mechanism is a device which has been specially designed to eliminate completely microwave activity when the door is opened during cooking and thus to prevent the danger resulting from the microwave leakage.

ADJUSTMENT PROCEDURES

To avoid possible exposure to microwave energy leakage, adjust the door latches and interlock switches, using the following procedure.

CHECK THE DOOR LATCH AND SWITCH

CLOSING.

NOTE:

The outer cover of the microwave oven is removed.

The Interlock Monitor and Secondary Interlock Switch act as the final safety switch protecting the user from microwave energy. The terminals between “COM” and

“NC” of the Interlock Monitor must close when the door is opened. After adjusting the Interlock Monitor Switch, make sure that it is correctly connected.

Mounting of the primary/monitor/secondary switches to the latch board.

(1) Set the microwave oven on its side so that you can see the latch board and the switches, as shown in

Figure 22-a.

Latch Board

(2) Close the door tightly and check gaps A and B to be sure they are no more than 1/64

”

(0.5 mm).

See Figure 22-b for close-up view of gaps A and B

(door latches). If all gaps are less than 1/64

”

(0.5 mm), adjustment of the latch board may not be necessary. Go to Steps 5 and 6 to check the sequence of the switches.

Primary

Interlock Switch

Interlock

Monitor Switch

Secondary

Interlock Switch

Figure 22-a

LATCH

NOTE:

To correct sequence of the Secondary Interlock

Switch, Primary Interlock Switch and the Interlock

Monitor Switch is very important.

If any gap is larger than 1/64

”

(0.5 mm), you will need to adjust the latch board”. Go to step 3 and follow all steps in order.

ADJUST THE LATCH AND SWITCH CLOSING

(3) Loosen the two screws holding the plastic latch board as shown.

(4) With the oven door closed tightly, move the latch board upward toward the top of the oven and/or away from the door latch until the gaps are less than 1/64

”

(0.5 mm).

Hold the latch board tightly in this position until you check the sequence of the switches in steps 5 and 6.

0-1/64"

LATCH BOARD

0-1/64"

Figure 22-b

7-11

TEST THE LATCH AND SWITCH SEQUENCE

(5) Open the oven door slowly. Watch the door latch, the Primary Switch. Release Rod and Lever on the switches to make sure they are zero to the body of the switches in the following sequence:

- Primary Interlock Switch

- Secondary Interlock Switch

- Interlock Monitor Switch

Adjust the latch board until the switches operate in this sequence. See Steps 3 and 4.

(6) Close the oven door slowly and be sure it is tightly closed. Watch the three switches to make sure they are zero to the body of the switches in the following sequence:

- Interlock Monitor Switch

- Primary Interlock Switch

- Secondary Interlock Switch

NOTE: The Interlock Monitor Switch is an added safety check on the Primary and

Secondary Interlock Switches. If the

Primary and Secondary Interlock Switches allow the oven to operate with the door open, the Monitor Switch will blow the fuse.

(7) When you achieve the proper sequence of switches in Steps 5 and 6, tighten the latch board screws at that point.

TEST THE MICROWAVE ENERGY LEAKAGE

Make sure the microwave energy leakage is below the limit of 1mW/cm 2 (with a 275 ml water load) and

5mW/cm 2 (with a 275 ml water load without the cabinet) when measured with a survey meter.

7-12

INTERLOCK CONTINUITY TEST

A. PRIMARY INTERLOCK SWITCH TEST

When the door is opened slowly, an audible click should be heard at the same time or successively at intervals and the latches should activate the switches with an audible click.

If the latches do not activate the switches when the door is closed, the switches should be adjusted in accordance with the adjustment procedure.

Disconnect the wire lead from the primary switch.

Connect the ohmmeter leads to the common

(COM) and normally open (NO) terminal of the switch. The meter should indicate an open circuit in the door open condition.

When the door is closed, the meter should indicate a closed circuit.

When the primary switch operation is abnormal, make the necessary adjustment or replace the switch with the same type of switch.

