SHARP R1514 Service Manual

SUPPLEMENTAL

4

R-1514

PRECAUTIONS TO BE OBSERVED BEFORE AND
DURING SERVICING TO AVOID POSSIBLE EXPO­SURE TO EXCESSIVE MICROWAVE ENERGY

(a) Do not operate or allow the oven to be operated with the door open.
(b) Make the following safety checks on all ovens to be serviced before activating the magnetron or other

microwave source, and make repairs as necessary: (1) interlock operation, (2) proper door closing, (3) seal
and sealing surfaces (arcing, wear, and other damage), (4) damage to or loosening of hinges and latches,
(5) evidence of dropping or abuse.

(c) Before turning on microwave power for any service test or inspection within the microwave generating

compartments, check the magnetron, wave guide or transmission line, and cavity for proper alignment,
integrity, and connections.

(d) Any defective or misadjusted components in the interlock, monitor, door seal, and microwave generation

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

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

performed on each oven prior to release to the owner.

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 SHARP ELECTRONICS
CORPORATION immediately @1-800-237-4277.

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

Service personnel should inform SHARP ELECTRONICS CORPORATION 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.

32

W ARNING TO SER VICE PERSONNEL

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 Trans-

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

Read the Service Manual carefully and follow all
instructions.

may result in a severe, possibly

Don't Touch !
Danger High Voltage

R-1514

Before Servicing

1. Disconnect the power supply cord , and 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 high­voltage capacitor (that is the connecting lead of the high­voltage 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 re­examine 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.

1

R-1514

MICROW A VE 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±5˚C (68˚F) 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 and the secondary interlock relay do turn the oven OFF before any door movement.

NOTE: After servicing, record data on service invoice and microwave leakage report.

2

R-1514

SERVICE MANUAL

OVER THE RANGE

MICROWAVE OVEN

R-1514

FOREWORD

This Manual has been prepared to provide Sharp Electronics Corp. Service Personnel with Operation and Service
Information for the SHARP OVER THE RANGE MICROWAVE OVEN, R-1514.

The model R-1514 are quite similar to base models R-1500 and R-1501 (Reference No. is S8123R1500X//).
It is recommended that service personnel carefully study the entire text of this manual and base model service 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.

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,

loosened or removed.

SHARP ELECTRONICS CORPORATION

SHARP PLAZA, MAHWAH,

NEW JERSEY 07430-2135

3

R-1514

PRODUCT SPECIFICATION

ITEM DESCRIPTION

Power Requirements 120 Volts / 14 Amperes / 1600 Watts

60 Hertz
Single phase, 3 wire grounded

Power Output 1000 watts (IEC TEST PROCEDURE)

Operating frequency of 2450MHz

Case Dimensions Width 29-15/16"

Height 16-1/4"
Depth 15- 9/16"

Cooking Cavity Dimensions Width 17-1/2"

Height 9-7/8"

1.5 Cubic Feet Depth 14-15/16"

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

Hood fan Approx. 300 C.F.M.

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

KEEP WARM PLUS pad,HOT WATER pad, CUSTOM HELP pad
INSTANT SENSOR pads, SENSOR COOK CENTER pads
REHEAT pads, DEFROST CENTER pad, Number selection pads
POWER LEVEL pad, TIMER / CLOCK pad
LIGHT HI / LO button, FAN HI / LO button,
STOP/CLEAR button, START/ MINUTE PLUS 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.

4

R-1514

SENSOR COOKING CONDITION

Using the Sensor Cooking function, the foods are cooked or
defrosted without figuring time, power level or quantity. When
the oven senses enough steam from the food, it relays the
information to its microprocessor which will calculate the
remaining cooking time and power level needed for best
results. When the food is cooked, water vapor is developed.
The sensor “senses” the vapor and its resistance increases
gradually. When the resistance reaches the value set accord­ing to the menu, supplementary cooking is started. The time
of supplementary cooking is determined by experiment with
each food category and inputted into the LSI.

An example of how sensor works
(Baked potatoes):

1. Potatoes at room temperature.
Vapor is emitted very slowly.

2. Heat potatoes. Moisture
and humidity is emitted
rapidly. You can smell the
aroma as it cooks.

AH SENSOR

MICROWAVE

MICROWAVE

3. Sensor detects moisture and humidity and calculates
cooking time and variable power.

Cooking Sequence.

1. Operate the oven in sensor cooking mode by referring to
operation manual.

NOTE: The oven should not be operated on Sensor Cooking

immediately after plugging in the unit. Wait two
minutes before cooking on Sensor Cooking.

2. The coil of shut-off relay (RY1) is energized, the oven
lamp, turntable motor and cooling fan motor are turned
on, but the power transformer is not turned on.

3. After about 32 seconds, the cook relay (RY2) is energized.
The power transformer is turned on, microwave energy
is produced and first stage is started.
The 32 seconds is the cooling time required to remove
any vapor from the oven cavity and sensor.

NOTE: During this first stage, do not open the door or touch

STOP/CLEAR pad.

4. When the sensor detects the vapor emitted from the
food, the display switches over to the remaining cooking
time and the timer counts down to zero.
At this time, the door may be opened to stir food, turn it
or season, etc.

5. When the timer reaches zero, an audible signal sounds.
The shut-off relay and cook relay are de-energized and
the power transformer, oven lamp, etc. are turned off.

6. Opening the door or touching the STOP/CLEAR pad, the
time of day will reappear on the display and the oven will
revert to an OFF condition.

NOTE: " " indicates components with potential above 250V.

FUSE
20A

120 V AC.
60 Hz

BLKWHT

GRN

GND

HOOD FAN
THERMAL
CUT OUT

CAVITY
THERMAL CUT-OUT

A5

B5

B7
B9

HOOD
MOTOR

High

Low

HOOD
CAPACITOR

A1 A3 B1 B3

HL

RY4

RY3

N.C.

HOOD
LAMP

MAGNETRON
TEMPERATURE FUSE

CONTROL UNIT

RY6

OVEN LAMP
RELAY

RY5

N.O.

HL

RY1

N.O.

COM.

OL

RY2

SECONDARY
INTERLOCK
RELAY

OVEN LAMP

PRIMARY
INTERLOCK
SWITCH

Figure O-1. Oven Schematic-Off Condition

SCHEMATIC

NOTE: CONDITION OF OVEN

1. DOOR CLOSED.

2. CLOCK APPEARS ON DISPLAY.

COM.

