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R-4A54B

Sharp R-4A54, R-4A54B Service Manual

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Page 1
SHARF’ SERVICE MANUAL
S8206R4A54PJZ
MICROWAVE OVEN
Photo R-4A54
R-4A54B
In interests of user-safety the oven should be restored to its original
condition and only manufacturer original spare parts must be used.
This is a supplemental Service Manual for Modei R-4A54 etc. Those models are quite similar to Base Model R-4A53 (Refer No. is S7106R3A53PJZ).
Use this supplemental manual together with the Base Model Service Manual. Refer to the Base Model Service Manual for complete operation, service information, etc.
CRD17101lJ1
TABLE OF CONTENTS
GENERAL IMPORTANT INFORMATION
Page
......................................................................................................
1
CAUTION, MICROWAVE RADlATlON,WARNING
......................................................................................
1
PRODUCT SPECIFICATIONS
......................................................................................................................... 2
APPEARANCE VIEW
........................................................................................................................................ 3
SERVICING ........................................................................................................................................................
4
TEST PROCEDURE
...........................................................................................................................................
5
TOUCH CONTROL ASSEMBLY
COMPONENT
.....................................................................................................................
8
REPLACEMENT AND ADJUSTMENT PROCEDURE .....................................................
WIRING DIAGRAM
13
.......................................................................................................................................
PICTORIAL DIAGRAM
15
..................................................................................................................................
CONTROL PANEL CIRCUIT
17
.........................................................................................................................
PRINTED WIRING DIAGRAM
19
PARTS LIST
..................................................................................................................... 20
....................................................................................................................................................
21
SHARP CORPORATION
Page 2
R -4A54 R-4A54B
Page 3
R -4A54 R -4A54B
SERVICE MANUAL
SHARP
MICROWAVE OVEN
R-4A54/ R-4A54B
GENERAL IMPORTANT INFORMATION
This Manual has been prepared to provide Sharp Corp. Service engineers with Operation and Service Information.
It is recommended that service engineers carefully study the entire text of this manual and base model manual, so they will be qualified to render satisfactory customer service.
fRD36106U)
CAUTION
MICROWAVE RADIATION
-
Service engineers should not be exposed to the micro­wave energy which may radiate from the magnetron or other microwave generating devices if it is improperly
used or connected. All input and output microwave connections, waveguides, fianges and gaskets must be secured. Never operate the device without a microwave energy absorbing load attached. Never look into an open waveguide or antenna while the device is ener­gized.
-
(RD36203U)
WARNING
I
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.
I (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.
I
Servicing and repair work must be carried out only by
’
trained service engineers. All the parts marked “*‘I
more than 250V.
on parts list are used at voltages
(RD51110u)
SHARP CORPORATION
OSAKA, JAPAN
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PRODUCT SPECIFICATIONS
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TOUCH CONTROL PANEL
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PARTS L,ST
(RD37201 U)
Page 4
R -4A54 R -4A548
PRODUCT SPECIFICATIONS
SPECIFICATION
ITEM
Power Requirements
Power Consumption Power Output
Outside Dimensions
Cooking Cavity Dimensions
Turntable diameter
Control Complement
I
DESCRIPTION
/ 240 Volts(Australia)/230-240 Volts(New Zealand) / 50 Hertz I Single phase, 3 wire earthed
/ 1400w 1 750 watts nominal of RF microwave energy (AS 2895 1986)
’ 9OOW watts nominal of RF microwave energy (IEC-705-I 988)
Operating frequency of 2450M Hz
1 Width 550mm
Height 312mm
/ Depth 420mm / Width 381 mm
1 Height 211 mm 1 Depth 41 I mm
/ 360mm I j Touch Control System
i Ciock( I:00 - 12:59 ) 1 Timer (0 - 99 minutes 99 seconds ) i Microwave Power for Variable Cooking
Set Weight
/
Repetition Rate;
HIGH
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Full power throughout the cooking time
MEDIUM
HIGH . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
approx. 70% of Full Power
I
MEDIUM
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
approx. 50% of Full
Power
I
MEDIUM LOW
. ..*.................................... approx. 30% of Full Power
!
LOW . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
approx. 10% of Full
Power 1 INSTANT ACTION j SERVE QUANTITY pads / NUMBER pads I EASY DEFROST i AUTO START /CLOCK
INSTANT COOK/START / STOP CLEAR j POWER LEVEL j AUTO COOK j MEMORY
! Approx. 17.0 kg
NOTE:
Numbers and letters shown after sentences such as “RD44101 U” are for factory use only.
2
Page 5
R -4A54 R-4A540
APPEARANCE VIEW
1. Ventilation
openings
2. Oven lamp
3. Hinges
4. Safety door latches
5. See through door
6. Coupling
7. Door open button
TOUCH CONTROL PANEL
.-a--- _.- _ --.-_. _ _ _-
/‘wrA ,VT A&riO,Y
8. Touch Control Panel
9. Digital readout
10. Waveguide cover
11. Access cover for oven lamp replacement
12. Power supply cord
INSJANJ ACllUN PADS Press once to cook or reheat 8 popular menu.
Frozen Dinner
AUTO Press to select Auto Cook
mode.
AUTO COOK MENUS-
NUMBER PADS Press to enter cooking times, clock time, weight or quantity of food, or to select the Auto Cook menus.
POWER LEVEL PAD Press to select microwave power setting. If not pressed, HIGH is auto-
matically selected.
STOP/CLEAR PAD Press to erase during
pro­gramming. Press once to stop operation of oven during cooking; press twice to cancel cooking pro-
gramme.
1 serve 1 1
G-?
Bacon 1 serve ~
-
I
Rice 8 Pasta
‘12 cup
Reheal Bevecage/Soup
1 cup
Chicken Pieces
1 serve
Casseroles
1 serve
.
I
d
1 Fresh vegetables
2 Frozen vegetabtes 3 Jackel poloto
4 Roasl lamb
5 Seasoned roast
-2 SERVE Q(uARTIT-Y PAD To cook two serves, press this pad prior to pressing the IN­STANT ACTION pad.
-3 SERVE QUANTITY PAD Tocookthreeserves. press this pad prior to pressing the IN­STANT ACTION pad.
-4 SERVE QUANTITY PAD
To cook four serves, press this pad prior to pressing the IN­STANT ACTION pad.