COMPONENTS

SWITCHES

(Wire leads removed)

Check for continuity of the switch with an Ohm-meter

Primary

Switch

TEST PROCEDURE

COM

NO

B. SECONDARY INTERLOCK SWITCH TEST

Disconnect the wire lead from the secondary switch.

Connect the ohmmeter leads to the common

(COM) and normally open (NO) terminals of the switch. The meter should indicate an open circuit in the door open condition. When the door is closed, the meter should indicate a closed circuit.

When the secondary switch operation is abnormal, make the necessary adjustment or replace the switch only with the same type of switch.

C. MONITOR SWITCH TEST

Disconnect the wire lead from the monitor switch.

Connect the ohmmeter leads to the common

(COM) and normally closed (NC) terminals of the switch. The meter should indicate a closed circuit in the door open condition. When the door is closed, the meter should indicate an open circuit.

When the monitor switch operation is abnormal, replace with the same type of switch.

NOTE: After repairing the door or the interlock system, it is necessary to do this continuity test before operating the oven.

Door open

RESULTS

Door closed

Monitor

Switch

Secondary

Switch

COM

NC

COM

NO

NOTE : After checking for the continuity of switches, make sure that they are connected correctly.

WARNING : FOR CONTINUED PROTECTION AGAINST EXCESSIVE RADIATION

EMISSION, REPLACE ONLY WITH IDENTICAL REPLACEMENT PARTS.

TYPE NO. SZM-V16-FA-63 OR VP-533A-OF OR V-5230Q FOR PRIMARY SWITCH

TYPE NO. SZM-V16-FA-62 OR VP-532A-OF OR V-5220Q FOR MONITOR SWITCH

TYPE NO. SZM-V16-FA-63 OR VP-533A-OF OR V-5230Q FOR SECONDARY SWITCH

7-13

TEST AND CHECKOUT PRECEDURES AND TROUBLESHOOTING

CAUTIONS

1. DISCONNECT THE POWER SUPPLY CORD FROM THE OUTLET WHENEVER REMOVING THE OUTER CASE

FROM THE UNIT. PROCEED WITH THE TEST ONLY AFTER DISCHARGING THE HIGH VOLTAGE CAPACITOR

AND REMOVING THE LEAD WIRES FROM THE INVERTER MODULE.

2. ALL OPERATIONAL CHECKS WITH MICROWAVE ENERGY MUST BE DONE WITH A LOAD (1 LITER OF

WATER IN CONTAINER) IN THE OVEN.

A. TEST PROCEDURES

COMPONENTS

INVERTER

(Lead wires removed)

TEST PROCEDURE

CN702

Heat Sink

RESULTS

E701

120V AC

MAGNETRON

(Lead wires removed)

CN701

High Voltage

Output to

Magnetron

CN703

Control Signal

In/Out

Note: Do not try to repair the inverter board, nor try to make any adjustments to the board.

Check wiring to the inverter:

1. Unplug the oven’s main power supply.

2. Visually inspect 4 connectors on the inverter board: CN701, CN702, CN703, E701 to see whether there are any signs of failure due to loose wires, bad crimping, sign of overheating, etc.

1. Measure the resistance.

(Ohm-meter scale: Rx1)

• Filament terminal

2. Measure the resistance.

(Ohm-meter scale: Rx1000)

• Filament to chassis

Normal: Less than 1 ohm

Normal: Infinite

7-14

COMPONENTS TEST PROCEDURE

Antenna

Gasket

Chassis

RESULTS

Filament

NOTE: When testing the magnetron, be sure to install the magnetron gasket in the correct position and be sure that the gasket is in good condition.

Touch Key board

SENSOR

1. Disconnect sensor connector from micom computer board.

2. Measure resistance terminal to terminal

(Select the ohm scale on the meter)

NOTE: MAKE SURE THE LEAD WIRES ARE

IN THE CORRECT POSITION.

WHEN REMOVING THE LEAD

WIRES FROM THE PARTS, BE

SURE TO GRASP THE

CONNECTOR, NOT THE WIRES.