E2

TTM

DOOR
SENSING
SWITCH

E1
F1

F2

F3

FM

TURNTABLE

MOTOR

FAN

MOTOR

AH SENSOR

MONITOR

SWITCH

POWER
TRANSFORMER

HIGH VOLTAGE
CAPACITOR

0.94µF/ AC2300V

HIGH VOLTAGE
RECTIFIER

MAGNETRON

6

CAVITY
THERMAL CUT-OUT

MAGNETRON
TEMPERATURE FUSE

R-1514

SCHEMATIC

NOTE: CONDITION OF OVEN

1. DOOR CLOSED.

2. COOKING TIME PROGRAMMED.

3. VARIABLE COOKING CONTROL "HIGH".

4. "START" BUTTON PRESSED.

FUSE
20A

120 V AC.
60 Hz

BLKWHT

GRN

GND

HOOD FAN
THERMAL
CUT OUT

A5

B5

B7
B9

HOOD
MOTOR

RY4

RY6

RY3

High

N.C.

Low

HOOD
CAPACITOR

A1 A3 B1 B3

HL

HOOD
LAMP

RY5

HL

Figure O-2. Oven Schematic-Cooking Condition

CONTROL UNIT

OVEN LAMP
RELAY

RY1

N.O.

N.O.

COM.

OL

RY2

SECONDARY
INTERLOCK
RELAY

OVEN LAMP

PRIMARY
INTERLOCK
SWITCH

COM.

TTM

E2

DOOR
SENSING
SWITCH

E1
F1

F2

F3

FM

TURNTABLE

MOTOR

FAN

MOTOR

AH SENSOR

MONITOR

SWITCH

POWER
TRANSFORMER

HIGH VOLTAGE
CAPACITOR

0.94µF/ AC2300V

HIGH VOLTAGE
RECTIFIER

MAGNETRON

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 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.

7. Run the oven and check all functions.

7

R-1514

LQCK

CONTROL UNIT

AH SENSOR

SHORTED OR OPENED WIRING

CONDITION

SENSOR
COOKING
CONDITION

TEST PROCEDURE

POSSIBLE CAUSE

AND

DEFECTIVE PARTS

PROBLEM

The oven stops and "ERROR" is displayed or does not end during Sensor Cooking
condition. (Oven does not shut off after a cup of water is boiling by Sensor Cooking.)

Oven stops at 32 seconds after starting.

NOTE: For additional troubleshooting procedures, please refer back to the R-1500/1501/R1505/1506 base model

Service Manual.

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

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

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

5) 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.

COMPONENT TEST

8

TEST PROCEDURES

R-1514

PROCEDURE

LETTER

COMPONENT TEST

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.

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 STOP/CLEAR pad is depressed, first verify the flat ribbon cable
is making good contact, verify that the door sensing 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 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 STOP/CLEAR 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.

9

R-1514

TEST PROCEDURES

PROCEDURE

LETTER

N RELAY TEST

COMPONENT TEST

G10

G11G12 G 9

G 8

HOT

WATER

KEEP

WARM

PLUS

G 7 G 6 G 5 G 4 G 3 G 2 G 1

FRESH

ROLLS /

MUFFINS

REHEAT

BAKED

POTATOES

1

POWER

LEVEL

DEFROST

2

CENTER

SENSOR

45

COOK

CENTER

7

BEVERAGE

CUSTOM

HELP

POPCORN

FRESH

VEGETABLES

FROZEN

ROLLS /

MUFFINS

3

6

8

0

9

TIMER

CLOCK

LIGHT

HI / LO

FAN

HI / LO

STOP

CLEAR
START

MINUTE

PLUS

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. 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, RY3, RY4, RY5 and RY6 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. 25.0V D.C. Oven lamp / Fan motor / Turntable motor
RY2(COOK) Approx. 24.5V D.C. Power transformer
RY3 Approx. 25.0V D.C. Hood motor
RY4 Approx. 25.0V D.C. Hood motor
RY5 Approx. 25.0V D.C. Hood lamp
RY6 Approx. 25.0V 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.

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) Touch the “ DEFROST CENTER ” pad once. And then touch the number pad “ 2 ”.
(4) Touch the number pad “ 5 ”.
(5) Close the door.
(6) Touch the “ START ” button.
(7) The oven is in Defrost center cooking condition.

10

TEST PROCEDURES

QKITPB035

VRS1

a

c

d

b

S

13

P

J1

RY2

T1

R-1514

PROCEDURE

LETTER

COMPONENT TEST

(8) The oven will operate as follows.

Menu 1ST STAGE 2ND STAGE

Steaks/Chops LEVEL TIME LEVEL TIME

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

(9) 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.

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”.

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 780Ω ±
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.

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
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.

STEPS OCCURRENCE CAUSE OR CORRECTION

The rated AC voltage is not present between

1 the normal open terminal of the relay RY2 and

the normal open terminal of the relay RY1.
The rated AC voltage is present at primary Low voltage transformer or secondary circuit defective.

2

side of low voltage transformer. Check and repair.

11

Check supply voltage and oven power cord.

R-1514

TEST PROCEDURES

PROCEDURE

LETTER

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.

Q AH SENSOR TEST

Checking the initial sensor cooking condition
WARNING : The oven should be fully assembled before following procedure.

(1)The oven should be plugged in at least two minutes before sensor cooking.
(2)Room temperature should not exceed 95˚F (35˚C).
(3)The unit should not be installed in any area where heat and steam are generated. The unit should

not be installed, for example, next to a conventional surface unit. Refer to the “INSTALLATION
INSTRUCTIONS” of the operation manual.

(4)Exhaust vents are provided on the back of the unit for proper cooling and air flow in the cavity. To

permit adequate ventilation, be sure to install so as not to block these vents. There should be some
space for air circulation.

(5)Be sure the exterior of the cooking container and the interior of the oven are dry. Wipe off any moisture

with a dry cloth or paper towel.

(6)The Sensor works with food at normal storage temperature. For example, chicken pieces would be

at refrigerator temperature and canned soup at room temperature.

(7)Avoid using aerosol sprays or cleaning solvents near the oven while using Sensor settings. The

sensor will detect the vapor given of by the spray and turn off before food is properly cooked.

(8)If the sensor has not detected the vapor of the food, ERROR will appear and the oven will shut off.

Water load cooking test
WARNING : The oven should be fully assembled before following procedure.

Make sure the oven has been plugged in at least two minutes before checking sensor cook operation.
The cabinet should be installed and screws tightened.
(1)Fill approximately 200 milliliters (7.2 oz) of tap water in a 1000 milliliter measuring cup.
(2)Place the container on the center of tray in the oven cavity.
(3)Close the door.
(4)Touch the TIMER/CLOCK once, the POWER LEVEL pad twice, the START pad once, the number

pad 1 once and the number pad 4 once. Now, the oven is in the sensor cooking condition, and “ AH20
”, “ SENSOR ” and “ COOK ” will appear in the display.

