Electrolux FMV156DBE User Manual

1

FMV 156 DBE FMV 156DS E FMV 156D QE FMV 156DC F

In the interest of user-safety the oven should be restored to its original condition and only parts identical to those speciﬁed should be used.

WARNING TO SERVICE PERSONNEL: Microwave ovens contain circuitry capable of producing very high voltage and current. Contact with the following parts may result in a severe, possibly fatal, electrical shock. (High Voltage Capacitor, High Voltage Power Transformer, Magnetron, High Voltage Rectiﬁer Assembly, High Voltage Harness etc..)

TABLE OF CONTENTS

Page PRECAUTIONS TO BE OBSERVED BEFORE AND DURING SERVICING TO

AVOID POSSIBLE EXPOSURE TO EXCESSIVE MICROWAVE ENERGY..................... INSIDE FRONT COVER

BEFORE SERVICING....................................................................................................... INSIDE FRONT COVER

WARNING TO SERVICE PERSONNEL ................................................................................................................. 3

MICROWAVE MEASUREMENT PROCEDURE..................................................................................................... 4

FOREWORD AND WARNING ............................................................................................................................... 5

PRODUCT SPECIFICATIONS ...............................................................................................................................6

GENERAL INFORMATION.................................................................................................................................... 6

OPERATION........................................................................................................................................................... 9

TROUBLESHOOTING GUIDE............................................................................................................................. 13

TEST PROCEDURE ............................................................................................................................................15

TOUCH CONTROL PANEL ASSEMBLY .............................................................................................................. 25

COMPONENT REPLACEMENT AND ADJUSTMENT PROCEDURE.................................................................29

PICTORIAL DIAGRAM......................................................................................................................................... 37

POWER UNIT CIRCUIT....................................................................................................................................... 38

LSI UNIT CIRCUIT ............................................................................................................................................... 39

PRINTED WIRING BOARD.................................................................................................................................. 40

PARTS LIST ........................................................................................................................................................ 41

PACKING AND ACCESSORIES ..........................................................................................................................45

S95M241FM156E

FMV156DBE FMV156DSE FMV156DQE FMV156DCF

OVER THE RANGE

MICROWAVE OVEN

MODELS

FMV156DCF

ELECTROLUX

SERVICE MANUAL

ElEctrolux HoME ProDuctS, INc.

P. O. Box 212378, Augusta, GA, 30917

800•944•9044

This document has been published to be used for after sales service only. The contents are subject to change without notice.

P/N 316439263Publication # 5995505459

FMV 156DB E FMV15 6D SE FMV 156 DQE FMV15 6D CF

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 genera-

tion and transmission systems shall be repaired, replaced, or adjusted by procedures described in this manual before the oven is released to the owner.

(e) A microwave leakage check to verify compliance with the Federal Performance Standard should be

performed on each oven prior to release to the owner.

BEFORE SERVICING

Before servicing an operative unit, perform a microwave emission check as per the Microwave Measurement Procedure outlined in this service manual. If microwave emissions level is in excess of the speciﬁed limit, contact ELECTROLUX HOME PRODUCTS, INC. immediately.

If the unit operates with the door open, service person should 1) tell the user not to operate the oven and 2) contact ELECTROLUX HOME PRODUCTS, INC. and Food and Drug Administration's Center for Devices and Radiological Health immediately.

Service personnel should inform ELECTROLUX HOME PRODUCTS, INC. of any certiﬁed unit found with emissions in excess of 4mW/cm2. The owner of the unit should be instructed not to use the unit until the oven has been brought into compliance.

(RD8100U)

2

WARNING TO SERVICE PERSONNEL

Don't Touch ! Danger High Voltage

Microwave ovens contain circuitry capable of producing very high voltage and current, contact with following parts fatal, electrical shock.

(Example) High Voltage Capacitor, High Voltage Power

Transformer, Magnetron, High Voltage Rectiﬁer Assembly, High Voltage Harness etc..

Read the Service Manual carefully and follow all instructions.

may result in a severe, possibly

FMV 156DB E FMV15 6D SE FMV 156 DQE FMV15 6D CF

Before Servicing

1. Disconnect the power supply cord , an d then remove outer case.

2. Open the door and block it open.

3. Discharge high voltage capacitor.

WARNING: RISK OF ELECTRIC SHOCK.

DISCHARGE THE HIGH-VOLTAGE CAPACITOR BEFORE SERVICING.

The high-voltage capacitor remains charged about 60 seconds after the oven has been switched off. Wait for 60 seconds and then short-circuit the connection of the high-voltage capacitor (that is the connecting lead of the high-voltage rectiﬁer) against the chassis with the use of an insulated screwdriver.

Whenever troubleshooting is performed the power supply must be disconnected. It may, in some cases, be necessary to connect the power supply after the outer case has been removed, in this event,

1. Disconnect the power supply cord, and then remove outer case.

2. Open the door and block it open.

3. Discharge high voltage capacitor.

4. Disconnect the leads to the primary of the power transformer.

5. Ensure that these leads remain isolated from other components and oven chassis by using insulation tape.

6. After that procedure, reconnect the power supply cord.

When the testing is completed,

1. Disconnect the power supply cord, and then remove outer case.

2. Open the door and block it open.

3. Discharge high voltage capacitor.

4. Reconnect the leads to the primary of the power transformer.

5. Reinstall the outer case (cabinet).

6. Reconnect the power supply cord after the outer case is installed.

7. Run the oven and check all functions.

After repairing

1. Reconnect all leads removed from components during testing.

2. Reinstall the outer case (cabinet).

3. Reconnect the power supply cord after the outer case is installed.

4. Run the oven and check all functions.

Microwave ovens should not be run empty. To test for the presence of microwave energy within a cavity, place a cup of cold water on the oven turntable, close the door and set the power to HIGH and set the microwave timer for two (2) minutes. When the two minutes has elapsed (timer at zero) carefully check that the water is now hot. If the water remains cold carry out Before Servicing procedure and re-examine the connections to the component being tested.

When all service work is completed and the oven is fully assembled, the microwave power output should be checked and microwave leakage test should be carried out.

3

FMV 156DB E FMV15 6D SE FMV 156 DQE FMV15 6D CF

MICROWAVE MEASUREMENT PROCEDURE

A. Requirements:

1) Microwave leakage limit (Power density limit): The power density of microwave radiation emitted by a microwave oven should not exceed 1mW/cm2 at any point 5cm or more from the external surface of the oven, measured prior to acquisition by a purchaser, and thereafter (through the useful life of the oven), 5 mW/cm2 at any point 5cm or more from the external surface of the oven.

2) Safety interlock switches: Primary interlock switch shall prevent microwave radiation emission in excess of the requirement as above mentioned, secondary interlock relay and door sensing switch shall prevent microwave radiation emission in excess of 5 mW/cm2 at any point 5cm or more from the external surface of the oven.

B. Preparation for testing: Before beginning the actual measurement of leakage, proceed as follows:

1) Make sure that the actual instrument is operating normally as speciﬁed in its instruction booklet.

Important: Survey instruments that comply with the requirement for instrumentation as prescribed by the performance standard for microwave ovens, 21 CFR 1030.10(c)(3)(i), must be used for testing.

2) Place the oven tray in the oven cavity.

3) Place the load of 275±15 ml (9.8 oz) of tap water initially at 20±5½C (68½F) in the center of the oven cavity.

The water container shall be a low form of 600 ml (20 oz) beaker with an inside diameter of approx. 8.5 cm (3-1/2 in.)

and made of an electrically nonconductive material such as glass or plastic.

The placing of this standard load in the oven is important not only to protect the oven, but also to insure that any leakage

is measured accurately.

4) Set the cooking control on Full Power Cooking Mode

5) Close the door and select a cook cycle of several minutes. If the water begins to boil before the survey is completed, replace it with 275 ml of cool water.

C. Leakage test:

Closed-door leakage test (microwave measurement)

1) Grasp the probe of the survey instrument and hold it perpendicular to the gap between the door and the body of the oven.

2) Move the probe slowly, not faster than 1 in./sec. (2.5 cm/sec.) along the gap, watching for the maximum indication on the meter.

3) Check for leakage at the door screen, sheet metal seams and other accessible positions where the continuity of the metal has been breached (eg., around the switches, indicator, and vents).

While testing for leakage around the door pull the door away from the front of the oven as far as is permitted by the

closed latch assembly.

4) Measure carefully at the point of highest leakage and make sure that the highest leakage is no greater than 4mW/cm2, and that the primary interlock switch does turn the oven OFF before any door movement.

4

SERVICE MANUAL

ELECTROLUX

OVER THE RANGE

MICROWAVE OVEN

PRODUCT DESCRIPTION

FMV 156DB E FMV15 6D SE FMV 156 DQE FMV15 6D CF

FMV156DBE / FMV156DSE

FMV156DQE / FMV156DCF

FOREWORD

This Manual has been prepared to provide Electrolux Home Products

Service Personnel with Operation and Service Information for the ELECTROLUX OVER THE RANGE MICROWAVE OVENS, FMV156DBE, FMV156DSE, FMV156DQE, FMV156DCF.

It is recommended that service personnel carefully study the entire text of this manual so that they will be qualiﬁed to render satisfactory customer service.

Check the interlock switches and the door seal carefully. Special attention should be given to avoid electrical shock and microwave radiation hazard.

WARNING

Never operate the oven until the following points are ensured. (A) The door is tightly closed. (B) The door brackets and hinges are not defective. (C) The door packing is not damaged. (D) The door is not deformed or warped. (E) There is not any other visible damage with the oven.

Servicing and repair work must be carried out only by trained service personnel.

DANGER

Certain initial parts are intentionally not grounded and present a risk of electrical shock only during servicing. Service personnel - Do not contact the following parts while the appliance is energized; High Voltage Capacitor, Power Transformer, Magnetron, High Voltage Rectiﬁer Assembly, High Voltage Harness; If provided, Vent Hood, Fan assembly, Cooling Fan Motor.

GENERAL INFORMATION

OPERATION

TROUBLESHOOTING GUIDE AND TEST PROCEDURE

TOUCH CONTROL PANEL

COMPONENT REPLACEMENT AND ADJUSTMENT PROCEDURE

WIRING DIAGRAM

PARTS LIST

All the parts marked “ * ” on parts list are used at voltages more than 250V.

Removal of the outer wrap gives access to voltage above 250V.

All the parts marked “ ∆ ” on parts list may cause undue microwave exposure, by themselves, or when they are damaged,

ELECTROLUX HOME PRODUCTS, INC.

5

FMV 156DB E FMV15 6D SE FMV 156 DQE FMV15 6D CF

PRODUCT SPECIFICATION

ITEM DESCRIPTION

Power Requirements 120 Volts / 14.1 Amperes 60 Hertz Single phase, 3 wire grounded

Power Output 950 watts (IEC TEST PROCEDURE) Operating frequency of 2450MHz

Case Dimensions Width 29-15/16" Height 15- 9/16" Depth 16-1/4"

Cooking Cavity Dimensions Width 17-11/16" Height 14-15/16"

1.5 Cubic Feet Depth 9-7/8"

Hood lamp 2 bulbs, 20W x 2, Incandescent light bulbs

Hood fan Approx. 300 C.F.M. (High mode)

Control Complement Touch Control System Clock ( 1:00 - 12:59 ) Timer (0 - 99 min. 99 seconds)

Microwave Power for Variable Cooking

Repetition Rate;

P-HI .................................................. Full power throughout the cooking time

P-90 ..................................................................... approx. 90% of Full Power

P-80 ..................................................................... approx. 80% of Full Power

P-70 ..................................................................... approx. 70% of Full Power

P-60 ..................................................................... approx. 60% of Full Power

P-50 ..................................................................... approx. 50% of Full Power

P-40 ..................................................................... approx. 40% of Full Power

P-30 .................................................................... approx. 30% of Full Power

P-20 ..................................................................... approx. 20% of Full Power

P-10 ..................................................................... approx. 10% of Full Power

P-0 ..................................................... No power throughout the cooking time

Popcorn pad, Reheat pad, Cook pad,

Defrost pad, Number selection pads Power Level pad, Timer / Clock pad Light button, Fan button, Clear/Off button, START/ Plus 1 Min button,

Oven Cavity Light 20W x 1 Incandescent light bulb

Safety Standard UL Listed FCC Authorized

DHHS Rules, CFR, Title 21, Chapter 1, Subchapter J

Weight Approx. 55 lbs.

GENERAL INFORMATION

GROUNDING INSTRUCTIONS

This oven is equipped with a three prong grounding plug. It must be plugged into a wall receptacle that is properly installed and grounded in accordance with the National Electrical Code and local codes and ordinances. In the event of an electrical short circuit, grounding reduces the risk of electric shock by providing an escape wire for the electric current.

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

6

FMV 156DB E

OVEN DIAGRAM

3-Pronged Plug

Grounded Receptacle Box

Grounding Pin

3-Pronged Receptacle

10

11

12

8

7

14

6

9

3

4

5

1

9

13

2

FMV15 6D SE FMV 156 DQE FMV15 6D CF

Electrical Requirements The oven is equipped with a 3-prong grounding plug. DO NOT UNDER ANY CIRCUMSTANCES CUT OR REMOVE THE GROUNDING PIN FROM THE PLUG. The power supply cord and plug must be connected to a separate 120 Volt AC, 60 Hz, 15 Amp. or more dedicated line, using a grounded receptacle. The receptacle should be located inside the cabinet directly above the Microwave Oven/Hood system mounting location.

1. Oven door with see-through window.

2. Door hinges.

3. Waveguide cover.

4. Turntable motor shaft.

5. Oven lamp. It will light when oven is operating or door is

open.

6. Door latches. The oven will not operate unless the door is

securely closed.