7-15

Normal: Approximately

BK-RD: 5.6 Kohms

RD-WH: 2.8 Kohms

BK-WH: 2.8 Kohms

Abnormal:

Infinite or several

*Sensor cooking condition

1. Oven should be plugged in at least 5 minutes before sensor cooking.

2. Room temperature should not exceed 95˚F.

3. Be sure the exterior of the cooking container and the interior of the oven are dry.

4. The oven will not generate microwave energy for the first

28 seconds of the sensor cooking cycle.

COMPONENTS

FAN MOTOR

(Wire leads removed)

TEST PROCEDURE

Measure the resistance.

(Ohm-meter scale: R x 100)

A(RD)

B(BK)

C(WH)

RESULTS

Normal: Approx. 50 ~ 150 ohms

Abnormal: Infinite or several ohms.

A-B: 76 ohms

B-C: 22 ohms

A-C: 96 ohms

TURNTABLE

MOTOR

(Wire leads removed)

Measure the resistance.

(Ohm-meter scale: R x 1000)

Normal: Approx. 2 ~ 4K ohms

Abnormal: Infinite or several ohms.

STIRRER MOTOR

(Wire leads removed)

Measure the resistance.

(Ohm meter scale: Rx100)

Normal: Approx. 125 to 135 ohms

Abnormal: Infinite or several ohms.

Check for continuity of relay 2 with an ohm-meter.

(Remove wire leads from relay 2 and operate the unit.)

Relay 2

Normal:

ON: 0 ohm

OFF: Infinite ohms

Abnormal: Infinite or several ohms.

RELAY2

7-16

NOTES:

•

A MICROWAVE ENERGY TEST MUST ALWAYS BE PERFORMED WHEN THE UNIT IS SERVICED FOR

ANY REASON.

•

MAKE SURE THE WIRE LEADS ARE IN THE CORRECT POSITION.

•

WHEN REMOVING THE WIRE LEADS FROM THE PARTS, BE SURE TO GRASP THE CONNECTOR, NOT

THE WIRES.

B. CHECKOUT PROCEDURES

(1) CHECKOUT PROCEDURES FOR FUSE BLOWING

CAUTION: REPLACE BLOWN FUSE WITH 20 AMPERE FUSE.

PROBLEMS

Fuse blows immediately after the door is closed.

Fuse blows immediately after the door is opened.

CAUSES

Improper operation of the primary interlock, secondary interlock switches and/or the interlock monitor switch.

Fuse blows when the door is closed and START key is touched.

Malfunction of the high voltage transformer; the high voltage capacitor including the diode, the magnetron, the blower motor or the circuit board.

NOTES:

•

If the fuse is blown by an improper switch operation, replace all switches and the fuse at the same time.

After replacing the defective switches with new ones, make sure that they are correctly connected.

•

Check for microwave energy leakage according to INTERLOCK ADJUSTMENT PROCEDURES on page

7-11 when the primary interlock, secondary interlock switches and/or the interlock monitor switches are adjusted or replaced.

7-17

(2) CHECKOUT PROCEDURES FOR RELAY.

- PROBLEM (A) -

FAN motor turns on without touching START key when the door is closed.

NO YES

GOOD

Remove the mate connector of I/O

CON from the circuit board.

Does the unit still operate?

NO YES

Replace the circuit board

Defective

Wire Assembly

- PROBLEM (A) -

Oven lamp turns on without touching START key when the door is closed.

NO YES

GOOD

Remove the mate connector of I/O

CON from the circuit board.

Does the unit still operate?

NO YES

Replace the circuit board

Defective

Wire Assembly

Replace

Wire Assembly

- PROBLEM (B) -

FAN motor turns on When the door is closed and

START key is touched.

YES

NO

GOOD

Measure the voltage at pin NO.

1, 5 of CN1

Voltage reading: 120 V AC

NO YES

Replace the circuit board

Defective

FAN motor

Replace

Wire Assembly

- PROBLEM (B) -

Oven lamp turns on When the door is closed and

START key is touched.

YES

NO

GOOD

Measure the voltage at pin NO.

1, 4 of CN1

Voltage reading: 120 V AC

NO YES

Replace the circuit board

Defective

Oven lamp

Replace

FAN motor.

