Sharp | R-308CW | Service manual | Sharp R-308CW Service manual

R-305CW
SUPPLEMENTAL SERVICE MANUAL
S2903R305CPW/
MICROWAVE OVEN
MODEL
NO.
LBS.
CUPS.
OZ.
COOK DEFOST
M IN
R-305CW
UT E PLUS
TO ADJUST QUANTITY
TOUCH PAD AGAIN
Casserole
Beverage
Baked
Potatoes
Fresh
Vegetables
Rolls/
Muffins
2
4
3
5
7
Power
Level
Stop
Clear
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.
U DEFROST
COMP
1 Ground Meat
2 Steaks/Chops
3 Chicken Pieces
1
Popcorn
6
8
9
0
Timer
Clock
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..)
START
This is a supplemental Service Manual for Model R-305CW. This model is quite similar to base
model R-308CW. Use this supplemental manual together with the Base Model Service Manual
(Refer No. is S1901R310CPW/) for complete operation, service information, 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
FOREWORD AND WARNING ............................................................................................................................... 2
PRODUCT SPECIFICATIONS .............................................................................................................................. 3
SCHEMATIC DIAGRAM ........................................................................................................................................ 4
TEST PROCEDURE .............................................................................................................................................. 5
COMPONENT REPLACEMENT AND ADJUSTMENT PROCEDURE .................................................................. 7
POWER UNIT CIRCUIT ........................................................................................................................................ 7
CPU UNIT CIRCUIT .............................................................................................................................................. 8
PRINTED WIRING BOARD ................................................................................................................................... 9
PARTS LIST ........................................................................................................................................................ 10
PACKING AND ACCESSORIES ......................................................................................................................... 11
SHARP CORPORATION
This document has been published to be used for after
sales service only.
The contents are subject to change without notice.
R-305CW
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 The 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-305CW
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.
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.
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.
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 run empty. To test for the
presence of microwave energy within a cavity, place a cup
of cold water on the oven turntable, close the door and set
the power to HIGH and set the microwave timer for two (2)
minutes. When the two minutes has elapsed (timer at zero)
carefully check that the water is now hot. If the water
remains cold carry out Before Servicing procedure and reexamine the connections to the component being tested.
When all service work is completed and the oven is fully
assembled, the microwave power output should be checked
and a microwave leakage test should be carried out.
1
R-305CW
SERVICE MANUAL
MICROWAVE OVEN
R-305CW
FOREWORD
This Manual has been prepared to provide Sharp Electronics Corp. Service Personnel with Operation and Service
Information for the SHARP MICROWAVE OVEN, R-305CW.
The model R-305CW is quite similar to base model R-308CW (Refer No. is S1901R310CPW/).
It is recommended that service personnel carefully study the entire text of this manual and the base model's manual so
that they will be qualified to render satisfactory customer service.
Check the interlock switches and the door seal carefully. Special attention should be given to avoid electrical shock and
microwave radiation hazard.
WARNING
Never operate the oven until the following points are ensured.
(A) The door is tightly closed.
(B) The door brackets and hinges are not defective.
(C) The door packing is not damaged.
(D) The door is not deformed or warped.
(E) There is no other visible damage with the oven.
Servicing and repair work must be carried out only by trained service personnel.
DANGER
Certain initial parts are intentionally not grounded and present a risk of electrical shock only during servicing.
Service personnel - Do not contact the following parts while the appliance is energized;
High Voltage Capacitor, Power Transformer, Magnetron, High Voltage Rectifier Assembly, High Voltage
Harness;
If provided, Vent Hood, Fan assembly, Cooling Fan Motor.
All the parts marked “*” on parts list are used at voltages more than 250V.
Removal of the outer wrap gives access to voltage above 250V.
All the parts marked “∆” on parts list may cause undue microwave exposure, by themselves, or when they are
damaged, loosened or removed.
SHARP ELECTRONICS CORPORATION
SHARP PLAZA, MAHWAH,
NEW JERSEY 07430-2135
2
R-305CW
SPECIFICATION
ITEM
Power Requirements
Power Output
Case Dimensions
Cooking Cavity Dimensions
1.1 Cubic Feet
DESCRIPTION
120 Volts / 12.5 Amperes
60 Hertz
Single phase, 3 wire grounded
1000 watts (IEC-705 TEST PROCEDURE)
Operating frequency of 2450MHz
Width 20-1/2"
Height 11-7/8"
Depth 16-7/8"
Width 14-3/4"
Height 8-3/4"
Depth 15-3/4"
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
MINUTE PLUS pads
INSTANT START pads (Casserole, Beverage, Popcorn, etc.)
COMPU DEFROST pads
Number selection pads
Power Level pad, Timer/Clock pad
Stop/Clear pad, START pad
Oven Cavity Light
Yes
Safety Standard
UL Listed
FCC Authorized
DHHS Rules, CFR, Title 21, Chapter 1, Subchapter J
3
R-305CW
TOUCH CONTROL PANEL
NO.
LBS.
CUPS.
OZ.
COOK DEFOST
M IN U
T E P L US
TO ADJUST QUANTITY
TOUCH PAD AGAIN
Casserole
Beverage
Popcorn
Baked
Potatoes
Fresh
Vegetables
Rolls/
Muffins
U DEFROST
COMP
1 Ground Meat
2 Steaks/Chops
3 Chicken Pieces
1
2
3
4
5
6
7
8
9
Power
Level
0
Timer
Clock
Stop
Clear
SCHEMATIC
NOTE: CONDITION OF OVEN
1. DOOR CLOSED
2. CLOCK APPEARS ON DISPLAY
MONITOR
FUSE 20A
NOTE: "
THERMAL
CUT-OUT (OVEN)
START
" indicates components with potential above 250V.
THERMAL
CUT-OUT (MG.)
COM.
N.O.
A2
(RY-2)
(RY-1)
A1
POWER
TRANSFORMER
CONTROL UNIT
N.O.
COM.
SH-B
GRN
120V AC
60 Hz
SH-A
DOOR
SENSING
SWITCH
TTM
OL
OVEN
LAMP
TURNTABLE
MOTOR
CAPACITOR 0.94µF
AC 2200V
PRIMARY
INTERLOCK
RELAY
MONITOR
SWITCH
FM
RECTIFIER
MAGNETRON
FAN
MOTOR
SECONDARY
INTERLOCK
SWITCH
Figure O-1. Oven Schematic-Off Condition
4
R-305CW
TEST PROCEDURES
PROCEDURE
LETTER
A
COMPONENT TEST
MAGNETRON ASSEMBLY TEST
1.
2.
3.
4.
5.
6.
7.
8.
9.
Disconnect the power supply cord, and then remove outer case.
Open the door and block it open.
Discharge high voltage capacitor.
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.
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.
Reconnect all leads removed from components during testing.
Reinstall the outer case (cabinet).
Reconnect the power supply cord after the outer case is installed.
Run the oven and check all functions.
MICROWAVE OUTPUT POWER
The following test procedure should be carried out with the microwave oven in a fully assembled
condition (outer case fitted).
HIGH VOLTAGES ARE PRESENT DURING THE COOK CYCLE, SO EXTREME CAUTION SHOULD
BE OBSERVED.
Power output of the magnetron can be measured by performing a water temperature rise test. This test
should only be used if above tests do not indicate a faulty magnetron and there is no defect in the following
components or wiring: silicon rectifier, high voltage capacitor and power transformer. This test will require
a 16 ounce (453cc) measuring cup and an accurate mercury thermometer or thermocouple type
temperature tester. For accurate results, the following procedure must be followed carefully:
1. Fill the measuring cup with 16 oz. (453cc) of tap water and measure the temperature of the water with
a thermometer or thermocouple temperature tester. Stir the thermometer or thermocouple through
the water until the temperature stabilizes. Record the temperature of the water.
