Sharp R-510HW - 1200 Watt Full Size Microwave Service manual

R - 508HS
SUPPLEMENTAL SERVICE MANUAL
S83M216R508HE
MICROWAVE OVEN
MODEL
R-508HS
R-508HS
This is a supplemental Service Manual for Microwave Oven model R-508HS. This model is quite similar to the base models
R-510HK/R-510HW; (S43M208R510HE).
This supplemental manual must be used in conjunction with the base model service manual for complete operation,
service, safety and replacement parts information.
In the interest of user-safety the oven should be restored to its original condition and only parts identical to those specified
should be used.
WARNING TO SERVICE PERSONNEL: Microwave ovens contain circuitry capable of producing very high voltage and
current, contact with following parts may result in a severe, possibly fatal, electrical shock. (High Voltage Capacitor,
High Voltage Power Transformer, Magnetron, High Voltage Rectifier Assembly, High Voltage Harness etc..)
TABLE OF CONTENTS
Page
PRECAUTIONS TO BE OBSERVED BEFORE AND DURING SERVICING TO
AVOID POSSIBLE EXPOSURE TO EXCESSIVE MICROWAVE ENERGY .................. INSIDE FRONT COVER
BEFORE SERVICING ..................................................................................................... INSIDE FRONT COVER
WARNING TO SERVICE PERSONNEL .............................................................................................................. 1
MICROWAVE MEASUREMENT PROCEDURE .................................................................................................. 2
FOREWORD AND WARNING ............................................................................................................................. 3
PRODUCT SPECIFICATIONS ............................................................................................................................. 4
GENERAL INFORMATION ................................................................................................................................. 4
OPERATION ........................................................................................................................................................ 6
TEST PROCEDURE ..............................................................................................................................................7
TOUCH CONTROL PANEL ....................................................................................................................................8
COMPONENT REPLACEMENT AND ADJUSTMENT PROCEDURE .................................................................. 12
PICTORIAL DIAGRAM ........................................................................................................................................ 17
CONTROL UNIT CIRCUIT ................................................................................................................................... 18
PRINTED WIRING BOARD ................................................................................................................................. 19
PARTS LIST ........................................................................................................................................................ 20
PACKING AND ACCESSORIES ......................................................................................................................... 24
SHARP ELECTRONCS CORPORATION
This document has been published to be used for after
sales service only.
The contents are subject to change without notice.
Service Headquarters: Sharp Plaza, Mahwah, New Jersey, 07430-2135
R-508HS
PRECAUTIONS TO BE OBSERVED BEFORE AND
DURING SERVICING TO AVOID POSSIBLE
EXPOSURE TO EXCESSIVE MICROWAVE
ENERGY
(a) Do not operate or allow the oven to be operated with the door open.
(b) Make the following safety checks on all ovens to be serviced before activating the magnetron or other
microwave source, and make repairs as necessary: (1) interlock operation, (2) proper door closing, (3)
seal and sealing surfaces (arcing, wear, and other damage), (4) damage to or loosening of hinges and
latches, (5) evidence of dropping or abuse.
(c) Before turning on microwave power for any service test or inspection within the microwave generating
compartments, check the magnetron, wave guide or transmission line, and cavity for proper alignment,
integrity, and connections.
(d) Any defective or misadjusted components in the interlock, monitor, door seal, and microwave generation
and transmission systems shall be repaired, replaced, or adjusted by procedures described in this
manual before the oven is released to the owner.
(e) A microwave leakage check to verify compliance with the Federal Performance Standard should be
performed on each oven prior to release to the owner.
BEFORE SERVICING
Before servicing an operative unit, perform a microwave emission check as per the
Microwave Measurement Procedure outlined in this service manual.
If microwave emissions level is in excess of the specified limit, contact SHARP
ELECTRONICS CORPORATION immediately @1-800-237-4277.
If the unit operates with the door open, service person should 1) tell the user
not to operate the oven and 2) contact SHARP ELECTRONICS CORPORATION and Food and
Drug Administration's Center for Devices and Radiological Health immediately.
Service personnel should inform SHARP ELECTRONICS CORPORATION of any certified unit
found with emissions in excess of 4mW/cm2. The owner of the unit should be instructed
not to use the unit until the oven has been brought into compliance.
R-508HS
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.
Don't Touch !
Danger High Voltage
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.
Before Servicing
1. Disconnect the power supply cord
remove outer case.
2. Open the door and block it open.
3. Discharge high voltage capacitor.
, and then
WARNING:RISK OF ELECTRIC SHOCK.
DISCHARGE THE HIGH-VOLTAGE
CAPACITOR BEFORE SERVICING.
After repairing
The high-voltage capacitor remains charged about 60
seconds after the oven has been switched off. Wait for 60
seconds and then short-circuit the connection of the highvoltage capacitor (that is the connecting lead of the highvoltage rectifier) against the chassis with the use of an
insulated screwdriver.
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.
Whenever troubleshooting is performed the power supply
must be disconnected. It may, in some cases, be necessary
to connect the power supply after the outer case has been
removed, in this event:
1. Disconnect the power supply cord, and then remove
outer case.
2. Open the door and block it open.
3. Discharge high voltage capacitor.
4. Disconnect the leads to the primary of the power
transformer.
5. Ensure that the leads remain isolated from other
components and oven chassis by using insulation tape.
6. After that procedure, reconnect the power supply cord.
Microwave ovens should not be operated empty. To test for
the presence of microwave energy within a cavity, place a
cup of cold water on the oven turntable, close the door and
set the power to HIGH and set the microwave timer for two
(2) minutes. When the two minutes has elapsed (timer at
zero) carefully check that the water is now hot. If the water
remains cold carry out Before Servicing procedure and reexamine the connections to the component being tested.
When all service work is completed and the oven is fully
assembled, the microwave power output should be checked
and a microwave leakage test should be carried out.
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R-508HS
MICROWAVE MEASUREMENT PROCEDURE
A. Requirements:
1) Microwave leakage limit (Power density limit): The power density of microwave radiation emitted by a microwave oven
should not exceed 1mW/cm2 at any point 5cm or more from the external surface of the oven, measured prior to acquisition
by a purchaser, and thereafter (through the useful life of the oven), 5 mW/cm2 at any point 5cm or more from the external
surface of the oven.
2) Safety interlock switches:
Primary interlock relay switch shall prevent microwave radiation emission in excess of the requirement as above
mentioned. Secondary interlock relay and door sensing switch shall prevent microwave radiation emission in excess of
5 mW/cm2 at any point 5cm or more from the external surface of the oven.
B. Preparation for testing:
Before beginning the actual measurement of leakage, proceed as follows:
1) Make sure that the actual instrument is operating normally as specified in its instruction booklet.
Important:
Survey instruments that comply with the requirement for instrumentation as prescribed by the performance standard for
microwave ovens, 21 CFR 1030.10(c)(3)(i), must be used for testing.
2) Place the oven tray in the oven cavity.
3) Place the load of 275±15 ml (9.8 oz) of tap water initially at 20±5O C (68OF) in the center of the oven cavity.
The water container shall be a low form of 600 ml (20 oz) beaker with an inside diameter of approx. 8.5 cm (3-1/2 in.) and
made of an electrically nonconductive material such as glass or plastic.
The placing of this standard load in the oven is important not only to protect the oven, but also to insure that any leakage
is measured accurately.
4) Set the cooking control on Full Power Cooking Mode.
5) Close the door and select a cook cycle of several minutes. If the water begins to boil before the survey is completed, replace
it with 275 ml of cool water.
C. Leakage test:
Closed-door leakage test (microwave measurement):
1) Grasp the probe of the survey instrument and hold it perpendicular to the gap between the door and the body of the oven.
2) Move the probe slowly, not faster than 1 in./sec. (2.5 cm/sec.) along the gap, watching for the maximum indication on the
meter.
3) Check for leakage at the door screen, sheet metal seams and other accessible positions where the continuity of the metal
has been breached (eg., around the switches, indicator, and vents).
While testing for leakage around the door, pull the door away from the front of the oven as far as is permitted by the closed
latch assembly.
4) Measure carefully at the point of highest leakage and make sure that the highest leakage is no greater than 4mW/cm2, and
that the primary interlock switch/secondary interlock relay does turn the oven OFF before any door movement.
NOTE: After servicing, record data on service invoice and microwave leakage report.
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R-508HS
SERVICE MANUAL
PRODUCT DESCRIPTION
MICROWAVE OVEN
R-508HS
GENERAL INFORMATION
FOREWORD
This supplemental Manual has been prepared to provide Sharp Electronics
Corp. Service Personnel with Operation and Service Information for the
SHARP MICROWAVE OVEN; R-508HS.
The model R-508HS is quite similar to base models R-510HK/R-510HW
(Ref.# S43M208R510HE).
OPERATION
TOUCH CONTROL PANEL
Check the interlock switches and the door seal carefully. Special attention
should be given to avoid electrical shock and microwave radiation hazard.
COMPONENT REPLACEMENT
AND ADJUSTMENT PROCEDURE
WARNING
Never operate the oven until the following points are ensured:
(A) The door is tightly closed.
(B) The door brackets and hinges are not defective.
(C) The door packing is not damaged.
(D) The door is not deformed or warped.
(E) There is no other visible damage with the oven.
WIRING DIAGRAM
Servicing and repair work must be carried out only by trained service
personnel.
PARTS LIST
DANGER
Certain initial parts are intentionally not grounded and present
a risk of electrical shock only during servicing. Service personnel - Do not contact the following parts while the appliance is
energized;
High Voltage Capacitor, Power Transformer, Magnetron, High
Voltage Rectifier Assembly, High Voltage Harness;
If provided, Vent Hood, Fan assembly, Cooling Fan Motor.
All the parts marked “*” on parts list are used at voltages more than
250V.
Removal of the outer wrap gives access to voltage above 250V.
All the parts marked “∆” on parts list may cause undue microwave
exposure, by themselves, or when they are damaged, loosened or
removed.
SHARP ELECTRONICS CORPORATION
SHARP PLAZA, MAHWAH,
NEW JERSEY 07430-2135
3
R-508HS
SPECIFICATION
ITEM
DESCRIPTION
PowerRequirements
120 Volts
14.3 Amperes, 1700 watts
60 Hertz
Single phase, 3 wire grounded
Power Output
1200 watts (IEC 705 TEST PROCEDURE)
Operating frequency of 2450MHz
Case Dimensions
Width 24"
Height 13-3/8"
Depth 19-1/8"
Cooking Cavity Dimensions
Width 17-3/8"
Height 10-1/2"
Depth 18-5/8"
2.0 Cubic Feet
Control Complement
Touch Control System
Clock ( 1:00 - 12:59 )
Timer (0 - 99 min. 99 seconds)
Microwave Power for Variable Cooking
Repetition Rate;
P-HI .................................................. Full power throughout the cooking time
P-90 .................................................................... approx. 90% of Full Power
P-80 .................................................................... approx. 80% of Full Power
P-70 .................................................................... approx. 70% of Full Power
P-60 .................................................................... approx. 60% of Full Power
P-50 .................................................................... approx. 50% of Full Power
P-40 .................................................................... approx. 40% of Full Power
P-30 .................................................................... approx. 30% of Full Power
P-20 .................................................................... approx. 20% of Full Power
P-10 .................................................................... approx. 10% of Full Power
P-0 ...................................................... No power throughout the cooking time
Cook pads, Defrost pads, Number selection pads, Power Level pad, Timer/Clock
pad,Clear pad, Reheat, Popcorn and Minute Plus, Stop/Clear, Start (Door).
Oven Cavity Light
Yes
Safety Standard
UL Listed
FCC Authorized
DHHS Rules, CFR, Title 21, Chapter 1, Subchapter J
GENERAL INFORMATION
GROUNDING INSTRUCTIONS
This oven is equipped with a three prong grounding plug. It must be plugged into a wall receptacle that is properly installed
and grounded in accordance with the National Electrical Code and local codes and ordinances.
In the event of an electrical short circuit, grounding reduces the risk of electric shock by providing an escape wire for the electric
current.
WARNING:
Improper use of the grounding plug can result in a risk of electric shock.
Electrical Requirements
The electrical requirements are a 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 two-pronged wall-receptacle is encountered, it is the personal responsibility and obligation of the customer to contact
4
R-508HS
a qualified electrician and have it replaced with a properly grounded
three-pronged 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.
Grounded
Receptacle Box
3-Pronged
CAUTION: DO NOT UNDER ANY CIRCUMSTANCES CUT OR RE- Plug
MOVE THE ROUND GROUNDING PRONG FROM THIS
Grounding Pin
PLUG.
3-Pronged Receptacle
OVEN DIAGRAM
1. One touch door open button.
Push to open door.
2. Door latches.
The oven will not operate unless the
door is securely closed.
3. Removable turntable support.
4. Removable turntable.
The turntable will rotate clockwise or
counterclockwise.
5. Oven lamp.
It will light when oven is operating or
door is opened.
6. Oven door with see-through window.
7. Ventilation openings. (Rear)
8. Auto-Touch control panel.
9. Time display: Digital display, 99
minutes 99 seconds.
6
9
7
11
5
8
2
10
1
4
3
10. Wave guide cover.
11. Power supply cord
TOUCH CONTROL PANEL
NOTE:
The directed features are disabled after one minute 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.
R-508HS
5
R-508HS
OPERATION
DESCRIPTION OF OPERATING SEQUENCE
The following is a description of component functions during
oven operation.
and is mechanically associated with the door so that it will
function in the following sequence.
(1) When the door opens from the closed position, the
secondary interlock relay (RY2) and primary interlock
switch open their contacts. And contacts of the relay
(RY1) remains closed. Then the monitor switch contacts
close.
(2) When the door is closed from the open position, the
monitor switch contacts open first. Then the contacts of
the primary interlock switch and door sensing switch
close. And contacts of the relay (RY1) open.
If the primary interlock switch and secondary interlock relay
(RY2) fail with the contacts closed when the door is opened,
the closing of the monitor switch contacts will form a short
circuit through the C/T fuse, primary interlock switch, relay
(RY1) and secondary interlock relay (RY2), causing the C/T
fuse to blow.
OFF CONDITION
Closing the door activates the door sensing switch and
primary interlock switch. (In this condition, the monitor switch
contacts are opened.)
When oven is plugged in, 120 volts A.C. is supplied to the
control unit. (Figure O-1).
1. The display will show flashing "88:88".
To set any program or set the clock, you must first touch
the CLEAR pad/button. The display will clear, and " : "
will appear.
COOKING CONDITION
Program desired cooking time by touching the NUMBER
pads. Program the power level by touching the POWER
LEVEL pad and then a Number pad.
When the START pad is touched, the following operations
occur:
POWER LEVEL P-0 TO P-90 COOKING
When Variable Cooking Power is programmed, the 120 volts
A.C. is supplied to the power transformer intermittently
through the contacts of relay (RY-2) which is operated by the
control unit within a 32 second time base. Microwave power
operation is as follows:
1. The contacts of relays are closed and components
connected to the relays are turned on as follows.
(For details, refer to Figure O-2)
RELAY
RY-1
RY-2
VARI-MODE
Power 10(P-HI)
(100% power)
Power 9(P-90)
(approx. 90% power)
Power 8(P-80)
(approx. 80% power)
Power 7(P-70)
(approx. 70% power)
Power 6(P-60)
(approx. 60% power)
Power 5(P-50)
(approx. 50% power)
Power 4(P-40)
(approx. 40% power)
Power 3(P-30)
(approx. 30% power)
Power 2(P-20)
(approx. 20% power)
Power 1(P-10)
(approx. 10% power)
Power 0(P-0)
(0% power)
CONNECTED COMPONENTS
oven lamp/turntable motor/fan motor
power transformer
2. 120 volts A.C. is supplied to the primary winding of the
power transformer and is converted to about 3.3 volts
A.C. output on the filament winding, and approximately
2370 volts A.C. on the high voltage winding.
3. The filament winding voltage heats the magnetron filament
and the H.V. winding voltage is sent to a voltage doubler
circuit.
4. The microwave energy produced by the magnetron is
channelled through the waveguide into the cavity feedbox, and then into the cavity where the food is placed to
be cooked.
5. Upon completion of the cooking time, the power
transformer, oven lamp, etc. are turned off, and the
generation of microwave energy is stopped. The oven
will revert to the OFF condition.
6. When the door is opened during a cook cycle, the monitor
switch, door sensing switch, primary interlock switch,
relay (RY1) and secondary interlock relay are activated
with the following results. The circuits to the turntable
motor, the cooling fan motor, and the high voltage
components are de-energized, the oven lamp remains on,
and the digital read-out displays the time still remaining in
the cook cycle when the door was opened.
7. The monitor switch electrically monitors the operation of
the primary interlock switch and secondary interlock relay
Note:
6
ON TIME
32 sec.
OFF TIME
0 sec.
30 sec.
2 sec.
26 sec.
6 sec.
24 sec.
8 sec.
22 sec.
10 sec.
18 sec.
14 sec.
16 sec.
16 sec.
12 sec.
20 sec.
8 sec.
24 sec.
6 sec.
26 sec.
0 sec.
32 sec.
The ON/OFF time ratio does not correspond with the
percentage of microwave power, because approx. 2
seconds are needed for heating of the magnetron
filament.
R-508HS
TEST PROCEDURES
PROCEDURE
LETTER
COMPONENT TEST
G8
Key unit (Membrane Switch) front view
G10
G11
POPCORN
G12
Key unit ribbon cable
G6
G5
G4
STOP
*CLEAR
G9
Pin
NO. G13
DEFROST
G3
G2
G1
CLEAR
REHEAT
2
1
4
7
5
TIMER
CLOCK
9
8
0
POWER
LEVEL
3
6
*START
*MINUTE
PLUS
G13
Pin
NO. G1
G7
COOK
* When door is close,
key can be operated.
Key Unit
K
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 the normal open terminal of the relay RY1 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 indicated ............... Defective relay.
DC. voltage not indicated ......... Check diode which is connected to the relay coil. If diode is good,
control unit is defective.
RELAY SYMBOL
OPERATIONAL VOLTAGE
CONNECTED COMPONENTS
RY1
RY2
Approx. 12.0V D.C.
Approx. 12.0V D.C.
Oven lamp / Turntable motor / Cooling fan motor
Power transformer
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.
L
COMPU DEFROST TEST
WARNING : The oven should be fully assembled before following procedure.
(1) Open the door.
(2) Place one cup of water in the center of the turntable tray in the oven cavity.
(3) Touch the " DEFROST " pad.
(4) Touch the number pad " 2 ".
(5) Touch the number pad " 5 ".
(6) Close the door.
(7) Touch the "START " pad.
(8) The oven is in Defrost cooking condition.
(9) The oven will operate as follows
MENU
1ST STAGE
STEAKS/CHOPS LEVEL
TIME
0.5lb
60%
20sec.
2ND STAGE
LEVEL
TIME
40%
20sec.
3RD STAGE
LEVEL TIME
30%
45sec.
(10) If improper operation is indicated, the control unit is probably defective and should be checked.
7
R-508HS
TOUCH CONTROL PANEL ASSEMBLY
OUTLINE OF TOUCH CONTROL PANEL
The touch control section consists of the following units.
(1) Key Unit
(2) Control Unit (The Control Unit consists of Power Unit and
LSI Unit).
3) Power Source Circuit
This circuit generates voltages 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.
The principal functions of these units and the signals communicated among them are explained below.
Key Unit
The key unit is composed of a matrix, signals generated in the
LSI are sent to the key unit through P20-P27.
When a key pad is touched, a signal is completed through the
key unit and passed back to the LSI through P70, P71, P41,
P45, P47 and AN3 to perform the function that was requested.
Control Unit
Control unit consists of LSI, reset circuit, indicator circuit,
power source circuit, relay circuit, buzzer circuit, synchronizing signal circuit and back light 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 22 segments and 3 common
electrodes using a Liquid Crystal Display.
Symbol
Voltage
VSS
-5V
Application
LSI(IC1)
4) Relay Circuit
A 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 compose 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.
8) Back Light Circuit
A circuit to drive the back light (Light emitting diodes LD1LD4).
8
R-508HS
DESCRIPTION OF LSI
LSI
The I/O signal of the LSI is detailed in the following table.
Pin No.
Signal
I/O
Description
1-2
VL2-VL1
IN
Power source voltage input terminal.
Standard voltage for LCD.
3-6
AN7-AN4
IN
Terminal to change cooking input according to the Model.
By using the A/D converter contained in the LSI, DC voltage in accordance with the Model
in operation is applied to set up its cooking constant.
7
AN3
IN
Signal coming from touch key.
When either G13 line on key matrix is touched, a corresponding signal out of P20 - P27
will be input into AN3. When no key is touched, the signal is held at “H” level.
8
AN2
IN
To input signal which communicates the door open/close information to LSI.
Door close "H" level signal (0V). Door Open "L" level (-5V).
9
AN1
IN
Terminal not used.
10
AN0
IN
Terminal not used.
11-13
P57-P55
OUT
Terminal not used.
14
CNTR0
OUT
Signal to sound buzzer (2.0 kHz).
A: key touch sound.
B: Completion sound.
0.1 sec.
H : GND
A
2.0 sec.
L : -5V
H : GND
B
L : -5V
15
P53
OUT
Terminal not used.
16
P52
OUT
Oven lamp, fan motor and turntable motor driving signal
16.7 msec.
To turn on and off shut off relay (RY1). The
square waveform voltage is delivered to the
RY1 driving circuit and RY2 control circuit.
H : GND
L : -5V
During cooking
17
P51
OUT
Terminal not used.
18
P50
OUT
19
P47
IN
Magnetron high-voltage circuit driving signal.
OFF
H : GND
To turn on and off the cook relay (RY2). The Maximum
ON
signals holds “L” level during microwave cook- output
L : -5V
ing and “H” level while not cooking. In other
OFF
OFF
H : GND
cooking modes (variable cooking) the signal 70% of maximum
24 sec.
turns to “H” level and “L” level in repetition output
8 sec.
ON
L : -5V
according to the power level.
Signal similar to AN3.
When either G13 line on key matrix is touched, a corresponding signal will be input into
P46.
20
P46
OUT
21
P45
IN
22-23
P44-P43
OUT
24
INT0
IN
Terminal not used.
Signal similar to AN3.
When either G12 line on key matrix is touched, a corresponding signal will be input into
P45.
Terminal not used.
Signal synchronized with commercial power source frequency.
This is the basic timing for time processing of LSI.
H : GND
L : -5V
16.7 msec.
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R-508HS
Pin No.
Signal
I/O
25
P41
IN
Signal similar to AN3.
When either G11 line on key matrix is touched, a corresponding signal will be input into
P41.
26
P40
IN
Connected to GND through the pull-down resistor.
27
RESET
IN
Auto clear terminal.
Signal is input to reset the LSI to the initial state when power is applied.
28
P71
IN
Signal similar to AN3.
When either G10 line on key matrix is touched, a corresponding signal will be input into
P71.
29
P70
IN
Signal similar to ANI3.
When either G9 line on key matrix is touched, a corresponding signal will be input into P70.
30
XIN
IN
Internal clock oscillation frequency control input setting.
The internal clock frequency is set by inserting the ceramic filter oscillation circuit with
respect to XOUT terminal.
31
XOUT
OUT
32
VSS
IN
33
P27
OUT
Key strobe signal.
Signal applied to touch-key section. A pulse signal is input to P70, P71, P41, P45, P47
and AN3 terminal while one of G8 line keys on key matrix is touched.
34
P26
OUT
Key strobe signal.
Signal applied to touch-key section. A pulse signal is input to P70, P71, P41, P45, P47
and AN3 terminal while one of G7 line keys on key matrix is touched.
35
P25
OUT
Key strobe signal.
Signal applied to touch-key section. A pulse signal is input to P70, P71, P41, P45, P47
and AN3 terminal while one of G6 line keys on key matrix is touched.
36
P24
OUT
Key strobe signal.
Signal applied to touch-key section. A pulse signal is input to P70, P71, P41, P45, P47
and AN3 terminal while one of G5 line keys on key matrix is touched.
37
P23
OUT
Key strobe signal.
Signal applied to touch-key section. A pulse signal is input to P70, P71, P41, P45, P47
and AN3 terminal while one of G4 line keys on key matrix is touched.
38
P22
OUT
Key strobe signal.
Signal applied to touch-key section. A pulse signal is input to P70, P71, P41, P45, P47
and AN3 terminal while one of G3 line keys on key matrix is touched.
39
P21
OUT
Key strobe signal.
Signal applied to touch-key section. A pulse signal is input to P70, P71, P41, P45, P47
and AN3 terminal while one of G2 line keys on key matrix is touched.
40
P20
OUT
Key strobe signal.
Signal applied to touch-key section. A pulse signal is input to P70, P71, P41, P45, P47
and AN3 terminal while one of G1 line keys on key matrix is touched.
41
P17
OUT
Back light signal. (Light emitting diodes) driving signal
42-46
P16-P12
OUT
Terminal not used.
47-50
51-72
SEG25-SEG22
OUT
OUT
Terminal not used.
Segment data signal.
SEG21-SEG0
Description
Internal clock oscillation output.
Output to control oscillation input to XIN.
Power source voltage : -5.0V.
The power source voltage to the drive LSI is input to VSS terminal.
10
R-508HS
Pin No.
Signal
I/O
Description
Connected to LCD.
The relation between signals are as follows:
LSI signal (Pin No.)
LCD (Pin No.)
SEG0 (72) ................................ SEG 0
SEG1 (71) ................................ SEG 1
SEG2 (70) ................................ SEG 2
SEG3 (69) ................................ SEG 3
SEG4 (68) ................................ SEG 4
SEG5 (67) ................................ SEG 5
SEG6 (66) ................................ SEG 6
SEG7 (65) ................................ SEG 7
SEG8 (64) ................................ SEG 8
SEG9 (63) ................................ SEG 9
SEG10 (62) ............................... SEG 10
LSI signal (Pin No.)
LCD (Pin No.)
SEG11 (61) ............................... SEG 11
SEG12 (60) ............................... SEG 12
SEG13 (59) ............................... SEG 13
SEG14 (58) ............................... SEG 14
SEG15 (57) ............................... SEG 15
SEG16 (56) ............................... SEG 16
SEG17 (55) ............................... SEG 17
SEG18 (54) ............................... SEG 18
SEG19 (53) ............................... SEG 19
SEG20 (52) ............................... SEG 20
SEG21 (51) ............................... SEG 21
73
VCC
IN
Power source voltage : GND(0V).
74
VREF
IN
A/D converter power source voltage : GND(0V).
The power source voltage to drive the A/D converter. Connected to GND.
75
AVSS
IN
A/D converter power source voltage : -5.0V.
The power source voltage to drive the A/D converter.
76
COM3
OUT
Terminal not used.
77
COM2
OUT
Common data signal.
Connected to LCD signal COM1.
78
COM1
OUT
Common data signal.
Connected to LCD signal COM2.
79
COM0
OUT
Common data signal.
Connected to LCD signal COM3.
80
VL3
IN
Power source voltage input terminal.
Standard voltage for LCD. Connected to GND.
11
R-508HS
OVEN LAMP AND LAMP SOCKET REMOVAL
1.
2.
3.
4.
5.
6.
7.
Disconnect the power supply cord and remove outer case.
Open the door and block it open.
Discharge high voltage capacitor.
Pull the wire leads from the oven lamp socket.
Remove the screw from the oven lamp socket.
Remove the oven lamp socket from the magnetron duct.
Remove the oven lamp from the socket by turning the
oven lamp.
8. Now, the oven lamp and the oven lamp socket are free.
Terminal
Oven lamp
socket
Figure C-1. Oven lamp socket
POSITIVE LOCK® CONNECTOR (NO-CASE TYPE) 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. 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, CONNECT THE POSITIVE LOCK® SO THAT THE
LEVER FACES YOU.
Figure C-2. Positive lock® connector
CONTROL PANEL ASSEMBLY 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. Disconnect the wire leads from panel components.
5. Remove the one (1) screw holding the control panel
assembly to the oven cavity front plate.
6. Slide the control panel assembly upward and remove it.
7. Now, individual components can be removed.
NOTE: 1. Before attaching a new key unit, wipe off remaining
adhesive on the control panel frame surfaces
completely with a soft cloth soaked in alcohol.
2. When attaching the key unit to the control panel
frame, adjust the upper edge and right edge of the
key unit to the correct position of control panel
frame.
3. Place the key unit firmly to the control panel frame
by rubbing with soft cloth not to scratch.
GRAPHIC SHEET AND MEMBRANE SWITCH REPLACEMENT
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 three (3) screws holding the control unit to the control panel frame. And remove the control unit by releasing
from tabs.
6. Remove the rubber connector from the long slit on the control panel frame.
7. Remove the graphic sheet from the control panel frame. (*See special note)
8. Remove away the membrane switch from the control panel frame. (*See special note)
12
R-508HS
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 graphic sheet from the control panel frame. (*See special note)
Installation
1. Remove remaining adhesive on the control panel frame surfaces with a soft cloth soaked in alcohol.
2. Make sure that the LCD sheet and the liquid crystal display in good condition.
3. Remove the backing paper from the new graphic sheet.
4. Adjust the upper edge and right edge of the graphic sheet to the large depression on the surface of the control panel frame.
5. Attach the graphic sheet to the control panel frame by rubbing with a soft cloth not to scratch.
6. Reinstall the control panel frame to the oven.
NOTE:
Do not touch the contact surface of the ribbon cable (edge) and the rubber connector with a finger directly not to be
oxidized.
If display digits are missing or scrambled, remove control unit and make sure that there is not any trash or foreign
substance on the contact surface of the rubber connector. Use an adhesive tape to clean the contact surface of the
rubber connector.
(* Heat gun will soften adhesive.)
Control panel frame
Ribbon cable
Liquid crystal
of membrane
display
switch
Contact
surface
Slit
Contact surface
Control panel frame
(Rear side)
Long slit
Rubber connector
Graphic
sheet
Figure C-XXX Graphic Sheet Replacement
TURNTABLE MOTOR 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.
13
5. Disconnect wire leads from turntable motor.
(See "Positive lock connector removal")
6. Remove one (1) screw holding turntable motor to oven
cavity.
7. Now the turntable motor is free.
8. After replacement, use the one (1) screw provided with the
TTM Kit, to attach the turntable motor cover.
R-508HS
COOLING FAN MOTOR REMOVAL
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. 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.
7. Hold the edge of the rotor of the fan motor by using a pair
of groove joint pliers.
CAUTION:
* Make sure that no metal pieces enter the gap between
the rotor and the stator of the fan motor because the
rotor is easily shaven by pliers and metal pieces may
be produced.
* Do not touch the pliers to the coil of the fan motor
because the coil may be cut or injured.
* Do not disfigure the bracket by touching with the
pliers.
8. Remove the fan blade from the shaft of the fan motor by
pulling and rotating the fan blade with your hand.
9. Now, the fan blade and the fan motor will be free.
Rear View
CAUTION:
* Do not reuse the removed fan blade because the hole
(for shaft) may be larger than normal.
INSTALLATION
1. Install the fan blade to the fan motor shaft according to the
following procedure.
2. Hold the center of the bracket which supports the shaft of
the fan motor on the flat table.
3. 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 disfigured.
* Make sure that the fan blade rotates smooth after
installation.
* Make sure that the axis of the shaft is not slanted.
5. Install the fan motor to the oven cavity back plate with the
two (2) screws.
6. Connect the wire leads to the fan motor, referring to the
pictorial diagram.
Side View
DOORSENSINGSWITCH/PRIMARYINTERLOCKSWITCHANDMONITORSWITCHREMOVAL
1.
2.
3.
4.
5.
6.
7.
Disconnect the power supply cord and remove outer case.
Open the door and block it open.
Discharge high voltage capacitor.
Disconnect wire leads from the switches.
Remove two (2) screws holding latch hook to oven flange.
Remove latch hook assembly from oven flange.
Push outward on the two (2) retaining tabs holding switch
in place.
8. Switch is now free.
At this time switch lever will be free, do not lose it.
Re-install
1. Re-install each switch in its place. The primary interlock/
monitor switches are in the lower position and the door
sensing switch is in the upper position.
2. Re-connect wire leads to each switch.
Refer to pictorial diagram.
14
R-508HS
3. Secure latch hook (with two (2) mounting screws) to oven
flange.
4. Make sure that the monitor switch is operating properly
and check continuity of the monitor circuit. Refer to chapter
"Test Procedure" and Adjustment procedure.
DOORSENSINGSWITCH/PRIMARY INTERLOCKSWITCHANDMONITORSWITCHADJUSTMENT
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, primary 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 primary 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.
hook, pushing and pulling upper portion of door toward
the oven face. Both results (play in the door) should be
less than 0.5mm.
2. The door sensing switch and primary interlock switch
interrupt the circuit before the door can be opened.
3. Monitor switch contacts close when door is opened.
4. Re-install outer case and check for microwave leakage
around door with an approved microwave survey meter.
(Refer to Microwave Measurement Procedure.)
Latch Heads
Door Sensing
Switch
Door
Monitor Switch
Switch Lever
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
Primary Interlock
Switch
Figure C-3. Latch Switch Adjustments
DOOR REPLACEMENT
REMOVAL
1. Disconnect the power supply cord.
2. Push the open button and open the door slightly.
3. Insert a putty knife (thickness of about 0.5mm) into the
gap between the choke cover and door frame as shown in
Figure C-4 to free engaging parts.
4. Pry the choke cover by inserting a putty knife as shown
Figure C-4.
5. Release choke cover from door panel.
6. Now choke cover is free.
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 with door frame is free from oven cavity.
Choke cover
Putty knife
Door frame
Figure C-4. Door Disassembly
15
R-508HS
Pin
9. Release the door panel from twelve (12) tabs of door
frame.
10.Remove the door panel from the door frame.
11.Now, door panel with sealer film is free.
12.Tear sealer film from door panel.
13.Now, door panel is free.
14.Slide latch head upward and remove it from door frame
with releasing latch spring from door frame and latch head.
15.Now, latch head and latch spring are free.
16.Remove door screen from door frame
17.Now, door frame is free.
RE-INSTALL
1. Re-install door screen to door frame.
2. Re-install the latch spring to the latch head. Re-install the
latch spring to the door frame. Re-install latch head to door
frame.
3. Re-install door panel to door frame by fitting twelve (12)
tabs of door frame to twelve (12) holes of door panel.
4. Put sealer film on door panel. Refer to “Sealer Film” about
how to handle new one.
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;
(A) Make sure that door sensing switch and primary
interlock switch are operating properly. (Refer to
chapter “Test Procedures”.).
(B) An approved microwave survey meter should be
used to assure compliance with proper microwave
radiation emission limitation standards.
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 (condensation)-tight or light-tight. Therefore,
occasional appearance of moisture, light or sensing
of gentle warm air movement around oven door is not
abnormal and do not of themselves indicate a leakage
of microwave energy from oven cavity.
Upper
Oven Hinge
Upper Oven
Hinge
Door assembly
Latch
heads
Lower
Oven Hinge
Lower Oven
Hinge
Pin
Choke Cover
Note:
When carring out any repair to the door, do not bend or
wrap the slit choke (tabs on the door panel assembly)
to prevent microwave leakage.
SEALER FILM
Installation
1. Put the adhesive tape on the backing film of the sealer
film as shown in Fig. C-6.
2. Tear the backing film by pulling the adhesive tape.
3. Put the pasted side of the sealer film on the door panel
Figure C-6. Sealer film
16
1
2
COM.
RY2
2
N.O.
N.O.
3
17
COM.
SECONDARY
INTERLOCK
RELAY
T1
4
5
GRY
COM.
PRIMARY
NO
INTERLOCK
SWITCH
WHT
WHT
WHT
E
WHT
TURNTABLE
MOTOR
BRN
Figure S-1. Pictorial Diagram
C/T
FUSE
RED
WHT
WHT
ORG
WHT
FAN MOTOR
MAGNETRON
POWER
TRANSFORMER
H.V. RECTIFIER
HIGH VOLTAGE
WIRE A
HIGH
VOLTAGE
CAPACITOR
HIGH VOLTAGE COMPONENTS
NOTE:
Hot (ORG) wire must be
connected to the terminal
with blue mark on the oven
light socket.
ORG
ORG
NOTE:
The neutral (WHT/GRY) wire must
be connected to the terminal with
"N" mark on the power supply
cord.
POWER SUPPLY
CORD 120V 60Hz
N
4
GRY
WHT
COM.
MONITOR
SWITCH
N.C.
RED
WHT
OVEN LAMP
AND SOCKET
WHT
WHT
H
3
BRN
ORG
RED
WHT
GRN
PNK
RED
2
RY1
1 PNK
CN-B
2 GRN
GRN
GRN
COM.
N.O.
RED
B
(POWER UNIT)
CN-B
to Oven cavity
F
DOOR
SENSING
SWITCH
D
CAVITY TEMP. FUSE
1
1
C
NOTE:
The grounding conductor of
the power supply cord has
been grounded by power
supply cord fixing screw.
The screw must always be
kept tight.
RED
R-508HS
5
6
A
A
B
C
G
H
6
D
E
F
G
H
DOOR
SENSING
SWITCH
B-2
B-1
COM
POWER
TRANSFORMER
AC(H) NO
COM
2
WH-1
AC(N) NO
OVEN LAMP
TURNTABLE
MOTOR
FAN MOTOR
1
WH-1
d
b
0.1uF
50V
C1
RY1
DU12D1-1P(M)-R
c
(J1)
VRS1
10G471K
a
T1
RY2
DU12D1-1P(M)-R
D7
NOTE
D31 1SS270A
D30 1SS270A
D8
1SS270A
1SS270A
C2
D6
Q4
DTA123JS
10u/35V
C5
DTD143ES
Q3
SP1
47uF/16V
DOOR
M
NL
COM
BZ
BL
-5 V
R12
15K
CPU UNIT
Q20
DTA143EKA
(F)
Q30
DTA143EKA
0.01uF25V
C14
R11
15K
R72
15K
P45 R71
15K
P41 R70
15K
P71 R69
15K
P70 R68
R74 - R78:270Kx5
AN4
AN5
C13
4.7K
AN6
(J16)
C60 - C64:330pF/50Vx5
AN7
G6
STOP
CLEAR
COOK
*START
*MINUTE
PLUS
G7
*
10K
10K
(G)
R15
R14
*When door is close,
DEFROST
15K
POPCORN
G8
15K
R110
10K
R13
25
G5
IC1
8
0
5
2
G4
POWER
LEVEL
TIMER
CLOCK
CLEAR
G3
CF1
Key can be operated.
1
4
7
REHEAT
24
INT0
P43
P44
P45
P46
P47
P50
P51
P52
P53
CNTR0
P55
P56
P57
AN0
AN1
AN2
AN3
AN4
AN5
AN6
AN7
VL2
80
VL1
1
64
41
(F)
CST4.00MGW
40
P17
P16
P15
P14
P13
P12
SEG25
SEG24
SEG23
SEG22
SEG21
SEG20
SEG19
SEG18
SEG17
SEG16
SEG15
SEG14
SEG13
SEG12
SEG11
SEG10
SEG9
SEG8
65
COOK DEFROST SENSOR AUTO%
NO.
LBS.
CUPS
KG OZ.
3
6
9
G2
KEY UNIT
G1
5
Figure S-3. Control Unit Circuit
(G)
15K
R41
0.1uF50V
C20
(J10)
0.01uF25V
15K
Q10
2SA1037AK
4.7K
C12
0.1uF50V
0.1uF/50V
C11
:IF NOT SPECIFIED 1/10W±5%
POWER UNIT
27 1/4 W
R4
Q2
2SA933AS
4.7K 1/4W
R5
510
1/2 W
JUMPER
WIER
1SS270A x2
D5
2200uF
25V
R3
C10
R2
Q11
DTA143EKA
R40
INT
00.01uF 25V
PA151DR
R6
R10
ZD10
4.7K
3.3K
1/4W
1K
UDZ4.3B
C4
COM3
COM2
COM1
COM0
COM1
COM2
15K
(J12)
(J13)
C64
LIQUID CRYSTAL DISPLAY
15K
(J11)
R78
R77
R76
R75
R74
4.7K
C63
P24
GND
RESET
3.6K
(J14)
(J15)
C62
P27
R67
20K
C61
P25
R65
(J17)
C60
P26
R66
SEG21
SEG20
SEG19
SEG18
SEG17
SEG16
SEG15
SEG14
SEG13
SEG12
SEG11
SEG10
P41
P40
15K
GND
4.7K
G9
G10
5
G11
P23
R63
4
G12
4
G13
R80
18
15K
3
1M
2
R64
SEG9
SEG8
SEG7
SEG6
SEG5
SEG4
SEG3
SEG2
SEG1
SEG0
VL3
COM0
COM1
COM2
COM3
AVSS
VREF
VCC
SEG0
SEG1
SEG2
SEG3
SEG4
SEG5
SEG6
SEG7
1
P22
H
R62
LD4 LD3 LD2 LD1
P71
P70
XIN
XOUT
VSS
P27
P26
P25
P24
P23
P22
P21
P20
G
P21
F
R61
E
15K
C
3
15K
A
P20
D
2
R60
1
15K
B
D1 - D4
1N4002x4
R-508HS
6
A
B
C
6
D
E
F
G
H
R-508HS
1
2
4
3
5
6
A
A
B
B
DIP
CHIP
SIDE
C
C
J3
CN-F
C10
R90
C4
1 2 3
LED
D31
CN-B
D
D
R3
R5
C5 R6
D8
WH-2
B1 2
E
Q1
Q4 SP1
Q3
DZ1
E C B
E C B
J1
E
Q2
E C B
D30
2
1
J5
J6
2
1
WH-2
J2
D5
T1
R4
E
D6
R2
R7
RY2
C1
R8
F
F
D1 D2
P
S
L1
D3 D4
VRS1
G
G
C2
D7
RY1
H
H
Figure S-5 . Printed Wiring Board of Power Unit
1
2
4
3
19
5
6
R-508HS
PARTS LIST
∆” may cause undue microwave exposure.
Note: The parts marked “∆
The parts marked “*” are used in voltage more than 250V. "§" MARK: PARTS DELIVERY SECTION.
REF. NO.
PART NO.
§
DESCRIPTION
1- 1
1- 2
1- 3
1- 4
1- 5
1- 6
1- 7
1- 8
1- 9
1-10
1-11
RC-QZB018MRE0
FH-DZB013MRY0
RLMPTA087WRZZ
RMOTEA346WRE0
FFS-BA019/KIT
QSW-MA085WRE0
QFS-TA014WRE0
RV-MZA293WRE0
RMOTDA252/KIT
RTRN-B075MRE0
FACCDB003MRE0
M
M
M
M
M
M
M
M
M
M
M
High voltage capacitor
High voltage rectifier assembly
Oven lamp/socket
Fan motor
Monitor switch (V-16G-2C25), C/T fuse (20A 250V AC) & Inst.
Primary interlock switch and door sensing switch (V-5230Q)
Cavity temperature fuse 150OC
Magnetron
Turntable motor
Power transformer
Power supply cord
2- 1
2- 2
2- 3
GDAI-B070MRP0
GLEGPB004MRF0
GCABUB130MRP0
M
M
M
Base plate
Foot
Outer case cabinet
333333-
GPNLCB041/KIT
HPNLFB008MRF0
PSHEPB128MRR0
FDECAB046MRK0
MSPRCA045WRE0
XEPSD30P06XS0
M
M
M
M
M
M
Control unit assy
Control panel sub assembly
Graphic sheet
Open button assy
Open button spring
Screw; 3mm x 6mm
Q'TY CODE
ELECTRIC PARTS
∆
1
1
1
1
1
2
1
1
1
1
1
AQ
AM
AD
AR
AF
AE
AF
BC
AL
BA
AM
1
4
1
AQ
AB
BA
CABINET PARTS
CONTROL PANEL PARTS
1
2
3
4
5
6
1
1
1
1
1
5
AZ
AQ
AF
AF
AA
AB
OVEN PARTS
4- 1
4- 2
4- 3
4- 4
4- 5
4- 6
4- 7
4- 8
4- 9
4-10
4-11
LBNDKB007MRP0
M
LANGTB059MRP0
M
PHOK-B018MRF0
M
MLEVPB016MRF0
M
PDUC-B125MRF0A M
NFANPB006MRE0
M
PDUC-B088MRF0
M
------------M
PCOVPB085MRP0
M
PPACGB014MRF0
M
PCUSU0464MRE0
M
H.V. Capacitor band
Chassis support
Latch hook
Switch lever
Magnetron duct
Fan blade
Fan duct
Oven cavity
(Not a replaceable part)
Waveguide cover
Turntable motor packing
Cushion
5 -1
5 -2
5 -3
5 -4
5 -5
5- 6
5- 7
5- 8
5- 9
5-10
CDORFB344MRK0A M
FCOV-B250MRK0
M
LSTPPB021MRF0
M
MSPRTA046WRE0
M
FDORFB075MRT0
M
PSHEPB016MRE0
M
GCOVHB047MRF0
M
LSTPPB045MRF0
M
JBTN-B152MRF0
M
MSPRTB022MRE0
M
Door assembly
Door frame assembly
Latch head
Latch spring
Door panel
Sealer film
Choke cover
Door stopper
Button (start/stop/minute)
Button spring
1
1
1
1
1
1
1
1
1
1
1
AB
AG
AF
AD
AE
AC
AC
-AV
AA
AC
1
1
1
1
1
1
1
1
3
3
BE
BC
AE
AB
AX
AD
AG
AA
AD
AC
DOOR PARTS
20
R-508HS
REF. NO.
PART NO.
§
FW-VZB125MRE0
FW-VZB217MRE0
FROLPB025MRK0
NTNT-A099WRE0
TCAUAB050MRR0
TCAUAB038MRR0
TINSEB361MRK0
QW-QZB016MRE0
M
M
M
M
M
M
M
M
DESCRIPTION
Q'TY CODE
MISCELLANEOUS
66666666-
1
2
3
4
5
6
7
8
Stop switch harness
Main wire harnes
Turntable support
Turntable tray
Monitor caution label
DHHS/Screw caution label
Operation manual
High voltage wire A
1
1
1
1
1
1
1
1
AF
AU
AN
AT
AA
AB
AD
AC
5
2
1
12
3
3
2
4
AA
AA
AA
AA
AA
AA
AB
AA
SCREWS,NUTS AND WASHERS
77777777-
1
2
3
4
5
6
7
8
LX-BZA041WRE0
LX-CZ0052WRE0
XHTSD40P12RV0
XOTSE40P12000
XCBSD30P08000
XHTSD40P08RV0
LX-CZA070WRE0
XOTSE40P12000
M
M
M
M
M
M
M
M
Special
Special
Screw :
Screw :
Screw :
Screw :
Special
Special
screw
screw
4mm x
4mm x
3mm x
4mm x
screw
screw
12mm
12mm
8mm
8mm
(Torx tamper proof screw)
HOW TO ORDER REPLACEMENT PARTS
To have your order filled promptly and correctly, please furnish the following information.
1. MODEL NUMBER
2. REF. NO.
3. PART NO.
4. DESCRIPTION
Order Parts from the authorized SHARP parts Distributor for your area.
Defective parts requiring return should be returned as indicated in the Service Policy.
21
R-508HS
2
1
4
3
6
5
OVEN AND CABINET PARTS
7-4
A
A
7-4
7-7
2-3
7-8
B
B
4-7
7-7
6-6
7-5
1-7
C
C
1-4
7-8
4-6
7-3
7-6
1-11
D
1-5
4-8
D
7-6
4-2
7-4
1-8
4-9
E
E
6-5
7-4
7-2
7-2
6-4
1-3
7-4
7-1
1-6
4-3
4-10
4-5
1-9
1-10
7-5
F
2-1
6-3
F
1-5
1-6
7-1
4-4
4-1
1-1
1-2
G
G
7-4
7-4
2-2
2-2
7-4
2-2
4-11
2-2
H
H
1
2
4
3
22
5
6
R-508HS
2
1
4
3
6
5
CONTROL PANEL PARTS
A
A
3-2
3-1
3-6
B
B
3-5
DOOR PARTS
3-4
3-3
C
C
5-8
5-1
5-6
5-7
D
D
5-2
5-5
E
E
5-3
5-4
5-9
5-10
F
F
MISCELLANEOUS
Items 5-9 & 5-10 are not included with assembly 5-1 or 5-2
6-1
6-2
G
G
6-8
Actual wire harness may be different from illustration.
H
H
1
2
4
3
23
5
6
R-508HS
PACKING AND ACCESSORIES
TOP PAD ASSEMBLY
DOOR PROTECTION SHEET
6-4 TURNTABLE TRAY
PLASTIC BAG
ON TOP OF THE OVEN
TRAY HOLDER
6-7 OPERATION MANUAL
IN
TO
TH
EO
N
VE
Y
VIT
CA
BOTTOM PAD ASSEMBLY
6-3 TURNTABLE SUPPORT
PACKING CASE
Non-replaceable items
24
R-508HS
COPYRIGHT © 2003 BY SHARP CORPORATION
ALL RIGHTS RESERVED.
No part of this publication may be reproduced, stored in retrieval systems, or transmitted in any form or by any means, electronic, mechanical, photocopying, recording,
or otherwise, without prior written permission
of the publisher.
2003 SHARP CORP. (4M2.00E) Printed in U.S.A
25