Replace

Oven lamp

7-18

(3) CHECKOUT PROCEDURES FOR CIRCUIT

BOARD

The following symptoms indicate a defective circuit board.

1) The start function fails to operate but the high voltage Systems, the interlock switches, the door sensing and the relay check good.

2) The unit with a normal relay continuously operates.

3) Proper temperature measurement is not obtained.

4) The buzzer does not sound or continues to sound.

5) Some segments of one or more digits do not light up, or they continue to light up, or segments light when they should not.

6) Wrong figures appear.

7) The figures of all digits.

8) Some of the indicators do no flicker light up.

9) The clock does not keep time properly.

NOTE: A MICROWAVE ENERGY LEAKAGE TEST MUST ALWAYS BE PERFORMED WHEN THE UNIT IS

SERVICED FOR ANY REASON.

7-19

C. TROUBLE SHOOTING

WHEN YOU GET A COMPLAINT FROM YOUR CUSTOMER, EVALUATE THE COMPLAINT CAREFULLY. IF THE

FOLLOWING SYMPTOMS APPLY, PLEASE INSTRUCT THE CUSTOMER IN THE PROPER USE OF THE

MICROWAVE OVEN. THIS CAN ELIMINATE AN UNNECESSARY SERVICE CALL.

CAUTIONS

1. Check grounding before checking for trouble.

2. Be careful of the Inverter.

3. When checking the continuity of the switches or the inverter, disconnect lead wires from these parts and then check continuity with the AC plug removed. To do otherwise may result in a false reading or damage to your meter.

4. Do not touch any part of the circuit on the PCB since static electric discharge may damage this control panel.

Always touch yourself to ground while working on this panel to discharge any static charge built up in your body. (Micom model only)

CONDITION

Microwave oven does not work.

Sparks occur.

Uneven cooking.

CAUSE

Inserting many plugs into one outlet and using them at the same time.

(blown fuse or breaker)

Microwave oven plug is not inserted tightly.

Using metallic ware and allowing it to touch the oven wall.

Ceramic ware trimmed in gold or silver powder is used.

Inconsistent intensity of microwave by their characteristics.

REMEDY

Avoid using other electrical appliances when you use the microwave oven.

Insert microwave oven plug securely.

Do not use metallic ware for cooking except where noted in the cooking guide.

Do not use any type of cookware with metallic trimming.

1. Use plastic wrap or lid.

2. Stir once or twice while cooking soup, cocoa or milk, etc.

7-20

(TROUBLE 1) The following visual conditions indicate a probable defective control circuit.

1. Incomplete segments.

• Segment missing.

• Partial segment missing.

• Digit flickering (NOTE: Slight flickering is normal.)

2. Colon does not turn on or blink.

3. A distinct change in the brightness of one or more numbers in display.

4. One or more digits in the display are not lighting.

5. Display indicates a number different from one touched, for example, key in 5 and 3 appears in the display.

6. Specific numbers will not display when key pad is touched.

7. Display does not count down with time blinking or up with clock operation.

8. Display obviously jumps in time while counting down.

9. Display counts down too fast while cooking.

10. Each indicator light does not turn on after setting cooking cycle.

11. Display time of day does not reappear when cooking is finished.

CONDITION

1. No input can be programmed.

2. Some inputs cannot be programmed.

3. Display shows a number or figure different from one touched.

4. Random programming when touching other pads.

5. Display is fixed at some figure and can not accept any input.

CHECK

Check the connection between membrane key assembly and door

PCB assembly.

Replace key membrane assembly and check operation.

RESULT

Continuity

No continuity

Everything works as specified.

Still have trouble.

CAUSE

Defective door

PCB assembly.

Loose connection.

Defective key membrane assembly.

Defective door

PCB assembly.

REMEDY

Replace door PCB assembly.

Connect them tightly.

Replace key membrane assembly.

Replace door PCB assembly.

7-21

(TROUBLE 2) Oven does not operate at all, Display window does not display any figures, and no input is accepted.