(5)The oven will operate for the first 32 seconds, without generating microwave energy.
NOTE: ERROR will appear if the door is opened or STOP/CLEAR pad is touched during first stage of

(6)After approximately 32 seconds, microwave energy is produced.
If ERROR is displayed or the oven does not turn off, replace the AH sensor or check the control unit, refer

to explanation below. If the oven stops after 5 minutes and ERROR is displayed, the AH sensor is normal.
Check other parts except the AH sensor.

COMPONENT TEST

sensor cooking.

TESTING METHOD FOR AH SENSOR AND/OR CONTROL UNIT

To determine if the sensor is defective, the simplest method is to replace it with a new replacement
sensor.
(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) Remove the AH sensor.
(5) Install the new AH sensor.
(6) Reconnect all leads removed from components during testing.

12

TEST PROCEDURES

Plunger

NC
NO

COM

COM

NO

NC

R3 R4

R1

R2

1
2
3

F-1
F-2

F-3

To connector (F)
on Control Unit.

CONNECTOR

R-1514

PROCEDURE

LETTER

COMPONENT TEST

(7) Re-install the outer case (cabinet).
(8) Reconnect the power supply cord after the outer case is installed.
(9) Reconnect the oven to the power supply and check the sensor cook operation as follows:

9-1. Fill approximately 200 milliliters (7.2 oz) of tap water in a 1000 milliliter measuring cup.
9-2. Place the container on the center of tray in the oven cavity.
9-3. Close the door.
9-4. Touch the TIMER/CLOCK pad once, the POWER LEVEL pad twice, the START pad once, the

number pad 1 once and the number pad 4 once.
9-5. The control panel is in automatic Sensor operation.
9-6. The oven turns off automatically, and the time for detecting moisture will be displayed.

If new sensor dose not operate properly, the problem is with the control unit, and refer to explanation
below.

CHECKING CONTROL UNIT

(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 sensor connector that is mounted to control panel.
(5)Then connect the dummy resistor circuit (see fig.) to the sensor connector of control panel.
(6)Disconnect the leads to the primary of the power transformer.
(7)Ensure that these leads remain isolated from other components and oven chassis by using insulation

tape.

(8) After that procedure, re-connect the power supply cord.
(9) Check the sensor cook operation proceed as follows:

9-1. Touch the TIMER/CLOCK pad once, the POWER LEVEL pad twice, the START pad once and

the number pad 1 once and the number pad 4 once.
9-2. The control panel is in the sensor cooking operation.
9-3. After approximately 65 seconds, push plunger of select switch for more than 3 seconds. This

condition is same as judgement by AH sensor.
9-4. After approximately 3 seconds, the display shows “ X X . X X ” which is the time for detecting

moisture.

If the above is not the case, the control unit is probably defective.

If the above is proper, the AH sensor is probably defective.

(10) Disconnect the power supply cord, and then remove outer case.
(11) Open the door and block it open.
(12) Discharge high voltage capacitor.
(13) Disconnect the dummy resistor circuit from the sensor connector of control panel.
(14) Carry out necessary repair.
(15) Reconnect all leads removed from components during testing and repairing.
(16) Re-install the outer case (cabinet).
(17) Reconnect the power supply cord after the outer case is installed. Run the oven and check all

functions.

(18) Carry out “Water load cooking test” again and ensure that the oven works properly.

R1, R2 : 22Ω ± 1% 1/2W

R3 : 4.3kΩ ± 5% 1/4W
R4 : 1MΩ ± 5% 1/4W

Sensor Dummy Resistor Circuit

13

R-1514

TOUCH CONTROL PANEL ASSEMBLY

OUTLINE OF TOUCH CONTROL PANEL

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)

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.

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, P23,
P24, P25, P26 and P27.
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, back light circuit and absolute humidity
sensor 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.

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 25 segments and 4 common
electrodes using a Light Crystal Display.

9) Back Light Circuit

A circuit to drive the back light (Light emitting diodes
LD1-LD4).

10) Absolute Humidity Sensor Circuit

This circuit detects moisture of the cooking food to allow
its automatic cooking.

Symbol Voltage Application
VC -5.3V LSI(IC1)

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 Terminal to change cooking input according to the Model.

By using the A/D converter contained in the LSI, DC voltage in accordance with the

Model in operation is applied to set up its cooking constant.

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 AN1 IN AH sensor input..

This input is an analog input terminal from the AH sensor circuit, and connected to the

A/D converter built into the LSI.

14

Maximum
output

70% of maximum
output

H : GND

L : -5V
H : GND

L : -5V

ON

ON

OFF

OFF OFF

24 sec.

8 sec.

Pin No. Signal I/O Description

10 AN0 IN Used for initial balancing of the bridge circuit (absolute humidity sensor). This input is

an analog input terminal from the AH sensor circuit, and connected to the A/D converter
built into the LSI.

11-13 P57-P55 OUT Used for initial balancing of the bridge circuit (absolute humidity sensor).

14 CNTR0 OUT Signal to sound buzzer (2.0 kHz).

A: key touch sound.
B: Completion sound.

0.1 sec.

A

2.0 sec.

B

H : GND

L : -5V
H : GND

L : -5V

15 P53 OUT Used for initial balancing of the bridge circuit (absolute humidity sensor).
16 P52 OUT Oven lamp, fan motor and turntable motor driving signal

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

16.7 msec.

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

During cooking

17 P51 OUT Used for initial balancing of the bridge circuit (absolute humidity sensor).
18 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.

20 P46 IN Signal coming from touch key.

When either G12 line on key matrix is touched, a corresponding signal out of P20 - P27
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.

16.7 msec.

R-1514

H : GND

L : -5V

H : GND

L : -5V

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 Internal clock oscillation frequency control output.

Output to control oscillation input of XIN.

32 VSS IN Power source voltage: -5.0V.

VC voltage of power source circuit input.

33 P27 OUT Key strobe signal.

Signal applied to touch-key section. A pulse signal is input to P43-P46 terminal while one
of G8 line keys on key matrix is touched.

15

R-1514

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 Key strobe signal.

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

of G5 line keys on key matrix is touched.

37 P23 OUT Key strobe signal.

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

of G4 line keys on key matrix is touched.

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 Hood lamp driving signal.