7. Auto Touch control panel

8. Time display: Digital display, 99 minutes 99 seconds.

9. Ventilation openings.

10. Light Cover.

11. Grease ﬁlters.

12. Removable turntable. The turntable will rotate clockwise or

counterclockwise.

Only remove for cleaning.

13. Removable turntable support.

14. Power supply cord

7

FMV 156DB E FMV15 6D SE FMV 156 DQE FMV15 6D CF

CONTROL PANEL

NOTE: Some one-touch cooking features such as "Plus 1 Min" are disabled after three minutes when the oven is not used.

These features are automatically enabled when the door is opened and closed or Clear-Off button is pressed.

8

OPERATION

DESCRIPTION OF OPERATING SEQUENCE

FMV 156DB E FMV15 6D SE FMV 156 DQE FMV15 6D CF

The following is a description of component functions during oven operation.

OFF CONDITION

Closing the door activates the door sensing switch and secondary interlock switch. (In this condition, the monitor switch contacts are opened.) When oven is plugged in, 120 volts A.C. is supplied to the control unit. (Figure O-1).

1. The display will show "WELCOME, PRESS CLEAR AND PRESS CLOCK".

To set any program or set the clock, you must ﬁrst touch

the STOP/CLEAR pad. The display will clear, and " : " will appear .

COOKING CONDITION

Program desired cooking time touching the NUMBER pads. When the START pad is touched, the following operations occur:

1. The contacts of relays are closed and components connected to the relays are turned on as follows.

(For details, refer to Figure O-2)

RELAY CONNECTED COMPONENTS

RY1 Oven lamp / Fan motor / Stirrer motor

RY2 Power transformer

RY3 Turntable motor

RY4 Hood fan motor

2. 120 volts A.C. is supplied to the primary winding of the power transformer and is converted to about 3.3 volts A.C. output on the ﬁlament winding, and approximately 2000 volts A.C. on the high voltage winding.

3. The ﬁlament winding voltage heats the magnetron ﬁlament and the H.V. winding voltage is sent to a voltage doubler circuit.

4. The microwave energy produced by the magnetron is channelled through the waveguide into the cavity feedbox, and then into the cavity where the food is placed to be cooked.

5. Upon completion of the cooking time, the power transformer, oven lamp, etc. are turned off, and the generation of microwave energy is stopped. The oven will revert to the OFF condition.

6. When the door is opened during a cook cycle, monitor switch, door sensing switch, primary interlock switch, and secondary interlock relay are activated with the following results. The circuits to the stirrer motor, the cooling fan motor, the turntable motor, and the high voltage components are de-energized, and the digital read-out displays the time still remaining in the cook cycle when the door was opened.

7. The monitor switch is electrically monitoring the

of the primary interlock switch, and door sensing switch

is mechanically associated with the door so that it will function in the following sequence. (1) When the door opens from a closed position, the

secondary interlock relay, door sensing switch, and primary interlock switch open their contacts, and then the monitor switch contacts close.

(2) When the door is closed from the open position,

the monitor switch contacts open ﬁrst. Then the contacts of the primary interlock switch and door sensing switch close. And contacts of

the relay (RY1) open. If the primary interlock switch and secondary interlock relay (RY2) fail with the contacts closed when the door is opened, the closing of the monitor switch contacts will form a short circuit through the monitor fuse, primary interlock switch, relay (RY1) and secondary interlock relay (RY2), causing the monitor fuse to blow.

POWER LEVEL P-0 TO P-90 COOKING

When Variable Cooking Power is programmed, the 120 volts A.C. is supplied to the power transformer intermittently through the contacts of relay (RY2) which is operated by the control unit within an interval second time base. Microwave power operation is as follows:

VARI-MODE ON TIME OFF TIME

Power 10(P-HI) 32 sec. 0 sec.

(100% power)

Power 9(P-90) 30 sec. 2 sec.

(approx. 90% power)

Power 8(P-80) 26 sec. 6 sec.

(approx. 80% power)

Power 7(P-70) 24 sec. 8 sec.

(approx. 70% power)

Power 6(P-60) 22 sec. 10 sec.

(approx. 60% power)

Power 5(P-50) 18 sec. 14 sec.

(approx. 50% power)

Power 4(P-40) 16 sec. 16 sec.

(approx. 40% power)

Power 3(P-30) 12 sec. 20 sec.

(approx. 30% power)

Power 2(P-20) 8 sec. 24 sec.

(approx. 20% power)

Power 1(P-10) 6 sec. 26 sec.

(approx. 10% power)

Power 0(P-0) 0 sec. 32 sec.

(0% power)

Note: The ON/OFF time ratio does not correspond with the

percentage of microwave power, because approx. 2 seconds are needed for heating of the magnetron

9

FMV 156DB E

To Duct

Grease Filter

Hood Intake Duct R

Hood Fan Motor

Grease Filter

To Duct

Hood Intake Duct R

Hood Fan Motor

Hood Intake Duct R

Hood Exhaust Louver

Hood Fan Motor

Charcoal Filter

FMV15 6D SE FMV 156 DQE FMV15 6D CF

VENTILATION METHODS HOT AIR EXHAUST

1. VERTICAL VENTING For this venting method, hot air rising from the conventional

range below is drawn in by the hood fan motor through the grease ﬁlters at the right and left sides of the base cover, up through the right and left sides of the oven cavity, then discharged vertically at rear center top of the oven, into the customer's vent system.

2. HORIZONTAL VENTING The air handing is the same as VERTICAL VENTING

except that the ﬁnal air discharge is directed horizontally out from the top rear of the oven into the customer's vent system.

3. RE-CIRCULATION (INSIDE VENTING) The air handing is the same as VERTICAL VENTING

except that the ﬁnal air discharge is directed horizontally through the upper front of the oven into the kitchen. IN this case, the accessory charcoal ﬁlter RK-240 must be provided to ﬁlter the air before it leaves the oven.

10

FMV 156DB E

NOTES:

1.CIRCUITS SUBJECT TO CHANGE WITHOUT NOTICE.

2. TERMINAL WITH PROJECTION OR OPPOSITE BLUE MARK ON LAMP SOCKET MUST BE CONNECTED TO NEUTRAL WIRE.

3. ONLY CERTAIN MODELS USE THE ABSOLUTE HUMIDITY SENSOR.

4. POWER TRANSFORMER LEFT (FINISH LEAD) TERMINAL MUST BE CONNECTED TO THE NEUTRAL (WHITE) WIRE.

MAG. TEMP. FUSE

CAVITY

THERMAL

CUTOUT

120VAC

60Hz

HOOD FAN THERMAL

CUT OUT

RED

PPL

COM.

RED

WHT

BLK

WHT

GRY

BRN

WHT

RED

WHT

YLW

BLK

WHT

ORG

GRN

A5

A7

A1

A3

A9

N.O.

E2

E1

RY6

HOOD MOTOR

CONTROL UNIT

N.O.

(RY1)

(RY2)

COM.

DOOR SENSING SWITCH

TTM

FMOL

HL

TURN TABLE MOTOR

FAN MOTOR

OVEN LAMP

HOOD LAMP

GRY

MONITOR

SWITCH

PRIMARY INTERLOCK SWITCH

RED

BLU

POWER

TRANSFORMER

MAGNETRON

HIGH VOLTAGE CAPACITOR xx uF

HOOD CAPACITOR

RED

BRN

WHT

SECONDARY

INTERLOCK

RELAY

OVEN LAMP RELAY

ORG

RED

COM

RED

ORG

WHT

RY5

GRY

BLK

WHT

GRY

GND

BRN

WHT

F1

F2

F3

SENSOR

BRN

H

RED

ORG

RED

HIGH VOLTAGE RECTIFIER

WHT

N.C.

WHT

BLU

WHT

HUMIDITY

C3

COM.

N.O.

PPL

WHT

RED

BLU

NOISE SUPRESSION COIL

RESISTOR 470 kW 1/2W

LINE CROSS CAPACITOR 1.0 uF 275V

LINE BYPASS CAPACITOR

0.0033 uF 250V

FUSE

20A

LINE BYPASS CAPACITOR

0.0033 uF 250V

NOISE FILTER

N

L

GND

NOTES:

1.CIRCUITS SUBJECT TO CHANGE WITHOUT NOTICE.

2. TERMINAL WITH PROJECTION OR OPPOSITE BLUE MARK ON LAMP SOCKET MUST BE CONNECTED TO NEUTRAL WIRE.

3. ONLY CERTAIN MODELS USE THE ABSOLUTE HUMIDITY SENSOR.

4. POWER TRANSFORMER LEFT (FINISH LEAD) TERMINAL MUST BE CONNECTED TO THE NEUTRAL (WHITE) WIRE.

MAG. TEMP. FUSE

CAVITY

THERMAL

CUTOUT

120VAC

60Hz

HOOD FAN THERMAL

CUT OUT

RED

PPL

COM.

RED

WHT

BLK

WHT

GRY

BRN

WHT

RED

WHT

YLW

BLK

WHT

ORG

GRN

A5

A7

A1

A3

A9

N.O.

E2

E1

RY6

HOOD MOTOR

CONTROL UNIT

N.O.

(RY1)

(RY2)

COM.

DOOR SENSING SWITCH

TTM

FMOL

HL

TURN TABLE MOTOR

FAN MOTOR

OVEN LAMP

HOOD LAMP

GRY

MONITOR

SWITCH

PRIMARY INTERLOCK SWITCH

RED

BLU

POWER

TRANSFORMER

MAGNETRON

HIGH VOLTAGE CAPACITOR xx uF

HOOD CAPACITOR

RED

BRN

WHT

SECONDARY

INTERLOCK

RELAY

OVEN LAMP RELAY

ORG

RED

COM

RED

ORG

WHT

RY5

GRY

BLK

WHT

GRY

GND

BRN

WHT

F1

F2

F3

SENSOR

BRN

H

RED

ORG

RED

HIGH VOLTAGE RECTIFIER

WHT

N.C.

WHT

BLU

WHT

HUMIDITY

C3

COM.

N.O.

PPL

WHT

RED

BLU

NOISE SUPRESSION COIL

RESISTOR 470 kW 1/2W

LINE CROSS CAPACITOR 1.0 uF 275V

LINE BYPASS CAPACITOR

0.0033 uF 250V

FUSE

20A

LINE BYPASS CAPACITOR

0.0033 uF 250V

NOISE FILTER

N

L

GND

FMV15 6D SE FMV 156 DQE FMV15 6D CF

SCHEMATIC

NOTE: CONDITION OF OVEN

1. DOOR CLOSED.

2. CLOCK APPEARS ON DISPLAY.

Figure O-1. Oven Schematic-Off Condition

Figure O-2. Oven Schematic-Cooking Condition

11

SCHEMATIC

NOTE: CONDITION OF OVEN

1. DOOR CLOSED.

2. COOKING TIME PROGRAMMED.

3. VARIA B L E C O O K I N G C O N TRO L "HIGH".

FMV 156DB E

Latch hook

Door sensing switch

Latch heads

Monitor switch

Primary interlock switch

Door

FMV15 6D SE FMV 156 DQE FMV15 6D CF

DESCRIPTION AND FUNCTION OF COMPONENTS

DOOR OPEN MECHANISM

The door is opened by pulling the door handle, refer to the Figure D-1.

Figure D-1. Door Open Mechanism

DOOR SENSING SWITCH, PRIMARY INTERLOCK SWITCH

The primary interlock switch is mounted in the lower position of the latch hook, the door sensing switch in the primary interlock system is mounted in the upper position of the latch hook is mounted on upper position of the latch hook. They are activated by the latch heads on the door. When the door is opened, the switches interrupt the circuit to all components. A cook cycle cannot take place until the door is ﬁrmly closed thereby activating both interlock switches. The primary interlock system consists of the door sensing switch and secondary interlock relay located on the control circuit board.

MONITOR SWITCH

The monitor switch is activated (the contacts opened) by the latch head on the door while the door is closed. The switch is intended to render the oven inoperative, by means of blowing the monitor fuse, when the contacts of the secondary interlock relay (RY2) and primary interlock switch fail to open when the door is opened.

Functions:

1. When the door is opened, the monitor switch contact close (to the ON condition) due to their being normally closed. At this time the secondary interlock relay (RY2), primary interlock switch are in the OFF condition (contacts open) due to their being normally open contact switches. And the contacts of relay (RY1) are in the ON condition (contacts close).

2. As the door goes to a closed position, the monitor switch contacts are ﬁrst opened and then the door sensing switch and the primary interlock switch contacts close. (On opening the door, each of these switches operate inversely.)

3. If the door is opened, and the secondary interlock relay (RY2) and primary interlock switch contacts fail to open, the monitor fuse blows simultaneously with closing of the

CAUTION: BEFORE REPLACING A BLOWN MONITOR

FUSE TEST THE DOOR SENSING SWITCH, SECONDARY INTERLOCK RELAY (RY2), RELAY (RY1), PRIMARY INTERLOCK SWITCH AND MONITOR SWITCH FOR PROPER OPERATION. (REFER TO CHAPTER "TEST PROCEDURE").

NOTE: MONITOR FUSE AND MONITOR SWITCH ARE

REPLACED AS AN ASSEMBLY.

THERMAL CUT-OUT (HOOD )

This thermal cut-out located on the right base plate. It is designed to automatically turn on the hood fan motor whenever the hot air rising from the conventional range below causes the temperature at the thermal cut-out to rise to 140OF (60OC) or higher, thus removing this hot air from around microwave oven. When the temperature around the thermal cut-out drops to 113OF (45OC) or lower, the thermal cut-out shuts off the hood fan motor.

THERMAL CUT-OUT (CAVITY )

This thermal cut-out is located on the top of the oven cavity. It is designed to prevent damage to the oven unit if the food in the oven catches ﬁre due to overheating produced by improper setting of cooking time or failure of control unit. Under normal operation, the thermal cut-out remains closed. However, the thermal cut-out will open at 293OF (145OC) causing the oven to shut down.