RESULT CONDITION

1. Fuse blows.

CHECK

Check continuity of monitor switch (with door closed).

Continuity.

No continuity.

CAUSE

Malfunction of the monitor switch.

Replace fuse

Check continuity of primary switch (with door opened).

Continuity.

No continuity.

Shorted contact at the primary switch.

REMEDY

Replace fuse, primary, monitor switches, and

P.C.B Assembly.

Replace fuse, primary, monitor switches, and

P.C.B Assembly.

Disconnect one side of the lead wires connected from Inverter.

Normal.

Fuse blows again

Defective door or control PCB.

Defective Inverter.

Replace door or control PCB.

Replace Inverter.

2. Fuse does not blow.

Check continuity of thermostat.

No continuity.

Continuity.

Check continuity of power supply cord.

No continuity.

Defective thermostat.

Defective power supply cord.

Replace thermostat.

Replace power supply cord.

7-22

(TROUBLE 3) Display shows all figures set, but oven does not start cooking while desired program times are set and START pad is touched.

RESULT CONDITION

1. Setting time does not count down when touching START pad.

CHECK

Check continuity of secondary switch (with door closed).

No continuity.

Continuity.

CAUSE

Defective secondary switch.

2. Fan motor or oven lamp do not turn on.

Check the connection between

CN1 connector and control PCB assembly.

Check fan motor.

Check oven lamp.

Continuity

No continuity

Abnormal

Abnormal

Normal

Defective control

PCB assembly.

Loose connection.

Defective fan motor.

Defective oven lamp.

REMEDY

Replace secondary switch.

Replace control

PCB assembly.

Connect them tightly.

Replace fan motor.

Replace oven lamp.

3. The display shows F-9.

Check the connection between magnetron, door & control PCB and inverter module.

Check the Relay 2 of control PCB assembly.

No continuity.

Continuity.

Check the inverter module.

Check the

Magnetron.

Check the power source voltage.

Abnormal

Normal

Abnormal

Normal

Abnormal

Normal

Abnormal

7-23

Loose connection.

Defective Relay2.

Defective inverter module.

Defective

Magnetron.

Unsafe AC input voltage.

Connect them tightly.

Replace control

PCB assembly.

Replace inverter module.

Replace

Magnetron.

Suggest customer contact local electric power utility co. or qualified electrician.

CONDITION

4. The display shows F-4.

CHECK

Check the connection between sensor wire and control PCB.

RESULT

Abnormal

Normal

CAUSE

Loose connection.

REMEDY

Connect them tightly.

Check the sensor.

Abnormal

Normal

Defective sensor.

Defective door or control PCB assembly.

Replace sensor.

Replace door or control PCB assembly.

(TROUBLE 4) Oven seems to be operating but little heat is produced in oven load.

CONDITION CHECK

Output is low

Check the power source voltage.

RESULT

Lower than 90% of rating voltage.

Normal

CAUSE

Decrease in power source voltage with load.

Defective

Magnetron.

REMEDY

Suggest customer contact local electric power utility co. or qualified electrician.

Replace

Magnetron.

NOTE : Simple test of power output-conducted by heating one liter water for one min. if available.

Minimum 8.5°C temperature rise is normal condition.

7-24

#EV#

13720D

EXPLODED VIEW

DOOR PARTS

13581A

13213A

13536A

13552A

WTP004

14890A

13806D

14970A

14026A

14760A

WTT029

WTT027

13651A

8-1

#EV#

23506A

CONTROLLER PARTS (I)

268771

268711

268772

8-2

#EV#

24781M

CONTROLLER PARTS (II)

24810P

250201

268712

WTT028

23572A

8-3

#EV#

33530A

OVEN CAVITY PARTS

WTT029

WTT027

WTT029

WTT027

34960A

33550P

WTT021

WTT029

WTT027

34810Q

33112U

35026G

33390A

34930R

330342

WTT022

535501

35230A

349311

WTP005

8-4

36912C

330341

63302A

WTT025

#EV#

43501A

WSZ085

LATCH BOARD PARTS

43500A

466001

466003

466001

44510A

8-5

#EV#

55893A

340512

INTERIOR PARTS (I)