2. Place the cup of water in the oven. Operate oven at POWER 10(HIGH) selecting more than 60
seconds cook time. Allow the water to heat for 60 seconds, measuring with a stop watch, second hand
of a watch or the digital read-out countdown.
3. Remove the cup from the oven and again measure the temperature, making sure to stir the
thermometer or thermocouple through the water until the maximum temperature is recorded.
4. Subtract the cold water temperature from the hot water temperature. The normal result should be 30.7
to 57.1˚F(17.1 to 31.7˚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 output (high
rise in water temperature) which would reduce cooking time. Because cooking time can be adjusted
to compensate for power output, the magnetron tube assembly should be replaced only if the water
temperature rise test indicates a power output well beyond the normal limits. The test is only accurate
if the power supply line voltage is 120 volts and the oven cavity is clean.
B
POWER TRANSFORMER TEST
1.
2.
3.
4.
Disconnect the power supply cord, and then remove outer case.
Open the door and block it open.
Discharge high voltage capacitor.
Disconnect the primary input terminals and measure the resistance of the transformer with an
ohmmeter. Check for continuity of the coils with an ohmmeter. On the R x 1 scale, the resistance of
the primary coil should be less than 1 ohm and the resistance of the high voltage coil should be
approximately 91.1 ohms; the resistance of the filament coil should be less than 1 ohm.
5. Reconnect all leads removed from components during testing.
6. Reinstall the outer case (cabinet).
5
R-305CW
TEST PROCEDURES
PROCEDURE
LETTER
COMPONENT TEST
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.)
J
KEY UNIT TEST
1.
2.
3.
4.
5.
6.
7.
8.
Disconnect the power supply cord, and then remove outer case.
Open the door and block it open.
Discharge high voltage capacitor.
If the display fails to clear when the STOP/CLEAR pad is depressed, first verify the flat ribbon cable
is making good contact, verify that the door sensing switch (stop switch) operates properly; that is the
contacts are closed when the door is closed and open when the door is open. If the door sensing
switch (stop switch) is good, disconnect the flat ribbon cable that connects the key unit to the control
unit and make sure the door sensing switch is closed (either close the door or short the door sensing
switch connecter). Use the Key unit matrix indicated on the control panel schematic and place a
jumper wire between the pins that correspond to the STOP/CLEAR pad making momentary contact.
If the control unit responds by clearing with a beep the key unit is faulty and must be replaced. If the
control unit does not respond, it is faulty and must be replaced. If a specific pad does not respond,
the above method may be used (after clearing the control unit) to determine if the control unit or key
pad is at fault.
Reconnect all leads removed from components during testing.
Re-install the outer case (cabinet).
Reconnect the power supply cord after the outer case is installed.
Run the oven and check all functions.
G8
G7
G6
G5
G4
G3
G9
5
4
3
2
1
MINUTE
PLUS
G10
0
9
8
7
6
Fresh
vegetables
START
Timer
Clock
G11
G12
BEVERAGE
Power
Level
Casserole POPCORN
Stop
Clear
Baked
potatoes
G2
G1
Rolls/
muffins
COMPU
DEFROST
G13
G14
L
COMPU DEFROST TEST
WARNING : The oven should be fully assembled before following procedure.
(1) Place one cup of water in the center of the turntable tray in the oven cavity.
(2) Close the door, touch the " COMPU DEFROST " pad twice.
(3) Touch the Number pad " 5 " and then touch the " START " pad.
(4) The oven is in Compu Defrost cooking condition.
(5) The oven will operate as follows
WEIGHT
0.5lb
1ST STAGE
LEVEL
TIME
60%
45sec.
2ND STAGE
LEVEL
TIME
40%
20sec.
(6) If improper operation is indicated, the control unit is probably defective and should be checked.
6
R-305CW
COMPONENT REPLACEMENT AND ADJUSTMENT PROCEDURE
MAGNETRON 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 wire leads from magnetron.
5. Remove the four (4) screws holding chassis support to
magnetron, oven cavity front flange, oven cavity back
plate and fan duct.
6. Remove the chassis support from oven.
7. Carefully remove the four (4) screws holding magnetron
to waveguide flange.
8. Lift up magnetron with care so that magnetron antenna
is not hit by any metal object around antenna.
9. Now, the magnetron is free.
2
1
Re-install
1. Re-install the magnetron to waveguide flange with the
four (4) screws.
2. Insert the two (2) tabs of the chassis support to the oven
cavity front plate and the back plate.
3. Hold the chassis support to the oven cavity back plate,
oven cavity front flange, magnetron, and the fan duct
with the four (4) screws.
4. Re-install the chassis support to magnetron with the one
(1) screw.
5. Reconnect the wire leads to the magnetron. Refer to
"PICTORIAL DIAGRAM".
6. Re-install outer case and check that the oven is operating
properly.
CAUTION: WHEN REPLACING MAGNETRON, BE SURE
THE R.F. GASKET IS IN PLACE AND MOUNTING SCREWS ARE TIGHTENED SECURELY
4
3
6
5
A
A
A1
AC
A2
C3
GND
B
C5
VR
C
C9
INT
NO
C4
BUZZER
COM
C6
OVEN LAMP
TURNTABLE
MOTOR
FAN MOTOR
NO
C8
MICRO
COM
C7
(BROWNER)
SH-A
C2
NC
SH-B
C1
DOOR
+
d
a
–
b
C1 2200µ/25v
B
VRS1
CN-A
CN-C
9PIN LEAD WIRE
HARNESS
D1
S1NB10
10G471K
T1
(J1)
SP1 PKM22EPT
C
c
D
OVEN LAMP
TURNTABLE
MOTOR
FAN MOTOR
D
RY1
E
AC
E
RY2
MICRO
F
G
F
DOOR
SWITCH
G
H
H
Figure S-2. Power Unit Circuit
1
2
4
3
7
5
6
C-2
C-4
C-9
C-5
DOOR
MICRO
(BROWNER)
: IF NOT SPECIFIED 1/10W ± 5%
Q22
DTA123JKA
–
+
–
C20 0.1µ/50v
Q30
DTA143EKA
Q10
DTA143EKA
R41 15k
Q20
DTA143EKA
Q1
2SA1037AK
R4 560 1/2w
Q21
DTD143EKA
LD1 LD2 LD3 LD4
D40
MA152WA
D20
MA152WA
NOTE
C-1
C-8
C-7
OVEN LAMP
TURNTABLE
C-6
MOTOR
FAN MOTOR
NC
BUZZER
INT
VR
C1 0.1µ/50v
R30 3.3k
R2 4.7k
10µ
/35v
+
5
C60-65 330pF/50v
80
25
G14
G13
G12
SEG 2
SEG 1
SEG 4
SEG 3
IC1
IZA945DR
SEG 5
SEG 6
Baked
potatoes
7
2
Stop
Clear
8
9
41
G5
40
SEG8
SEG9
SEG10
SEG11
SEG12
SEG13
SEG14
SEG15
SEG16
SEG17
SEG18
SEG19
SEG20
SEG21
P06
P07
P10
P11
P12
P13
P14
P15
P16
P17
64
SEG 9
Casserole POPCORN
3
4
SEG 8
65
SEG10
Power
Level
G6
G7
KEY UNIT
BEVERAGE
0
G10
G11
5
R9 4.7k R8 4.7k R7 4.7k
G9
G8
R90 15k
24
VL2
VL1
AN7
AN6
AN5
AN4
P63
AN2
AN1
AN0
P57
P56
P55
CNTR0
P53
P52
P51
P50
P47
P46
P45
P44
P43
INT0
1
SEG18
SEG16
SEG15
SEG14
G3
Fresh
vegetables
Timer
Clock
1
6
START
SEG13
MINUTE
PLUS
SEG17
G4
COMPU
DEFROST
G2
R60
15k
COM1
Rolls/
muffins
G1
1
5
6
Figure S-3. CPU Unit Circuit
R73 15k
R72 15k
R71 15k
R70 15k
CF1 CST4.00MGW
(J17) 4.7k
(J15) 4.7k
(J13) 4.7k
(J11) 4.7k
25
DEFROST
4
R69 15k
R68 15k
(J16)
(J14)
(J12) 12kF
(J10)
Q2
2SA1037AK
COOK
SEG12
SEG11
R1 82
C10
0.1µ
/50v
C21
R3 4.7k
R40
NO.
LBS.
CUPS
OZ.
AUTO
SEG19
C-3
4.7k
C2 47µ/16v
R10 15k
C40
0.01µ
/25v
C3 0.01µ/25v
C11 0.01µ/25v
R79 270k
R5 1k
ZD1
UDZ4.3B
R78 270k
R77 270k
R76 270k
R75 270k
R74 270k
SEG 7
VL3
COM0
COM1
COM2
COM3
AVSS
VREF
VCC
SEG0
SEG1
SEG2
SEG3
SEG4
SEG5
SEG6
SEG7
C4
0.01µ/25v
R6 15k
LIQUID CRYSTAL DISPLAY
SEG20
GND
R80
8
R67
15k
4
R66
15k
3
R65
15k
H
1M
C
P41
P40
RESET
P71
P70
XIN
XOUT
VSS
P27
P26
P25
P24
P23
P22
P21
P20
2
3
C65
COM3
G
SEG21
F
SEG22
1
2
R64
15k
1
C64
C63
C62
C61
C60
COM2
E
R63
15k
D
R62
15k
A
R61
15k
B
CPU UNIT
R-305CW
6
A
B
C
D
E
F
G
H
R-305CW
2
1
4
3
6
5
A
A
B
B
SW (GREEN)
CN - C
2
1
9
1
C
D1
CN - B
SH - B
C1
SH - A
(D2)
DIP
C
(D3)
(D4)
SP1
DU
D
(J1)
OM
D
7
AC
1
OL
TTM FM
S
P
2
F
RY1
4
3
E
2
T1
VRS1
1
CN - A
E
1
(XA)
AC
DU
OM
OM
DU
VH
F
F
BROWNER
RY3
RY2
MICRO
G
G
H
H
Figure S-4. Printed Wiring Board of Power Unit
1
2
4
3
9
5
6
R-305CW
PARTS LIST
Note: The parts marked “∆” may cause undue microwave exposure.
The parts marked “*” are used in voltage more than 250V.
REF. NO.
PART NO.
DESCRIPTION
Q'TY
CODE
2
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
AH
AH
AS
AL
AP
AV
AP
AX
AV
BK
AV
AH
AG
AE
AU
AS
AP
BP
1
1
2
1
AZ
AX
AC
AH
1
1
1
1
1
1
1
2
1
1
1
1
1
1
1
1
1
1
4
BA
AC
AW
AD
AD
AE
AG
AN
AG
AP
AE
BA
BD
AY
AF
AB
AE
AK
AA
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
AU
AF
AQ
AD
AL
BA
-AX
AH
AG
AG
AH
AC
AE
AG
AF
AB
AC
ELECTRIC PARTS
*
*
*
∆*
*
1- 1
1- 2
1- 3
1- 4
1- 5
1- 5
1- 6
1- 7
1- 7
1- 8
1- 9
1-10
1-11
1-11
1-12
1-12
1-13
1-14
QSW-MA137WRE0
QFSHDA009WRE0
FFS-BA023WRK0
RTHM-A078WRE0
FACCDA081WRE0
FACCDA082WRE0
FH-DZA088WRK0
RC-QZA173WRE0
RC-QZA211WRE0
RV-MZA288WRE0
RMOTEA383WRE0
QSOCLA021WRE0
RLMPTA068WRE0
RLMPTA030WRE0
RMOTDA161WRE0
RMOTDA211WRE0
RTHM-A080WRE0
RTRN-A580WRE0
2nd interlock switch / door sensing switch
Fuse holder
Monitor fuse and monitor switch assembly
Thermal cut-out 125 deg.
Power supply cord
Power supply cord (Interchangeable)
High voltage rectifier assembly
High voltage capacitor
High voltage capacitor (Interchangeable)
Magnetron
Fan motor
Oven lamp socket
Oven lamp
Oven lamp (Interchangeable)
Turntable motor
Turntable motor (Interchangeable)
Thermal cut-out 145 deg.
Power transformer
CABINET PARTS
2222-
1
2
3
4
GCABUA690WRP0
GDAI-A316WRW0
GLEGPA074WRE0
GLEGPA077WRF0
Outer case cabinet
Bottom plate
Foot
Leg
3- 1
3- 1A
3- 1B
3- 1C
3- 1D
C1
D1
RY1-2
SP1
T1
VRS1
3- 2
3- 3
3- 3-1
3- 4
3- 5
3- 6
3- 7
3- 8
CPWBFA821WRK0
QCNCMA446DRE0
FW-VZA250DRE0
FW-VZA195DRE0
FW-VZA197DRE0
RC-EZA333DRE0
RSRCDA013DRE0
RRLY-A114DRE0
RALM-A014DRE0
RTRNPA110DRE0
RH-VZA032DRE0
DPWBFB914WRK0
FPNLCB429WRK0
FUNTKA929WRE0
JBTN-B099WRF0
MSPRCA050WRE0
PSHEPA588WRE0
LHLD-A202WRF0
XEPSD30P08XS0
Power unit
2-pin connector (CN-A)
9pin wire harness (CN-C)
Switch harness A (SH-A)
Switch harness B (SH-B)
Capacitor
2200 uF 25V
Diode bridge (S1NB10)
Relay (DU12D1-1P(M)-R)
Buzzer (PKM22EPT)
Transformer
Varistor (10G471K)
CPU unit
Control panel frame with key unit
Key unit
Open button
Open button spring
LED sheet
LCD holder
Screw; 3mm x 8mm
4- 1
4- 2
4- 3
4- 4
4- 5
4- 6
4- 7
4- 8
4- 9
4-10
4-11
4-12
4-13
4-14
4-15
4-16
4-17
4-18
PDUC-A724WRF0
PPACGA084WRF0
PHOK-A114WRF0
LBNDKA099WRW0
NFANJA029WRE0
PDUC-A725WRP0
*************
LANGFA192WRP0
PCUSGA321WRP0
PCUSUA270WRP0
MLEVPA233WRF0
NCPL-A045WRF0
PCUSUA511WRP0
PCOVPA349WRE0
PCUSGA339WRP0
PCUSGA399WRE0
PCUSUA512WRP0
PCUSUA126WRE0
Air separater
TTM packing
Latch hook
Capacitor holder
Fan blade
Fan duct
Oven cavity (Not a replaceable part)
Chassis support
Cushion
Cushion
Switch lever
Coupling
Cushion
Waveguide cover
Cushion
Cushion
Cushion
Cushion
CONTROL PANEL PARTS
OVEN PARTS
∆
∆
10
R-305CW
REF. NO.
PART NO.
DESCRIPTION
Q'TY
CODE
1
1
1
1
1
1
4
5
1
BD
AH
AX
AQ
AG
AC
AA
AB
AS
1
1
1
1
1
1
1
1
1
1
AQ
AR
AQ
AU
AF
AB
AC
AB
AD
AC
9
1
2
1
5
15
1
2
AA
AA
AA
AA
AA
AA
AA
AC
DOOR PARTS
∆ 5- 1
∆
∆
55555555-
2
3
4
5
6
7
8
9
FDORFA332WRT0
PSHEPA382WRE0
GWAKPA610WRR0
HPNL-A716WRR0
LSTPPA188WRF0
MSPRTA187WRE0
XCPSD40P08000
PCUSUA504WRP0
GCOVHA405WRF0
Door panel
Sealer film
Door frame
Door screen
Latch head
Latch spring
Screw : 4mm x 8mm
Cushion
Choke cover
6666666666-
1
2
2
3
4
5
6
7
8
9
FROLPA079WRK0
NTNT-A079WRE0
NTNT-A084WRE0
FW-VZB723WRE0
QW-QZA150WRE0
PZET-A012WRE0
TCAUAA166WRR0
TCAUAA200WRR0
TINSEA791WRR0
TCAUAA240WRR0
Turntable support
Turntable tray
Turntable tray (Interchangeable)
Main wire harness
High voltage wire B
Terminal insulator
DHHS caution label
Monitor caution label
Instruction book
Screw caution
77777777-
1
2
3
4
5
6
7
8
XHPSD40P08K00
XHPSD30P06000
XHTSD40P08RV0
XHTSD40P12RV0
XOTSD40P12RV0
XOTSD40P12000
XOTSE40P08000
LX-CZA070WRE0
Screw :
Screw :
Screw :
Screw :
Screw :
Screw :
Screw :
Special
MISCELLANEOUS
*
SCREWS,NUTS AND WASHERS
4mm x
3mm x
4mm x
4mm x
4mm x
4mm x
4mm x
screw
8mm
6mm
8mm
12mm
12mm
12mm
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.
TOP PAD ASSEMBLY
PACKING AND ACCESSORIES
FPADBA395WRK0
DOOR PROTECTION SHEET
SPADPA204WRE0
PLASTIC BAG
SSAKHA034WRE0
6- 8
INSTRUCTION BOOK
& PRINTING MATTER
6- 2
TURNTABLE TRAY
BOTTOM PAD ASSEMBLY
6- 1 TURNTABLE SUPPORT
FPADBA396WRK0
TRAY PACK
INTO THE
OVEN CAVITY
SPADFA451WRE0
Not replaceable items.
11
PACKING CASE
SPAKCD229WRE0
R-305CW
2
1
4
3
OVEN AND CABINET PARTS
6
5
7-5
2-1
4-13
7-8
A
A
7-5
6-7
4-10
7-1
B
B
7-8
1-10
4-17
1-11
6-6
1-4
1-8
7-7
C
C
4-7
7-6
7-3
6-9
1-5
D
D
7-4
4-18
7-1
4-12
4-3
4-15
1-13
E
1-2
4-14
6-2
4-4
4-2
4-11
4-8
7-6
1-3
1-12
7-3
4-5
1-1
F
7-6
1-14
7-1
6-1
7-6
7-2
1-6
7-5
E
1-7
1-1
4-9
7-5
7-1
F
4-1
2-2
4-16
4-6
2-4
1-9
G
G
7-6
2-3
7-6
H
H
7-6
7-6
7-6
2-3
1
2
4
3
12
5
6
R-305CW
2
1
4
3
6
5
3-2
CONTROL PANEL PARTS
A
A
3-8
3-7
3-3
3-8
3-6
B
B
3-1
DOOR PARTS
3-3-1
C
C
5-9
5-7
3-4
5-2
3-5
D
5-7
D
5-1
5-8
5-7
E
E
5-3
5-7
5-8
5-8
5-8
F
F
5-5
5-4
5-6
G
G
MISCELLANEOUS
6-3
(CAPACITOR)
6-4
H
H
6-5
Actual wire harness may be different from illustration.
1
2
4
3
13
5
6
R-305CW
COPYRIGHT © 1999 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.
'99 SHARP CORP. (1S2.530E) Printed in U.S.A
14
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