TURNTABLE MOTOR

The turntable motor rotates the turntable located on the bottom of the oven cavity, so that the foods on the turntable cook evenly during cooking. Turntable will turn in either direction. The turntable motor can be turned off by touching TURNTABLE ON/OFF pad.

COOLING FAN MOTOR

The cooling fan motor drives a blade which draws external cool air. This cool air is directed through the air vanes surrounding the magnetron and cools the magnetron. This air is channelled through the oven cavity to remove steam and

vapors given off from the heating foods. It is then exhausted through the exhausting air vents at the oven cavity.

HOOD FAN MOTOR

The hood fan motor is a one-speed, single-phase, double pole induction type, requiring a hood fan capacitor. It is located outside the upper rear part of the oven cavity, is to remove, from around the oven, hot air rising from the conventional electric or gas range over which it is installed. This air is then expelled either vertically or horizontally

through the customer supplied duct system, or discharged back into the kitchen.

HOOD LAMP

The hood lamps are mounted at the hood lamp angle on the base cover. The hood lamps can be turned off and on

12

FMV 156DB E FMV15 6D SE FMV 156 DQE FMV15 6D CF

TROUBLESHOOTING GUIDE

Never touch any part in the circuit with your hand or an uninsulated tool while the power supply is connected.

When troubleshooting the microwave oven, it is helpful to follow the Sequence of Operation in performing the checks. Many of the possible causes of trouble will require that a speciﬁc test be performed. These tests are given a procedure letter which will be found in the "Test Procedure "section.

IMPORTANT: If the oven becomes inoperative because of a blown monitor fuse, check the monitor switch, relay (RY1)

secondary interlock relay (RY2), door sensing switch and primary interlock switch before replacing the monitor fuse. If the monitor fuse is replaced, the monitor switch must also be replaced. Use part FFS-BA016/KIT as an assembly.

IMPORTANT: Whenever troubleshooting is performed with the power supply cord disconnected. It may in, some cases,

be necessary to connect the power supply cord after the outer case has been removed, in this event,

1. Disconnect the power supply cord, and then remove outer case.

2. Open the door and block it open.

3. Discharge high voltage capacitor.

4. Disconnect the leads to the primary of the power transformer.

5. Ensure that the leads remain isolated from other components and oven chassis by using insulation tape.

6. After that procedure, reconnect the power supply cord.

When the testing is completed

1. Disconnect the power supply cord, and then remove outer case.

2. Open the door and block it open.

3. Discharge high voltage capacitor.

4. Reconnect the leads to the primary of the power transformer.

5. Reinstall the outer case (cabinet).

6. Reconnect the power supply cord after the outer case is installed.

13

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FMV 156DB E FMV15 6D SE FMV 156 DQE FMV15 6D CF

CK = Check / RE = Replace

14

TEST PROCEDURES

PROCEDURE LETTER A MAGNETRON ASSEMBLY TEST

1. Disconnect the power supply cord, and then remove outer case.

2. Open the door and block it open.

3. Discharge high voltage capacitor.

4. To test for an open ﬁlament, isolate the magnetron from the high voltage circuit. A continuity check across the magnetron ﬁlament leads should indicate less than 1 ohm.

5. To test for a shorted magnetron, connect the ohmmeter leads between the magnetron ﬁlament leads and chassis ground. This test should indicate an inﬁnite resistance. If there is little or no resistance the magnetron is grounded and must be replaced.

6. Reconnect all leads removed from components during testing.

7. Reinstall the outer case (cabinet).

8. Reconnect the power supply cord after the outer case is installed.

9. Run the oven and check all functions.

MICROWAVE OUTPUT POWER

The following test procedure should be carried out with the microwave oven in a fully assembled condition (outer case ﬁtted).

HIGH VOLTAGES ARE PRESENT DURING THE COOK CYCLE, SO EXTREME CAUTION SHOULD BE OBSERVED.

Power output of the magnetron can be measured by performing a water temperature rise test. This test should only be used if above tests do not indicate a faulty magnetron and there is no defect in the following components or wiring: silicon rectiﬁer, high voltage capacitor and power transformer. This test will require a 16 ounce (453cc) measuring cup and an accurate mercury thermometer or thermocouple type temperature tester. For accurate results, the following procedure must be followed carefully:

1. Fill the measuring cup with 16 oz. (453cc) of tap water and measure the temperature of the water with a thermometer or thermocouple temperature tester. Stir the thermometer or thermocouple through the water until the temperature stabilizes. Record the temperature of the water.

2. Place the cup of water in the oven. Operate oven at POWER 10(HIGH) selecting more than 60 seconds cook time. Allow the water to heat for 60 seconds, measuring with a stop watch, second hand of a watch or the digital read-out countdown.

3. Remove the cup from the oven and again measure the temperature, making sure to stir the thermometer or thermocouple through the water until the maximum temperature is recorded.

4. Subtract the cold water temperature from the hot water temperature. The normal result should be

29.2 to 54.2οF(16.2 to 30.1οC) rise in temperature. If the water temperatures are accurately measured and tested for the required time period the test results will indicate if the magnetron tube has low power output (low rise in water temperature) which would extend cooking time or high power output (high rise in water temperature) which would reduce cooking time. Because cooking time can be adjusted to compensate for power output, the magnetron tube assembly should be replaced only if the water temperature rise test indicates a power output well beyond the normal limits. The test is only accurate if the power supply line voltage is 120 volts and the oven cavity is clean.

COMPONENT TEST

FMV 156DB E FMV15 6D SE FMV 156 DQE FMV15 6D CF

B POWER TRANSFORMER TEST

1. Disconnect the power supply cord, and then remove outer case.

2. Open the door and block it open.

3. Discharge high voltage capacitor.

4. Disconnect the primary input terminals and measure the resistance of the transformer with an ohmmeter. Check for continuity of the coils with an ohmmeter. On the R x 1 scale, the resistance of the primary coil should be less than 1 ohm and the resistance of the high voltage coil should be approximately 83 ohms; the resistance of the ﬁlament coil should be less than 1 ohm.

5. Reconnect all leads removed from components during testing.

6. Reinstall the outer case (cabinet).

7. Reconnect the power supply cord after the outer case is installed.

8. Run the oven and check all functions.

15

FMV 156DB E FMV15 6D SE FMV 156 DQE FMV15 6D CF

PROCEDURE LETTER

TEST PROCEDURES

(HIGH VOLTAGES ARE PRESENT AT THE HIGH VOLTAGE TERMINAL, SO DO NOT ATTEMPT TO MEASURE THE FILAMENT AND HIGH VOLTAGE.)

C HIGH VOLTAGE RECTIFIER TEST

1. Disconnect the power supply cord, and then remove outer case.

2. Open the door and block it open.

3. Discharge high voltage capacitor.

4. Isolate the rectiﬁer from the circuit. Using the highest ohm scale of the meter, read the resistance across the terminals and observe, reverse the leads to the rectiﬁer terminals and observe meter reading. If a short is indicated in both directions, or if an inﬁnite resistance is read in both directions, the rectiﬁer is probably defective and should be replaced.

5. Reconnect all leads removed from components during testing.

6. Reinstall the outer case (cabinet).

7. Reconnect the power supply cord after the outer case is installed.

8. Run the oven and check all functions.

NOTE: Be sure to use an ohmmeter that will supply a forward bias voltage of more than 6.3 volts.

D HIGH VOLTAGE CAPACITOR TEST

1. Disconnect the power supply cord, and then remove outer case.

2. Open the door and block it open.

3. Discharge high voltage capacitor.

4. If the capacitor is open, no high voltage will be available to the magnetron. Disconnect input leads and check for short or open between the terminals using an ohmmeter.

Checking with a high ohm scale, if the high voltage capacitor is normal, the meter will indicate

continuity for a short time and should indicate an open circuit once the capacitor is charged. If the above is not the case, check the capacitor with an ohmmeter to see if it is shorted between either of the terminals and case. If it is shorted, replace the capacitor.

5. Reconnect all leads removed from components during testing.

6. Reinstall the outer case (cabinet).

7. Reconnect the power supply cord after the outer case is installed.

8. Run the oven and check all functions.

COMPONENT TEST

E CAVITY THERMAL CUT-OUT TEST

1. Disconnect the power supply cord, and then remove outer case.

2. Open the door and block it open.

3. Discharge high voltage capacitor.

4. A continuity check across the thermal cut-out terminals should indicate a closed circuit unless the temperature of the thermal cut-out reaches approximately 293OF(145OC).

An open thermal cut-out indicates overheating of the oven, exchange the oven thermal cut-out and

check inside of oven cavity and for improper setting of cooking time or operation of control unit. Check for restricted air ﬂow through the vent holes of the oven cavity, especially the cooling fan and air guide.

5. Reconnect all leads removed from components during testing.

6. Reinstall the outer case (cabinet).

7. Reconnect the power supply cord after the outer case is installed.

MAGNETRON TEMPERATURE FUSE TEST

1. Disconnect the power supply cord, and then remove outer case.

2. Open the door and block it open.

3. Discharge high voltage capacitor.

4. A continuity check across the magnetron temperature fuse terminals should indicate a closed circuit unless the temperature of the magnetron temperature fuse reaches approximately 302OF(150OC). An open magnetron temperature fuse indicates overheating of the magnetron. Check for restricted air ﬂow to the magnetron, especially the cooling fan air guide.

16

TEST PROCEDURES

PROCEDURE LETTER

CAUTION: IF THE TEMPERATURE FUSE INDICATES AN OPEN CIRCUIT AT ROOM TEMPERATURE, REPLACE TEMPERATURE FUSE.

5. Reconnect all leads removed from components during testing.

6. Reinstall the outer case (cabinet).

7. Reconnect the power supply cord after the outer case is installed.

8. Run the oven and check all functions.

CAUTION: IF THE TEMPERATURE FUSE INDICATES AN OPEN CIRCUIT AT ROOM TEMPERATURE,

REPLACE TEMPERATURE FUSE.

F PRIMARY INTERLOCK SWITCH TEST

1. Disconnect the power supply cord, and then remove outer case.

2. Open the door and block it open.

3. Discharge high voltage capacitor.

4. Isolate the switch and connect the ohmmeter to the common (COM.) and normally open (NO) terminal of the switch. The meter should indicate an open circuit with the door open and a closed circuit with the door closed. If improper operation is indicated, replace the secondary interlock switch.

5. Reconnect all leads removed from components during testing.

6. Reinstall the outer case (cabinet).

7. Reconnect the power supply cord after the outer case is installed.

8. Run the oven and check all functions.

5. Reconnect all leads removed from

components during testing.

6. Reinstall the outer case (cabinet).

7. Reconnect the power supply cord after

the outer case is installed.

8. Run the oven and check all functions.

COMPONENT TEST

FMV 156DB E FMV15 6D SE FMV 156 DQE FMV15 6D CF

G PRIMARY INTERLOCK SYSTEM TEST

DOOR SENSING SWITCH

1. Disconnect the power supply cord, and then remove outer case.

2. Open the door and block it open.

3. Discharge high voltage capacitor.

4. Isolate the switch and connect the ohmmeter to the common (COM.) and normally open (NO) terminal of the switch. The meter should indicate an open circuit with the door open and a closed circuit with the door closed. If improper operation is indicated, replace the door sensing switch.

5. Reconnect all leads removed from components during testing.

6. Reinstall the outer case (cabinet).

7. Reconnect the power supply cord after the outer case is installed.

8. Run the oven and check all functions.

NOTE: If the door sensing switch contacts fail in the open position and the door is closed, the cooling

fan motor, stirrer motor and oven light will be activated by RY1.

17

FMV 156DB E

Primary Interlock Switch

Monitor Switch

Screw Driver

Ohmmeter

Red

White/ White

FMV15 6D SE FMV 156 DQE FMV15 6D CF

PROCEDURE LETTER

SECONDARY INTERLOCK RELAY (RY2)

1. Disconnect the power supply cord, and then remove outer case.

2. Open the door and block it open.

3. Discharge high voltage capacitor.

4. Disconnect two (2) wire leads from the male tab terminals of the Secondary Interlock Relay. Check the state of the relay contacts using a ohmmeter. The relay contacts should be open. If the relay contacts are closed, replace the circuit board entirely or the relay itself.

5. Reconnect all leads removed from components during testing.

6. Reinstall the outer case (cabinet).

7. Reconnect the power supply cord after the outer case is installed.

8. Run the oven and check all functions.

plate of the oven cavity with the door opened (in this condition the plunger of the monitor switch is

pushed in), the meter should indicate an open circuit. If improper operation is indicated, the switch may be defective. After testing the monitor switch, reconnect the wire lead to the monitor switch (COM) terminal and check the continuity of the monitor circuit.

H MONITOR SWITCH TEST

TEST PROCEDURES

COMPONENT TEST

1. Disconnect the power supply cord, and then remove outer case.

2. Open the door and block it open.

3. Discharge high voltage capacitor.

4. Before performing this test, make sure that the secondary interlock switch and the primary interlock relay are operating properly, according to the above Switch Test Procedure. Disconnect the wire lead from the monitor switch (COM) terminal. Check the monitor switch operation by using the ohmmeter as follows. When the door is open, the meter should indicate a closed circuit. When the monitor switch actuator is pushed by a screw driver through the lower latch hole on the front plate of the oven cavity with the door opened (in this condition the plunger of the monitor switch is pushed in), the meter should indicate an open circuit. If improper operation is indicated, the switch may be defective. After testing the monitor switch, reconnect the wire lead to the monitor switch (COM) terminal and check the continuity of the monitor circuit.