-EASY DEFROST PAD
Press to defrost meat by en­tering weight.
*MORE (A). LESS (v’) PADS
Press to increase/decrease the time in one minute increments during cooking or to alter the doneness for the Auto Cook, Instant Action or Easy Defrost modes.
,INSTANT COOK/START PAD Press once to cook for 1 minute at HIGH or increase by 1 minute multiples each time $his pad is pressed during cooking. Press to start oven after setting programmes.
3
Page 6
R-4A!i4 R-4AMB
SERVICING
WARNING TO SERVICE PERSONNEL
Microwave ovens contain circuitry capable of producing very high voltage and current, contact with any part
of the high voltage circuit will result in electrocuition.
REMEMBER TO CHECK 3D
: 3
Disconnect the supply. Door opened, and wedged open. Discharge high voltage capacitor.
WARNING AGAINST THE CHARGE OF THE
HIGH-VOLTAGE CAPACITOR
The high-voltage capacitor remains charged about 60 seconds after the oven has been switched off. Wait for 60 seconds and then short-circuit
the connection of the high-voltage capacitor (that is, of the con­necting lead of the high-voltage rectifier) against the chassis with the use of an insu­lated screwdriver.
Sharp recommend that wherever possible fault-finding is carried out with the supply discon­nected. It may in, some cases, be necessary to connect the supply after the outer case has been removed, in this event carry out 3D checks and then disconnect the leads to the primary of the power transformer. Ensure that these leads remain isolated from other components and the oven chassis. (Use insulation tape if necessary.) When the testing is completed carry out 3D checks and reconnect the leads to the primary of the power transformer.
REMEMBER TO CHECK 4R
1) Reconnect all leads removed from components during testing.
2) Replace the outer case (cabinet).
3) Reconnect the supply.
4) Run the oven. 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 microwave timer for two (2) minutes. Set the power level to
HIGH and push the START button. When the two minutes has elapsed (timer at zero) carefully check that the water is now hot. If the water remains cold carry out 3D checks 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 a microwave leakage test carried out.
(RD81001 H)
4
Page 7
R -4A54 R-4A54B
TEST PROCEDURES
PROCEDURE
LETTER COMPONENT TEST
MICROWAVE OUTPUT POWER (2 LITRE WATER LOAD)
The following test procedure should be carried out with the microwave oven in a fully assembled condition (with ou?er case fitted). Microwave output power from the magnetron can be measured by way of substitution, i.e. it can be measured by using a water load how much it can be absorbed by the water load. To measure the microwave output power in the microwave oven, the relation of calorie and watt is used. On the other hand, if the temperature cf the water with V(ml) rises
AT (“C) during this microwave heating period, the calorie of the water is V x AT.
The formula is as follows;
P=
8330 x AT
t
Our condition for the water load is as follows:
Room temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . .
23 +2”C
Water load
. . . ...2000 ml Initial temperature
Power supply Voltage . . . . . . . . . . . . . Rated voltage
. . . . . . . 23+ 1 “C
Heating time . . . . . . 1 min. 51 sec.
P = 75 x AT
Measuring method:
A) Use two 1 litre Pyrex beakers with a diameter of approximately of 12cms.
B) Place 1 litre of 23°C water in each beaker.
C) Mark Tl on the one beaker and mark T2 on the other one. And stir the water and measure the
temperature of water the thermometer and note them. The graduation of the thermometer must
be scaled by 0.1 “C at minimum and an accurate mercury thermometer is recommended. D) Place the two beakers as touching each other in the centre of the cavity. E) Set the timer to I minute and 51 seconds at 100% power (the time required to raise the water
temperature 10 degrees C.) F) The time must be measured with stopwatch or wristwatch.
G) After 1 minute and 51 seconds stop the oven by opening the door.
H) Remove the two beakers from the oven and measure the temperature of the water by stirring
the water with the thermometer and noting the readings.
Example
/
Initial temperature
- . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Tl = 23°C T2 =
Temperature after 1 min. 51 set
24°C
.
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . I . . . .
Tl = 33°C
T2
= 34°C
I
Temperature difference Cold-Warm
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . ..*...........
Mean temperature rise AT
AT1 = 10°C AT2 = 10°C
! I
. . . . . . . .
Measured output power
AT = (AT1 +AT2) /‘2 = (103C + 10°C) / 2 = 10°C
I /
The equation is “P= 75 x AT”
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
P=
75 x 10°C = 750
Watts
NOTE: The measured output power should be at least +I5 % of the rated output
power.
CAUTION: 1°C CORRESPONDS TO 75 WATTS.
REPEAT MEASUREMENT IF THE POWER IS INSUFFICIENT.
(Tl OC)
(T2 OC)
(T2 OCI
Heat up for 1 min. 51 sec.
MICROWAVE OUTPUT POWER (1 LITRE WATER LOAD)
(RD82AOZJ)
The following test procedure should be carried out with the mi&owave oven in a fully assembled condition (outer case fitted). Microwave output power from the magnetron can be measured by way of IEC 705, i.e. it can be measured by using water load how much it can be absorbed by the water load. To measure the microwave output power in the microwave oven, the relation of cal-
5
Page 8
R -4A54 R-4A54B
TEST PROCEDURES (CONT’D)
PROCEDURE
LETTER
COMPONENT TEST
orie and watt is used. When P(W) heating works for t(second), approximately P x t/4.1 87 calorie is generated. On the other hand, if the temperature of the water with V(ml) rises AT (“C) during
this microwave heating period, the calorie of the water is V x AT.
The formula is as follows;
Pxt/4.187=VxAT
P(W)=4.187xVxAT/t
Our condition for the water load is as follows:
Room temperature . . . . . . . . . . . . . . . . . . . . . around 20°C Power supply Voltage . . . . . . . . . . . . . Rated
voltage
Water load
*....... 1000 g
Initial temperature
. . . . . . . 1 Of2”C Heating time . . . . . . . . . . . . . . . . 47 sec.
P = 90 x AT
Measuring condition:
1. Container The water container must be a cylindrical borosilicate glass vessel having a maximum material thickness of 3 mm and an outside diameter of approximately 190 mm.
2. Temperature of the oven and vessel The oven and the empty vessel are at ambient temperature prior to the start of the test.