To turn on and off relay(RY6). “L” level: During

Hood lamp ON. “H” level: During Hood lamp OFF.

ON

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.

ON

43 P15 OUT Hood motor high / low driving signal.

To turn on and off relay(RY3). “L” level: During Hood

motor high. “H” level: During Hood motor low.

ON

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.

ON

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

SEG24-SEG0

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 24 (48) ---------------- SEG24 (29) SEG 11 (61) ------------------ SEG11 (16)
SEG 23 (49) ---------------- SEG23 (28) SEG 10 (62) ------------------ SEG10 (15)
SEG 22 (50) ---------------- SEG22 (27) SEG 9 (63) ------------------ SEG 9 (14)
SEG 21 (51) ---------------- SEG21 (26) SEG 8 (64) ------------------ SEG 8 (13)
SEG 20 (52) ---------------- SEG20 (25) SEG 7 (65) ------------------ SEG 7 (12)
SEG 19 (53) ---------------- SEG19 (24) SEG 6 (66) ------------------ SEG 6 (11)
SEG 18 (54) ---------------- SEG18 (23) SEG 5 (67) ------------------ SEG 5 (10)
SEG 17 (55) ---------------- SEG17 (22) SEG 4 (68) ------------------ SEG 4 ( 9)
SEG 16 (56) ---------------- SEG16 (21) SEG 3 (69) ------------------ SEG 3 ( 8)
SEG 15 (57) ---------------- SEG15 (20) SEG 2 (70) ------------------ SEG 2 ( 7)
SEG 14 (58) ---------------- SEG14 (19) SEG 1 (71) ------------------ SEG 1 ( 6)
SEG 13 (59) ---------------- SEG13 (18) SEG 0 (72) ------------------ SEG 0 ( 5)
SEG 12 (60) ---------------- SEG12 (17)

73/74 VCC/VREF IN Connected to GND.

75 AVSS IN Connected to VC.
76 COM3 OUT Common data signal. Connected to LCD signal COM4.

OFF

OFF

OFF

OFF

H : GND

L

H : GND

L

H : GND

L

H : GND

L

16

Pin No. Signal I/O Description

ventilation opening for sensing

SW1
SW2

SW3
SW4
SW5

P57
P56
P55
P51
P53

LSI
(IC1)

AN0

AN1

620k

300k
150k

75k

37.4k

11

17
15

10

9

13

12

47k

47k

IC2

10k

0.01uF

0.015uF

0.01uF

+

VA : -15V

VA : -15V

R90

C

90

C

91

C

93

C

92

S

F-2

1.8k

F-1

F-3

C

3.57k

3.32k

VC : -5V

0.1

uF

C. Thermistor in
closed vessel
S. Thermistor in
open vessel

R98
R99

R96

R91

360k

R93

R92

R94

R95

D90

R100
R101

R102

R97

77 COM2 OUT Common data signal. Connected to LCD signal COM3.
78 COM1 OUT Common data signal. Connected to LCD signal COM2.
79 COM0 OUT Common data signal. Connected to LCD signal COM1.
80 VL3 IN Power source voltage input terminal.

Standard voltage for LCD.

ABSOLUTE HUMIDITY SENSOR CIRCUIT

R-1514

(1)Structure of Absolute Humidity Sensor

The absolute humidity sensor includes two thermistors
as shown in the illustration. One thermistor is housed in
the closed vessel filled with dry air while another in the
open vessel. Each sensor is provided with the protective
cover made of metal mesh to be protected from the
external airflow.

Thermistors

Sensing part
(Open vessel)

Sensing part
(Closed vessel)

(2)Operational Principle of Absolute Humidity Sensor

The figure below shows the basic structure of an absolute
humidity sensor. A bridge circuit is formed by two
thermistors and two resistors (R1 and R2).
The output of the bridge circuit is to be amplified by the
operational amplifier.
Each thermistor is supplied with a current to keep it
heated at about 150˚C (302˚F), the resultant heat is
dissipated in the air and if the two thermistors are placed
in different humidity conditions they show different
degrees of heat conductivity leading to a potential
difference between them causing an output voltage from
the bridge circuit, the intensity of which is increased as
the absolute humidity of the air increases. Since the
output is very minute, it is amplified by the operational
amplifier.

than the detector circuit starts to function and the LSI
observes the initial voltage available at its AN1 terminal.
With this voltage given, the switches SW1 to SW5 in the
LSI are turned on in such a way as to change the
resistance values in parallel with R98 ~ R102 of IC2.
Changing the resistance values results in that there is
the same potential at both F-3 terminal of the absolute
humidity sensor and AN0 terminal of the LSI. The voltage
of AN1 terminal will indicate about -2.5V. This initial
balancing is set up about 16 seconds after the unit is put
in the Sensor Cooking mode. As the sensor cooking
proceeds, the food is heated to generate moisture by
which the resistance balance the bridge circuit is deviated
to increase the voltage available at AN1 terminal of the
LSI.
Then the LSI observes that voltage at AN1 terminal and
compares it with its initial value, and when the comparison
rate reaches the preset value (fixed for each menu to be
cooked), the LSI causes the unit to stop sensor cooking;
thereafter, the unit goes in the next operation
automatically.
When the LSI starts to detect the initial voltage at AN1
terminal 16 seconds after the unit has been put in the
Sensor Cooking mode, if it is not possible to balance, of
the bridge circuit due to disconnection of the absolute
humidity sensor, ERROR will appear on the display and
the cooking is stopped.

1) Absolute humidity sensor circuit

R3

(3)Detector Circuit of Absolute Humidity Sensor Circuit

This detector circuit is used to detect the output voltage
of the absolute humidity circuit to allow the LSI to control
sensor cooking of the unit. When the unit is set in the
sensor cooking mode, 16 seconds clearing cycle occurs

C

S

R1

R2

Operational
amplifier

+

S : Thermistor
open vessel

C : Thermistor
closed vessel

Output
voltage

utput voltage
O

Absolute humidity vs,
output voltage characteristic

Absolute humidity (g/m )

2

17

R-1514

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.

approx. 1M ohm

2. Shapes of Electronic Components

Transistor
2SB1238

C

E

B

Transistor
KRC243M

B

C

E

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
MICROWAVE OVEN IS STILL LIVE DURING
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: DC-10MHz
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.

5) Be sure to use specified components where high precision
is required.

18

R-1514

COMPONENT REPLACEMENT AND ADJUSTMENT PROCEDURE

W ARNING AGAINST HIGH VOL T AGE:

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:

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;

Avoid possible exposure to microwave energy. Please follow the instructions below before
operating the oven.