5. Reconnect all leads removed from components during testing.

6. Reinstall the outer case (cabinet).

7. Reconnect the power supply cord after the outer case is installed.

8. Run the oven and check all functions.

of the oven cavity with the door opened (in this condition the plunger of the monitor switch is pushed

in), the meter should indicate an open circuit. If improper operation is indicated, the switch may be defective. After testing the monitor switch, reconnect the wire lead to the monitor switch (COM) terminal and check the continuity of the monitor circuit.

5. Reconnect all leads removed from components during testing.

6. Reinstall the outer case (cabinet).

7. Reconnect the power supply cord after the outer case is installed.

8. Run the oven and check all functions.

18

TEST PROCEDURES

BLU BLK

YLW RED

1 2

4 5

60 Ω

102 Ω

HOOD FAN CAPACITOR

YLW

RED

BLU

BLK

1

2

4

5

SUB

60 Hz

120 v

MAIN

PROCEDURE LETTER J HOOD THERMAL CUT-OUT TEST

1. Disconnect the power supply cord, and then remove outer case.

2. Open the door and block it open.

3. Discharge high voltage capacitor.

4. A continuity check across the thermal cut-out terminals should indicate an open circuit unless the temperature of the thermal cut-out reaches approximately 140½F(60½C) or more. At that temperature, the contacts will close. The thermal cut-out opens automatically at approximately 113½F(45½C).

5. Reconnect all leads removed from components during testing.

6. Reinstall the outer case (cabinet).

7. Reconnect the power supply cord after the outer case is installed.

8. Run the oven and check all functions.

K HOOD FAN MOTOR TEST

1. Disconnect the power supply cord, and then remove outer case.

2. Open the door and block it open.

3. Discharge high voltage capacitor.

4. If the motor does not turn, touch the FAN button once and check voltage between pins "1" and "2" (Blue and Black wires) of the 6 pin connector. If 120 Volts appear and the hood capacitor is good, replace the hood fan assembly. If 120 Volts does not appear, check the motor circuit. The resistance values of motor terminals are as follows:

5. Reconnect all leads removed from components during testing.

6. Reinstall the outer case (cabinet).

7. Reconnect the power supply cord after the outer case is installed.

8. Run the oven and check all functions.

COMPONENT TEST

Resistance between;

FMV 156DB E FMV15 6D SE FMV 156 DQE FMV15 6D CF

BLU (1) AND YLW (4) = 0Ω (Shorted) BLK (2) AND YLW (4) = 60Ω BLU (1) AND BLK (2) = 60Ω RED(5) AND BLU (1) = 162Ω RED(5) AND BLK (2) = 102Ω YLW(4) AND RED (5) = 162Ω

6-PIN CONNECTOR OF HOOD FAN MOTOR

19

FMV 156DB E FMV15 6D SE FMV 156 DQE FMV15 6D CF

TEST PROCEDURES

PROCEDURE LETTER L TOUCH CONTROL PANEL ASSEMBLY TEST

The touch control panel consists of circuits including semiconductors such as LSI, ICs, etc. Therefore, unlike conventional microwave ovens, proper maintenance cannot be performed with only a voltmeter and ohmmeter. In this service manual, the touch control panel assembly is divided into two units, Control Unit and Key Unit, and also the Control Unit is divided into two units, LSI Unit and Power Unit, and troubleshooting by unit replacement is described according to the symptoms indicated.

Before testing,

1) Disconnect the power supply cord, and then remove outer case. Refer to procedure of " HOOD EXHAUST LOUVER REMOVAL ", " REMOVAL OF OVEN FROM WALL " and " OUTER CASE REMOVAL ".

2) Open the door and block it open.

3) To discharge high voltage capacitor, wait for 60 seconds.

4) Remove two (2) screws holding the hood intake duct R to the ovencavity top plate and the base plate R. And remove the hood intake duct R.

5) Disconnect the leads to the primary of the power transformer.

6) Ensure that these leads remain isolated from other components and oven chassis by using insulation tape.

1. Key Unit. NOTE ;

1) Check key unit ribbon connection before replacement.

2) Reconnect all leads removed from components during testing.

3) Re-install the hood intake duct R with two (2) screws.

4) Re-install the outer case (cabinet).

5) Reconnect the power supply cord after the outer case is installed.

6) Run the oven and check all functions.

The following symptoms indicate a defective key unit. a) When touching the pads, a certain pad produces no signal at all. b) When touching a number pad, two ﬁgures or more are displayed. c) When touching the pads, sometimes a pad produces no signal. If the key unit is defective.

1) Disconnect the power supply cord, and then remove outer case.

2) Open the door and block it open.

3) To discharge high voltage capacitor, wait for 60 seconds.

4) Replace the key unit.

5) Reconnect all leads removed from components during testing.

6) Re-install the outer case (cabinet).

7) Reconnect the power supply cord after the outer case is installed.

8) Run the oven and check all functions.

2. Control Unit. The following symptoms indicate a defective control unit. Before replacing the control unit, perform

the Key unit test (Procedure M) to determine if control unit is faulty.

2-1 In connection with pads.

a) When touching the pads, a certain group of pads do not produce a signal. b) When touching the pads, no pads produce a signal.

2-2 In connection with indicators

a) At a certain digit, all or some segments do not light up. b) At a certain digit, brightness is low. c) Only one indicator does not light. d) The corresponding segments of all digits do not light up; or they continue to light up. e) Wrong ﬁgure appears. f) A certain group of indicators do not light up. g) The ﬁgure of all digits ﬂicker.

2-3 Other possible problems caused by defective control unit.

a) Buzzer does not sound or continues to sound. b) Clock does not operate properly. c) Cooking is not possible.

COMPONENT TEST

20

PROCEDURE

G2G1 G 4

G 5

KEY UNIT

Cook

Reheat

Defrost

Power

Level

TIMER

CLOCK

Popcorn

Light

Fan

1

2

4 5

3

8

6

9

0

7

G 6 G 7 G 8 G 9 G10 G11 G12

G3

Clear

Off

START

Plus 1 Min

G1

LETTER

When testing is completed,

1) Disconnect the power supply cord.

2) Open the door and block it open.

3) To discharge high voltage capacitor, wait for 60 seconds.

4) Reconnect all leads removed from components during testing.

5) Re-install the hood intake duct R.

6) Re-install the outer case (cabinet).

7) Reconnect the power supply cord after the outer case is installed.

8) Run the oven and check all functions.

M KEY UNIT TEST

1. Disconnect the power supply cord.

2. Open the door and block it open.

3. To discharge high voltage capacitor, wait for 60 seconds.

4. Remove the control panel assembly.

5. If the display fails to clear when the CLEAR-OFF pad is depressed, ﬁrst verify the ﬂat ribbon cable is making good contact, verify that the door sensing switch (stop switch) operates properly; that is the contacts are closed when the door is closed and open when the door is open. If the door sensing switch (stop switch) is good, disconnect the ﬂat ribbon cable that connects the key unit to the control unit and make sure the door sensing switch is closed (either close the door or short the door sensing switch connecter). Use the Key unit matrix indicated on the control panel schematic and place a jumper wire between the pins that correspond to the CLEAR-OFF pad making momentary contact. If the control unit responds by clearing with a beep the key unit is faulty and must be replaced. If the control unit does not respond, it is faulty and must be replaced. If a speciﬁc pad does not respond, the above method may be used (after clearing the control unit) to determine if the control unit or key pad is at fault.

6. Reconnect all leads removed from components during testing.

7. Re-install the control panel assembly.

8. Reconnect the power supply cord.

9. Run the oven and check all functions.

TEST PROCEDURES

COMPONENT TEST

FMV 156DB E FMV15 6D SE FMV 156 DQE FMV15 6D CF

N RELAY TEST

1. Disconnect the power supply cord, and then remove outer case. Refer to procedure of " HOOD EXHAUST LOUVER REMOVAL ", " REMOVAL OF OVEN FROM WALL " and " OUTER CASE REMOVAL ".

2. Open the door and block it open.

3. To discharge high voltage capacitor, wait for 60 seconds.

4. Remove the hood intake duct R.

5. Disconnect the leads to the primary of the power transformer.

6. Ensure that these leads remain isolated from other components and oven chassis by using insulation tape.

21

FMV 156DB E FMV15 6D SE FMV 156 DQE FMV15 6D CF

PROCEDURE LETTER

TEST PROCEDURES

COMPONENT TEST

7. After that procedure, re-connect the power supply cord.

8. Check voltage between normal open terminal of the relay RY2 and the normal open terminal of the relay RY1 on the control unit with an A.C. voltmeter.

The meter should indicate 120 volts, if not check oven circuit. RY1, RY2, RY4, and RY5 Relay Test These relays are operated by D.C. voltage Check voltage at the relay coil with a D.C. voltmeter during the microwave cooking operation.

DC. voltage indicated Defective relay. DC. voltage not indicated Check diode which is connected to the relay coil. If diode

is good, control unit is defective.

RELAY SYMBOL OPERATIONAL VOLTAGE CONNECTED COMPONENTS

RY1 Approx. 26.6V D.C. Oven lamp / Fan motor / Turntable motor

RY2(COOK) Approx. 26.0V D.C. Power transformer

RY4 Approx. 26.6V D.C. Hood motor

RY5 Approx. 26.6V D.C. Hood lamp

9. Disconnect the power supply cord.

10. Open the door and block it open.

11. To discharge high voltage capacitor, wait for 60 seconds.

12. Reconnect all leads removed from components during testing.

13. Re-install the hood intake duct R.

14. Re-install the outer case (cabinet).

15. Reconnect the power supply cord after the outer case is installed.

16. Run the oven and check all functions.

O DEFROST CENTER TEST

(1) Open the door. (2) Place one cup of water in the center of the turntable tray in the oven cavity. (3) Close the door. (4) Touch the " DEFROST" pad once. (5) Touch the number pad "2". (6) Touch the number pad "5". (7) Touch the " START " button. (8) The oven is in Defrost center cooking condition. (9) The oven will operate as follows.

Menu 1ST STAGE 2ND STAGE

Steaks/Chops LEVEL TIME LEVEL TIME

0.5lbs 60% 57sec. 40% 17sec.

(8) If improper operation is indicated, the control unit is probably defective and should be checked.

P FOIL PATTERN ON THE PRINTED WIRING BOARD TEST

To protect the electronic circuits, this model is provided with a ﬁne foil pattern added to the primary on the PWB, this foil pattern acts as a fuse.

1. Foil pattern check and repairs.

1) Disconnect the power supply cord.

2) Open the door and block it open.

3) To discharge high voltage capacitor, wait for 60 seconds.

4) Remove the control unit, referring to the procedure of " CONTROL PANEL ASSEMBLY, CONTROL

UNIT AND KEY UNIT REMOVAL ".

5) Follow the troubleshooting guide given below for repair.

22

CN - A

VRS1

P

T1

RY3

(J1)

a

c

d

b

7

PROCEDURE LETTER

STEPS OCCURRENCE CAUSE OR CORRECTION

1 Only pattern at "a" is broken. *Insert jumper wire J1 and solder.

2 Pattern at "a" and "b" are broken. *Insert the coil RCILF2003YAZZ between "c" and "d".

10) Run the oven and check all functions.

2. Follow the troubleshooting guide given below, if indicator does not light up after above check and

STEPS OCCURRENCE CAUSE OR CORRECTION

The rated AC voltage is not present between

1 the normal open terminal of the relay RY2 and Check supply voltage and oven power cord. the normal open terminal of the relay RY1.

2 The rated AC voltage is present at primary Low voltage transformer or secondary circuit defective. side of low voltage transformer. Check and repair.

10) Open the door and block it open.

11) To discharge high voltage capacitor, wait for 60 seconds.

12) Reconnect all leads removed from components during testing.

13) Re-install the hood intake duct R.

14) Re-install the outer case (cabinet).

15) Reconnect the power supply cord after the outer case is installed.

16) Run the oven and check all functions.

FMV 156DB E FMV15 6D SE FMV 156 DQE FMV15 6D CF

TEST PROCEDURES

COMPONENT TEST

6) Make a visual inspection of the varistor. Check for burned damage and examine the transformer with a tester for the presence of layer short-circuit (check the primary coil resistance which is approximately 215Ω ± 10%). If any abnormal condition is detected, replace the defective parts.

7) Reconnect all leads removed from components during testing.

8) Re-install the control unit to the control panel and re-install the control panel to the oven.

9) Reconnect the power supply cord.

repairs are ﬁnished.

1) Disconnect the power supply cord, and then remove outer case. Refer to procedure of " HOOD EXHAUST LOUVER REMOVAL ", " REMOVAL OF OVEN FROM WALL " and " OUTER CASE REMOVAL ".

2) Open the door and block it open.

3) To discharge high voltage capacitor, wait for 60 seconds.

4) Remove the hood intake duct R.

5) Disconnect the leads to the primary of the power transformer.

6) Ensure that these leads remain isolated from other components and oven chassis by using insulation tape.

7) After that procedure, re-connect the power supply cord.

8) Follow the troubleshooting guide given below for repair.

9) Disconnect the power supply cord.

23

FMV 156DB E

NOISE FILTER UNIT

NOISE SUPPRESSION COIL

LINE CROSS CAPACITOR

RESISTOR

LINE BYPASS CAPACITOR

0.0033uF/ 250v

LOAD

H

N

MONITOR FUSE

FMV15 6D SE FMV 156 DQE FMV15 6D CF

PROCEDURE LETTER

Q NOISE FILTER TEST

1. Disconnect the power supply cord, and then remove outer case.

2. Open the door and block it open.

3. Discharge high voltage capacitor.

4. Disconnect the leads to the primary of the power transformer.

5. Using an ohm-meter, check between the terminals as described in the following table:

TEST PROCEDURES

COMPONENT TEST

MEASURING POINT INDICATION OF OHM-METER

Between N and H Open Circuit

Between terminal N and LOAD Short Circuit

Between terminal H and LOAD Short Circuit

If incorrect readings are obtained, replace the noise ﬁlter.