3. Temperature of the water The initial temperature of the water is (10 f 2)“C.
4. Select the initial and final water temperature so that the maximum difference between the final water temperature and the ambient temperature is 5°C.
5. Select stirring devices and measuring instruments in order to minimize addition or removal of heat.
6. The graduation of the thermometer must be scaled by 0.1 “C at minimum and an accurate thermometer.
7. The water load must be (1000 + 5) g.
8. “t” is measured while the microwave generator is operating at full power. Magnetron filament heat-up time is not included.
NOTE: The operation time of the microwave oven is “t + 2” sec. 2 sec. is magnetron filament
heat-up time.
Measuring method: 1 Measure the initial temperature of the water before the water is added to the vessel.
(Example: The initial temperature Tl = 11 “C)
2. Add the 1 litre water to the vessel.
3. Place the load on the centre of the shelf.
4. Operate the microwave oven at HIGH for the temperature of the water rises by a value A T of (10 * 2)“C.
5. Stir the water to equalize temperature throughout the vessel.
6. Measure the final water temperature. (Example: The final temperature 12 = 21 “C)
7. Calculate the microwave power output p in watts from above formula.
/
Initial temperature
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Tl = 11 “C
Temperature after (47 + 2) = 49 sec. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . T2
= 21 “C
I Temperature difference
Cold-Warm . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
AT1
= 10°C
/ I
Measured output power The equation is “P=
90 x
AT”
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P= 90 x 10°C = 900 Watts
JUDGMENT: The measured output power should be at least +I5 % of the rated
output power.
CAUTION: .l”C CORRESPONDS TO 90 WATTS. REPEAT MEASUREMENT IF THE POWER IS
INSUFFICIENT.
Page 9
R-4A54 R-4A54B
TEST PROCEDURES (CONT’D)
PROCEDURE
LETTER COMPONENT TEST
1 ooog
+
T2”C
Heat up for 49 sec.
(RD82u03Ul
M
PROCEDURES TO BE TAKEN WHEN THE FOIL PATTERN ON THE PRINTED WIRING BOARD (PWB) IS OPEN.
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. If the foil pattern is open, follow the trou­bleshooting guide given below for repair.
Problem: POWER ON, indicator does not light up.
/STEPS :
OCCURANCE
1
CAUSE OR CORRECTION
/ 1
/
/
/The rated AC voltage is not present at POWER ter- j Check supply voltage and oven power cord. Please / j minal of CPU connector (CN-A)
j I
use term “Low voltage transformer” when refering to I
’ transformer Tl
I
j 2
I
/ The rated AC voltage is present at primary srde of low Low voltage transformer or secondary circuit defec- j
1 voltage transformer.
tive Check and repair.
I
I Only pattern at “a” is broken.
; ‘Insert jumper wire Jl and solder.
I
; 4
/ Pattern at “a” and “b” are broken.
I
I ‘Insert the coil RClLF2003YAZZ between “cl’ and
1
/
: “d”.
M
RELAY TEST
NOTE:’ At the time of these repairs, make a visual in-
spection of the varistor for burning damage and examine the transformer with tester for the presence of layer short-circuit (check primary coil resistance). If any abnormal condition IS detected, replace the defective parts.
1. CARRY OUT 30 CHECKS
2. Disconnect the leads from the primary of the power transfomer. Make sure that the leads re­main isolated from other oven components and chassis. (Use insulation tape if necessary.)
3. Close the door.
4. Reconnect the supply.
5. Check the voltage between Pin Numbers 3 and 5 of 4-pin connector (A) on the control unit
with an A.C. voltmeter. The meter should indicated 240 volts, if no check oven circuit.
6. RYl AND RY2 TEST These are operated by D.C. voltage. Check voltage at 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 di-
ode is good, control unit is defective.
RELAY SYMBOL OPERATIONAL VOLTAGE
CONNECTED COMPONENTS
RYl Approx. 26.5V. D.C.
Oven lamp/Turntable motor/Cooling fan motor
RY2 Approx. 25.8V.D.C.
Power transformer
7
Page 10
R-4L454 R -4A54B
TOUCH CONTROL PANEL ASSEMBLY
OUTLINE OF TOUCH CONTROL PANEL
The touch control section consists of the following units as shown in the touch control panel circuit.
(1) Key Unit (2) Control Unit
The principal functions of these units and the signals communrcated 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 ROo - RO
3, RIO - RI3
When a key pad is touched, a signal is completed through the key unit and passed back to the LSI through R23, R30 - R32 to perform the function that
was requested.
Control Unit
Control unit consists of LSI, power source circuit, synchronizing signal circuit, ACL circuit, buzzer circuit and indicator circuit.
1) LSi
This LSI controls the key strobe signal, relay driving signal for oven function and indicator signal.
2) Power Source Circuit
This circuit generates voltage necessary in the control unit.
Symbol Voltage Application
__~__--~ ~~
VC
-5V LSI (ICI)
VP
-29V
Fiuorescent display tube : Grid and anode voltage
VF1 3Vac Filament of fluorescent display
tube
VF2 (VF1 to VF2 voltage)
~- --
4)
5)
6)
7)
8)
ACL Circuit
A circuit to generate a signal which resets the LSI to the initial state when power is supplied.
(RD919A4U)
Buzzer Circuit
The buzzer responsive to signals from the LSI to emit noticing sounds (key touch sound and com­pletion sound).
Door Sensing Switch
A switch to “tell” the LSI if the door is open or closed.
Relay Circuit
To drive the magnetron, fan motor, turntable motor and light the oven lamp.
Indicator Circuit
Indicator element is a Fluorescent Display.
Basically, a Fluorescent Display is a triode having a cathode, a grid and an anode. Usually, the cath­ode of a Fluorescent Display is directly heated and the filament serves as cathode. The Fluorescent Display has 6-digits, 13-segments are used for displaying figures.
3) 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 smal! error because it works
on commercial frequency.
(RD918AZU)
Page 11
9 -4A54 R-4A54B
DESCRIPTION OF LSI
LSI( IZA430DR)
The I/O signais of the LSI(IZA430DR) are detailed in the following table.
PIN NO. I 1
1 SIGNAL 1 D10
I i/o
/ OUT
Diqit selection sinnal.