WTP015

34351A

33390G

35889A

56631A

WTT028

552381

WSZ002

WTT028

568711

WTT034

WTT028

56549F

559002

54974S

WTT028

552382

WTT028

56324A

WSZ002

50CZZH

WTT028

36549S

WTP013

53550F

568772

35012A

56851H 53300B

WTT028

WTT028

340511

8-6

#EV#

INTERIOR PARTS (II)

WTP005

WTP005

568773

56501A

535502

WTT024

349312

55262A

56930V

36549V

WTT024

WTT028

50FZZA

56201A

568774

568775

568776

56411A

568771

56549B

55231C

8-7

#EV#

INSTALLATION PARTS

63861A

63300M

65862D

65862B

8-8

SCHEMATIC DIAGRAM OF P.C.B

8-17

PRINTED CIRCUIT BOARD

8-18

R96

R98

R99

RC

R92

R93

R94

R95

R84

R85

R90

R91

R80

R81

R82

R83

LOC.

PART NO DESCRIPTION

NO.

R51 0RD1000G608 RESISTOR,FIXED CARBON FILM

R55 0RD1004F608 RESISTOR,FIXED CARBON FILM

R60 0RD4702G608 RESISTOR,FIXED CARBON FILM

R61 0RD1201G608 RESISTOR,FIXED CARBON FILM

R62 0RN2003F408 RESISTOR,FIXED METAL FILM

R63 0RN1001F408 RESISTOR,FIXED METAL FILM

R67 0RN1072G408 RESISTOR,FIXED METAL FILM

R68 0RN1002G408 RESISTOR,FIXED METAL FILM

R69 0RD6600H602 RESISTOR,FIXED CARBON FILM

R70 0RD6600H602 RESISTOR,FIXED CARBON FILM

R71 0RD2004G608 RESISTOR,FIXED CARBON FILM

R72 0RD1004G608 RESISTOR,FIXED CARBON FILM

R73 0RD5103G608 RESISTOR,FIXED CARBON FILM

R74 0RD3303G608 RESISTOR,FIXED CARBON FILM

R75 0RD1503G608 RESISTOR,FIXED CARBON FILM

0RD1002F608

0RD1002F608

0RD1002F608

0RD1002F608

0RD1002F608

0RD1002F608

0RD4701F608

0RD4701F608

0RD4701F608

0RD4701F608

0RD4701F608

0RD4701F608

0RD4701F608

0RD4702F608

0RD4702F608

3B71247D

RESISTOR,FIXED CARBON FILM

RESISTOR,FIXED CARBON FILM

RESISTOR,FIXED CARBON FILM

RESISTOR,FIXED CARBON FILM

RESISTOR,FIXED CARBON FILM

RESISTOR,FIXED CARBON FILM

RESISTOR,FIXED CARBON FILM

RESISTOR,FIXED CARBON FILM

RESISTOR,FIXED CARBON FILM

RESISTOR,FIXED CARBON FILM

RESISTOR,FIXED CARBON FILM

RESISTOR,FIXED CARBON FILM

RESISTOR,FIXED CARBON FILM

RESISTOR,FIXED CARBON FILM

RESISTOR,FIXED CARBON FILM

FILTER ASSEMBLY(CIRC)