6. Reconnect all leads removed from components during testing.

7. Re-install the outer case (cabinet).

8. Reconnect the power supply cord after the outer case is installed.

9. Run the oven and check all functions.

24

TOUCH CONTROL PANEL ASSEMBLY

OUTLINE OF TOUCH CONTROL PANEL

FMV 156DB E FMV15 6D SE FMV 156 DQE FMV15 6D CF

The touch control section consists of the following units as shown in the touch control panel circuit.

(1) Key Unit (2) Control Unit (The Control unit consists of LSI Unit and

Power U nit)

The principal functions of these units and the signals communicated among them are explained below.

Key Unit

The key unit is composed of a matrix, signals generated in the LSI are sent to the key unit through P20, P21, P22, P25, and P26. When a key pad is touched, a signal is completed through the key unit and passed back to the LSI through P43, P44, P45 and P46 to perform the function that was requested.

Control Unit

Control unit consists of LSI, power source circuit, synchronizing signal circuit, reset circuit, buzzer circuit, relay circuit indicator circuit and back light circuit.

1) LSI

This LSI controls the key strobe signal, relay driving signal for oven function and indicator signal.

2) Power Source Circuit

This circuit generates voltages necessary for the control unit from the AC line voltage. In addition, the synchronizing signal is available in order to compose a basic standard time in the clock circuit.

Symbol Voltage Application

VC -5.3V LSI(IC1)

3) Synchronizing Signal Circuit

The power source synchronizing signal is available in

order to compose a basic standard time in the clock circuit. It incorporates a very small error because it works on commercial frequency.

4) Reset Circuit

A circuit to generate a signals which resetting the LSI to

the initial state when power is applied.

5) Buzzer Circuit

The buzzer is responds to signals from the LSI to emit audible sounds (key touch sound and completion

sound).

6) Door Sensing Switch

A switch to inform the LSI if the door is open or closed.

7) Relay Circuit

To drive the magnetron, fan motor, turntable motor, hood

motor, and light the oven lamp and hood lamp.

8) Indicator Circuit

This circuit consists of 22 segments and 3 common

electrodes using a Light Crystal Display.

9) Back Light Circuit

A circuit to drive the back light (Light emitting diodes

LD1-LD4).

DESCRIPTION OF LSI

LSI

The I/O signal of the LSI is detailed in the following table.

Pin No. Signal I/O Description

1-2 VL2-VL1 IN Power source voltage input terminal. Standard voltage for LCD.

3-6 AN7-AN4 IN By using the A/D converter contained in the LSI, DC voltage in accordance with the Model

Terminal to change cooking input according to the Model.

in operation is applied to set up its cooking constant.

25

FMV 156DB E

Maximum output

70% of maximum output

H : GND

L : -5V

H : GND

L : -5V

ON

OFF

OFF OFF

24 sec.

8 sec.

16.7 msec.

H : GND

L : -5V

A

B

0.1 sec.

2.0 sec.

H : GND

L : -5V

H : GND

L : -5V

16.7 msec.

During cooking

H : GND

L : -5V

FMV15 6D SE FMV 156 DQE FMV15 6D CF

Pin No. Signal I/O Description

7 AN3 OUT Back light circuit (Light emitting diodes) driving signal. 8 AN2 IN

To input signal which communicates the door open/close information to LSI.

Door close "H" level signal (0V). Door open "L" level signal (-5V). 9-10 AN1-AN0 OUT Terminal not used. 11-13 P57-P55 OUT Terminal not used. 14 CNTR0 OUT

Signal to sound buzzer (2.0 kHz).

A: key touch sound. B: Completion sound.

15 P53 OUT Terminal not used.

16 P52 OUT

Oven lamp, fan motor and turntable motor driving signal

To turn on and off shut off relay (RY1). The square

waveform voltage is delivered to the RY1 driving circuit and RY2 control circuit.

17-18 P51-P50 OUT Terminal not used. 19 P47 OUT

Magnetron high-voltage circuit driving signal.

To turn on and off the cook relay (RY2). The

signals holds "L" level during microwave cooking and "H" level while not cooking. In other cooking modes (variable cooking) the signal turns to "H" level and "L" level in repetition according to the

power level. (ON and OFF times for other power level.) 20 P46 IN

Signal coming from touch key.

When either G12 line on key matrix is touched, a corresponding signal out of P20, P21,

P22, P25 and P26 will be input into P46. When no key is touched, the signal is held at "H"

level. 21 P45 IN

Signal similar to P46.

When either G11 line on key matrix is touched, a corresponding signal will be input into

P45. 22 P44 IN

Signal similar to P46.

When either G10 line on key matrix is touched, a corresponding signal will be input into

P44. 23 P43 IN

Signal similar to P46.

When either G9 line on key matrix is touched, a corresponding signal will be input into

P43. 24 INT0 IN

Signal synchronized with commercial power source frequency.

This is the basic timing for time processing of LSI.

25 P41 OUT Terminal not used. 26 P40 IN Connected to GND through the pull-down resistor R100. 27 RESET IN

Auto clear terminal.

Signal is input to reset the LSI to the initial state when power is applied. 28-29 P71-P70 OUT Terminal not used. 30 XIN IN

Internal clock oscillation frequency input setting.

The internal clock frequency is set by inserting the ceramic ﬁlter oscillation circuit with

respect to XOUT terminal. 31 XOUT OUT

Output to control oscillation input of XIN. 32 VSS IN

VC voltage of power source circuit input.

Internal clock oscillation frequency control output.

Power source voltage: -5.0V.

26

FMV 156DB E

ON

OFF

H : GND

L

ON

OFF

H : GND

L

FMV15 6D SE FMV 156 DQE FMV15 6D CF

Pin No. Signal I/O Description

34 P26 OUT Key strobe signal. Signal applied to touch-key section. A pulse signal is input to P43-P46 terminal while one

of G7 line keys on key matrix is touched.

35 P25 OUT

Key strobe signal.

Signal applied to touch-key section. A pulse signal is input to P43-P46 terminal while one

of G6 line keys on key matrix is touched. 36 P24 OUT Terminal not used. 37 P23 OUT Terminal not used. 38 P22 OUT

Key strobe signal.

Signal applied to touch-key section. A pulse signal is input to P43-P46 terminal while one

of G3 line keys on key matrix is touched. 39 P21 OUT

Key strobe signal.

Signal applied to touch-key section. A pulse signal is input to P43-P46 terminal while one

of G2 line keys on key matrix is touched. 40 P20 OUT

Key strobe signal.

Signal applied to touch-key section. A pulse signal is input to P43-P46 terminal while one

of G1 line keys on key matrix is touched. 41 P17 OUT Terminal not used. 42 P16 OUT

Hood lamp driving signal.

To turn on and off relay(RY5). " L " level: During

Hood lamp ON. "H" level: During Hood lamp

OFF. 43 P15 OUT Terminal not used. 44 P14 OUT

Hood motor driving signal.

To turn on and off relay(RY4). "L" level: During

Hood motor ON. "H" level: During Hood motor

OFF. 45-47 P13-P11 OUT Terminal not used. 48-50 51-72

SEG24-SEG22

SEG21-SEG0

OUT Terminal not used.

OUT Segment data signal. Connected to LCD. The relation between signals are as follows:

LSI signal (Pin No.) LCD (Pin No.) LSI signal (Pin No.) LCD (Pin No.) SEG 21 (51) -------------------- SEG21 ( 1) SEG 10 (62) --------------------- SEG10 (12) SEG 20 (52) -------------------- SEG20 ( 2) SEG 9 (63) ---------------------- SEG 9 (13) SEG 19 (53) -------------------- SEG19 ( 3) SEG 8 (64) ---------------------- SEG 8 (14) SEG 18 (54) -------------------- SEG18 ( 4) SEG 7 (65) ---------------------- SEG 7 (15) SEG 17 (55) -------------------- SEG17 ( 5) SEG 6 (66) ---------------------- SEG 6 (16) SEG 16 (56) -------------------- SEG16 ( 6) SEG 5 (67) ---------------------- SEG 5 (17) SEG 15 (57) -------------------- SEG15 ( 7) SEG 4 (68) ---------------------- SEG 4 (18) SEG 14 (58) -------------------- SEG14 ( 8) SEG 3 (69) ---------------------- SEG 3 (19) SEG 13 (59) -------------------- SEG13 ( 9) SEG 2 (70) ----------------------

SEG 2 (20) SEG 12 (60) --------------------SEG12 (10) SEG 1 (71) ---------------------- SEG 1 (21) SEG 11 (61) --------------------SEG11 (11) SEG 0 (72) ----------------------

SEG 0 (22)

73/74 VCC/VREF IN Connected to GND. 75 AVSS IN Connected to VC. 76 COM3 OUT Terminal not used. 77 COM2 OUT

Common data signal: COM2.

Connected to LCD signal COM2. 78 COM1 OUT

Common data signal: COM1.

Connected to LCD signal COM1. 79 COM0 OUT

Common data signal: COM0.

Connected to LCD signal COM0. 80 VL3 IN

Power source voltage input terminal.

Standard voltage for LCD.

27

FMV 156DB E

approx. 1M ohm

E

C

B

FMV15 6D SE FMV 156 DQE FMV15 6D CF

SERVICING

1. Precautions for Handling Electronic Components

This unit uses CMOS LSI in the integral part of the circuits.

When handling these parts, the following precautions should be strictly followed. CMOS LSI have extremely high impedance at its input and output terminals. For this reason, it is easily inﬂuenced by the surrounding high voltage power source, static electricity charge in clothes, etc. and sometimes it is not fully protected by the built-in protection circuit.

In order to protect CMOS LSI.

1) When storing and transporting, thoroughly wrap them in aluminium foil. Also wrap all PW boards containing them in aluminium foil.

2) When soldering, ground the technician as shown in the ﬁgure and use grounded soldering iron and work table.

2. Shapes of Electronic Components

Transistor KRC243M

3. Servicing of Touch Control Panel

We describe the procedures to permit servicing of the

touch control panel of the microwave oven and the precautions you must take when doing so. To perform the servicing, power to the touch control panel is available either from the power line of the oven itself or from an external power source.

(1) Servicing the touch control panel with power supply

of the oven:

CAUTION: THE HIGH VOLTAGE TRANSFORMER OF THE

MIC ROWAVE OV E N IS STIL L LIVE DUR I N G SERVICING AND PRESENTS A HAZARD.

Therefore, before checking the performance of the touch

control panel,

1) Disconnect the power supply cord, and then remove

outer case.

2) Open the door and block it open.

3) Discharge high voltage capacitor.

4) Disconnect the leads to the primary of the power

transformer.

5) Ensure that these leads remain isolated from other

components and oven chassis by using insulation tape.

6) After that procedure, re-connect the power supply

cord.

After checking the performance of the touch control

panel,

1) Disconnect the power supply cord.

2) Open the door and block it open.

3) Re-connect the leads to the primary of the power

transformer.

4) Re-install the outer case (cabinet).

5) Re-connect the power supply cord after the outer case is installed.

6) Run the oven and check all functions.

A. On some models, the power supply cord between the

touch control panel and the oven itself is so short that the two can’t be separated. For those models, check and repair all the controls (sensor-related ones included) of the touch control panel while keeping it connected to the oven.

B. On some models, the power supply cord between the

touch control panel and the oven proper is long enough that they may be separated from each other. For those models, it is possible to check and repair the controls of the touch control panel while keeping it apart from the oven proper; in this case you must short both ends of the door sensing switch (on PWB) of the touch control panel with a jumper, which activates an operational state that is equivalent to the oven door being closed. As for the sensor-related controls of the touch control panel, checking them is possible if dummy resistor(s) with resistance equal to that of the controls are used.

(2) Servicing the touch control panel with power supply

from an external power source:

Disconnect the touch control panel completely from the

oven proper, and short both ends of the door sensing switch (on PWB) of the touch control panel, which activates an operational state that is equivalent to the oven door being closed. Connect an external power source to the power input terminal of the touch control panel, then it is possible to check and repair the controls of the touch control panel it is also possible to check the sensor-related controls of the touch control panel by using the dummy resistor(s).

4. Servicing Tools

Tools required to service the touch control panel

assembly.

1) Soldering iron: 30W

(It is recommended to use a soldering iron with a

grounding terminal.)

2) Oscilloscope: Single beam, frequency range: DC10MHz type or more advanced model.

3) Others: Hand tools

5. Other Precautions

1) Before turning on the power source of the control unit, remove the aluminium foil applied for preventing static electricity.

2) Connect the connectors of the key unit to the control unit being sure that the lead wires are not twisted.

3) After aluminium foil is removed, be careful that abnormal voltage due to static electricity etc. is not applied to the input or output terminals.

4) Attach connectors, electrolytic capacitors, etc. to PWB, making sure that all connections are tight.

28

FMV 156DB E FMV15 6D SE FMV 156 DQE FMV15 6D CF

COMPONENT REPLACEMENT AND ADJUSTMENT PROCEDURE

WARNING AGAINST HIGH VOLTAGE:

Microwave ovens contain circuitry capable of producing very high voltage and current, contact with following parts may result in severe, possibly fatal, electric shock.

(Example) High Voltage Capacitor, Power Transformer, Magnetron, High Voltage Rectiﬁer Assembly, High Voltage Harness etc..

WARNING: Avoid possible exposure to microwave energy. Please follow the instructions below before operat-

ing the oven.

1. Disconnect the power supply cord.

2. Make sure that a deﬁnite” click” can be heard when the microwave oven door is unlatched. (Hold the door in a closed position with one hand, then push the door open button with the other, this causes the latch leads to rise, it is then possible to hear a “click’ as the door switches operate.)