Refer to the touch control panel circuit about the relation between signals and digits. Normally, one pulse is output in every synchronized signal period, and input to the grid of the fluorescent display.
PIN NO.
/ 2
1 SIGNAL / Dll
I
I/O OUT
Seqment data siqnals.
Refer to the touch control panel circuit for the relationship between signals and indicators.
Normally, one pulse is output in every synchronized signal period, and input to the anode of the fluorescent display.
PIN NO. / 3
Siqnal to sound buzzer.
1 SIGNAL / TGl
I
I/O
j OUT
A: Key touch sound (0.12 sec.).
B: Completion sound (2.4 sec.).
PIN NO.
: 4
1 SIGNAL j Vdisp
I
l/O
IN
Anode (seqment) of Fluorescent Display illumination voltaqe: -29V
Vp voltage of power source circuit input.
PIN NO. / 5
Seqment data siqnal.
Signal similar to Dl 1 .
1 SIGNAL i ROo
I
I/O
j OUT
Kev strobe siqnal.
Signal applied to touch-key section.
A pulse signal is input to R23, R30 -
R32 terminal while one of Gl line keys on key matrix is touched.
PIN NO.
j 6
Seqment data sinnal.
Signal similar to Dll .
SIGNAL 1 R01
I
i/O
i OUT
Kev strobe siqnal.
Signal applied to touch-key section.
A pulse signal is input to R23, R3o -
R32 terminal while one of G2 line keys on key matrix is touched.
PIN NO.
/ 7
Seqment data siqnal.
Signal similar to Dll .
1 SIGNAL / ROz
I
l/O
OUT
Kev strobe siqnal.
Signal applied to touch-key section.
A pulse signal is input to R23, R30 -
R32 terminal while one of G3 line keys on key matrix is touched.
PIN NO.
/ 8
Seqment data siqnal.
Signal similar to Dl 1 .
SIGNAL / RO3
I
I/O
/ OUT
Kev strobe siqnal.
Signal applied to touch-key section.
A pulse signal is input to R23, R30 -
R32 terminal while one of G4 line keys on key matrix is touched.
PIN NO.
1 9
Seqment data siqnal.
Signal similar to 011.
1 SIGNAL / Rlo
I
I/O
OUT
Kev strobe siqnal.
Signal applied to touch-key section.
A pulse signal is input to R23, R30 -
R32 terminal while one of G5 line keys on key matrix is touched.
PIN NO.
/ 10 1 SIGNAL 1 RI1
I
l/O
j OUT
Seqment data siqnal.
Signal similar to Dl 1.
Kev strobe siqnal.
Signal applied to touch-key section.
A pulse signal is input to R23, R30 -
R32 terminal while one of G6 line keys on key matrix is touched.
9
Page 12
R-4A54 R-4A54B
/ 11 PIN NO.
Seoment data signal.
Signal similar to Dl 1.
f SIGNAL /
R12
I
l/O
i OUT
Key strobe signal.
Signal applied to touch-key section. A pulse signal is input to R23, R3o - R32 terminal while one of G7 line keys on key matrix is touched.
PIN NO.
! 12
Seament data signal.
Signal similar to Dll.
1 SIGNAL j RI3
I
I/O
i OUT
Kev strobe signal.
Signal applied to touch-key section. A pulse signal is input to R23, R3o ­R32 terminal while one of G8 line keys on key matrix is touched.
PIN NO. i 13-15
1 SIGNAL / R2o-R22
I i/o
/ OUT
Segment data signal. Signal similar to Dll.
PIN NO. i 16
1 SIGNAL 1 R23 1 l/O / IN
Signal cominn from touch kev.
When either one of G9 line keys on key matrix is touched, a corresponding signal out of ROo - RO3, RIO - RI3 will be input into R23. When no key is touched, the signal is held at “L” level.
PIN NO. ; 17
1 SIGNAL j R30
I
I/O
/ IN
Signal comino from touch kev.
When either one of GIO line keys on key matrix is touched, a corresponding signal will be input into R3o.
PIN NO. 1 18
1 SIGNAL i R37
I
I/O
/ IN
Signal coming from touch kev.
When either one of Gll line keys on key matrix is touched, a corresponding signal will be input into R31.
PIN NO. I 19
SIGNAL / R32
I
i/O
I IN
Signal coming from touch kev.
When either one of G12 line keys on key matrix is touched, a corresponding signal will be input into R32.
PIN NO. i 20
I SIGNAL i INT 1
I
I/O
1 IN
Signal svnchronized with commercial source freouencv(50Hz).
This is the basic timing for time processing of LSI.
PIN NO. i 21
1 SIGNAL / GND
Power source voltaoe: -5V
VC voltage of power source circuit input.
I
l/O
i IN
PIN NO. ; 22 Connected to GND.
1 SIGNAL / AVCC
I
I/O
i IN
PIN NO.
! 23,24
Connected to VC.
1 SIGNAL / ANO,ANl
I
I/O
; IN
PIN NO.
j 25
1 SIGNAL 1 AN2
I I/O
: IN
Terminal not used.
PIN NO.
j 26
1 SIGNAL ; AN3
I
i/O
: IN
Input signal which communicates the door open/close information to LSI.
Door closed; “H” level signal. Door opened; “L” level signal.
IO
Page 13
PIN NO.
j 27
Connected to VC.
1 SIGNAL j AVSS
I
I/O
/ IN
PIN NO. 1 28
1 SIGNAL 1 RESET
I
I/O
I IN
Auto clear terminal.
Signal is input to reset the LSI to the initial state when power is supplied. Temporarily set to “H” level the moment power is supplied, at this time the LSI is set. Thereafter set at “L” level.
PIN NO.
i 29
Connected to GN D.
1 SIGNAL I TEST
I
I/O
/ IN
PIN NO. / 30
SIGNAL / OSCl
I
I/O
1 iN
Internal clock oscillation freauencv innut setting.
The internal clock frequency is set by inserting the ceramic filter oscillation circuit with respect to OSCl terminal.
PIN NO. i 31
1 SIGNAL j OSC2
Internal clock oscillation freauencv control output.
Output to control oscillation input of OSC2.
I
I/O
/ OUT
PIN NO.
i 32
1 SIGNAL I VCC
Power source voltage input terminal.
Connected to GND.