RY1 6920WRD008A RELAY

RY1 6920WRD008A RELAY

RY11 6920WRD008A RELAY

RY11 6920WRD008A RELAY

RY14 6920WRD008A RELAY

RY14 6920WRD008A RELAY

RY15 6920WRD008A RELAY

RY15 6920WRD008A RELAY

RY2 6920W5A012A RELAY

RY6 6920WRD008A RELAY

RY6 6920WRD008A RELAY

SW1 6600RRT001B SWITCH,TACT

SW2 6600RRT001B SWITCH,TACT

TC1 6016W5A0002 TRIAC

TH

U01

6322W3A012A

0IZZW5A076A

THERMISTOR,NTC

IC,DRAWING

U04

U05

0IKE455800A

0ISS791500A

IC,LINEAR

IC,LINEAR

VR1 6102W5V006A VARISTOR

ZD1 0DZ510009AE DIODE,ZENERS

ZD2 0DZ750009AC DIODE,ZENERS

SPEC

100 OHM 1/4 W 5% TA26

1M OHM 1/6 W 5% TA26

47K OHM 1/4 W 5% TA26

1.2K OHM 1/4 W 5% TA26

200K OHM 1/6 W 1% TA26

1K OHM 1/6 W 1% TA26

10.7K OHM 1/4 W 1% TA26

10K OHM 1/4 W 1% TA26

660 OHM 1/2 W 5% AXIAL TAPING 26MM SMALL

660 OHM 1/2 W 5% AXIAL TAPING 26MM SMALL

2M OHM 1/4 W 5% TA26

1M OHM 1/4 W 5% TA26

510K OHM 1/4 W 5% TA26

330K OHM 1/4 W 5% TA26

150K OHM 1/4 W 5% TA26

10K OHM 1/6 W 5% TA26

10K OHM 1/6 W 5% TA26

10K OHM 1/6 W 5% TA26

10K OHM 1/6 W 5% TA26

10K OHM 1/6 W 5% TA26

10K OHM 1/6 W 5% TA26

4.7K OHM 1/6 W 5% TA26

4.7K OHM 1/6 W 5% TA26

4.7K OHM 1/6 W 5% TA26

4.7K OHM 1/6 W 5% TA26

4.7K OHM 1/6 W 5% TA26

4.7K OHM 1/6 W 5% TA26

4.7K OHM 1/6 W 5% TA26

47K OHM 1/6 W 5% TA26

47K OHM 1/6 W 5% TA26

NOISE FILTER SHIN SHIN 15A MV-154XJ 250V

JQ1A-12V MATSUSHITA 250VAC 5A 12VDC 1A N

JQ1A-12V MATSUSHITA 250VAC 5A 12VDC 1A N

JQ1A-12V MATSUSHITA 250VAC 5A 12VDC 1A N

JQ1A-12V MATSUSHITA 250VAC 5A 12VDC 1A N

JQ1A-12V MATSUSHITA 250VAC 5A 12VDC 1A N

JQ1A-12V MATSUSHITA 250VAC 5A 12VDC 1A N

JQ1A-12V MATSUSHITA 250VAC 5A 12VDC 1A N

JQ1A-12V MATSUSHITA 250VAC 5A 12VDC 1A N

G5G-1A-DT1-LG OMRON 250VAC 16A 12VDC 1A

JQ1A-12V MATSUSHITA 250VAC 5A 12VDC 1A N

JQ1A-12V MATSUSHITA 250VAC 5A 12VDC 1A N

VERTICAL IN SUNG 12V 50MA UL,CSA

VERTICAL IN SUNG 12V 50MA UL,CSA

SM6JZ47 TOSHIBA 600V 25A MV-154XJ

T5D410J44HBPD-0 DAEWOO 100KOHM 0.5 -20-1

TMP87PM14N 64 BK TMP87CH14N OTP

KIA4558P KEC 8DIP BK LIN OPAMP

KA7915 FAIRCHILD 3PIN TO220 BK REGULARTO

SVC271D-14A SAMWHA UL/CSA/VDE TP

UZ5.1BS/B GRADE 2 PERCENT TOLERANCE ROHM

UZ-7.5BS PYUNG CHANG TP26 DO34 500MW 7.5

SVC

R

R

R

R

R

R

R

R

R

R

R

R

R

R

R

R

R

R

R

R

R

R

R

R

R

R

R

R

R

R

R

R

R

R

R

R

R

R

R

R

R

R

R

R

R

R

R

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R

R

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ALTER

6920W2D010A

6920W2D010B

6920W2D010A

6920W2D010B

6920W2D010A

6920W2D010B

6920W2D010A

6920W2D010B

6920W2D010A

6920W2D010B

0IKE791500A

R:SERVICE PARTS

8-21

P/NO : 3828W5S3018

Mar., 2003

Printed in Korea