3. Visually check the door and cavity face plate for damage (dents, cracks, signs of arcing etc.).

Carry out any remedial work that is necessary before operating the oven. Do not operate the oven if any of the following conditions exist;

1. Door does not close ﬁrmly.

2. Door hinge, support or latch hook is damaged.

3. The door gasket or seal is damaged.

4. The door is bent or warped.

5. There are defective par ts in the door interlock system.

6. There are defective parts in the microwave generating and transmission assembly.

7. There is visible damage to the oven.

Do not operate the oven:

1. Without the RF gasket (Magnetron).

2. If the wave guide or oven cavity are not intact.

3. If the door is not closed.

4. If the outer case (cabinet) is not ﬁtted.

WARNING FOR WIRING

To prevent an electric shock, take the following precautions.

1. Before wiring,

1) Disconnect the power supply cord.

2) Open the door block it open.

3) Discharge the high voltage capacitor and wait for 60 seconds.

2. Don’t let the wire leads touch to the followiong parts;

1) High voltage parts:

Magnetron, High voltage transformer, High voltage

capacitor and High voltage rectiﬁer assembly.

2) Hot parts:

Oven lamp, Magnetron, High voltage transformer and

Oven cavity.

Please refer to ‘OVEN PARTS, CABINET PARTS, CONTROL PANAL PARTS, DOOR PARTS’, when carrying out any of the following removal procedures:

THE FOLLOWING ADJUSTMENTS OR COMPONENT REPLACEMENT CAN BE PERFORMED

WITHOUT REMOVING THE OVEN FROM THE WALL

1. Hood lamps, sockets, grease ﬁlter and charcoal ﬁlter.

2. Base cover and hood lamp glass assembly.

3. Turntable motor.

3) Sharp edge: Bottom plate, Oven cavity, Waveguide ﬂange,

Chassis support and other metallic plate.

4) Movable parts (to prevent a fault)

Fan blade, Fan motor, Switch, Open lever, Open

button.

3. Do not catch the wire leads in the outer case cabinet.

4. Insert the positive lock connector until its pin is locked and make sure that the wire leads do not come off even if the wire leads are pulled.

5. To prevent an error function, connect the wire leads correctly, referring to the Pictorial Diagram.

4. Hood exhaust louver.

5. Control panel assembly or components.

HOOD EXHAUST LOUVER REMOVAL

1. Disconnect the power supply cord.

2. Open the door and block it open.

3. To discharge the high voltage capacitor, wait for 60

seconds.

4. Remove the three (3) screws holding the hood exhaust louver to the oven cavity front face plate.

29

FMV 156DB E

Hood exhaust louver

Tab (left )

Tab (right)

Push

FMV15 6D SE FMV 156 DQE FMV15 6D CF

5. Pull the hood exhaust louver from the oven cavity by pushing the right and left tabs of the hood exhaust louver to remove.

6. Now, the hood exhaust louver is free.

REMOVAL OF OVEN FROM WALL (Two persons recommended to remove the oven)

1. Disconnect the power supply cord, and uncoil the power supply cord.

2. To discharge the high voltage capacitor, wait for 60 seconds.

3. Remove the turntable tray and support from the oven cavity.

4. If the exhaust damper assembly is installed, remove the one (1) screw holding the exhaust damper assembly to the rear stay, and remove the exhaust damper assembly by sliding it backward.

6. While supporting the front of the oven, pull down the two (2) mounting levers and release the oven from the unit mounting plate.

7. Pull the power cord out of the wall cabinet and remove the oven.

8. The oven is now free and can be placed on the work surface selected for servicing the oven.

9. Installation is the reverse of this procedure.

5. Remove the two (2) screws holding the oven (outer case cabinet) to the top cabinet.

OUTER CASE REMOVAL

Remove the oven from the wall, referring to "REMOVAL OF OVEN FROM WALL" and proceed as follows;

1. Disconnect the power supply cord.

2. Open the door and block it open.

3. To discharge the high voltage capacitor, wait for 60 seconds.

4. Remove four (4) screws holding the rear stay to the hood fan motor or the oven, and remove it.

5. Remove the six (6) screws from the rear of the outer case cabinet and one (1) screw at front.

6. Slide the outer case cabinet back about 1 inch (3 cm) to free it from retaining clips on the cavity face plate.

7. Disconnect the three (3) pin connector of the power supply cord from the wiring harness and remove the

power supply cord together with the outer case.

8. Nip the cord bushing with bushing pliers and release it from the outer case cabinet.

9. Remove the cord bushing and the power supply cord from the outer case cabinet.

10. Now, the power supply cord is free.

CAUTION: 1. DISCONNECT OVEN FROM POWER

SUPPLY BEFORE REMOVING OUTER CASE.

2. DI S C H A R GE TH E HIGH VO LTAG E

CAPACITOR BEFORE TOUCHING ANY OVEN COMPONENTS OR WIRING.

POWER TRANSFORMER REMOVAL

1. Disconnect the power supply cord, remove the oven from wall, and remove outer case. (Refer to procedure of "REMOVAL OF OVEN FROM WALL" AND "OUTER CASE REMOVAL".) And proceed as follows.

2. Open the door and block it open.

3. To discharge the high voltage capacitor, wait for 60 seconds.

4. Remove three (3) screws holding the hood intake duct R to the oven cavity top plate, the oven cavity front ﬂange and the fan duct. And remove the hood intake duct R.

5. Disconnect main wire harness from transformer.

6. Disconnect high voltage wire A from the transformer.

7. Disconnect ﬁlament leads of transformer from the magnetron and capacitor.

8. Remove two (2) screws holding the transformer to base plate R.

Re-install

1. Install by sliding the transformer on the base plate R with its primary terminals toward the outer case.

2. Secure the transformer with two (2) screws to base plate R.

3. Re-connect wire leads (primary and high voltage) to the transformer and ﬁlament leads of transformer to magnetron and high voltage capacitor. Refer to "PICTORIAL DIAGRAM".

4. Re-install the hood intake duct R to the oven cavity top plate, the oven cavity front ﬂange and the fan duct with three (3) screws.

5. Re-install the outer case and check that oven is operating properly.

CAUTION: MAKE SURE THE WIRE LEADS NEVER

TOUCH THE FAN BLADE.

HOOD FAN MOTOR REMOVAL

1. Disconnect the power supply cord and remove the oven from wall and remove outer case. (Refer to procedure of "Removal of Oven from Wall" and "Outer case Removal")

2. Open the door and block it open.

3. To discharge the high voltage capacitor, wait for 60

seconds.

4. Disconnect the 6-pin connector of the hood fan motor from the main wire harness located at the right edge of

30

the oven cavity top plate and release the snap band from the hood duct.

5. Remove the hood fan motor from the oven cavity top plate by lifting it up.

MAGNETRON REMOVAL

6. Now, the hood fan motor is free.

FMV 156DB E FMV15 6D SE FMV 156 DQE FMV15 6D CF

1. Disconnect the power supply cord , remove the oven from wall and remove outer case (Refer to procedure of "Removal of Oven from Wall" and "Outer case Removal".)

2. Open the door and block it open.

3. To discharge the high voltage capacitor, wait for 60 seconds.

4. Remove the three (3) screws holding the hood intake duct R to the oven cavity top plate, the oven cavity front ﬂange and the fan duct. And remove the hood intake duct R.

5. Disconnect the high voltage wire lead of the high voltage rectiﬁer assembly from the magnetron.

6. Disconnect the ﬁlament lead of the transformer from the magnetron.

7. Remove the one (1) screw holding the hood duct R to

HIGH VOLTAGE RECTIFIER AND HIGH VOLTAGE CAPACITOR REMOVAL

1. Disconnect the power supply cord , remove the oven from wall and remove outer case (Refer to procedure of "Removal of Oven from Wall" and "Outer case Removal".)

2. Open the door and block it open.

3. To discharge the high voltage capacitor, wait for 60 seconds.

4. Remove the three (3) screws holding the hood intake duct R to the oven cavity top plate, the oven cavity front ﬂange and the fan duct. And remove the hood intake duct R.

5. Disconnect the high voltage wire lead with high voltage rectiﬁer from the magnetron.

6. Disconnect ﬁlament lead of the transformer from high voltage capacitor.

7. Disconnect high voltage wire A from capacitor.

the oven cavity top plate. And remove the hood duct R from the oven cavity top plate R.

8. Remove the magnetron duct from the oven cavity, by releasing the tab of the magnetron duct from the oven cavity top plate.

9. Carefully remove four (4) mounting screws holding the magnetron to waveguide. When removing the screws hold the magnetron to prevent it from falling.

10. Remove the magnetron from the unit with care so the magnetron tube should not be hit by any metal object around the tube.

CAUTION: WHEN REPLACING THE MAGNETRON, BE

SURE THE R.F. GASKET IS IN PLACE AND MOUNTING SCREWS ARE TIGHTENED SECURELY.

8. Remove the fan duct assembly from the oven cavity, referring to the procedure of "COOLING FAN MOTOR REMOVAL"

9. Remove one (1) screw holding capacitor holder and high voltage rectiﬁer to the fan duct.

10. Disconnect the high voltage rectiﬁer assembly from the high voltage capacitor.

11. Now, the high voltage rectiﬁer assembly is free.

12. Remove capacitor from the holder.

13. Now, the high voltage capacitor is free.

CAUTION: WHEN REPLACING THE HIGH VOLTAGE

RECTIFIER ASSEMBLY, THE GROUND SIDE TERMINAL MUST BE SECURED FIRMLY WITH A GROUNDING SCREW.

HOOD FAN THERMAL CUT-OUT REMOVAL

1. Disconnect the power supply cord and remove the oven from wall and remove outer case. (Refer to procedure of "Removal of Oven from Wall" and "Outer case Removal")

2. Open the door and block it open.

3. To discharge the high voltage capacitor, wait for 60 seconds.

4. Remove the three (3) screws holding the hood intake duct

THERMAL CUT-OUT (CAVITY) REMOVAL

1. Disconnect the power supply cord and remove the oven from wall and remove outer case. (Refer to procedure of "Removal of Oven from Wall" and "Outer case Removal")

2. Open the door and block it open.

3. To discharge the high voltage capacitor, wait for 60

R to the oven cavity top plate, the oven cavity front ﬂange and the fan duct. And remove the hood intake duct R.

5. Disconnect the wire leads from the hood fan thermal cut-out.

6. Remove one (1) screw holding the thermal cut-out to the ﬂange of base plate R (turntable motor side).

7. Remove the hood fan thermal cut-out from the base plate R.

8. Now, the hood fan thermal cut-out is free.

seconds.

4. Disconnect the wire leads from the thermal cut-out (cavity).

5. Remove the thermal cut-out (cavity) from the holder at the oven cavity bottom plate.

6. Now, the thermal cut-out (cavity) is free.

31

FMV 156DB E

Rear View

Gap

Rotor

Bracket

Stator

Groove joint pliers

Coil

Side View

Shaft

Axis

Stator

These are the areas that should be held with a pliers

Rotor

Shaft

Table

Center of bracket

FMV15 6D SE FMV 156 DQE FMV15 6D CF

COOLING FAN MOTOR REMOVAL

1. Disconnect the power supply cord, remove the oven from wall and remove outer case (Refer to procedure of "Removal of Oven from Wall" and "Outer case Removal".)

2. Open the door and block it open.

3. To discharge the high voltage capacitor, wait for 60 seconds.

4. Remove the three (3) screws holding the hood intake duct R to the oven cavity top plate, the oven cavity front ﬂange and the fan duct. And remove the hood intake duct R.

5. Remove the one (1) screw holding the hood duct R to the oven cavity top plate. And remove the hood duct R.

6. Disconnect the wire leads from the fan motor.

7. Disconnect the high voltage wire lead with the high voltage rectiﬁer from the magnetron.

8. Disconnect the ﬁlament lead of the transformer from the high voltage capacitor.

9. Disconnect the high voltage wire A from the capacitor.

10. Release the wire leads from the hole of the fan duct.

11. Remove two (2) screws holding the fan duct to oven cavity top plate and the base plate R.

12. Remove the fan duct assembly from the oven cavity.

13. Remove the fan blade from the fan motor shaft according the following procedure.

14. Hold the edge of the rotor of the fan motor by using a pair of groove joint pliers.

CAUTION: * Make sure that any pieces do not enter the gap

between the rotor and the stator of the fan motor because the rotor is easily shaven by pliers and metal pieces may be produced.

* Do not touch the pliers to the coil of the fan motor

because the coil may be cut or damaged.

* Do not disﬁgure the bracket by touching with the

pliers.

15. Remove the fan blade from the shaft of the fan motor by pulling and rotating the fan blade with your hand.

16. Now, the fan blade will be free.

CAUTION: * Do not reuse the removed fan blade because the

hole (for shaft) may be larger than normal.

17. Remove the two (2) screws holding the fan motor to the fan duct.

18. Now, the fan motor is free.

INSTALLATION

1. Install the fan blade to the fan motor shaft according to the following procedure.

2. Hold the center of the bracket which supports the shaft of the fan motor on the ﬂat table.

3. Install the fan blade to the shaft of fan motor by pushing the fan blade with a small, light weight, ball peen hammer or rubber mallet.

4. Install the fan motor to the hood duct with the two (2) screws.

CAUTION: * Do not hit the fan blade with excesive force when

installing because the bracket may be disﬁgured.

* Make sure that the fan blade rotates smooth after

installation.

* Make sure that the axis of the shaft is not slanted.

5. Install the fan duct to the oven cavity top plate and base plate R with the two (2) screws.

6. Reconnect the wire leads to the fan motor, magnetron and high voltage capacitor, referring to the pictorial diagram.

7. Re-install the wire leads to the hole of the fan duct.

8. Re-install the hood intake duct R to the oven cavity top plate, the oven cavity front ﬂange and the fan duct with the three (3) screws.