I
I/O
j IN
PIN NO. / 33
-Terminal not used.
f SIGNAL 1 DO
I
I/O
/ OUT
PIN NO. / 34
SIGNAL / Dl
Maqnetron High-voltaqe circuit driving sianal.
To turn on and off the cook relay.
I
I/O
j OUT
In high operation, the signals holds “H” level during microwave cooking and “L” level while not cooking. In other cooking modes (MED. HIGH, MED., MED. LOW, LOW) the signal turns to “H” level and “L” level in repetition according to the power level.
(RD933Al U)
PIN NO. j 35
Terminal not used.
1 SIGNAL / D2
I
l/O
/ OUT
PIN NO. / 36 1 SIGNAL / D3
I
l/O
1 OUT
Oven lamp, turntable motor and cooling fan motor driving siqnal. (Square Waveform: 45Hz)
To turn on and off the control relay. The pulse signal (45Hz) is delivered to the control relay driving circuit and cook relay control circuit.
PIN NO. j 37
/
1 SIGNAL j D4
Segment data signal. Signal similar to Dll .
I
l/O
/ OUT
PIN NO. 1 38-42 1 SIGNAL i D5-D9
I
I/O 1 OUT
Diait selection signal. Signal similar to 010.
(RD938A2U)
11
Page 14
R -4A54
R-4A54B
SERVICING
1. Precautions for Handing Electronic Components
This unit uses CMOS LSI in the integral part of the
circuits. When handing 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 charged 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 aluminum 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.
1MR
2. Shapes of Electronic Components
Transistor
DTA114ES DTAI 43ES DTC143ES
DTD143ES
3. Servicing of Touch Control Panel
We describe the procedures to permit servicing the touch control panel of the microwave oven and the cautions you must consider when doing so. To carry the servicing, power supply to the touch control panel is available either from the power line of the oven proper itself of from an external power source.
(1) Servicing the touch control panel with
power supply from the oven proper: CAUTION: THE HIGH VOLTAGE TRANSFORMER OF THE MICROWAVE OVEN IS STILL ALIVE TO GIVE YOU DANGER DURING SER­VICING.
Therefore, when checking the performance of the touch control panel,put the outer cabinet on the oven proper to keep from touching the high voltage transformer, or unplug the primary terminal (connector) of the high voltage trans­former to turn it off; and the end of such con­nector shall be insulated with an insulating tape. After servicing, be sure to replace the leads to their original locations.
A. On some models, the power supply cord be-
tween the touch control panel and the oven
proper is so short that they can’t be separated
from each other.
For those models, therefore, check and repair all the controls (with the sensor-related ones included) of the touch control panel while keeping it in contact with the oven proper.
B. On some models, on the other hand, the power
supply cord between the touch control panel and the oven proper is so long that they may be separated from each other. For those mod­els, therefore, it is allowed 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 stop switch (on PWB) of the touch control panel with a jumper, which brings about an opera­tional state that is equivalent to that with the oven door being closed. As to the sensor-related controls of the touch control panel, their checking is allowed if the dummy resistor(s) whose resistance is equal to that of those controls is 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 stop switch (on PWB) of the touch control panel,which brings about an operational state that is equivalent with the oven door being closed. And connect an external power source to the power input terminal of the touch control panel, and then it is allowed to check and repair the controls of the touch control panel;as in the case of (1 )-B above, it is here also possible to check the sensor-related controls of the touch control panel by using the dummy resistor(s).
4. Servicing Tools
Tools required when servicing the touch control panel assembly.
1) Soldering iron: 30W (To prevent leaking cur­rent, it is recommended to use a soldering iron with a grounding terminal.)
2) Oscilloscope:
Single beam, frequency range:
DC - IOMHz type or more ad-
vanced model.
3) Others:
Hand tools
5. Other Precautions
1) Before turning on the power source of the control unit, remove the aluminum foil applied for preventing static electricity.
2) Connect the connectors of the indicator and key units to the control unit taking care that the
lead wires are not twisted.
3) After aluminum foil is removed, take extra care 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, taking care that all connections are tight.
5) Be sure to use specified components where high precision is required.
12
Page 15
R -4A54 R-4A54B
COMPONENT REPLACEMENT AND ADJUSTMENT PROCEDURE
::
3.
4.
::
3.
1.
2.
3.
4.
5.
1.
2.
3.
4.
5.
6.
5.
POWER TRANSFORMER REMOVAL
CARRY OUT 3D CHECKS Remove the fan motor assembly from the oven re-
ferring to “FAN MOTOR ASSEMBLY”.
Disconnect the filament lead of the power transfor-
mer from high voltage capacitor.
Disconnect the filament lead of the power transfor-
mer from the magnetron.
5. Disconnect the high voltage wire of H.V. rectifier
assembly from the power transformer.
6. Remove the one (1) screw from under side and two
(2) screws from upper side holding the transformer
to bottom plate.
7. Remove the transformer.
TURNTABLE MOTOR REMOVAL
Disconnect the oven from power supply.
4. Disconnect the wire leads from turntable motor.
Remove the turntable and roller stay from the oven
cavity.
5. Remove the two (2) screws holding the turntable
Remove the one (I) screw holding the turntable
motor to oven cavity bottom side and remove the
turntable motor.
motor cover to the bottom plate and remove the
6. Turntable motor is now free. At this time, o-ring and
cover.
washer is removed. Do not loose them.
FAN MOTOR ASSEMBLY REMOVAL
CARRY OUT 30 CHECKS. Disconnect the wire leads from the fan motor. Disconnect the H.V. wire A and the filament lead(longer one) of the power transformer from the magnetron. Release the H.V. wire A and filament lead from the holes in the fan duct.
6.
7
Remove the snap of the wire tie holding the wire leads to the oven lamp from the hole of the oven
cavity.
8*
9.
Remove the one (1) screw holding the magnetron air guide to the oven cavity and remove the magnetron air guide.
Release the tabs of the fan duct from the holes in the bottom plate and the back plate of the oven cavity.
Release the main wire harness from the hole in the fan duct. Now, the fan motor assembly is free.
OVEN LAMP SOCKET REMOVAL
CARRY OUT 3D CHECKS Remove the snap of the wire tie holding the wire leads to the oven lamp from the hole of the oven
cavity.