W ARNING 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, Power transformer and Oven
cavity.

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 parts 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.

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.

THE FOLLOWING ADJUSTMENTS OR COMPONENT REPLACEMENT CAN BE PERFORMED

WITHOUT REMOVING THE OVEN FROM THE WALL

1. Hood lamps, hood lamp sockets, oven lamp, grease filter
and charcoal filter.

2. Base cover and hood lamp glass assembly.

3. Turntable motor.

4. Hood exhaust louver.

5. Control panel assembly or components.

AH SENSOR 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

19

R-1514

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 connector CN-F of AH sensor from the
control unit.

6. Remove the two (2) screws and one (1) washer holding
the AH sensor to the hood duct L.

7. Release the wire lead of AH sensor from the holes of the
hood ducts L and R.

8. Now, the AH sensor is free.

NOTE: When the AH sensor is reinstalled, the wire tie of the

AH sensor should be positioned under the hole of
the oven cavity top plate (right).

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
seconds.

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

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

6. Remove one (1) screw holding the control panel to the
oven cavity front face plate.

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-B, CN-E and CN­F 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 the two (2) screws holding the LCD holder to
the key fixing plate.

14.Remove two (2) screws holding the power unit to the key
fixing plate.

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

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

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

18.Remove the LCD holder and the LED sheet.

19.Now, the control unit is free.

Sensor ground wire

Screws

Screw

Hood duct L

AH sensor

Hole

Wire lead of AH sensor

Hole

Hood duct R

Hole

Wire tie

This illustration is under the condition which hood intake
duct R is removed

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

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

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

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

24.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

Key
fixing plate

Key unit location

OVEN LAMP 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 hood exhaust louver and release the control
panel assembly, referring to items 4 to 7 of "CONTROL
PANEL ASSEMBLY, CONTROL UNIT AND KEY UNIT
REMOVAL".

20

R-1514

5. Disconnect only the connector CN-F from the control
unit. It is not necessary to disconnect other connectors
or wire leads from the control unit.

6. Release the oven lamp socket from the magnteron duct

OVEN LAMP SOCKET REMOVAL

1. Disconnect the power supply cord.

2. Open the door and block it open.

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

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

5. Remove one (1) screw holding the control panel to the
oven cavity front face plate.

6. Release the control panel from the oven cavity front face
plate by lifting it up and tilting top edge back.

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

by turning the socket counterclockwise.

7. Remove the oven lamp from the socket by turning the
oven lamp.

8. Now the oven lamp is free.

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

9. Now, the oven lamp is free.

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

11.Now, the oven lamp socket is free.

Oven lamp
socket

Terminal

Wire lead

Terminal hole

Flat type small
screw driver

21

R-1514

HIGH VOLTAGE

RECTIFIER

POWER

TRANSFORMER

WHT

WHT

HOOD LAMP &

SOCKET

6

A

B

C

D

1

A

BLK

WHT
2

B

3

BLK

WHT

BLU

C

RED

YLW

WHT

3

4

5

6

RED

YLW

WHT

2

BLK

Power Supply

cord 120V 60Hz

GRN

1

GRN

HOOD FAN MOTOR

BLK

BLU

2

1

BLK

BLU

REDRED

MAGNETRON

TEMPERATURE

FUSE

Blue

3

BRN

ORG

Marking

RED

CAVITY

RED

BRN

WHT

TURNTABLE

GRY

OVEN LAMP &

THERMAL

CUT-OUT

MOTOR

WHT

RED

SOCKET

BLK

D

45

FAN

MOTOR

HIGH VOLTAGE

WIRE A

MAGNETRON

HIGH VOLTAGE COMPONENTS

GRN

PPL

ORG

HOOD FAN

THERMAL

CUT-OUT

GRN

GRN

to Base Plate Right

HIGH VOLTAGE

CAPACITOR

RED

or

BLU

PNK

WHT

WHT

Blue Marking

BRN

HOOD LAMP &

WHT

RED

RED

E

F

G

GRN

N.O.

COM.

DOOR SENSING SWITCH

RED

GRN

CN-E

2

1

CONTROL UNIT

CN-F

CN-C

CN-G

BLK

FUSE &

HOLDER

BLK

CN-A

RED

1

2

14

YLW

345

1

CN-C

RY1

PPL

21

CN-E

COM.

CN-B

N.O.

BRN
1

C100

2

T1

N.O.

BLU

PNK or

34567

COM.

BLK

ORG

SECONDARY INTERLOCK RELAY

RY2:

RY2:

WHT

8

9

1

CN-A

5

RY6
RY5
RY4

91

RY3

WHT

RED

CN-B

N.C.

WHT

COM.

MONITOR

SWITCH

WHT

WHT

N.O.

PRIMARY

GRY

COM.

INTERLOCK

SWITCH

SOCKET

E

Figure S-1. Pictorial Diagram

F

G

H

AH SENSOR

BLK

RED

WHT

CN-F

1

2

3

1

GRY

GRY

WHT

WHT

BLK

ORG

RED

RED

H

2

3

45

6

22

R-1514

N.O

C 1

C 7

C 3
C 5

C12

C 4

C 9
C 2

C 8

C 6

C13
C14

E 2

E 1

C11
C10

N.O

COM

COM

B 7
B 9

B 5

B 3

B 1

A 5

A 3

A 1

+

–

+

–

T1

VRS1

(J1)

R30 3.3k

R3

2.4k

10G471K

D21

1SS270A

D22

1SS270A

D23

1SS270A

D24

1SS270A

D25

1SS270A

D40
1SS270A

D20
1SS270A

D26

1SS270A

C1 0.1µ/50v

C2 1000µ/35v

+
–

C3 10µ/35v

ZD1

HZ16-1

15

D3 D1

D2

SP1
PKM22EPT

Q21
KRC243M

C21
10µ/35v

D1-D4
1N4002

C100

7µ/230v

R2 510 1/2w

Q1 2SB1238

R1 330 1w

AC(N)
OVEN LAMP

TURNTABLE
MOTOR
FAN MOTOR

OVEN LAMP
TURNTABLE
MOTOR
FAN MOTOR

CN-C
14pin
WIRE HARNESS

BUZZER
MICRO.

GND

VC

VA
INT

HOOD
THERMAL
CUT-OUT

AC(H)

MICRO.

HIGH
LOW

CN-B

CN-A

CN-E

HOOD MOTOR

HOOD MOTOR
COM.

HOOD MOTOR
H/L

HOOD MOTOR
COM.

HOOD LAMP

HOOD LAMP

Q22
DOOR

SENSING
SWITCH

DOOR
SENSING
SWITCH

VR

HOOD LAMP

HOOD LAMP

MOTOR RUN
CAPACITOR

NOTE

D4

3

a

b

c

d

8

RY1

RY2

RY3

RY4

RY5

RY6

: IF NOT SPECIFIED, 1/4W ± 5%

A

B

C

D

E

F

G

1

2

3

45

6

A

B

C

D

E

F

G

H

1

2

Figure S-2. Power Unit Circuit

3

23

45

H

6

R-1514

PLUS

START

MINUTE

TIMER

CLOCK

0

ROLLS /

FROZEN

MUFFINS

BEVERAGE

LEVEL

POWER

1

6

A

B

C

KEY UNIT

1

2

3

A

SEG24
SEG23
SEG22
SEG21
SEG20
SEG19
SEG18
SEG17
SEG16
SEG15
SEG14
SEG13
SEG12
SEG11
SEG10
SEG9
SEG8

COOK SENSOR LBS KG DEF HELP

SEG7
SEG6
SEG5
SEG4
SEG3
SEG2
SEG1
SEG0
COM4
COM3
COM2
COM1

1 29

COM3(LCD)
COM2(LCD)
COM1(LCD)
COM0(LCD)

B

LIQUID CRYSTAL DISPLAY

GND

C

4.7k

4.7k

R13

R14

R15 4.7k

64

SEG7
SEG6
SEG5
SEG4
SEG3
SEG2
SEG1
SEG0

VCC

VREF
AVSS

COM4(LCD)

COM3

COM3(LCD)

COM2

COM2(LCD)

COM1

COM1(LCD)

COM0

VL2P41

80 65

1

4.7k

SEG8

SEG8VL2

75

SEG9

SEG9

VL1

SEG10

SEG11

SEG10

AN7

SEG12

SEG11

AN6

SEG13

SEG12

SEG13

60

5

AN5

AN4

SEG14

SEG14

AN3

SEG15

SEG16

SEG15

AN2

SEG17

SEG16

SEG17
55

10

AN1

AN0

SEG18

SEG19

SEG18

P57

E

SEG20

SEG21

SEG19

SEG20

SEG21

IC1

P56

P55

CNTR0

DCA

SEG22

SEG23

SEG22
50

15

P53

SEG24

SEG23

SEG24

P52

P51

B

P11

P12

P13
45

20

P50

P47

P46

45

15k
R60

LIGHT

CF1

CSTS4.00MG03

1M
R80

HI
G
F

P14

P15

P16

P17

P20
P21
P22
P23
P24
P25

35 70

P26
P27
VSS

XOUT

XIN

30

P70
P71

RESET

P40

P45

25 40

P44

P43

INT0

24 41

4.7k
R100

15k
R61

15k
R62

15k
R63

15k
R64

15k
R65

15k
R66

15k
R67

G 7 G 6 G 5 G 4 G 3 G 2 G 1

G 8

386

CUSTOM

DEFROST

2

FRESH

ROLLS /

HOT

FAN

STOP

CLEAR

HI / LO

HI / LO

9

HELP

FRESH

POPCORN

VEGETABLES

COOK

CENTER

SENSOR

CENTER

45

7

BAKED

REHEAT

MUFFINS

POTATOES

PLUS

KEEP

WARM

WATER

G11G12 G 9

G10

(J17) (J16)

4.7k
(J15) (J14)

CN-G

4.7k

D

(J13) (J12)

D

4.7k
(J11)

(J10)

15k

/25v

R11

0.01µ
C14

Q10

2SA1037AK

1k

UDZ4.3B

E

R10

ZD10

Q11

DTA143EKA

0.1µ/50v
C12

15k
R12

0.01µ/25v
C13

CPU UNIT

F

D90 MA152WA

0.01µ/25v
C93

874

IC2

5

IC2

3.57kD
R96

C92 0.01µ/25v

R95

R94

BA4558

R68 15k
R69 15k
R70 15k
R71 15k

47k

15k

0.015µ/25v
C91

R97 47k

R93 360kF

R98 620k
R99 300k
R100 150kF
R101 75kF
R102 37.4kF

ABCDE

C40 0.01µ/25v

R40 4.7k

R41 15k

C60 330p/50v

C61 330p/50v

R72 270k

C62 330p/50v

C63 330p/50v

R73 270k

R74 270k

R75 270k

E

Figure S-3. LSI Unit Circuit

6

F

R92 1.8kF

C90 0.1µ/50v

R91 3.32kD

R90 330 1w

F-3

CN-F

R6 4.7k

R5 4.7k

Q2

G

KTA1661

R4 82

C11 0.1µ/50v

H

Q23 DTA143EAK

I

Q24 DTA143EAK

G

Q25 DTA143EAK

F

Q26 DTA143EAK

C20 0.1µ/50v

Q30 DTA143EAK

Q21 DTA143EAK

Q22 DTA143EAK

F-1 F-2

G

C10 47µ/16v

–

+

LD1 LD2 LD3 LD4

C 5

C 1

C 7

C 2

C10

C 9

C 8

C 3

C 6

C 4

C12

C11

C13

C14

H

INT

GND

1

VC

VR

H. MOTOR

H / L

2

H. MOTOR

COM.

HOOD

LAMP

VA

HOOD

LAMP

3

BUZZER

OVEN LAMP

TURNTABLE

MOTOR

FAN MOTOR

MICRO.

Q22

DOOR

SENSING

SWITCH

45

NOTE : : IF NOT SPECIFIED, 1/16W ± 5%

H

6

24

R-1514

1

A

2

3

45

6

A

CN-C

Q1

1

R3

R1

B
ZD1

C2

B

C

14

B

D21

R

0

R
M

35

RY1

27A 94V 0

C

0

M

B
F

BFB

CS
M

D40
D20

DIP

2

12

CN-E

C21

Q21

E

T1

B

R2

E

SP1

R30

C3

1

C1

VRS1

D

13

D1
D3

D

D4

J1

QKITPB035MRE0

P

D2

RY2

E

S

E

85

C100

RY5

D22

F

LOT NO.

RY3

D23

D24

D25

D26

F

RY4

RY6

5

19

G

CN-A

1

G

CN-B

H

H

Figure S-4. Printed Wiring Board

1

2

3

45

25

6

R-1514

PARTS LIST

Note: The parts marked "∆" may cause undue microwave exposure.

The parts marked "*" are used in voltage more than 250V. "δ" MARK: PARTS DELIVERY SECTION

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

ELECTRIC PARTS

1- 1 FH-DZB016MRY0 M High voltage rectifier assembly 1 AH

*

1- 2 RC-QZA234WRE0 M High voltage capacitor 1 AP

*

1- 3 QFS-TA013WRE0 M Temperature fuse 150ûC (Magnetron) 1 AE
1- 4 RMOTDA211WRE0 M Turntable motor 1 AL
1- 5 RTHM-A070WRE0 M Thermal cut-out 145ûC (Cavity) 1 AF
1- 6 RTHM-0044MRE0 M Thermal cut-out N.O. 60ûC (Hood Fan) 1 AH
1- 7 RTRN-B068MRE0 M Power transformer 1 BC

*



1- 8 RV-MZA288WRE0 M Magnetron 1 BK

*

1- 9 QFSHDB003MRE0 M Fuse holder 1 AD
1-10 QSW-MA085WRE0 M Primary interlock and door sensing switches 2 AE
1-11 FFS-BA016/KIT M Monitor switch (V-16G-2C25) with fuse (20A) assembly 1 AF
1-12 FACCDB011MRE0 M Power supply cord 1 AQ
1-13 QSOCLB006MRE0 M Oven lamp socket and hood lamp sockets 3 AE
1-14 FMOTEA441WRKZ M Hood fan motor 1 BC
1-15 RMOTEB031MRE0 M Fan motor 1 AR
1-16 RLMPTA068WRE0 M Oven lamp and hood lamps 3 AE
1-17 FDTCTA201WRK0 M AH sensor 1 AR

CABINET PARTS

2- 1 LSTY-B024MRP0 M Rear stay 1 AE
2- 2 FDIF-B014MRK0 M Hood exhaust louver 1 AX

2- 3 GDAI-B065MRP0A M Base plate R 1 AG
2- 4 FDECAB031MRK0 M Front panel L 1 AT
2- 5 GCABUB103MRP0 M Outer case cabinet 1 AZ
2- 6 TMAPCB067MRR0 M Schematic diagram 1 AB
2- 7 FANGKB009MRY0 M Hood lamp glass assembly 1 AN
2-7-1 LANGQB016MRP0 M Hood lamp glass angle 1 AG
2-7-2 PGLSPB004MRE0 M Hood lamp glass 1 AH
2- 8 PCOVPB096MRT0 M Base cover 1 AV

CONTROL PANEL PARTS

3- 1 CPWBFB064MRU0 M Control unit 1 BF
3- 1A QCNCMA017JDZZ M 3-pin connector CN-A 1 AG
3- 1B QCNCMA448DRE0 M 5-pin connector CN-B 1 AF
3- 1C QCNCMA275DRE0 J 2-pin connector CN-E 1 AB
3- 1D FW-VZB189MRE0 M Lead wire harness CN-C 1 AB
C1 RC-KZA087DRE0 J Capacitor 0.1 uF 50V 1 AB
C2 VCEAB31VW108M J Capacitor 1000 uF 35V 1 AF
C3 VCEAB31VW106M J Capacitor 10 uF 35V 1 AB
C21 VCEAB31VW106M J Capacitor 10 uF 35V 1 AB
C100 RC-QZB014MRE0 M Capacitor 7 uF 230V 1 AD
D1-4 RH-DZA006PRE0 J Diode (1N4002) 4 AD
D20-26 VHD1SS270A/-1 J Diode (1SS270A) 7 AA
D40 VHD1SS270A/-1 J Diode (1SS270A) 1 AA
Q1 VS2SB1238//-3 J Transistor (2SB1238) 1 AA
Q21 VSKRC243M//-3 J Transistor (KRC243M) 1 AB
R1 VRS-B13AA331J J Resistor 330 ohm 1W 1 AA
R2 VRD-B12HF511J J Resistor 510 ohm 1/2W 1 AB
R3 VRD-B12EF242J J Resistor 2.4k ohm 1/4W 1 AA
R30 VRD-B12EF332J J Resistor 3.3k ohm 1/4W 1 AA
RY1-2 RRLY-A113DRE0 M Relay (DU24D1-1PR(M)) 2 AG
RY3 RRLY-A123DRZZ M Relay (G5S-1 24V) 1 AG
RY4-6 RRLY-B004MRE0 M Relay (FTR-F3AA024E) 3 AG
SP1 RALM-A014DRE0 J Buzzer (PKM22EPT) 1 AG
T1 RTRNPB017MRE0 M Transformer 1 AS
VRS1 RH-VZA032DRE0 J Varistor (10G471K) 1 AE
ZD1 VHEHZ161///-1 J Zener diode (HZ16-1) 1 AA
3- 2 FPNLCB420MRK0 M Control panel sub. assembly 1 BB
3- 2-1 FUNTKB364MRE0 M Key unit 1 AU

26

R-1514

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

3- 2-2 FDECAB030MRK0 M Open button

3- 2-3
3- 2-4 MSPRTA050WRE0 M Button spring 1 AA
3- 3
3- 4 PSHEPB023MRE0 M LED sheet 1 AR
3- 5

JBTN-B138MRF0 M Select button

LHLD-B018MRF0 M LCD holder

XEPSD30P10XS0 M Screw; 3mm x 10mm 5 AB

OVEN PARTS

4- 1 LSTPPB038MRF0 M Door stopper 1 AB
4- 2 FROLPB025MRK0 M Turntable support assembly 1 AN
4- 3 NTNT-A108WREZ M Turntable tray 1 AM
4- 4 LBNDKB009MRP0 M Capacitor holder 1 AB
4- 5 PDUC-B111MRF0 M Magnetron duct 1 AF
4- 6 MLEVPB016MRF0 M Open lever 1 AD
4- 7 ************* M Oven cavity (Not replaceable part) 1 --



4- 8 PPACGB014MRF0 M Turntable motor packing 1 AA
4- 9 PHOK-B018MRF0 M Latch hook 1 AF



4-10 FANGTB005MRY0 M Unit mounting plate assembly 1 AS
4-11 NFANPB006MRE0 M Fan blade 1 AC
4-12 LBSHC0037WRE0 M Cord bushing 1 AB
4-13 MLEVFB007MRP0 M Mounting lever 2 AC
4-14 PDUC-B112MRP0 M Hood intake duct R 1 AG
4-15 PCOVPB085MRP0 M Waveguide cover 1 AH
4-16 MSPRTA046WRE0 M Latch spring 2 AB
4-17 LANGTB055MRP0 M Chassis support 2 AD
4-18 PDUC-B115MRF0 M Hood duct R 1 AQ
4-19 PDUC-B114MRF0 M Hood duct L 1 AQ
4-20 PDUC-B113MRP0 M Fan duct 1 AH
4-21 PDUC-B117MRF0 M Orifice 1 AC
4-22 PCUSGB043MRP0 M Transformer cushion 1 AC
4-23 PCUSUB045MRP0 M Cushion 1 AC
4-24 PCUSUB019MRP0 M Cushion 1 AC
4-25 PCUSUB061MRP0 M Cushion 1 AC