9. Refer to procedure of "OUTER CASE REMOVAL". And reverse their procedure. And re-install the outer case.

32

TURNTABLE MOTOR AND FOOD LAMP SOCKETS REMOVAL

Oven lamp socket

Terminal

Wire lead

Terminal hole

Flat type small screw driver

Terminal

Push

Pull down

1

2

Lever

Positive lock¨ connector

FMV 156DB E FMV15 6D SE FMV 156 DQE FMV15 6D CF

1. Disconnect the power supply cord.

2. Open the door and block it open.

3. To discharge the high voltage capacitor, wait for 60 seconds.

4. Remove the one (1) screw holding the base cover to the oven cavity back plate.

5. Remove the three (3) screws holding the base cover to the oven cavity front face plate.

6. Open the base cover.

7. Release the two hood lamp sockets from the base cover.

8. Remove the base cover from the oven cavity by pulling down and moving to the left slightly.

OVEN LAMP AND LAMP SOCKET REMOVAL

1. Disconnect the power supply cord, remove the oven from the wall and remove the outer case. (Refer to procedure of "REMOVAL OF OVEN FROM WALL" and "OUTER CASE REMOVAL".). And proceed as follows.

2. Open the door and block it open.

3. To discharge the high voltage capacitor, wait for 60 seconds.

4. Remove the three (3) screws holding the hood intake duct R to the oven cavity top plate, the oven cavity front ﬂange and the fan duct. And remove the hood intake duct R.

5. Turn the lamp socket and release it from the magnetron duct.

6. Screw the oven lamp off from the lamp socket.

7. Now, the oven lamp is free.

8. Pull the wire leads from the oven lamp socket by pushing

POSITIVE LOCK® CONNECTOR (NO-CASE TYPE) REMOVAL

TURNTABLE MOTOR

9. Disconnect the wire leads from the turntable motor.

10. Remove one (1) screw holding turntable motor to the oven cavity.

11. Now the turntable motor is free.

HOOD LAMP SOCKET

9. Screw the hood lamp off from the lamp socket.

10. Disconnect the wire leads from the lamp socket by pushing the terminal hole of the lamp socket with the small ﬂat type screw driver.

11. Now, the lamp socket is free.

the terminal hole of the oven lamp socket with the small ﬂat type screw driver.

9. Now, the oven lamp socket is free.

1. Disconnect the power supply cord and remove the oven from wall and remove outer case. (Refer to procedure of "Removal of Oven from Wall" and "Outer case Removal")

2. Open the door and block it open.

3. To discharge the high voltage capacitor, wait for 60 seconds.

4. Push the lever of positive lock® connector.

5. Pull down on the positive lock® connector.

CAUTION: WHEN CONNECTING THE POSITIVE LOCK®

CONNECTORS TO THE TERMINALS, INSTALL THE POSITIVE LOCK® SO THAT THE LEVER

CONTROL PANEL ASSEMBLY, CONTROL UNIT AND KEY UNIT REMOVAL

1. Disconnect the power supply cord.

2. Open the door and block it open.

3. To discharge the high voltage capacitor, wait for 60

4. Remove three (3) screws holding the hood exhaust louver

5. Remove the hood exhaust louver from the oven by

6. Remove one (1) screw holding the control panel to the

seconds.

to oven cavity front face plate.

pushing the right and left tabs of the hood exhaust louver. (Refer to procedure of "HOOD EXHAUST LOUVER REMOVAL")

oven cavity front face plate.

FACES YOU.

Positive lock® connector

7. Release the control panel from the oven cavity front face plate by lifting it up.

8. Disconnect the wire leads from the relays RY1 and RY2.

9. Disconnect the connectors CN-A, CN-C and CN-E from the control unit.

10. Remove the control panel assembly from the oven.

11. Now, the control panel assembly is free.

12. Disconnect the connector CN-G from the control unit.

13. Remove two (2) screws holding the power unit to the key

33

FMV 156DB E FMV15 6D SE FMV 156 DQE FMV15 6D CF

ﬁxing plate.

14. Release the two (2) tabs holding the power unit to the key ﬁxing plate.

15. Release the three (3) tabs holding the LCD to the LCD holder.

16. Release the two (2) tabs holding the LSI unit to the LCD holder.

17. Remove the LCD holder and the LED sheet.

18. Now, the control unit is free.

19. Remove the one (1) screw holding the key ﬁxing plate to the control panel.

20. Release the six (6) tabs holding the key ﬁxing plate to the control panel.

21. Remove the key ﬁxing plate from the control panel.

22. Remove the key unit from the key ﬁxing plate.

23. Now, the key unit is free

NOTES FOR KEY UNIT REPLACEMENT

1. Do not reuse the torn key unit because the performance of the adhesive becomes weak.

2. Before attaching a new key unit, wipe off remaining adhesive on the key ﬁxing plate surfaces completely with a soft cloth soaked in alcohol.

3. When attaching the key unit to the key ﬁxing plate, adjust the upper edge and right edge of the key unit to the correct position of key ﬁxing plate. See key unit location.

4. Stick the key unit ﬁrmly to the key ﬁxing plate by rubbing with soft cloth not to scratch.

Key unit location

DOOR SENSING SWITCH, PRIMARY INTERLOCK SWITCH AND MONITOR SWITCH REMOVAL

1.

Disconnect the power supply cord and remove the oven from wall and remove outer case. (Refer to procedure of "Removal of Oven from Wall" and "Outer case Removal")

2. Open the door and block it open.

3. To discharge the high voltage capacitor, wait for 60 seconds.

4. Remove the three (3) screws holding the hood intake duct R to the oven cavity top plate, the oven cavity front ﬂange and the fan duct. And remove the hood intake duct R.

5. Remove the control panel assembly, referring to the procedure of "CONTROL PANEL ASSEMBLY , CONTROL UNIT AND KEY UNIT REMOVAL".

6. Remove the two (2) screws holding the latch hook to the oven cavity front ﬂange.

7. Remove the latch hook from the oven cavity front

8. Disconnect the wire leads of each switch.

9. Remove each switch from the latch hook by pushing the one (1) stopper tab holding each switch.

10. Now, each switch is free.

Re-install

1. Re-install each switch in its place. The primary interlock switch is in the lower position, door sensing switch is in the upper position and the monitor switch is in the middle position.

2. Re-connect wire leads to each switch. Refer to pictorial diagram.

3. Secure the latch hook (with two (2) mounting screws) to oven cavity front ﬂange.

4. Make sure that the monitor switch is operating properly and check continuity of the monitor circuit. Refer to chapter "Test Procedure" and "Adjustment procedure".

ﬂange.

DOOR SENSING SWITCH, PRIMARY INTERLOCK SWITCH AND MONITOR SWITCH ADJUSTMENT

1. Disconnect the power supply cord and remove the oven from wall and remove outer case. (Refer to procedure of "Removal of Oven from Wall" and "Outer case Removal")

2. Open the door and block it open.

3. To discharge the high voltage capacitor, wait for 60 seconds.

4. Remove the three (3) screws holding the hood intake duct R to the oven cavity top plate, the oven cavity front ﬂange and the fan duct. And remove the hood intake duct R.

5. Remove the control panel assembly, referring to the procedure of "CONTROL PANEL ASSEMBLY , CONTROL UNIT AND KEY UNIT REMOVAL".

If the door sensing switch, primary interlock switch and monitor switch do not operate properly due to a misadjustment, the following adjustment should be made.

6. Loosen the two (2) screws holding latch hook to the oven

cavity front ﬂange.

7. With door closed, adjust latch hook by moving it back and forth, and up and down. In and out play of the door allowed by the upper and lower position of the latch hook should be less than 0.5mm. The vertical position of the latch hook should be adjusted so that the door sensing switch and primary interlock switch are activated with the door closed. The horizontal position of the latch hook should be adjusted so that the monitor switch is activated with the door closed.

8. Secure the screws with washers ﬁrmly.

9. Check all of the switches operation. If any switch has not activated with the door closed, loosen screw and adjust the latch hook position.

34

Latch hook

Door sensing switch

Latch heads

Monitor switch

Primary interlock switch

Door

Upper Door Hige Pin

Upper Oven Hige

Lower Oven Hige

Lower Door Hige Pin

RE-INSTALL

Door Stopper

Door assembly

Latch Heads

Hood Exhaust Louver

Tab

After adjustment, check the following.

1. In and out play of door remains less than 0.5mm when in the latched position. First check upper position of latch hook, pushing and pulling upper portion of door toward the oven face. Then check lower portion of the latch hook, pushing and pulling lower portion of the door toward the oven face. Both results (play in the door) should be less than 0.5mm.

2. The door sensing switch and primary interlock switch interrupt the circuit before the door can be opened.

3. Monitor switch contacts close when door is opened.

4. Re-install outer case and check for microwave leakage around door with an approved microwave survey meter. (Refer to Microwave Measurement Procedure.)

DOOR REPLACEMENTDOOR ASSEMBLY REMOVAL

1. Disconnect the power supply cord.

2. Open the door and block it open.

3. To discharge the high voltage capacitor, wait for 60 seconds.

4. Remove the three (3) screws holding the hood exhaust louver to the oven cavity front face plate.

5. Remove the hood exhaust louver from the oven cavity by pushing the right and left tabs of the hood exhaust louver. (Refer to the procedure of "HOOD EXHAUST LOUVER REMOVAL".)

6. Insert a putty knife (thickness of about 0.5mm) into the gap A between the door stopper and the choke cover as shown in Figure C-3 to free engaging parts.

7. Lift up the door stopper.

8. Now, the door stopper is free from the door assembly.

9. Lift up the door assembly to release the upper and lower door hinge pins from the upper and lower oven hinges.

10. Now, the door assembly is free.

Note: When the individual parts are replaced, refer to

"Door Disassembly".

DOOR ASSEMBLY RE-INSTALL

1. On re-installing door, insert the lower oven hinge to lower door hinge pin.

2. Insert the upper oven hinge to the upper door hinge pin.

3. Shut the door (close the contacts of inter lock switches).

4. Make sure upper and lower oven hinges are inserted into the upper an lower door hinge pins.

5. Make sure the door is parallel with oven face lines (left and upper side lines) and door latch heads pass through latch holes correctly.

6. Re-install the door stopper to the door assembly.

7. Re-install the hood exhaust louver to the oven cavity front face plate with the three (3) screws.

Note: After any service to the door;

(A) Make sure that door sensing switch and primary

interlock switch are operating properly. (Refer to chapter "Test Procedures".)

(B) An approved microwave survey meter should be

used to assure compliance with proper microwave radiation emission limitation standards.

Figure C-1. Latch Switch Adjustments

After any servicing, make sure of the following :

1. Door latch heads smoothly catch latch hook through latch holes and that latch head goes through center of latch hole.

2. Deviation of door alignment from horizontal line of cavity face plate is to be less than 1.0mm.

3. Door is positioned with its face pressed toward cavity face plate.

4. Re-install outer case and check for microwave leakage around door with an approved microwave survey meter. (Refer to Microwave Measurement Procedure.)

Note: The door on a microwave oven is designed to

act as an electronic seal preventing the leakage of microwave energy from oven cavity during cook cycle. This function does not require that door be air-tight, moisture (condensation)-tight or light-tight. Therefore, occasional appearance of moisture, light or sensing of gentle warm air movement around oven door is not abnormal and do not of themselves indicate a leakage of microwave energy from oven cavity.

Figure C-2. Door Replacement and adjustment

35

FMV 156DB E FMV15 6D SE FMV 156 DQE FMV15 6D CF

FMV 156DB E

Figure C-3. Door Disassembly

A

Choke Cover

Door Frame

Door Stopper

Putty Knife

FMV15 6D SE FMV 156 DQE FMV15 6D CF

DOOR DISASSEMBLY

1. Disconnect the power supply cord.

2. Open the door and block it open.

3. To discharge the high voltage capacitor, wait for 60 seconds.

4. Remove the three (3) screws holding the hood exhaust louver to the oven cavity front face plate.

5. Remove the hood exhaust louver from the oven cavity by pushing the right and left tabs of the hood exhaust louver. (Refer to the procedure of "HOOD EXHAUST LOUVER REMOVAL".)

6. Remove door assembly, referring to " D O O R REPLACEMENT".

Replacement of door components are as follows:

7. Place door assembly on a soft cloth with latches facing up.

Note: As the engaging part of choke cover and door frame

are provided at 15 places, do not force any particular part.

CHOKE COVER

8. Insert a putty knife (thickness of about 0.5mm) into the gap A between the choke cover and door stopper and between the choke cover and the door frame as shown Figure C-3 to free engaging parts.

9. Pry the choke cover by inserting a putty knife in order shown in Figure C-3.

10. Now choke cover is free from door panel and door frame.

NOTE: When carrying out any repair to the door, do

not bend or warp the slit choke (tabs on the door panel assembly) to prevent microwave leakage.

DOOR FRAME ASSEMBLY

11. Remove two (2) screws holding the door panel to the door frame assembly.

12. Release the door panel from the door frame assembly.

NOTE: It is easier to release the engaging parts of the upper

or lower door hinge pin side at ﬁrst.

13. Now, door frame assembly is free.

LATCH SPRING, LATCH HEAD AND DOOR PANEL

14. Release the latch spring from the tab of the latch head and tab of the door frame.

15. Release the latch head from the door frame.

16. Now, the latch spring and latch head are free.

36

FMV 156DB E

6

4 5

1

2

3

6

4 5

1

2

3

A

B

C

D

E

F

G

H

A

B

C

D

E

F

G

H

CONTROL UNIT

Power Supply

cord 120V 60Hz

123

WHT

GRN

BLK

WHT

GRN/GRN

RED/ORG

CAVITY

THERMAL

CUT-OUT

RED

FAN

MOTOR

TURNTABLE

MOTOR

WHT

BRN

WHT

BLK

WHT

BRN

WHT

HOOD LAMPS

& SOCKETS

Blue

Marking

Blue Marking

OVEN LAMP & SOCKET

to Chassis Support

CN-E

WHT

PRIMARY

INTERLOCK

SWITCH

N.O.