Remove the one (1) screw holding the magnetron
air guide to the
Lift up the tab holding the oven lamp socket.
Remove the oven lamp socket. Pull the wire leads from the oven lamp socket by pushing the terminal hole of the oven lamp socket
with the flat type small screw driver.
Now, the oven lamp socket is free.
Flate small drivel
Figure C-2. Oven lamp socket
13
Page 16
R -4A54 R-4A54B
POWER SUPPLY CORD REPLACEMENT
(FOR AUSTRALIA MODEL)
Removal
1.
2.
3.
4.
5.
6.
CARRY OUT 3D CHECKS. Disconnect the brown wire of the power supply cord from the fuse holder. Remove the connector CE-230 by cutting the con­nected wire leads to it. Remove the single (1) screw holding the green/yellow wire of the power supply cord to the oven cavity. Remove the single (1) screw holding the cord anchorage to the oven cavity. Remove the power supply cord from the oven.
Re-install
Main harness
1.
2.
3.
4.
Insert the power supply cord into the cord anchorages. Connect the brown wire of the power supply cord
to the fuse holder.
Install the green/yellow wire of the power supply cord to the oven cavity with the single (1) screw
tightly.
Make sure that the blue wire and the white wires are stripped for 15 MM length as shown illustlation.
1.
2.
3.
4.
5.
6.
5. Wind the conductors of Blue and White wires each other.
6. Insert the stripped wire leads into the connector CE-230.
7. Clamp the connector CE-230 with the correct tool tightly.
pro anchorage
Brown wire
I
Power supp ty cord
/
/
CE230 ’
Green/Yellow wire
I
1‘
Blue wire
Figure C-4 Power Supply Cord Replacement
for Australia Model’
UPPER LATCH SWITCH, LOWER LATCH SWITCH,
STOP SWITCH AND MONITOR SWITCH REMOVAL
CARRY OUT 3D CHECKS.
Mcmitor switch
Remove the air duct from the oven cavity. Disconnect the leads from all switches. Remove the two (2) screws holding the latch hook
to the oven cavity.
Remove the latch hook.
Upper latch switch
Push the retaining tab slightly and remove the
switch.
ower latch switch
Figure C-6. Switches
14
Page 17
R-4A54 R -4A54 B
I
1
SCHEMATIC
j NOTE: CONDITION OF OVEN.
1. DOOR CLOSED.
, 2. CLOCK APPEARS ON DISPLAY.
$5
w z’: %i
% Yls &I l-v I-IL
zi
*Ok
SE5
cy~ul
i-z&
a
7
I”=
0 T
'-v w
8
d
2
t
2-p 7
UES
Aal>
El
I
:--,
ok-0
0
2
I
kg
I
T - -
CON
--\
I
z
I .
I; 1s &g 1
B"w"
.
m I
L--,
I
m
m
;:
- l-
u 5%
m
d
0 J
5
w
5 Y
c:
%*
v
-
Ffm
-
UYm
B ?
z
b
-
A - a
I5
*VI-
Lizs
-2UY
Figure O-l (a). Oven Schematic-OFF Condition (For Australia model)
SCHEMATIC
/ NOTE: CONDITION OF OVEN
1 I !
/ 1. DOOR CLOSED. - - -
/ I
/ 2. COOKING TIME PROGRAMMED.
I
j 3. START KEY TOUCHED.
/ /
IZ
‘Oh
OC­z<z (Y2u-l
r-zi-
8
d
2
cY8r
9
El
I
i
I
i%iiz
--t
--\
2
5
t
Iii
zcnm
I
iTr 11
ow ’
L& ‘B”g, /
lU0
(g E
>(
f
>
L---
I
m
3
I
E
m
:
:
5
F 8
i
c
a:
!
-I
T
W
r
E
i
IL ?ii
s;B
2 E 2 z
w
z
8
Figure O-Z(a). Oven Schematic-ON Condition (For Australia model)
15
Page 18
R -4A54 R-4A54B
I
SCHEMATIC
NOTE: CONDITION OF OVEN
/ 1. DOOR CLOSED.
2. CLOCK APPEARS ON DISPLAY.
I.4
E
I
EG! ;;:r
I
z
El
0-l
c-4
I ,
, ,
, I I I ,
/ I
c&L
2&s
--\
zu-im
~I
8%
>a
I=
E Ei i ii
:
f w
ii
IL $
1:
2 8 c z
z
I-
s
* -
a
0
& c1
E
Tz
$ 0 <rnO
%-”
-0
V-< r-7
L-J
v gg
IA
Yi-
l-
2:
\ (0’
i!Fi mx I T
c
d
m
7
0
2
W
- a 3=
Iii -
I
i
-.--~.L$3i
+I
2
!$jE
Y
0
L;;a
-
Ii5
*Vt
Lizs
--IL0
Figure O-l(b). Oven Schematic-OFF Condition (For New Zealand model)
SCHEMATIC
NOTE: CONDITION OF OVEN
1. DOOR CLOSED
2. COOKING TIME PROGRAMMED.
3. START KEY TOUCHED.
,i,
I
E \
I.2
i]
is
mx I
- I-
d
>
F:
m
CL
W
s
-
d -
I
W
-A-
;$
I
I
b
*1
5 m
2
s2 g>
I
zl
iz
m
N
3@3
8
t
- ZG
0
<rnO
Q-N < *v v---z
i---
+k- m'
-9
g: iii5
Figure O-Z(b). Oven Schematic-ON Condition (For New Zealand model)
16
Page 19
I
I-- ------
I
c)
11 m
-
_-- --
I ~.._.. CI - . .-_-__.-_- 0 --.. -- ---. -..... w - -..- -. __.._ D _..-
I
LIVE
POWER
TC: THERMAL TFt
SUPPLY CORD
CUT-OUT TEMP. FUSE
*
145c (OVEN) 15oc (MB)
--f RED
RED
R
.-
CONTROL PANEL
/I CN-B
z
U
RED
jq_nb
i
F: LEE
t
I I
CN-B
I I II L
1
r
I I
COM.b!!d 12
, r%---
CN-A
pz-iq
135
SW4: STOP SWITCH
TTM: TURNTABLE
III l-@s2iTI
H.V.RECTIFIER
I
CAPACITOR
NOTE: The marked “@‘I
connector is &he positive lock connector.
Figure S-l. Pictrial Diagram( For Australia Model)
I
I
L ---_-- --_.-
-- .--- --_--__ -- --
-.-- __--- -_ ----
-.
---------_
x
__-------
G)
.------- -------_--
n m
.J
0
0 W
D
Page 20
R -4A54 R -4A54 B
I I
I
Ai
/ / /
I
I
Bi
I
i
I /
C
D
2
4 I 5
I
6
8 8
I
- 1 1
/ IF
I I /
r I
iE
I-
C
1
-
c
i / z ’
c
1 , I 2 4
3
1
4
5
I
6
18
Page 21
T
c)
n
__- -. - --.. --___
I
__ _._ _ _.___. __ I
m
0
I _ _ -.__-._
0
I--.- _--~..-._.---1
W
D
IC-1 ILA430DFl
IF NOT SpECIFIELt 1?.%270~
If Ml SPECIFEU. 0 OlhF/lBV
Figure S-3. Control panel circuit
---- ---
----
__-
I
ta r-
-
---
__-.-----
---
-. .
. -_-
.----
-.._ -.
_-
_ -
n __..._ ___. - --____-- ---- m -.--- I__---
0
0
W
D
T? %%
k’i:
W
Page 22
R -4A54 R-4A54B
C
t
E
F
E
h
1 2
3
/
I
4 5
6
I
I
-,F-“, I
\
.
-
-
Figure S-4. Printed Wiring Board
20
Page 23
R -4A54 R -4A540
PARTS LIST
Note :
The voltage supplied to the parts n*r are greater than 250V.
REF. NO. 1 PART NO.
I
DESCRIPTION
1 ov [CODE
ELECTRICAL PARTS
* *
* *
*
l- 1 QFS-TA014WREO Temp. fuse 150°C (MG)
l- 2
1 AG
QFSHDA002WREO Fuse holder (For Australian Model)
l- 3
1
AF
QSW-MA009WREO Monitor switch (V-5220D-070)
l- 4
1 AF
QSW-MAOSlWREO Upper latch switch (V-5230D-600)
1 AF
l- 5 RTHM-A057WREO Thermal cut-out 145°C (OVEN)
1 AG
;I ;
QACCAAOllWREO Power supply cord (For Australian Model)
'
l- 7
QACCAAOl8WREO Power supply cord (For New Zealand Model)
AQ
FW-QZA070WRKO H.V.
1 AQ
l- 8
rectifier assembly
1 AY
l- 9
RC-QZA075WREO High Voltage capacitor
1
AU
QSOCLAOllWREO Oven lamp socket
1 AH
l-10 l-11
RLMPTA029WREO Oven lamp
1
QFS-CAOlOWREO Fuse M8A
AL
l-12
1
RMOTEA255WREO Fan motor
AE
l-13
1 BB
RTRN-A288WREO Power transformer
l-14
1 BM
RV-MZA089WREO Magnetron (For Australian Model)
1 BF
l-14 l-15
RV-MZA108WREO Magnetron (For New Zealand Model)
1
RMOTDA133WREO Turntable motor
BG
1 AW
l-16
RR-WZA003WREO Monitor resistor 0.8 n 20W
l-17
1 AG
QSW-MA051WREO Lower latch switch
l-18
1
AF
QSW-MA051WREO Stop switch
1 AF
l-19
FPWBFA221WRKO Noise filter (For New Zealand Modelj
1 AX
CABINET PARTS
2- 1 2- 2
FHNG-A172WRTO Lower oven hinge assembly GCABUA310WRPO Outer case cabinet (R-4A54)
1 AM
2- 2
1 BF
1
;I ;
GCABUA358WRPO Outer case cabinet (R-4A54Bj MHNG-A280WRTO Upper oven hinge
BG
PCOVPA249WRPO Turntable motor cover
: AM 1
AK
2- 5
PCAPHA015WREO Cabinet cap (White; R-4A54j PCAPHA009WREO Cabinet cap (Black; R-4A54Bj
AD
2- 6
GLEGPA023WREO Foot
: AD
4 AC
CONTROL PANEL PARTS
3- 1 3- 1A
CPWBFA498WRKO Control unit (New Zealand only)
QCNCMA234DREO 3-pin connector (A) 3- 1B 3- 1c
QCNCMA275DREO 2-pin connector (B)
QCNCWA030DREO 12-pin connector (G)
3- 1D
RV-KXA037DREO Fluorescent display tube
Cl c2
RC-KZA087DREO Capacitor
O.lpF 50V
c3
VCEAB31VW477M Capacitor
47OpF 35V
:z
VCEAB31HW335M Capacitor
3.3pF 50V
VCEAB31CW476M Capacitor
47pF 16V
VCEAB31CWlOGM Capacitor
1OclF 16V
C6,7,11,VCKYDllCY103N Capacitor
c40
O.OlpF 16V
C10,12 C30
VCTYF31HF103Z Capacitor
O.OlpF 5OV
C31
VCEAB31HW104M Capacitor VCEAB31VW475;4 Capacitor
O.lpF 50V
4.7vF 35V
280 ZFlOO
RMPTEAOOgDREO Capacitor array B5RC0122-33N
(330pFx4)
Dl-4
RCRS-A012DREO Ceramic resonator (CST4.00MGW)
920,
VHDllESl///-1 Diode (11ESlj VHDlSS270A/-1 Diode (lSS270A)
D31-32, D40-41,
D60-67
ICl
RH-IZA430DREO LSI
21 210
VSDTC143ES/-3 Transistor (DTC143ES) VSDTA143ES/-3 Transistor (DTA143ESj
1 BP 1 AC 1
AB 1 AE 1
AU
AB t AC 1 AA 1 AA 1 AA
4
AH
2 AB 1 AM 1 AA
1
AE
1 AD
AB
1: AA
AR 1 AB 1
AB
21
Page 24
R-4A54 R-4A54B
NntP .
Thp vnltnne tc~nnlid tn the nartt rr*” am nroator than Yin\/
,.-..a
I I.” .V..YJV “~y”“Y LV . ..Y p,“..”
“I”
yc ““I”. LI I”. I h”” . .
REF. NO.