DOOR PARTS



5 CDORFB317MRK0 M Door assembly 1 BH



5- 1 FDORFB070MRT0 M Door panel assembly 1 AW



5- 2



5-2-1 LSTPPB023MRF0 M Latch head 1 AC



5-2-2 MSPRTA046WRE0 M Latch spring 1 AB



5-2-3 LSTPPB037MRF0 M Glass stopper 2 AC
5- 3 GCOVHB044MRF0 M Choke cover 1 AG
5- 4 PSHEPB021MRE0 M Sealer film 1 AE



5- 5 XCPSD40P08000 M Screw : 4mm x 8mm 2 AA

FCOV-B221MRK0 M Door frame assembly

1
1

1

1

AU
AD

AC

BE

MISCELLANEOUS

6- 1 CFZK-B460MRK0 M Installation material assembly 1 AH
6-1-1 LBSHC0040MRE0 M Grommet 1 AC
6-1-2 LX-BZ0195WRE0 M Toggle screw 4 AC
6-1-3 LX-MZB001MRE0 M Cord holder 1 AB
6-1-4 XBRSD50P60000 M Screw : 5mm x 60mm 2 AA
6-1-5 XOTSD40P12000 M Screw : 4mm x 12mm 3 AA
6-1-6 XTSSD50P35000 M Screw : 5mm x 35mm 6 AA
6-1-7 XWHSD50-16300 M Washer 2 AA
6- 2
6- 3
6- 4 QW-QZB025MRE0 M High voltage wire A 1
6- 5 FW-VZB187MRE0 M Main harness 1
6- 6 TCAUAB041MRR0 M DHHS service caution label
6- 7 TCAUAB045MRR0 M Monitor caution label
6- 8 TCAUAB005MRR0 M Revised DHHS/GRD C/label
6- 9 FW-VZB188MRE0 M Low voltage harness 1
6-10 PFIL-B006MRE0 M Charcoal filter 1
6-11 PFIL-B002MRE0 M Grease filter 2
6-12 FFTA-B005MRK0 M Exhaust damper assembly
6-13 PCUSUB059MRP0 M Cushion (only for horizontal venting)

TINSEB316MRK0 M Operation manual 1
TINSKB081MRR0 M Top/wall template

1

AF

AD
AT
AT

2

AA

1

AA

1

1
1

AB
AT
AE
AF
AH
AC

27

R-1514

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

6-14 QW-VZB011MRE0 M Sensor ground wire 1 AB
6-15 LANG-B002MRP0 M Scale plate 2 AD

SCREWS,NUTS AND WASHERS

7- 1 LX-CZB004MRE0 M Special screw 3 AA
7- 2

7- 3 XOTSD40P12000 M Screw : 4mm x 12mm 26 AA

XOTSF40P12000 M Screw : 4mm x 12mm

5

7- 4 XHTSD40P08RV0 M Screw : 4mm x 8mm 2 AA
7- 5 LX-CZA038WRE0 M Special screw 9 AA
7- 6 LX-CZ0052WRE0 M Special screw 2 AA
7- 7 LX-WZB003MRE0 M Sensor washer 1 AA
7- 8 XCBSD30P08000 M Screw : 3mm x 8mm 5 AA
7- 9 LX-BZA041WRE0 M Special screw 5 AA

HOW TO ORDER REPLACEMENT PARTS

To have your order filled promptly and correctly, please furnish the following information.

1. MODEL NUMBER 2. REF. NO. 3. PART NO. 4. DESCRIPTION

Order Parts from the authorized SHARP parts Distributor for your area.
Defective parts requiring return should be returned as indicated in the Service Policy.

AA

PACKING AND ACCESSORIES

TOP PAD

DOOR PROTECTOR

WRAP COVER

4-3

TURNTABLE TRAY

BOTTOM PAD

6-15

SCALE PLATE

6-11

GREASE FILTER (x 2)

6-3

TOP / WALL TEMPLATE

6-2

OPERATION MANUAL

INSTALL MATERIAL ASSEMBLY

6-1

6-12

EXHAUST DAMPER
ASSEMBLY

ACCESSORY PACK

Non-replaceable items

PACKING CASE

28

R-1514

1

OVEN AND CABINET PARTS

A

B

C

D

2

4-17

4-16

4-13

6-14

7-7

4-24

7-8

1-17

7-3

7-3

4-19

4-18

3

1-14

2-5

7-3

4-17

45

6-1-5

6-12

2-1

7-3

7-3

7-5

7-5

1-12

4-23

2-6

7-3

6-13

6

A

4-10

7-5

B

4-12

7-5

7-5

C

D

7-8

1-3

7-3

1-15

1-2

7-3

4-14

4-4

1-1

7-3

7-9

E

F

G

4-16

4-13

1-16

7-5

6-8

4-20

7-4

4-11

7-9

1-13

4-21

4-22

4-25

7-3

2-4

2-2

4-7

7-3

6-10

E

7-1

4-15

6-7

1-8

7-6

4-8

1-4

1-9

4-5

4-9

6-6

F

4-3

1-16

G

4-2

7-8

1-5

1-11

4-6

2-8

1-10

1-10

1-13

1-11

7-8

1-7

1-6

2-3

7-2

7-3

7-2

6-11

H

2-7

2-7-2

2-7-1

6-11

H

7-2

1

2

3

45

6

29

R-1514

1

CONTROL PANEL PARTS

A

2

3

45

3-5

3-3

3-4

6

A

3-1

3-2

3-5

3-5

3-2-1

B

B

DOOR PARTS

5

7-3

C

3-2-3

3-2-2

5-4

3-2-4

5-5

5-1

D

5-2-3

4-1

C

5-3

D

5-5

5-2-3

E

E

5-2-1

5-2-2

5-2

6-4

F

F

6-5

MISCELLANEOUS

G

6-1-4

6-1-5

6-1-1

6-1-2

6-1-3

H

6-1-6

6-1-7

6-1

G

6-9

H

6-15

1

2

3

45

'02 SHARP CORP. (8M2.42E) Printed in U.S.A

6

30