N.C.

COM.

MONITOR

SWITCH

GRN

RED

N.O.

COM.

DOOR SENSING SWITCH

CN-C

CN-E

CN-A

RY1

N.O.

RY1

COM.

RY2

N.O.

RY2

COM.

GRY

HOOD FAN MOTOR

1

2

345

6

RED

YLW

BLU

BLK

RED

YLW

BLU

BLK

1

2

RED

GRN

1

2

34567

YLW

BLK

PPL

RED

CN-A

HOOD FAN

THERMAL

CUT-OUT

RED

GRY

WHT

GRY

GRN

to Right Base Plate

RED

BLK

RED

COM.

N.O.

RY1

RY2

T1

1 2

(POWER UNIT)

CN-B

RED

9

BRN

8

1

2

345

RED

CN-C

WHT

RED

ORG

GRN

WHT

GRY

RED

WHT

RED

WHT

NOISE FILTER

BOARD

N

H

BLU

PINK or

ORG or

WHT

RED

BRN

PINK or

ORG or

PPL

ORG

BRN

ORG

BRN

MAGNETRON

TEMP

FUSE

H G

I H

T L O V

AG

E

C A P A C

IT

OR

H G

I H

E G A T L

O V

A E R

I W

. V

. H

R E

I F

I T C E R

S T N E N

O P

M

O C

E G A

T L

O VH

G

I H

N O R T E N G A M

R E

W O P

R E M R O F S N A R T

D E R

WH

T

T H W

FILAMENT WIRE MUST BE

TWISTED WITH DIODE WIRE

(TWICE)

H G

I H

E G A T L O V

B E R

I W

NOTE:

WIRE DRESS

FMV15 6D SE FMV 156 DQE FMV15 6D CF

Figure S-1. Pictorial Diagram

37

FMV 156DB E

6

4 5

1

2

3

6

4 5

1

2

3

A

B

C

D

E

F

G

H

A

B

C

D

E

F

G

H

FMV15 6D SE FMV 156 DQE FMV15 6D CF

38

Figure S-2. Power Unit Circuit

FMV 156DB E

6

4 5

1

2

3

6

4 5

1

2

3

A

B

C

D

E

F

G

H

A

B

C

D

E

F

G

H

FMV15 6D SE FMV 156 DQE FMV15 6D CF

Figure S-3. LSI Unit Circuit

39

FMV 156DB E

6

4 5

1

2

3

6

4 5

1

2

3

A

B

C

D

E

F

G

H

A

B

C

D

E

F

G

H

FMV15 6D SE FMV 156 DQE FMV15 6D CF

Figure S-4. Printed Wiring Board

40

FMV 156DB E FMV15 6D SE FMV 156 DQE FMV15 6D CF

PARTS LIST

Note: The parts marked “∆” may cause undue microwave exposure. The parts marked “*” are used in voltage more than 250V.

REF. NO. PART NO. DESCRIPTION Q'TY CODE

ELECTRIC PARTS

1 FC-QZB050MRK0A High voltage assembly 1 AH 2 Note 1 High voltage capacitor 1 AP 3 RMOTDA264WRZZ Turntable motor 1 AL 4 RTHM-A135WRZZ Thermal cut-out 145 5 RTHM-A136WRZZ Thermal cut-out N.O. 60 6 RTRN-B096MRE0 Power transformer 1 AY 7 RV-MZA293WRE0 Magnetron 1 BK 8 QSW-MA085WRE0 Primary interlock and door sensing switches 2 AE 9 FFS-BA016/KIT Monitor switch (V-16G-2C25)/fuse assembly(20A 250V AC) 1 AF 10 FACCDB011MRE0 Power supply cord 1 AQ 11 QSOCLB006MRE0 Oven lamp socket 3 AE 12 FMOTEA469WRKZ Hood fan motor 1 BA 13 RMOTEB031MRE0 Fan motor 1 AT 14 RLMPTA086WRZZ Oven lamp 3 AE

15 LSTY-B026MRP0 Rear stay 1 AE 16 PDIF-B048MRF0 C Hood exhaust louver [FMV156DBD/FMV156DCE] 1 AQ 16 PDIF-B049MRF0C Hood exhaust louver [FMV156DSD] 1 AQ 16 PDIF-B050MRF0A Hood exhaust louver [FMV156DQD] 1 AQ 17 GDAI-B094MRP0 Base plate R 1 AG 18 HDECQB055MRF0 Front panel L [FMV156DBD] 1 AL 18 HDECQB053MRF0 B Front panel L [FMV156DSD] 1 AL 18 HDECQB054MRF0 Front panel L [FMV156DQD] 1 AL 18 FDECQB006MRK0 Front panel L [FMV156DCE] 1 AL 19 GCABUB103MRP0 Outer case cabinet [FMV156DBD/FMV156DCE] 1 AZ 19 GCABUB105MRP0 Outer case cabinet [FMV156DSD] 1 AZ 19 GCABUB110MRP0 Outer case cabinet [FMV156DQD] 1 AZ 20 TMAPCB100MRR0 Schematic diagram 1 AB 21 FANGKB009MRY0 Hood lamp glass assembly 1 AN 22 PCOVPB096MRT0 Base cover [FMV156DBD/FMV156DCE] 1 AV 22 PCOVPB097MRT0 Base cover [FMV156DSD] 1 22 PCOVPB102MRT0 Base cover [FMV156DQD] 1

Ο

C (Cavity) 1 AF

Ο

C (Hood Fan) 1 AH

CABINET PARTS

CONTROL PANEL PARTS

23 CPWBFB100MRU0 Control unit 1 BE 24 HPNLCB201MRR0 Control panel sub. assembly [FMV156DBD] 1 AX 24 HPNLCB198MRR0 Control panel sub. assembly [FMV156DSD] 1 AX 24 HPNLCB199MRR0 Control panel sub. assembly [FMV156DQD] 1 AX 24 FPNLCB501MRK0 Control panel sub. assembly [FMV156DCE] 1 AX 25 FUNTKB418/KIT Key unit [FMV156DBD/FMV156DCE] 1 AQ 25 FUNTKB419/KIT Key unit [FMV156DSD] 1 AQ 25 FUNTKB420/KIT Key unit [FMV156DQD] 1 AQ

26 LANGQB061MRP0 Key xing plate 1 AQ

27 XEPS730P10XS0 Screw 1 AB 28 XEPS730P08XS0 Screw 4 AB

OVEN PARTS

29 LSTPPB038MRF0 Door stopper 1 AB 30 FROLPB025MRK0 Turntable support assembly 1 AN 31 NTNT-A108WREZ Turntable tray 1 AM 32 LBNDKB009MRP0 Capacitor holder 1 AB 33 PDUC-B111MRF0 A Magnetron duct 1 AF

34 FPWBFA380WRKZ Noise lter 1 AD

35 Note 1 High voltage wire B 1 -- 36 PPACGB014MRF0 Turntable motor packing 1 AA 37 PHOK-B024MRF0 Latch hook 1 AF 38 LANGTB210MRP0 Unit mounting plate 1 AS 39 NFANPB006MRE0 Fan blade 1 AC 40 LBSHC0037WRE0 Cord bushing 1 AB 41 QFS-TA013WRE0 Magnetron fuse 1 AC 42 PDUC-B146MRP0 Hood intake duct R 1 AG 43 PCOVPB085MRP0 Waveguide cover 1 AH 44 XCBS730P08000 Screw 4 AB 45 LANGTB055MRP0 Chassis support 2 AD 46 PDUC-B115MRF0 Hood duct R 1 AQ

41

FMV 156DB E FMV15 6D SE FMV 156 DQE FMV15 6D CF

REF. NO. PART NO. DESCRIPTION Q'TY CODE

47 PDUC-B114MRF0 Hood duct L 1 AQ 48 PDUC-B174MRP0 Fan duct 1 AH

49 PDUC-B117MRF0 Orice 1 AC

50 TINSEB386MRR1 Installation instructions 1 AC

DOOR PARTS

51 CDORFB410MRK0 Door assembly [FMV156DBD] 1 BB 51 CDORFB413MRK0 Door assembly [FMV156DSD] 1 BB 51 CDORFB414MRK0 Door assembly [FMV156DQD] 1 BB 51 CDORFB411MRK0 Door assembly [FMV156DCE] 1 BB 52 FDORFB086MRT0 Door panel assembly [FMV156DBD/FMV156DCE] 1 AW 52 FDORFB089MRT0 Door panel assembly [FMV156DSD] 1 AW 52 FDORFB090MRT0 Door panel assembly [FMV156DQD] 1 AW 53 FCOV-B309MRK0 Door frame assembly [FMV156DBD] (not supplied on S/S) 1 AY 53 FCOV-B310MRK0 Door frame assembly [FMV156DSD] 1 AY 53 FCOV-B311MRK0 Door frame assembly [FMV156DQD] 1 AY 54 LSTPPB030MRF0 Latch head 1 AC 55 MSPRTA046WRE0 Latch spring 1 AB 56 GCOVHB049MRF0 Choke cover 1 AG

57 PSHEPB016MRE0 Sealer lm 1 AE

58 JHNDPB049MRF0 Door handle [FMV156DBD/FMV156DCE] 1 AH 58 JHNDPB050MRF0 Door handle [FMV156DSD] 1 AH 58 JHNDPB051MRF0 Door handle [FMV156DQD] 1 AH 59 XCPS740P08000 Screw 4 AA 60 XCPS740P10000 Screw 2 AA

MISCELLANEOUS

61 CFZK-B816MRK0 Installation material assembly 1 AH 62 LBSHC0037WRE0 Grommet 1 AC 63 LX-BZ0195WRE0 Toggle screw 4 AC 64 XBPS750P85000 Screw : 5mm x 85mm 2 AA 65 XOTS740P12000 Screw : 4mm x 12mm 3 AA 66 XTSS750P35000 Screw : 5mm x 35mm 6 AA 67 XWHS750-16300 Washer 2 AA 68 LANG-B002MRP0 Scale plate 2 AD 69 TINSEB445MRR2 Operation manual 1 AD 70 TINSKB108MRR0 Top template 1 AB 71 QW-QZB025MRE0 High voltage wire A 1 AT 72 FW-VZB287MRE0 Main harness 1 AT 73 TCAUAB055MRR0 DHHS service caution label 2 AA 74 TCAUAB050MRR0 Monitor caution label 1 AA 75 TCAUAB048MRR0 Revised DHHS/GRD C/label 1 AB

76 PFIL-B016MRE0 Charcol lter 1 AT 77 PFIL-B002MRE0 Grease lter 2 AF

78 FFTA-B005MRK0 Exhaust damper assembly 1 AH

SCREWS,NUTS, WASHERS AND OTHER

79 LX-CZB004MRE0 Special screw (FMV156DBD/FMV156DCE) 3 AA 79 LX-CZB006MRE0 Special screw (FMV156DSD) 3 AA 79 LX-CZB008MRE0 Special screw (FMV156DQD) 3 AA 80 XOTS740P12000 Screw : 4mm x 12mm 29 AA 81 XOTS740P12000 Screw : 4mm x 12mm 1 AA 82 XHTS740P08RV0 Screw : 4mm x 8mm 4 AA 83 LX-CZ0052WRE0 Special screw 2 AA 84 LX-BZA041WRE0 Special screw 4 AA

Note 1: Supplied on higher level

42

FMV 156DB E

6

4 5

1

2

3

6

4 5

1

2

3

A

B

C

D

E

F

G

H

A

B

C

D

E

F

G

H

81

38

20

45

83

8

74

46

45

73

12

80

18

43

36

44

77

22

11

80

14

7-2

80

3

9

21

77

8

49

44

42

84

48

33

6

5

80

82

80

17

37

82

7

14

11

31

30

39

44

81

80

19

47

78

15

80

40

10

81

41

13

2

1

32

80

4

75

76

16

79

44

34

9

FMV15 6D SE FMV 156 DQE FMV15 6D CF

OVEN AND CABINET PARTS

43

FMV 156DB E

6

4 5

1

2

3

6

4 5

1

2

3

A

B

C

D

E

F

G

H

A

B

C

D

E

F

G

H

59

57

56

29

52

53

58

59

60

55

54

51

71

72

28

27

24

25

26

23

28

61

62

63

67

68

65

66

64

35

FMV15 6D SE FMV 156 DQE FMV15 6D CF

CONTROL PANEL PARTS

DOOR PARTS

MISCELLANEOUS

44

FMV 156DB E

6

4 5

1

2

3

6

4 5

1

2

3

A

B

C

D

E

F

G

H

A

B

C

D

E

F

G

H

31

TURNTABLE TRAY

TOP PAD

BOTTOM PAD

PACKING CASE

ACCESSORY PACK

WRAP COVER

DOOR PAD

Non-replaceable items

DOOR PROTECTOR

GREASE FILTER (x 2)

77

INSTALL MATERIAL ASSEMBLY

61

69

OPERATION MANUAL

70

TOP/WALL TEMPLATE

EXHAUST DAMPER ASSEMBLY

78

50

INSTALLATION INSTRUCTIONS

FMV15 6D SE FMV 156 DQE FMV15 6D CF

PACKING AND ACCESSORIES

45

FMV 156DB E FMV15 6D SE FMV 156 DQE FMV15 6D CF

NOTES

46

NOTES

FMV 156DB E FMV15 6D SE FMV 156 DQE FMV15 6D CF

47

FMV 156DB E FMV15 6D SE FMV 156 DQE FMV15 6D CF

No part of this publication may be reproduced, stored in retrieval systems, or transmitted in any form or by any means, electronic, mechanical, photocopying, recording, or otherwise, without prior written permission of the publisher.

48

Electrolux FMV156DBE User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual