R209KK
SERVICE MANUAL
No. S2503R209KPK/
MICROWAVE OVEN
CONTENTS
PRECAUTIONS TO BE OBSERVED BEFORE AND
DURING SERVICING TO AVOID POSSIBLE EXPOSURE TO EXCESSIVE MICROWAVE ENERGY
BEFORE SERVICING
MODEL
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 volta ge
and current, contact with 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..)
CHAPTER 7. TROUBLESHOOTING GUIDE
CHAPTER 8. TEST PROCEDURES
CHAPTER 9. TOUCH CONTROL P ANEL ASSEMBL Y
R-209KK
CHAPTER 1. WARNING TO SERVICE PERSONNEL
CHAPTER 2. MICROWAVE MEASUREMENT PROCEDURE
CHAPTER 3. FOREWORD AND WARNING
CHAPTER 4. PRODUCT DESCRIPTION
CHAPTER 5. GENERAL INFORMATION
CHAPTER 6. OPERATION
SHARP CORPORATION
CHAPTER 10. PRECAUTIONS FOR USING LEADFREE SOLDER
CHAPTER 11. COMPONENT REPLACEMENT AND
ADJUSTMENT PROCEDURE
CHAPTER 12. CIRCUIT DIAGRAMS
Parts Guide
This document has been published to be used
for after sales service only.
The contents are subject to change without notice.
CONTENTS
PRECAUTIONS TO BE OBSERVED BEFORE AND
DURING SERVICING TO AVOID POSSIBLE EXPOSURE TO EXCESSIVE MICROWAVE ENERGY
BEFORE SERVICING
CHAPTER 1. WARNING T O SER VICE PERSONNEL
[1] Before Servicing.........................................1-1
[2] When the testing is completed, ..................1-1
[3] After repairing.............................................1-1
CHAPTER 2. MICROWAVE MEASUREMENT PROCEDURE
[1] Requirements:............................................2-1
[2] Preparation for testing:...............................2-1
[3] Leakage test:..............................................2-1
CHAPTER 3. FOREWORD AND WARNING
[1] FOREWORD ..............................................3-1
[2] WARNING ..................................................3-1
[3] DANGER ....................................................3-1
CHAPTER 4. PRODUCT DESCRIPTION
[1] SPECIFICATIONS......................................4-1
CHAPTER 5. GENERAL INFORMATION
[1] GROUNDING INSTRUCTIONS .................5-1
[2] OVEN DIAGRAM........................................5-1
CHAPTER 6. OPERATION
[1] DESCRIPTION OF OPERATING SE-
QUENCE ...................................................6-1
[2] OVEN SCHENATIC....................................6-2
[3] DESCRIPTION AND FUNCTION OF
COMPONENTS..........................................6-3
CHAPTER 7. TROUBLESHOOTING GUIDE
[1] TROUBLESHOOTING CHART .................7-1
CHAPTER 8. TEST PROCEDURES
[1] Procedure A : MAGNETRON ASSEMBLY
TEST ..........................................................8-1
[2] Procedure B : POWER TRANSFORMER
TEST ..........................................................8-1
[3] Procedure C : HIGH VOLTAGE RECTIFI-
ER TEST ...... ... ... ... .....................................8-1
[4] Procedure D : HIGH VOLTAGE CAPACI-
TOR TEST..................................................8-2
[5] Procedure E : THERMAL CUT-OUT (OV-
EN) TEST...................................................8-2
[6] Procedure E : TEMPERATURE FUSE
(OVEN) TEST.............................................8-2
[7] Procedure F : SECONDARY INTERLOCK
SWITCH TEST ...........................................8-2
[8] Procedure F : PRIMARY INTERLOCK
SYSTEM TEST...........................................8-3
[9] Procedure G : MONITOR SWITCH TEST.....8-3
[10] Procedure H : BLOWN MINITOR FUSE
TEST ..........................................................8-3
[11] Procedure I : NOISE FILTER TEST........... 8-4
[12] Procedure J : TOUCH CONTROL PANEL
ASSEMBLY TEST....................................... 8-4
[13] Procedure K : KEY UNIT TEST................. 8-5
[14] Procedure L : RELAY TEST....................... 8-6
[15] Procedure M : DEFROST TEST................ 8-6
[16] Procedure N : FOIL PATTERN ON THE
PRINTED WIRING BOARD TEST.............. 8-6
CHAPTER 9. TOUCH CONTROL PANEL ASSEMBLY
[1] OUTLINE OF TOUCH CONTROL PANEL ..... 9-1
[2] DESCRIPTION OF LSI............................... 9-1
[3] SERVICING FOR TOUCH CONTROL
PANEL ........................................................ 9-3
CHAPTER 10. PRECAUTIONS FOR USING LEADFREE SOLDER
[1] Employing lead-free solder....................... 10-1
[2] Using lead-free wire solder....................... 10-1
[3] Soldering................................................... 10-1
CHAPTER 11. COMPONENT REPLACEMENT AND
ADJUSTMENT PROCEDURE
[1] WARNINGS...............................................11-1
[2] OUTER CASE REMOVAL.........................11-2
[3] MAGNETRON REMOVAL.........................11-2
[4] HIGH VOLTAGE COMPONENTS RE-
MOVAL (HIGH VOLTAGE CAPACITOR
AND HIGH VOLTAGE RECTIFIER AS-
SEMBLY) ...................................................11-2
[5] POWER TRANSFORMER REMOVAL......11-2
[6] POSITIVE LOCK CONNECTOR (NO-
CASE TYPE) REMOVAL...........................11-3
[7] CONTROL PANEL ASSEMBLY REMOV-
AL ..............................................................11-3
[8] GRAPHIC SHEET AND MEMBRANE
SWITCH REPLACEMENT.........................11-3
[9] POWER SUPPLY CORD REPLACE-
MENT.........................................................11-4
[10] TURNTABLE MOTOR REMOVAL.............11-4
[11] COOLING FAN MOTOR REMOVAL..........11-4
[12] DOOR SENSING SWITCH/SECONDARY
INTERLOCK SWITCH AND MONITOR
SWITCH REMOVAL..................................11-5
[13] DOOR SENSING SWITCH/SECONDARY
INTERLOCK SWITCH AND MONITOR
SWITCH ADJUSTMENT ...........................11-5
[14] DOOR REPLACEMENT............................11-6
CHAPTER 12. CIRCUIT DIAGRAMS
[1] Pictorial Diagram (Figure S-1) .................. 12-1
[2] Control Panel Circuit (Figure S-2)............. 12-2
[3] Printed Wiring Board (Figure S-3) ............ 12-3
Parts Guide
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R209KK
PRECAUTIONS TO BE OBSERVED BEFORE AND DURING SERVICING TO AVOID
ServiceManual
POSSIBLE EXPOSURE TO EXCESSIVE MICROWAVE ENERGY
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.
BEFOR SERVICING
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/cm . The owner of the unit should be instructed not to use the unit
until the oven has been brought into compliance.
2
i
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CHAPTER 1. WARNING TO SERVICE PERSONNEL
Microwave ovens contain circuitry capable of producing very high voltage and current, contact with following parts may result in a severe, possibly
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.
ServiceManual
Don't Touch !
Danger High Voltage
[1] 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 shortcircuit 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) 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.
[2] 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.
[3] 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.
1 – 1
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CHAPTER 2. MICROWAVE MEASUREMENT PROCEDURE
ServiceManual
[1] Requirements:
1. Microwave leakage limit (Power density limit): The power density of microwave rad iation emitted by a microwave oven should not exceed 1mW/
2
cm
at any point 5cm or more from the external surface of the oven, measured prior to acquisition by a purchaser, and thereafter (through the use-
ful life of the oven), 5 mW/cm
2. Safety interlock switches: Primary interlock relay and door sensing switch shall prevent microwave radiation emission in excess of the requirement
as above mentioned, secondary interlock switch shall prevent microwave radiation emission in excess of 5 mW/cm
the external surface of the oven.
2
at any point 5cm or more from the external surface of the oven.
2
at any point 5cm or more from
[2] 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±5 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.
[3] 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.
2
4. Measure carefully at the point of highest lea kage and make sure that the highest leakage is no greater than 4mW/cm
interlock switch and the primary interlock relay do turn the oven OFF before any door movement.
NOTE: After servicing, record data on service invoice and microwave leakage report.
, and that the secondary
2 – 1
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CHAPTER 3. FOREWORD AND WARNING
ServiceManual
[1] FOREWORD
This Manual has been prepared to provide Sharp Electronics Corp. Service Personnel with Operation and Service Information for the SHARP
MICROWAVE OVENS, R-209KK.
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.
[2] WA RNING
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.
[3] 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.
3 – 1
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CHAPTER 4. PRODUCT DESCRIPTION
ServiceManual
[1] SPECIFICATIONS
ITEM DESCRIPTION
Power Requirements
Power Consumption 1170W / Approx. 10 Amperes
Power Output
Case Dimensions
Cooking Cavity Dimensions
(0.8 Cubic feet)
Control Complement
120 Volts
60 Hertz
Single phase, 3 wire grounded
800 W nominal of RF microwave energy (IEC Test procedure)
Operating frequency 2450 MHz
Width 18-1/8" (460mm)
Height 10-7/8" (275mm)
Depth 14-1/8" (358mm)
Width 12-1/2" (319mm)
Height 8" (204mm)
Depth 13-1/4" (336mm)
Touch Control System
Clock (1:00 - 12:59)
Timer (0 - 99 minutes 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. 30% of FULL Power
P-30 -------------------- approx. 40% 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
NOTE: Internal capacity is calculated by measuring
maximum width, depth and hight.
Actual capacity for holding food is less.
R209KK
POPCORN pad
SHORT CUTS pads
REHEAT pad
COOK pad
DEFROST pad
Number selection pads
TIMER / CLOCK pad
POWER LEVEL pad
START/MINUTE PLUS pad
STOP/CLEAR pad
Oven Cavity Light Yes
UL Listed.
Safety Standard
FCC Authorized
DHHS Rules, CFR, Title 21, Chapter 1, Subchapter J
4 – 1
R209KK
3-Pronged
Plug
Grounded
Receptacle Box
Grounding Pin
3-Pronged Receptacle
8
9
7
12
13
1
5
32
4
6
11 310
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CHAPTER 5. GENERAL INFORMATION
ServiceManual
[1] GROUNDING INSTRUCTIONS
This oven is equipped with a three prong grounding plug. It must be plugged into a w all 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:
Electrical Requirements
The electrical requirements are a 115 -120 volt 60 Hz, AC only, 15 or 20 amp. fused electrical supply. It is recommended that a separate circuit serving only this appliance be provided. When installing this appliance, observe all applicable codes and ordinances. A short power-supply cord is
provided to reduce risks of becoming entangled in or tripping over a longer cord. Where a twopronged wall-receptacle is encountered, it is the personal responsibility and obligation of the customer to contact a qualified electrician and have it replaced with a properly grounded threepronged wall receptacle or have a grounding adapter properly grounded and polarized. If the
extension cord must be used, it should be a 3-wire, 15 amp. or higher rated cord. Do not drape
over a countertop or table where it can be pulled on by children or tripped over accidentally.
CAUTION:DO NOT UNDER ANY CIRCUMSTANCES CUT OR REMOVE THE ROUND
Improper use of the grounding plug can re sult in a risk of electric shock.
GROUNDING PRONG FROM THIS PLUG.
[2] OVEN DIAGRAM
1. OVEN
1. Door open button
Push to open door.
2. Oven door with see-through window
3. Safety door latches
The oven will not operate unless the door is
securely closed.
4. Door hinges
5. Door seals and sealing surfaces
6. Turntable motor shaft
7. Removable turntable support
Carefully place the turntable support in the
center of the oven floor.
8. Removable turntable
Place the turntable securely on the turntable support. The turntable will rotate clockwise or counterclockwise. Only remove for cleaning.
9. Ventilation openings (Rear)
10.Oven light
It will light when oven is operating.
11.Waveguide cover: DO NOT REMOVE.
12.Auto-Touch control panel
13.Time display: 99 minutes, 99 seconds
5 – 1
2. TOUCH CONTROL PANEL
R209KK
NOTE: Some one-touch cooking features such as "MINUTE PLUS" are disabled after three minutes when the oven is not in use. These features are
automatically enabled when the door is opened and closed or the STOP/ CLEAR pad is pressed.
5 – 2
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CHAPTER 6. OPERATION
[1] DESCRIPTION OF OPERATING SEQUENCE
The following is a description of component functions during oven operation.
ServiceManual
1. OFF CONDITION
Closing the door activates 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.
through the noise filter (Figure O-1).
1) The display will show flashing "88:88".
2) To set any program or set the clock, touch the STOP/CLEAR pad.
The display will clear, and " : " will appear.
2. COOKING CONDITION
Program desired cooking time by touching the NUMBER pads. And
program the power level by touching the POWER LEVEL pad.
When the START pad is touched, the following operations occur:
1) 1.The contacts of the relays are closed and components connected
to the relays are turned on as follows.
(For details, refer to Figure O-2)
RELAY CONNECTED COMPONENTS
RY-1 oven lamp/turntable motor/fan motor
RY-2 power transformer
2) 120 volts A.C. is supplied to the primary winding of the power transformer and is converted to about 3.35 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 feed-box, 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, secondary interlock switch and primary interlock
relay are activated with the following results. The circuits to the
oven lamp, turntable motor, the cooling fan 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 operation of the
secondary interlock switch and primary interlock relay (RY2) and is
mechanically associated with the door so that it will function in the
following sequence.
a) When the door opens from the closed position, the secondary
interlock switch, door sensing switch and primary interlock relay
(RY2) open their contacts. Then the monitor switch contacts
close.
b) (2)When the door is closed from the open position, the monitor
switch contacts open first. Then the contacts of the secondary
interlock switch and door sensing switch close.
If the secondary interlock switch and primary 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 relay (RY2) and secondary interlock switch,
causing the monitor fuse to blow.
3. POWER LEVEL COOKING
When Variable Cooking Power is programmed, the 120 volts A.C. is
supplied to the power transformer intermittently through the contacts of
relay (RY-2) which is operated by the control unit within a 32 second
time base. Microwave power operation is as follows:
VARI-MODE ON TIME OFF TIME
P-HI (100% power) 32 sec. 0 sec.
P-90 (approx. 90% power) 30 sec. 2 sec.
P-80 (approx. 80% power) 26 sec. 6 sec.
P-70 (approx. 70% power) 24 sec. 8 sec.
P-60 (approx. 60% power) 22 sec. 10 sec.
P-50 (approx. 50% power) 18 sec. 14 sec.
P-40 (approx. 40% power) 16 sec. 16 sec.
P-30 (approx. 30% power) 12 sec. 20 sec.
P-20 (approx. 20% power) 8 sec. 24 sec.
P-10 (approx. 10% power) 6 sec. 26 sec.
P-0 (0% power) 0 sec. 32 sec.
NOTE: The ON/OFF time ratio does not correspond with the percent-
age of microwave power, because approx. 3 seconds are
needed for heating of the magnetron filament.
4. POWER OUTPUT REDUCTION
If the oven is set for more than 20 minutes at 80, 90 or 100% powe r
level, after the first 20 minutes the power level will automatically adjust
itself to 70% power to avoid overcooking.
6 – 1
[2] OVEN SCHENATIC
1. Off Condition
SCHEMATIC
NOTE: CONDITION OF OVEN
1. DOOR CLOSED
2. CLOCK APPEARS ON DISPLAY
LN
FUSE
15A
THERMAL
CUT-OUT (OVEN)
or
TEMPERATURE
FUSE (OVEN)
NOTE: " " indicates components with potentials above 250V
N.O.
COM.
POWER
TRANSFORMER
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NOISE FILTER
120V AC
60 Hz
GRN
0.22µF / AC250V
LINE CROSS CAPACITOR
NOISE SUPPRESSION COIL
Figure O-1. Oven Schematic-Off Condition
2. Cooking Condition
SCHEMATIC
NOTE: CONDITION OF OVEN
1. DOOR CLOSED.
2. COOKING TIME PROGRAMMED.
3. VARIABLE COOKING CONTROL "P-HI".
4. START PAD TOUCHED.
LN
FUSE
15A
CAPACITOR
LINE BYPASS
0.0033µF / AC250V
CAPACITOR
LINE BYPASS
0.0033µF / AC250V
A3
CONTROL UNIT
OL FM
OVEN
LAMP
SECONDARY
INTERLOCK
SWITCH
THERMAL
CUT-OUT (OVEN)
or
TEMPERATURE
FUSE (OVEN)
(RY-1)
TTM
TURNTABLE
MOTOR
NOTE: " " indicates components with potentials above 250V
A1
(RY-2)
B2 B1
FAN
MOTOR
N.O.
PRIMARY
INTERLOCK
RELAY
DOOR
SENSING
SWITCH
COM.
MONITOR
SWITCH
POWER
TRANSFORMER
CAPACITOR
0.82µF
AC2100V
or
AC1900V
RECTIFIER
MAGNETRON
CAPACITOR
LINE BYPASS
0.0033µF / AC250V
NOISE FILTER
120V AC
60 Hz
GRN
0.22µF / AC250V
LINE CROSS CAPACITOR
NOISE SUPPRESSION COIL
CAPACITOR
LINE BYPASS
0.0033µF / AC250V
Figure O-2. Oven Schematic-Cooking Condition
TTM
(RY-1)
TURNTABLE
MOTOR
A3
CONTROL UNIT
OL FM
OVEN
LAMP
SECONDARY
INTERLOCK
SWITCH
6 – 2
A1
(RY-2)
B2 B1
FAN
MOTOR
PRIMARY
INTERLOCK
RELAY
DOOR
SENSING
SWITCH
MONITOR
SWITCH
CAPACITOR
0.82µF
AC2100V
or
AC1900V
RECTIFIER
MAGNETRON
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[3] DESCRIPTION AND FUNCTION OF COMPONENTS
1. DOOR OPEN MECHANISM
The door is opened by pushing the open button on the control panel,
refer to the Figure D-1.
When the open button is pushed, the open button pushes up the
switch lever, and then the switch lever pushes up the latch head. The
latch heads are moved upward and released from latch hook. Now the
door will open.
Door
Latch
Heads
Switch Lever
Figure D-1. Door Open Mechanism.
Latch Hook
Door Sensing
Switch
Monitor Switch
Secondary
Interlock Switch
2. DOOR SENSING AND SECONDARY INTERLOCK SWITCHES
The secondary interlock switch is mounted in the lower position of the
latch hook and the door sensing switch in the primary interlock system
is mounted in the 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 power to all high voltage 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 primary interlock relay located on the control circuit
board.
3. 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 primary interlock relay (RY2) and secondary
interlock switch fail to open when the door is opened.
Functions:
1) When the door is opened, the monitor switch contacts close (to the
ON condition) due to their being normally closed. At this time the
primary interlock relay (RY2) and secondary interlock switch are in
the OFF condition (contacts open) due to its being normally open
contact switches.
2) As the door goes to a closed position, the monitor switch contacts
are first opened and then the door sensing switch and secondary
interlock switch contacts close.
3) If the door is opened, and the primary interlock relay (RY2) and the
secondary interlock switch contact fail to open, the monitor fuse
blows simultaneously with closing of the monitor switch contacts.
CAUTION:BEFORE REPLACING A BLOWN MONITOR FUSE, TEST
THE DOOR SENSING SWITCH, PRIMARY INTERLOCK
RELAY (RY2), SECONDARY INTERLOCK SWITCH AND
MONITOR SWITCH FOR PROPER OPERA TION. (REFER
TO CHAPTER "TEST PROCEDURE").
NOTE: MONITOR FUSE AND MONITOR SWITCH ARE REPLACED
AS AN ASSEMBLY.
4. TURNTABLE MOTOR
The turntable motor rotates the turntable located on the bottom of the
oven cavity, so that the food on the turntable is cooked evenly. The
turntable may turn in either direction.
5. COOLING FAN MOTOR
The cooling fan motor drives a blade which draws external cool air.
This cool air is directed through the air vents surrounding the magnetron and cools the magnetron. This air is channelled through the oven
cavity to remove steam and vapours given off from the heating foods.
It is then exhausted through the exhausting air vents at the oven cavity.
6. TEMPERATURE FUSE (OVEN)
The temperature fuse, located on the top of the oven cavity, is
designed to prevent damage to the oven by fire. If the food load is
overcooked, by either error in cook time or defect in the control unit,
the temperature fuse will open.
Under normal operation, the temperature fuse remains closed. However, when abnormally high temperatures are reached within the oven
cavity, the temperature fuse will open at 302°F(150°C), causing the
oven to shut down.
7. THERMAL CUT-OUT (OVEN)
The thermal cut-out, located on the top of the oven cavity, is designed
to prevent damage to the oven by fire. If the food load is overcooked,
by either error in cook time or defect in the control unit, the thermal cutout will open.
Under normal operation, the oven thermal cut-out remains closed.
However, when abnormally high temperatures are reached within the
oven cavity, the oven thermal cut-out will open at 293°F (145°C), causing the oven to shut down.
8. MONITOR FUSE
1) The monitor fuse blows when the contacts (COM-NO) of the primary interlock relay (RY2) and the secondary interlock switch
remain closed with the oven door open and when the monitor
switch closes.
2) If the wire harness or electrical components are short-circuited, this
monitor fuse blows to prevent an electric shock or fire hazard.
9. NOISE FILER
The noise filter prevents the radio frequency interference that might
flow back in the power circuit.
6 – 3
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CHAPTER 7. TROUBLESHOOTING GUIDE
ServiceManual
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, primary interlock relay (RY2), door sensing switch and
secondary interlock switch before replacing the monitor fuse. If monitor fuse is replaced, t he monitor switch must also be replaced. Use part FFSBA026WRKZ 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.
[1] TROUBLESHOOTING CHART
TTEST PROCEDURE
POSSIBLE CASE
AND DEFECTIVE PARTS
CONDITION PROBLEM
OFF
CONDITION
COOKING
CONDITION
Home fuse blows when power cord is plugged
into wall receptacle.
Monitor fuse blows when power cord is plugged
into wall receptacle.
Any letters or indicators do not appear in display
when power cord is first plugged into wall outlet.
Display does not operate properly when
STOP/CLEAR key is touched. (Buzzer should
sound and time of day should appear in display.)
Monitor fuse blows when the door is opened.
Fan motor does not operate. (All other electric
components function.)
Oven lamp does not light at all. (All other electric
components function.)
Turntable motor does not operate. (All other
electric components function.)
Oven does not go into cook cycle when START
pad is touched
Oven seems to be operating but little or no heat
is produced in oven load. (Food incompletely
cooked or not cooked at all at end of cook cycle.)
Oven goes into a cook cycle but extremely
uneven heating is produced in oven load (food).
Oven does not cook properly when programmed
for Cooking 50% mode. (Operates properly on
Cooking Power 100% mode.)
Oven lamp, turntable motor and fan motor do not
operate.
Oven goes into DEFROST but food is not
defrosted well.
RE CK A B C D E F F G H RE RE CK J/L CK CK CK K N M I
SHORT IN POWER CORD
SHORT OR OPENED WIRING
MAGNETRON
POWER TRANSFORMER
H.V. RECTIFIER ASSEMBLY
HIGH VOLTAGE CAPACITOR
TEMPERATURE FUSE (OVEN)
or THERMAL CUT-OUT (OVEN)
PRIMARY INTERLOCK SYSTEM
SECONDARY INTERLOCK SWIT
MONITOR SWITCH
MONITOR FUSE
OVEN LAMP
COOLING FAN MOTOR
TURNTABLE MOTOR
CONTROL UNIT or RELAY
WRONG OPERATION
LOW VOLTAGE
DIRTY OVEN CAVITY
KEY UNIT (MEMBRAINE SWITCH
FOIL PATTERN ON PWB.
DEFROST
NOISE FILTER
7 – 1
R209KK
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CHAPTER 8. TEST PROCEDURES
ServiceManual
[1] Procedure 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.
1. 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 indi-
cate 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 P-HI (100% Power) 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 20 to 38°F(11.1 to 21.1°C) 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 outp ut (high r ise in water tempe rature) 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.
[2] Procedure 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 th e transfor mer with an o hmmeter. 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 202 ohms (RTRN-A727WRZZ) or 190 ohms (RTRN-A728WRZZ); 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.
(HIGH VOLTAGES ARE PRESENT AT THE HIGH VOLTAGE TERMINAL, SO DO NOT ATTEMPT TO MEASURE THE FILAMENT AND HIGH
VOLTAGE.)
[3] Procedure 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.
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R209KK
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.
[4] Procedure 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.
[5] Procedure E : THERMAL CUT-OUT (OVEN) 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 293°F(145°C).
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.
8. Run the oven and check all functions.
CAUTION:IF THE THERMAL CUT-OUT INDICATES AN OPEN CIRCUIT AT ROOM TEMPERATURE, REPLACE IT
[6] Procedure E : TEMPERATURE FUSE (OVEN) 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 temperature fuse terminals should indicate a closed circuit unless the temperature of the temperature fuse reaches
approximately 302°F (150°C).
An open temperature fuse indicates overheating of the oven, exchange the temperature fuse 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.
8. Run the oven and check all functions.
CAUTION:IF THE TEMPERATURE FUSE INDICATES AN OPEN CIRCUIT AT ROOM TEMPERATURE, REPLACE IT
[7] Procedure F : SECONDARY 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.
8 – 2
R209KK
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.
[8] Procedure F : PRIMARY INTERLOCK SYSTEM TEST
1. 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.
2. PRIMARY 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 Prima ry 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.
[9] Procedure G : MONITOR 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. Before performing this test, make sure that the secondar y in terlock switch and the primar y interlock relay a re operating prop erly, according to the
above Switch Test Procedure. Disconnect the wire lead from the monit or switch (COM) terminal. Che ck the monit or switch oper ation by using the
ohmmeter as follows. When the door is open, the meter should indicate a closed circuit. When the monitor sw itch 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.
SCREW
DR IV E R
BLK
GRY
MON IT O R
SWITCH
OH MME T E R
[10] Procedure H : BLOWN MINITOR FUSE TEST
1. Disconnect the power supply cord, and then remove outer case.
8 – 3
R209KK
FUSE 15A
NOISE FILTER
NOISE SUPPRESSION COIL
LINE CROSS CAPACITOR
0.22µF / AC 250V
LINE BYPASS
CAPACITOR
0.0033µF / AC 250V
LINE BYPASS
CAPACITOR
0.0033µF / AC 250V
L
REDWHITE
N
2. Open the door and block it open.
3. Discharge high voltage capacitor.
4. If the monitor fuse is blown when the door is opened, check the primary interlock relay, secondary interlock switch and monitor switch according to
the "TEST PROCEDURE" for those switches before replacing the blown monitor fuse.
CAUTION:BEFORE REPLACING A BLOWN MONITOR FUSE, TEST THE PRIMARY INTERLOCK RELAY, SECONDARY INTERLOCK SWITCH,
DOOR SENSING SWITCH AND MONITOR SWITCH FOR PROPER OPERATION.
If the monitor fuse is blown by improper switch operation, the monitor fuse and monitor switch must be replaced with "m onitor fuse and monitor
switch assembly" part number FFS-BA026WRKZ, even if the monitor switch operates normally. The monitor fuse and monitor switch assembly is
comprised of a 15 ampere fuse and 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.
[11] Procedure I : 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 lead wires from the terminal the noise filter. Using an ohmmeter, check between
the terminals as described in the following table. If incorrect reading are obtained, replace the
noise filter.
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.
Between N and L Open circuit.
Between terminal N and WHITE Short circuit.
Between terminal L and RED Short circuit.
[12] Procedure J : 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 troubleshooting by unit replacement
is described according to the symptoms indicated.
Before testing,
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.
1. Key Unit
NOTE:
1) Check key unit ribbon connection before replacement.
2) )Re-install the outer case (cabinet).
3) Reconnect the power supply cord after the outer case is installed.
4) 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.
MEASURING POINT INDICATION OF OHMMETER
8 – 4
R209KK
2) Open the door and block it open.
3) Discharge high voltage capacitor.
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 K) to determine if
control unit is faulty.
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) 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.
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 and then remove outer case.
2) Open the door and block it open.
3) Discharge high voltage capacitor.
4) Reconnect all leads removed from components during testing.
5) Re-install the outer case (cabinet).
6) Reconnect the power supply cord after the outer case is installed.
7) Run the oven and check all functions.
[13] Procedure K : KEY UNIT 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. Using an ohmmeter and referring to the key unit matrix indicated on the control unit circuit, check the circuit between the pins of the key unit that
correspond to the STOP/CLEAR pad. When the pad is pressed, the ohmmeter should indicate short circuit. When the pad is released, the ohmmeter should indicate open circuit. If incorrect readings are obtained, the key unit is faulty and must be replaced. About the other pads, the above
method may be used.
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.
G4 G5 G6G1
Pin NO. G1 Pin NO. G10
G10
G7
G8
G9
Key unit (Membrane Switch) front view
Key unit ribbon
cable
WARM
2
4
5
1
0
8
7
REHEAT
POPCORN
MELT
DEFROST
POWER
LEVEL
STOP
CLEAR
START
MINUTE PLUS
8 – 5
COOK
SOFTEN
G2 G3
6
3
TIMER
CLOCK
9
R209KK
[14] Procedure L : RELAY 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. 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.
7. Remove the outer case and check voltage between Pin No. 1 of the 3 pin connector (A) and the normal open terminal of the relay RY2 on the control unit with an A.C. voltmeter.
The meter should indicate 120 volts, if not check oven circuit.
RY1 and RY2 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 indicatedDefective 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. 12.5V D.C. Oven lamp / Turntable motor / Cooling fan motor
RY2 Approx. 11.2V D.C. Power transformer
8. If any abnormal condition is defected, replace the control unit.
9. Disconnect the power supply cord and then remove outer case.
10.Open the door and block it open.
11.Discharge high voltage capacitor.
12.Reconnect all leads removed from components during testing.
13.Re-install the outer case (cabinet).
14.Reconnect the power supply cord after the outer case is installed.
15.Run the oven and check all functions.
[15] Procedure M : DEFROST TEST
1. Place one cup of water in the center of the turntable tray in the oven cavity.
2. Close the door, touch the “DEFROST “ pad once.
3. The oven is in Defrost cooking condition.
4. The oven will operate as follows.
MENU 1ST STAGE 2ND STAGE 3RD STAGE 4TH STAGE
Steaks/
Chops
0.5lb 70% 1min 2sec. 0% 50sec. 50% 37sec. 30% 40sec.
5. If improper operation is indicated, the control unit is probably defective and should be checked.
LEVEL TIME LEVEL TIME LEVEL TIME LEVEL TIME
[16] Procedure N : 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 and then remove outer case.
2) Open the door and block it open.
3) Discharge high voltage capacitor.
4) 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”.
8 – 6
R209KK
a
d
b
c
5) 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 915Ω±10%). If any abnormal condition is detected,
replace the control unit.
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.
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.
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.
7) Follow the troubleshooting guide given below for repair.
STEPS OCCURRENCE CAUSE OR CORRECTION
The rated AC voltage is not present between Pin No. 1 of the 3-pin con-
1
nector (A) and the normal open terminal of the relay RY2
The rated AC voltage is present at primary side of low voltage trans-
2
former.
Check supply voltage and oven power cord.
Low voltage transformer or secondary circuit defective.
Check and replace control unit.
8) Disconnect the power supply cord and then remove outer case.
9) Open the door and block it open.
10)Discharge high voltage capacitor.
11)Reconnect all leads removed from components during testing.
12)Re-install the outer case (cabinet).
13)Reconnect the power supply cord after the outer case is installed.
14)Run the oven and check all functions.
8 – 7
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CHAPTER 9. TOUCH CONTROL PANEL ASSEMBLY
ServiceManual
R209KK
[1] 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 principal functions of these units and their related signals are
explained below.
1. Key Unit
The key unit is composed of a matrix, signals generated in the LSI are
sent to the key unit through P24, P25, P26, P31, P32 and P33. When
a key pad is touched, a signal is completed through the key unit and
passed back to the LSI through P50, P51, P52 and P53 to perform the
function that was requested.
2. Control Unit
Control unit consists of LSI, reset circuit, indicator circuit, power
source circuit, relay circuit, buzzer circuit and synchronizing signal circuit.
1) Reset Circuit
This circuit generates a signal which resets the LSI to the initial
state when power is supplied.
2) Indicator Circuit
This circuit consists of 4-digits, 12-segments and 3-common electrodes using a Liquid Crystal Display.
3) Power Source Circuit
This circuit generates voltage necessary in 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
VSS -5V LSI(IC1)
4) Relay Circuit
To drive the magnetron, fan motor, turntable motor and light the
oven lamp.
5) Buzzer Circuit
The buzzer is responsive to signals from the LSI to emit audible
sounds (key touch sound and completion sound).
6) Synchronizing Signal Circuit
The power source synchronizing signal is available in order to com-
pose a basic standard time in the clock circuit. It accompanies a
very small error because it works on commercial frequency.
7) Door Sensing Switch
A switch to “tell” the LSI if the door is open or closed.
[2] DESCRIPTION OF LSI
The I/O signal of the LSI are detailed in the following table.
Pin No. Signal I/O Description
1P50INSignal coming from touch key.
When either G7 line on key matrix is touched, a corresponding signal out of P24 - P26 and P31 - P33 will be
input into P50. When no key is touched, the signal is held at "H" level.
2P51INSignal similar to P50.
When either G8 line on key matrix is touched, a corresponding signal will be input into P51.
3P52INSignal similar to P50.
When either G9 line on key matrix is touched, a corresponding signal will be input into P52.
4P53INSignal similar to P50.
When either G10 line on key matrix is touched, a corresponding signal will be input into P53.
5 IC IN Connected to VSS.
6 XT1 IN Connected to VSS.
7 XT2 Terminal not used.
8VDDINPower source voltage input terminal.
The power source voltage to drive the LSI. Connected to GND.
9 VSS IN Power source voltage input terminal.
The power source voltage to drive the LSI.
10 X1 IN Internal clock oscillation frequency input setting.
The internal clock frequency is set by inserting the resistor-capacitor oscillation circuit with respect to X2 termi-
nal.
11 X2 OUT Internal clock oscillation frequency control output.
Output to control oscillation input of X1.
12 RESET IN Auto clear terminal.
Signal is input to reset the LSI to the initial state when power is applied.
13-15 P00-P02 OUT Terminal not used.
16 P03 OUT Terminal not used.
17 CAPH - Terminal not used.
18 CAPL - Terminal not used.
19-21 VLC0-VLC2 IN Power source voltage input terminal.
Standard voltage for LCD.
22 COM0 OUT Common data signal.
Connected to LCD signal COM0.
23 COM1 OUT Common data signal.
Connected to LCD signal COM1.
9 – 1
R209KK
Maximum
output
70% of maximum
output
H : GND
L : -5V
H : GND
L : -5V
ON
ON
OFF
OFF OFF
24 sec.
8 sec.
16.7 msec.
H:GND
L:-5V
Pin No. Signal I/O Description
24 COM2 OUT
25 COM3 OUT Terminal not used.
26-37 SEG0-SEG11 OUT Segment data signal.
38-40 SEG12-SEG14 OUT Terminal not used.
41 P70 OUT Oven lamp, fan motor and turntable motor driving signal
Common data signal.
Connected to LCD signal COM2.
Connected to LCD.The relation between signals are as follows:
LSI signal (Pin No.) LCD (segment) LSI signal (Pin No.) LCD (segment)
SEG 0 (26) ----------------- SEG 1 SEG 0 (32) ----------------- SEG 7
SEG 0 (27) ----------------- SEG 2 SEG 0 (33) ----------------- SEG 8
SEG 0 (28) ----------------- SEG 3 SEG 0 (34) ----------------- SEG 9
SEG 0 (29) ----------------- SEG 4 SEG 0 (35) ----------------- SEG 10
SEG 0 (30) ----------------- SEG 5 SEG 0 (36) ----------------- SEG 11
SEG 0 (31) ----------------- SEG 6 SEG 0 (37) ----------------- SEG 12
To turn on and off shut off relay (RY1). The square wave-
form voltage is delivered to the RY1 driving circuit and
RY2 control circuit.
16.7 msec.
H:GND
During cooking
42 P71 OUT Terminal not used.
43 P72 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.
44 AVDD IN A/D converter power source voltage.
The power source voltage to drive the A/D converter in the LSI. Connected to GND.
45-47 AIN5-AIN3 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.
48-50 AIN2-AIN0 IN This is the terminal to detect the voltage of the signal coming from the touch key.
51 AVSS IN A/D converter power source voltage.
The power source voltage to drive the A/D converter in the LSI.
52 P11 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)
53 P10 OUT Terminal not used.
54 P33 OUT Key strobe signal.
Signal applied to touch-key section. A pulse signal is input to P50, P51, P52 and P53 terminal while one of G1
line keys on key matrix is touched.
55 P32 OUT Key strobe signal.
Signal applied to touch-key section. A pulse signal is input to P50, P51, P52 and P53 terminal while one of G2
line keys on key matrix is touched.
56 P31 OUT Key strobe signal.
Signal applied to touch-key section. A pulse signal is input to P50, P51, P52 and P53 terminal while one of G3
line keys on key matrix is touched.
57 INTP0 IN Signal synchronized with commercial power source frequency.
This is the basic timing for time processing of LSI.
L:-5V
58 P26 OUT Key strobe signal.
59 P25 OUT Key strobe signal.
60 P24 OUT Key strobe signal.
Signal applied to touch-key section. A pulse signal is input to P50, P51, P52 and P53 terminal while one of G4
line keys on key matrix is touched.
Signal applied to touch-key section. A pulse signal is input to P50, P51, P52 and P53 terminal while one of G5
line keys on key matrix is touched.
Signal applied to touch-key section. A pulse signal is input to P50, P51, P52 and P53 terminal while one of G6
line keys on key matrix is touched.
9 – 2
Pin No. Signal I/O Description
61 P23 OUT Terminal not used.
62 P22 OUT Terminal not used.
63 BZO90 OUT Signal to sound buzzer (2.0 kHz).
A: key touch sound.
B: Completion sound.
64 P20 OUT Terminal not used.
[3] SERVICING FOR TOUCH CONTROL PANEL
R209KK
0.1 sec.
A
2.0 sec.
B
H : GND
L:-5V
H : GND
L:-5V
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 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. 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 MICRO-
WAVE 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 so long enough that
they may be separated from each other. For those models,
therefore, 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 brings about an operational state that is equivalent to the oven door being closed. As for the sensorrelated controls of the touch control panel, checking them is
possible if the 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 brings about 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).
3. 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 termi-
nal.)
2) Oscilloscope: Single beam, frequency range: DC - 10MHz type or
more advanced model.
3) Others: Hand tools
4. 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 connector 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.
9 – 3
R209KK
R209KK
CHAPTER 10. PRECAUTIONS FOR USING LEAD-FREE SOLDER
ServiceManual
[1] Employing lead-free solder
The "Main PWB" of this model employs lead-free solder. This is indicated by the "LF" symbol printed on the PWB and in the service manual. The suffix letter indicates the alloy type of the solder.
Example:
Indicates lead-free solder of tin, silver and copper
[2] Using lead-free wire solder
When repairing a PWB with the "LF" symbol, only lead-free solder should be used. (Using normal tin/lead alloy solder may result in cold soldered
joints and damage to printed patterns.)
As the melting point of lead-free solder is approximately 40°C higher than tin/lead alloy solder, it is recommend that a dedicated bit is used, and that
the iron temperature is adjusted accordingly.
[3] Soldering
As the melting point of lead-free solder (Sn-Ag-Cu) is higher and has poorer wettability, (flow), to prevent damage to the land of the PWB, extreme
care should be taken not to leave the bit in contact with the PWB for an extended period of time. Remove the bit as soon as a good flow is achieved.
The high content of tin in lead free solder will cause premature corrosion of the bit. To reduce wear on the bit, reduce the temperature or turn off the
iron when it is not required.
Leaving different types of solder on the bit will cause contamination of the different alloys, which will alter their characteristics, making good soldering
more difficult. It will be necessary to clean and replace bits more often when using lead-free solder. To reduce bit wear, care should be taken to clean
the bit thoroughly after each use.
10 – 1
R209KK
R209KK
CHAPTER 11. COMPONENT REPLACEMENT AND ADJUSTMENT PROCE-
ServiceManual
DURE
[1] WA RNINGS
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:
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.
Avoid possible exposure to microwave energy. Please follow the instructions below before
operating the oven.
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. DonÕt let the wire leads touch to the following 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.
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 and
other metallic plate.
4) Movable parts (to prevent a fault)
Fan blade, Fan motor, Turntable motor, Switch, Switch
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.
Please refer to “OVEN PARTS, CABINET PARTS, CONTROL PANEL PARTS, DOOR PARTS”, when carrying out any of the following removal procedures:
11 – 1
R209KK
[2] OUTER CASE REMOVAL
To remove the outer case, procedure as follows.
1. Disconnect the power supply cord.
2. Open the oven door and block it open.
3. Remove the two (2) screws from the lower portion of the rear cabinet using a T20H Torx type or GTXH20-100 screw driver.
4. Remove the remaining three (3) screws from the upper portion of
the rear and two (2) screws along the right side of outer case.
5. Slide the entire outer case back out about 1 inch (3 cm) to free it
from retaining clips on the cavity face plate.
6. Lift entire outer case from the unit.
CAUTION:DISCONNECT OVEN FROM POWER SUPPLY BEFORE
REMOVING OUTER CASE.
DISCHARGE THE HIGH VOLTAGE CAPACITOR
BEFORE TOUCHING ANY OVEN COMPONENTS OR
WIRING.
NOTE: When replacing the outer case, the 2 special Torx screws
must be reinstalled in the same locations.
[3] MAGNETRON REMOVAL
1. Disconnect the power supply cord and remove outer case.
2. Open the oven door and block it open.
3. Discharge high voltage capacitor.
4. Remove the two (2) screws holding the air duct to the oven cavity.
5. Release the air duct from the oven cavity.
6. Disconnect the wire leads from magnetron.
Special screw
Screw Driver
(Type: TORX T20 H or
GTXH20-100)
7. Remove the four (4) screws holding the magnetron to the
waveguide.
8. Remove the magnetron from waveguide.
9. Now, the magnetron is free.
CAUTION: WHEN REPLACING THE MAGNETRON, BE SURE THE
R.F. GASKET IS IN PLACE AND THE MAGNETRON
MOUNTING SCREWS ARE TIGHTENED SECURELY.
[4] HIGH VOLTAGE COMPONENTS REMOVAL (HIGH VOLTAGE CAPACITOR AND HIGH VOLTAGE RECTIFIER ASSEMBLY)
To remove the components, proceed as follows.
1. Disconnect the power supply cord and remove outer case.
2. Open the oven door and block it open.
3. Discharge high voltage capacitor.
4. Disconnect the high voltage wire (white) o f the power transformer
from high voltage capacitor.
5. Disconnect the H.V. wire of the H.V. rectifier assembly from the
magnetron.
6. Disconnect the filament lead (red) of the power transformer from
the H.V. capacitor.
7. Remove one (1) screw holding capacitor holder to bottom plate.
8. Remove one (1) screw holding ground side terminal of high voltage
rectifier assembly, and remove capacitor holder.
9. Disconnect the terminal of high voltage rectifier assembly from high
voltage capacitor.
10.Now the H.V. rectifier assembly and H.V. capacitor should be free.
CAUTION:WHEN REPLACING HIGH VOLTAGE RECTIFIER
ASSEMBLY, ENSURE THAT THE CATHODE (GROUND)
CONNECTION IS SECURELY FIXED TO THE CAPACITOR HOLDER WITH A GROUNDING SCREW.
CAUTION: DO NOT REPLACE ONLY HIGH VOLTAGE RECTIFIER.
WHEN REPLACING IT, REPLACE HIGH VOLTAGE RECTIFIER ASSEMBLY.
[5] POWER TRANSFORMER REMOVAL
1. REMOVAL
1. Disconnect the power supply cord and remove outer case.
2. Open the oven door and block it open.
3. Discharge high voltage capacitor.
4. Disconnect the wire leads (main wire harness) from power transformer.
5. Disconnect the filament lead (red) of the power transformer from
magnetron.
6. Disconnect the leads of the power transformer from hig h voltage
capacitor.
7. Remove the four (4) screws holding the transformer to bottom plate
from the upper side and bottom side.
8. Remove the transformer.
9. Now the power transformer is free.
2. REINSTALL
1. Rest transformer on the bottom plate with its primary terminals
toward the oven face plate.
2. Secure transformer with four (4) screws to the bottom plat e ( two
screws from upper side and two screws from bottom side).
3. Re-connect wire leads (primary and high voltage) and filament
leads to the power transformer, magnetron and high voltage capacitor, referring to "Pictorial Diagram".
4. Re-install outer case and check that the oven is operating properly.
11 – 2
[6] POSITIVE LOCK CONNECTOR (NO-CASE TYPE) REMOVAL
Terminal
Push
Pull down
1
2
Lever
Positive lock¨
connector
1. Disconnect the power supply cord, and remove outer
case.
2. Open the door and block it open.
3. Discharge high voltage capacitor.
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 FACES YOU
Figure C-1. Positive lock connector
[7] CONTROL PANEL ASSEMBLY REMOVAL
1. Disconnect the power supply cord and remove outer case.
2. Open the door and block it open.
3. Discharge high voltage capacitor.
4. Disconnect the leads from the control unit.
5. Remove the one (1) screw holding the control panel to the front
plate of the oven cavity.
6. Now, the control panel assembly is free.
[8] GRAPHIC SHEET AND MEMBRANE SWITCH REPLACEMENT
R209KK
1. REMOVAL
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 control panel assembly, referring to chapter of CONTROL PANEL ASSEMBLY REMOVAL.
5. Remove the two (2) screws holding the contr ol unit to the control
panel frame. And remove the control unit.
6. Remove the rubber connector from the long slit on the control panel
frame.
7. Tear away the graphic sheet from the control panel frame.
8. Tear away the membrane switch from the control panel frame.
2. REINSTALL
1. Remove remaining adhesive on the control panel frame surfaces
with a soft cloth soaked in alcohol.
2. Tear the backing paper from the new membrane switch.
3. Insert the ribbon cable of the membrane switch into the slit of the
control panel frame.
4. Adjust the upper edge and right edge of the membrane switch to
the small depression on the surface of the control panel frame.
5. Attach the membrane switch to the control panel frame by rubbing
with a soft cloth not to scratch.
6. Tear the backing paper from the new graphic sheet.
7. Adjust the upper edge and left edge of the graphic sheet to the
large depression on the surface of the control panel frame.
8. Attach the graphic sheet to the control panel frame by rubbing with
a soft cloth not to scratch.
9. Tear the small backing paper from the ribbon cable of the membrane switch.
10.Attach the ribbon cable to the control panel frame rear side.
11.Place the edge of the membrane switch’s ribbon cable on the lower
portion of the liquid crystal display.
12.Insert the rubber connector into the long slit on the control panel
frame.
13.Reinstall the control unit to the control panel frame with the two (2)
screws.
NOTE: Do not contact the contact surface of the ribbon cable
(edge) and the rubber connector directly with your fingers. This is to avoid oxidized. If display digits are missing or scrambled, remove control unit and clean contact
surface with alcohol. After cleaning, do not attach the rubber connector until alcohol dries up. Do not u se alcohol
or solution to clean the rubber connector. Make sure that
there is no trash or foreign substance on contact surface
of the rubber connector.
Control panel frame
Large
depression
Small
backing
paper
Ribbon
cable
Graphic
sheet
Membrane
switch
Slit
Small
depression
Liquid crystal
display
Ribbon cable
of membrane
switch
Long slit
Figure C-2. Graphic Sheet and Membrane Switch Replacement
11 – 3
Control panel frame
(Rear side)
Contact surface
Rubber connector
R209KK
[9] POWER SUPPLY CORD REPLACEMENT
1. REMOVAL
1. Disconnect the power supply cord, and remove outer case.
2. Open the door and block it open.
3. Discharge high voltage capacitor.
4. Remove the single (1) screw holding the green wire to the oven
cavity back plate.
5. Disconnect the leads of the power supply cord from the noise filter,
referring to the Figure C-3(a).
6. Release the moulding cord stopper of the power supply cord from
the square hole of the oven cavity back plate, referring to the Figure C-3(b).
Screw
Green Wire
Gray Wire
GrayWire
Connect the wire lead which has the black case to
the terminal "L" of the noise filter.
Figure C-3(a) Power Supply Cord Replacement Figure C-3(b) Power Supply Cord Replacement
Power Supply
Cord
Oven Cavity
Back Plate
L
N
Noise Filter
RED
WHT
7. Now, the power supply cord is free.
2. REINSTALL
1. Insert the moulding cord stopper of power supply cord into the
square hole of the rear cabinet, referring to the Figure C-3 (b).
2. Install the earth wire lead of power supply cord to the oven cavity
back plate with one (1) screw and tight the screw.
3. Connect the gray wire leads of power supply cord to the noise filter
correctly, referring to the Pictorial Diagram.
4. Re-install outer case and check that the oven is operating properly.
Power Supply
Cord
Moulding
Cord Stopper
Oven Cavity
Back Plate
Square
Hole
[10] TURNTABLE MOTOR REMOVAL
1. REMOVAL
1. Disconnect the power supply cord.
2. Remove turntable and turntable support from oven cavity.
3. Lay the oven on it's backside. Remove the turntable motor cover by
snipping off the material in four corners.
4. Where the corners have been snipped off bend corner areas flat.
No sharp edges must be evident after removal of the turntable
motor cover.
5. Disconnect wire leads from turntable motor.
(See "Positive lock connector removal")
6. Remove one (1) screw holding turntable motor to oven cavity.
7. Remove the TTM packing from the turntable motor.
8. Now, the turntable motor is free.
2. REINSTALL
1. Re-install the TTM packing.
[11] COOLING FAN MOTOR REMOVAL
1. REMOVAL
1. Disconnect the power supply cord and remove outer case.
2. Open the door and block it open.
3. Discharge high voltage capacitor.
4. Disconnect the wire leads from the fan motor.
5. Remove the two (2) screws holding the fan motor to the oven cavity
back plate.
6. Remove the fan blade from the fan motor shaft according to the following procedure.
2. Re-install the turntable motor with theTTM packing with the single
(1) screw to the oven cavity bottom plate.
3. Re-connect the wire leads to the turntable motor.
4. Insert the tab of the turntable motor cover into the hole of the bottom plate.
5. Re-install the turntable motor cover to the bottom plate with one (1)
screw.
TTM packing
Turntable motor
Figure C-4. TTM packing Installation
7. 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 easy to be 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 injured.
Do not disfigure the bracket by touching with the pliers.
11 – 4
8. Remove the fan blade assembly from the shaft of the fan motor by
pulling and rotating the fan blade with your hand.
9. Now, the fan blade will be free.
CAUTION:Do not re-use the removed fan blade because the hole
(for shaft) may be larger than normal.
10.Now, the fan motor is free.
2. 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.
R209KK
3. Apply the screw lock tight into the hole (for shaft) of the fan blade.
4. 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.
CAUTION:Do not hit the fan blade strongly when installed
because the bracket may be transformed.
Make sure that the fan blade rotates smooth after
installed.
Make sure that the axis of the shaft is not slanted.
5. Install the fan motor assembly to the oven cavity back plate with
two (2) screws.
6. Connect the wire leads to the magnetron and fan motor, referring to
the pictorial diagram.
Coil
Stator
Gap
Bracket
Rotor
Groove joint pliers
Rear View
Shaft
Axis
Stator
Rotor
Side View
These are the positions
that should be pinched
with pliers.
Table
Shaft
Center of
bracket
[12] DOOR SENSING SWITCH/SECONDARY INTERLOCK SWITCH AND MONITOR SWITCH REMOVAL
1. REMOVAL
1. Disconnect the power supply cord and remove outer case.
2. Open the door and block it open.
3. Discharge high voltage capacitor.
4. Remove the control panel assembly, referring to section of CONTROL PANEL ASSEMBLY REMOVAL.
5. Remove the switch lever from the oven cavity.
6. Disconnect wire leads from the switches.
7. Remove two (2) screws holding latch hook to oven flange.
8. Remove latch hook assembly from oven flange.
9. Push outward on the two (2) retaining tabs holding switch in place.
10.Switch is now free.
2. REINSTALL
1. Re-install each switch in its place. The secondary interlock/monitor
switches are in the lower position and the door sensing switch is in
the upper position.
2. Secure latch hook (with two (2) mounting screws) to oven flange.
3. Re-connect wire leads to each switch. Refer to pictorial diagram.
4. Install the switch lever to the oven cavity.
5. Reinstall the control panel assembly to the oven cavity.
6. Reconnect wire leads to the control unity, referring to the pictorial
diagram.
7. Make sure that the monitor switch is operating properly and ch eck
continuity of the monitor circuit. Refer to chapter "Test Procedure"
and Adjustment procedure.
[13] DOOR SENSING SWITCH/SECONDARY INTERLOCK SWITCH AND MONITOR SWITCH ADJUSTMENT
1. Adjustment
1. Disconnect the power supply cord, and then remove outer case.
2. Open the door and block it open.
3. Discharge high voltage capacitor.
If the door sensing switch, secondary interlock switch and monitor
switch do not operate properly due to a misadjustment, the following
adjustment should be made.
4. Loosen the two (2) screws holding latch hook to the oven cavity
front flange.
5. 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 secondary interlock switch are activated with the door closed. The horizontal position of the latch hook
should be adjusted so that the plunger of the monitor switch is
pressed with the door closed.
6. Secure the screws with washers firmly.
7. Check the operation of all switches. If each switch has not activated
with the door closed, loosen screw and adjust the latch hook position.
11 – 5
R209KK
2. 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 secondary 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
Latch
Heads
Latch Hook
Door Sensing
Switch
Monitor Switch
[14] DOOR REPLACEMENT
1. REMOVAL
1. Disconnect the power supply cord.
2. Open the door slightly.
3. Insert a putty knife (thickness of about 0.5mm) into the gap
between the choke cover and corner portion of door panel as
shown in Figure C-6 to free engaging parts.
4. Pry the choke cover by inserting a putty knife in order shown in figure C-6.
5. Release choke cover from door panel.
6. Now choke cover is free.
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.
Choke Cover
Switch Lever
Figure C-5. Latch Switch Adjustments
16.Now, door screen is free.
Secondary
Interlock Switch
2. REINSTALL
1. Re-install door screen to door frame.
2. Re-install latch spring to the head. Re-install latch spring to the
door frame. Re-install latch head to the door frame.
3. Re-install door panel to door frame by fitting ten (10) tabs of door
frame to ten (10) holes of door panel.
4. Put sealer film on door panel. Refer to "Sealer Film" and figure C-8,
on how to handle the new film.
5. Catch two (2) pins of door panel on two (2) hole of upper and lower
oven hinges.
6. Re-install choke cover to door panel by pushing.
NOTE: After any service to the door;
1) Make sure that door sensing switch, secondary interlock
switch and monitor switch are operating properly. (Refer to
chapter "Test Procedures".).
2) An approved microwave survey meter should be used to
assure compliance with proper microwave radiation emission
limitation standards.
Door Frame
Putty Knife
Figure C-6. Door Disassembly
7. Release two (2) pins of door panel from two (2) holes of upper and
lower oven hinges by lifting up.
8. Now, door panel is free from oven cavity.
9. Release door panel from ten (10) tabs of door frame and remove
door frame by sliding the door panel downward.
10.Now, door panel with sealer film is free.
11.Tear sealer film from door panel.
12.Now, door panel is free.
13.Slide latch head upward and remove it from door frame with releasing latch spring from door frame and latch head.
14.Now, latch head and latch spring are free.
15.Remove door screen from door frame.
3. After any service, 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. 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 (conden sation)-tight or light-tight. Therefore, occasiona l 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.
11 – 6
Pin
Upper
Oven Hinge
Upper Oven
Hinge
R209KK
4. SEALER FILM
1. Put the adhesive tape on the backing film of the sealer film as
shown in Fig. C-8
2. Tear the backing film by pulling the adhesive tape.
3. Put the pasted side of the sealer film on the door panel
Slit choke of
door panel
Lower
Oven Hinge
Lower Oven
Hinge
Pin
Figure C-7. Door Replacement
Choke Cover
Sealer film
Backing film
Adhesive tape
Figure C-8. Sealer film
11 – 7
R209KK
R209KK
CHAPTER 12. CIRCUIT DIAGRAMS
[1] Pictorial Diagram (Figure S-1)
ServiceManual
ORG
RED
BLK
RED
RED
GRY
COM.
RY2
1
MONIT O R
SECONDARY
GRY
COM
N.O.
N.O.
GRY
INTE RLOCK S WITCH
WHT
TURNTABLE
MOTOR
COM
BLU
SWITCH
BLK
N.C.
COM
GRY
GRY
N.O.
3
CN-A
RY1
T1
2
1
3
CN-A
GRY
RED
CN-B
PRIMARY
INTE R LO C K
RELAY
1
1
GRN
CONTROL PANEL
2
2
CN-B
GRY
COM
N.O.
GRY
GRN
RED
GRN
GRN
DOOR
SENSING SWITCH
TEMPER ATURE
FUSE (OVEN)
GRY
BLU
POWER
TRANSFORMER
(RED)
H.V. RECTIFIER
RED
(RED)
(WHT)
HIGH VOLTAGE
CAPACITOR
MAGNETRON
HIGH VOLTAGE COMPONENTS
FAN MOTOR
ORG
OVEN LAMP
WHT
ORG
RED
WHT
GRY
WHT
Noise Filter
to the terminal "L" of the
noise filter.
ORG
which has the black case
GRY
N
Connect the wire lead
WHT
GRY
L
RED
Screw
G
R
N
Power Supply
Cord
FUSE
Oven Cavity
Back Plate
RED
Figure S-1. Pictorial Diagram
12 – 1
[2] Control Panel Circuit (Figure S-2)
4.7K4.7K4.7K
R7R8R9
R60
R209KK
C3
25V
0.1uF
R50-R53
C60
22pF/50V
11KF
R52
R53
R50
R51
220K x 4
C50
C51
C52
C53
C50-C53
330P/50V x 4
LIQUID CRYSTAL DISPLAY
C4
1K
R5
(J14)
(J12)
(J10)
0.01uF/50V
Q1
CHECK
ON DEF. LBS. QTY.
15K
R6
2SA1037AK
UDZ4.3B
ZD1
0.1uF/25V
C10
(J15)
(J13)
(J11)
0.1uF/25V
C1
COM0
COM1
COM2
SEG1
SEG2
SEG3
SEG4
SEG5
SEG6
SEG7
SEG8
SEG9
SEG10
SEG11
SEG12
0.01uF/50V
C11
15K
R10
Q10
DTA143EKA
AIN5
AIN4
AIN3
R30
1633
X2
X1
P03
P01
P00
P02
17
CAPH
CAPL
VLC0
VLC1
VLC2
COM0
COM1
COM2
COM3
SEG0
SEG1
SEG2
SEG3
SEG4
SEG5
SEG6
32
SEG9
SEG8
SEG7
SEG10
RESET
SEG12
SEG11
IC-1
SEG13
VSS
SEG14
VDD
P70
XT2
P71
XT1
P72
IC
P53
AIN5
AVDD
P52
AIN4
P51
AIN3
P50
AIN2
1
64
P20
BZO90
P22
P23
P24
P25
P26
INTP0
P31
P32
P33
P10
P11
AVSS
AIN0
AIN1
49
48
G4 G5 G6G1
G8
G7
POWER
DEFROST
REHEAT
POPCORN
4
WARM
5
2
STOP
LEVEL
G9
CLEAR
1
0
G10
START
MINUTE PLUS
MELT
7
8
< KEY UNIT >
3
TIMER
CLOCK
COOK
9
SOFTEN
6
G2 G3
50V
Q30
3.3K
0.1uF / 25V
Q20
DTA143EKA
C20
DTA143EKA
C40
R40
0.01uF
15K
R41
4.7K
< LSI UNIT >
-
C8
-
C2
-5V
220uF/10V
R4
470uF/25V
d
GND
4
X
D3
D1 - D4 1N4002L
D1
D4
10G471K
VRS1
+
+
D2
T1
PA142DR
Figure S-2. Control Panel Circuit
INT
910 1/2W
bc
a
CN-A
VR
(J1)
A1
AC
B2(5.0)B-XA
C21
10uF/35V
-
NO
AC
Q22
M
DTA123JS
RY2
COM
POWER
DOOR
DU12D1-1P(M)-R
B2
B1
DOOR
TRANSFORMER
D40
< POWER UNIT >
SW.
MC2836
CN-B
NOTE
B2P-VH-B
BZ
SP1
RY1
G5NB-1A12VDC
A3
TERNTABLE
MOTOR
FAN MOTOR
OVEN LAMP
60HZ
AC120V
Q21
COM
+
DTD143ES
D20
MC2836
12 – 2
R209KK
[3] Printed Wiring Board (Figure S-3)
Figure S-3. Printed Wiring Board
12 – 3
PARTS LIST
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
Parts marked "*" may cause undue microwave exposure.
Parts marked " " are used in voltage more than 250V.
CONTENTS
MODEL
R209KK
MICROWAVE OVEN
R-209KK
[1] OVEN PARTS
[2] DOOR AND CONTROL
DOOR PROTECTION SHEET
SPADPA580WRE0
6-5 INSTRUCTION BOOK
6-1 TURNTABLE TRAY
PANEL PARTS
INDEX
TOP PAD ASSEMBLY
FPADBA585WRKZ
POLYETHYLENG BAG
SSAKHA014WRE0
PLASTIC SHEET
SPADPA615WREZ
MICROWAVE OVEN
INTO THE
OVEN CAVITY
TRAY PAD ASSY
(CPADBA287WRKZ)
FOAM SHEET
SPAKHA014WREZ
6-2 TURNRTABLE SUPPORT
Not replaceable items.
SHARP CORPORATION
BOTTOM PAD ASSEMBLY
FPADBA586WRKZ
PACKING CASE
FPAK-A540WRKZ
This document has been published to be used
for after sales service only.
The contents are subject to change without notice.
R209KK
[1] OVEN PARTS
2-1
7-8
7-3
7-8
7-8
7-3
4-8
6-1
4-5
4-11
7-8
1-10
4-6
7-8
7-6
7-7
4-9
7-6
7-6
7-4
1-8
7-1
6-4
1-3
7-2
6-3
1-2
1-7
7-2
7-9
7-9
7-1
7-6
1-12
4-4
4-14
4-12
1-6
4-3
6-2
7-8
2-3
2-2
4-10
7-1
7-8
1-9
1-11
2
4-7
7-5
2-3
4-1
7-8
7-1
7-2
1-4
1-1
4-2
1-1
1-2
1-5
7-7
4-13
R209KK
NO. PARTS CODE
[1] OVEN PARTS
1-1 QSW-MA085WRE0 AF
1-1 QSW-MA137WRE0 AH
1-1 QSW-MA147WRE0 AG
1-2 FFS-BA026WRKZ AN
1-3 FACCDA107WREZ AU
1-3 FACCDA108WREZ -1-4 FH-DZA114WRKZ AR
!
1-5 RC-QZA327WRZZ AT
!
1-5 RC-QZA328WRZZ AS
!
1-5 RC-PZA041WRE0 AS
!
1-5 RC-QZA307WRZZ AX
!
1-6 RMOTEA433WRZZ AX
1-6 RMOTEA346WRE0 AV
1-6 RMOTEA356WRE0 --
!
1-7 RV-MZA338WRZZ BH
*
!
1-7 RV-MZA339WRZZ --
*
1-8 RLMPTA087WRZZ AL
1-8 RLMPTA082WRZZ AL
1-8 RLMPTA085WRZZ AL
1-9 RMOTDA264WRZZ AT
1-9 RMOTDA252WRZZ AN
1-9 RMOTDA186WRE0 AW
1-10 QFS-TA014WRE0 AG
1-10 RTHM-A075WRE0 AN
1-10 RTHM-A119WRE0 AK
1-11 RTRN-A727WRZZ BF
!
1-11 RTRN-A728WRZZ BF
!
1-12 FPWBFA385WRKZ AV
2-1 GCABUA960WRPZ BE
2-2 GDAI-A377WRWZ AS
2-3 GLEGPA104WREZ AF
*
4-1 PHOK-A144WRFZ AL
4-2 LBNDKA168WRPZ AD
4-3 NFANJA053WRFZ AG
4-4 PDUC-A908WRWZ AR
*
4-5 ************* -4-6 LANGFA267WRPZ AH
4-7 MLEVPA241WRFZ AG
4-8 PCOVPA419WREZ AG
4-9 PDUC-A909WRPZ AN
4-10 PPACGA176WREZ AC
4-11 PCUSUA501WRP0 AB
4-12 PCUSGA662WRP0 AD
4-13 PCUSGA661WRP0 AD
4-14 PCUSGA615WRPZ AE
6-1 NTNT-A034WRF0 AM
6-2 FROLPA101WRKZ AR
6-3 TCAUAA291WRRZ AE
6-4 TCAUAA268WRRZ AF
7-1 XHPSD40P08K00 AC
7-2 XHTSD40P08RV0 AA
7-3 LX-CZA070WRE0 AC
7-4 LX-CZ0052WRE0 AA
7-5 LX-EZA042WRE0 AB
7-6 LX-CZA073WRE0 AC
7-7 XHPSD40P08000 AA
7-8 XOTSD40P08000 AA
7-9 XOTSF40P08000 AA
PRICE
RANK
NEW
MARK
PART
RANK
ELECTRIC PARTS
Secondary interlock switch/ Door sensing switch
Secondary interlock switch/ Door sensing switch (Interchangeable)
Secondary interlock switch/ Door sensing switch (Interchangeable)
Monitor fuse (15A) and monitor switch assembly (SwitchAM51620C53Y1)
Power supply cord
Power supply cord (Interchangeable) (for production use)
High voltage rectifier assy
High voltage capacitor
High voltage capacitor (Interchangeable)
High voltage capacitor (Interchangeable)
High voltage capacitor (Interchangeable)
Fan motor
Fan motor (Interchangeable)
Fan motor (Interchangeable) for production use
Magnetron
Magnetron (Interchangeable) for production use
Oven lamp
Oven lamp (Interchangeable)
Oven lamp (Interchangeable)
Turntable motor
Turntable motor (Interchangeable)
Turntable motor (Interchangeable)
Temperature fuse 150C (Oven)
Thermal cut-out 145C (Oven) (Interchangeable)
Thermal cut-out 145C (Oven) (Interchangeable)
Power trnasformer
Power transformer (Interchangeable) for production
Noise filter
CABINET PARTS
Outer case cabinet
Bottom plate
Foot
OVENPARTS
Latch hook
Capacitor holder
Fan blade
Fan duct
Oven cavity (Not replaceable part)
Chassis support
Switch lever
Waveguide cover
Air duct
TTM packing
Cushion
Cushion B
Cushion A
Cushion
MISCELLANEOUS
Turntable
Turntable support
Monitor caution
SCREWS,NUTS AND WASHERS
DHHS caution label
screw : 4mm x 8mm
Screw : 4mm x 8mm
Special screw (Torx tamper pfoof screw)
Special screw
Special screw
Special screw
Screw : 4mm x 8mm
Screw : 4mm x 8mm
Screw : 4mm x 8mm
DESCRIPTION
3
R209KK
[2] DOOR AND CONTROL PANEL PARTS
5-1
5-2
5-7
5-6
5-3
3-1
5-5
5-4
3-8
3-7
3-5
3-1-2
6-5
3-4
3-6
3-1-1
6-6
3-3
3-2
4
R209KK
NO. PARTS CODE
[2] DOOR AND CONTROL PANEL PARTS
3-1 FPNLCB856WRKZ BA
3-1-1 PSHEPB107WREZ AT
3-1-2 QSW-KA053DRZZ AQ
3-2 JBTN-B309WRFZ AG
3-3 MSPRCA050WRE0 AB
3-4 DPWBFC479WRUZ BH
3-5 QCNC-A014WRZZ AE
3-6 RLCDSA105DRZZ AQ
3-7 XEPSD30P08XS0 AA
3-8 PCUSUA633WREZ AE
*
5-1 FDORFA397WRTZ BB
*
5-2 GWAKPA980WRRZ AW
5-3 HPNL-A835WRRZ AS
*
5-4 LSTPPA205WRFZ AF
5-5 MSPRTA187WRE0 AC
5-6 PSHEPA782WREZ AG
*
5-7 GCOVHA424WRFZ AK
6-5 TINSEB076WRRZ AM
6-6 FW-VZC044WREZ AQ
PRICE
RANK
NEW
MARK
PART
RANK
CONTROL PANEL PARTS
DOORPARTS
MISCELLANEOUS
DESCRIPTION
Control panel frame with key unit
Graphic sheet
Membrane switch
Open button
Open button spring
Control unit
Rubber connector
Liquid crystal display
Screw; 3mm x 8mm
Cushion
Door panel assembly
Door frame
Door screen
Latch head
Spring
Sealer film
Choke cover
Instruction book
Main wire harness
5
R209KK
INDEX
PARTS CODE No.
DPWBFC479WRUZ 2-3-4 BH
FACCDA107WREZ 1-1-3 AU
FACCDA108WREZ 1-1-3 -FDORFA397WRTZ 2-5-1 BB
FFS-BA026WRKZ 1-1-2 AN
FH-DZA114WRKZ 1-1-4 AR
FPNLCB856WRKZ 2-3-1 BA
FPWBFA385WRKZ 1-1-12 AV
FROLPA101WRKZ 1-6-2 AR
FW-VZC044WREZ 2-6-6 AQ
GCABUA960WRPZ 1-2-1 BE
GCOVHA424WRFZ 2-5-7 AK
GDAI-A377WRWZ 1-2-2 AS
GLEGPA104WREZ 1-2-3 AF
GWAKPA980WRRZ 2-5-2 AW
HPNL-A835WRRZ 2-5-3 AS
JBTN-B309WRFZ 2-3-2 AG
LANGFA267WRPZ 1-4-6 AH
LBNDKA168WRPZ 1-4-2 AD
LSTPPA205WRFZ 2-5-4 AF
LX-CZ0052WRE0 1-7-4 AA
LX-CZA070WRE0 1-7-3 AC
LX-CZA073WRE0 1-7-6 AC
LX-EZA042WRE0 1-7-5 AB
MLEVPA241WRFZ 1-4-7 AG
MSPRCA050WRE0 2-3-3 AB
MSPRTA187WRE0 2-5-5 AC
NFANJA053WRFZ 1-4-3 AG
NTNT-A034WRF0 1-6-1 AM
PCOVPA419WREZ 1-4-8 AG
PCUSGA615WRPZ 1-4-14 AE
PCUSGA661WRP0 1-4-13 AD
PCUSGA662WRP0 1-4-12 AD
PCUSUA501WRP0 1-4-11 AB
PCUSUA633WREZ 2-3-8 AE
PDUC-A908WRWZ 1-4-4 AR
PDUC-A909WRPZ 1-4-9 AN
PHOK-A144WRFZ 1-4-1 AL
PPACGA176WREZ 1-4-10 AC
PSHEPA782WREZ 2-5-6 AG
PSHEPB107WREZ 2-3-1-1 AT
QCNC-A014WRZZ 2-3-5 AE
QFS-TA014WRE0 1-1-10 AG
QSW-KA053DRZZ 2-3-1-2 AQ
QSW-MA085WRE0 1-1-1 AF
QSW-MA137WRE0 1-1-1 AH
QSW-MA147WRE0 1-1-1 AG
[ D ]
[ F ]
[ G ]
[ H ]
[ J ]
[ L ]
[ M ]
[ N ]
[ P ]
[ Q ]
PRICE
RANK
NEW
MARK
PART
RANK
PRICE
PARTS CODE No.
[ R ]
RC-PZA041WRE0 1-1-5 AS
RC-QZA307WRZZ 1-1-5 AX
RC-QZA327WRZZ 1-1-5 AT
RC-QZA328WRZZ 1-1-5 AS
RLCDSA105DRZZ 2-3-6 AQ
RLMPTA082WRZZ 1-1-8 AL
RLMPTA085WRZZ 1-1-8 AL
RLMPTA087WRZZ 1-1-8 AL
RMOTDA186WRE0 1-1-9 AW
RMOTDA252WRZZ 1-1-9 AN
RMOTDA264WRZZ 1-1-9 AT
RMOTEA346WRE0 1-1-6 AV
RMOTEA356WRE0 1-1-6 -RMOTEA433WRZZ 1-1-6 AX
RTHM-A075WRE0 1-1-10 AN
RTHM-A119WRE0 1-1-10 AK
RTRN-A727WRZZ 1-1-11 BF
RTRN-A728WRZZ 1-1-11 BF
RV-MZA338WRZZ 1-1-7 BH
RV-MZA339WRZZ 1-1-7 --
[ T ]
TCAUAA268WRRZ 1-6-4 AF
TCAUAA291WRRZ 1-6-3 AE
TINSEB076WRRZ 2-6-5 AM
[ X ]
XEPSD30P08XS0 2-3-7 AA
XHPSD40P08000 1-7-7 AA
XHPSD40P08K00 1-7-1 AC
XHTSD40P08RV0 1-7-2 AA
XOTSD40P08000 1-7-8 AA
XOTSF40P08000 1-7-9 AA
RANK
NEW
MARK
COPYRIGHT © 2005 BY SHARP CORPORATION
ALL RIGHTS RESERVED.
No part of this publication may be reproduced, stored in retrieval systems, or transmitted in anyform or
by any means, electronic, mechanical, photocopying, recording, or other wise, without prior written
permission of the publisher.
PART
RANK
2005 SHARP CORP.(2S800E) Printed in U.S.A
6
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