PART NO. DESCRIPTION
Q30
vSDTAl14ES/-3 Transistor (DT~ll4Es)
Q31,32
VSDTD143ES/-3 Transistor 1DTD143ES)
Rl
VRD-B12HF432J Resistor
4.3kf2 1,'2W
R2
VRD-B12HF102J Resistor
ikn 1,'2W
R3
VRD-B12HF122J Resistor
1.2kR 1/2W
R4,31
VRD-B12EF471J Resistor
470R 1/4W
R5,10,30VRD-B12EF153J Resistor
15kn 1/4W
R20
VRD-B12EF102J Resistor
1kR 1/4W
R21,
VRD-B12EF332J Resistor 3.3k0 1/4W
R60-71
Q’TY
CODI
1
AB
2
AC
1
AH 1 'AA 1 .AA
2
AA 3 AA 1
AA
13 AA
R40
VRD-B12EFlOlJ Resistor
loon 1/4W
R41
VRD-B12EF512J Resistor 5.fkfi 1,'4W
1lAA 1
AA
R8G
RR-DZA089DREO Resistor array fRGLD4X104J)
1
AB
RlOO
VRD-B12EF105J Resistor
1MR 1/4W
1
AA
RYl
RRLY-A080DREO Relay (OJ-SH-124LM)
1 AG
RY2
RRLY-A076DREO Relay (OMIF-S-124LM)
1
AK
SP20
RALM-AO14DREO Buzzer (PKM22EPT-CA)
1
AG
Tl RTRNPA064DREO Transformer
1
AS
VRSl
RH-VZAOlODREO Varistor (TNR15G471K)
1
AE
ZDl VHEHZ6A3///-1 Zener diode 1HZ6A3)
1 AA
ZD2
VHEHZSC2///-1Zener diode (HZ5C-2)
1 AA
ZD3 VHEHZ5A2///-1 Zener diode (HZ5A-2)
1
AH
3- 2
FPNLCA950WRKO Control panel frame with key unit (R-4A54)
1 BC
FPNLCA951WRKO Control panel frame with key unit (R-4A54B)
1
BD
3- 3
JBTN-A817WRFO Open button (R-4A54)
1
AK
JBTN-A818WRFO Open button
{R-4A54ge
1
AL
3- 4
MSPRCA050WREO Open button spring
1 AB
3- 5
XEPSD30PlOXSO Screw; Control unit mtg.
3 AA
OVEN PARTS
4- 1 LBNDKA038WRPO Capacitor holder
1
AH
4- 2
LSTPPA069WRFO Cord anchorage (upper)
1 AE
4- 3
LSTPPA070WRFO Cord anchorage (lower)
1
AD
;I ;
FDAI-A150WRYO Bottom plate
1 AY
PDUC-A406WRFO Air duct
1 AK
4- 6
PHOK-A076WRFO Latch hook
1
4- 8
PCUSUA236WRPO Partition cushion
AQ
1
AF
;I ;
PCUSUA237WRPO Waterproof cushion
1 AF
FOVN-A210WRTO Oven cavity
1
BK
4-10 PCUSUA368WRPO Cushion
1 AK
4-11 MLEVPA166WRFO Latch lever
'1 AE
4-12 4-13
FROLPA047WRKO Roller stay
1 3#lr
NTNT-A036WREO Turntable
1
AX
4-14
GFTA-A008WRWO Oven lamp access cover
1
4-15 ~NCPL-AOlSWRFO Turntable coupling
1 : AD
4-17
PCOVPA212WREO Waveguide cover
1 AF
4-18
PCUSUA157WRPO Cushion
1
AC
4-19 PCUSUA300WRPO Cushion
1
AH
4-20
1
AG
4-21
PPACGA096WREO O-ring PFILWA041WREO Oven lamp filter
l.AA
4-22
NFANJA020WREO Fan blade
AG
4-23 4-24
PGIDHA044WRPO Magnetron air guide
:: AM 1
4-25
LANGQA167WRMO Earth angle (For New Zealand Model)
AB
LANGQA288WRPO Noise filter angle (For New Zealand Model)
1
4-26
AC
PCUSGA322WRPO Cushion
2
AF
4-27
PCUSGA321WRPO Cushion
4-28
1
AH
PCUSUA278WRPO MG cushion
4-29
1
PCUSGA339WRPO Trans. cushion
AF
4-30
2
PDUC-A468WRFO Fan duct
AG
,l
AR
DOOR PARTS
5
;- 1
CDORFA548WRKO Door assembly, complete. (R-4A54) CDORFA549WRKO Door assembly, complete. CR-4A54B) FDORFA226WRTO
Door
(R-4A54)
5-
1
1
FDORFA229WRTO
panel
Door
(R-4A54B)
5-
2
panel
GCOVHA233WRFO Choke cover(R-4A54)
1
7
22
Page 25
R-4A54 R-4A!%B
Note : The
P
s- 3
;I ;
;r 2 5- 7
6- 1 6- 2
6- 3
I
6- 3 6- 3
6-10 6-11 6-11
7- 1 7- 2
;I ; 7- 6
7- 7 7- 8
7- 9 7-10
7-10 7-11 7-12 7-12 7-13
7-14 7-15 7-16 7-18 7-20
7-21
7-22 7-23
oltage supplied to the parts rr*” are greater than 250V.
PART NO.
DESCRIPTION
GCOVHA228WRFO Choke cover(R-4A54B) LSTPPA093WRFO Latch head (R-4A54) LSTPPA090WRFO Latch head (R-4A54B) MSPRTA138WREO Spring HPNL-A412WREO Door screen (R-4A54) -
HPNL-A413WREO Door screen (R-4A54B) PSHEPA336WRPO Sealer film GWAKPA236WRRO Door frame (R-4A54) GWAKPA237WRRO Door frame (R-4A54B)
TCADCA439WRRO TINS-A314WRRO TSPCNB689WRRO TSPCNB690WRRO TSPCNB692WRRO
QTANP0020YBEO QW-QZA141WREO TCAUHAOSSWRRO TLABSA029WRRO FW-VZB137WREO
FW-VZB138WREO FW-VZB139WREO TCAUH0123WRRO TGAN-A002WRRO TGAN-A056WRRO
IVHSCELLANEOUS
Cook book
Instruction book Rating label (R-4A54; Australia) Rating label (R-4A54B Australia) Rating label (R-4A54; New Zealand)
Connector CE-230 (Australia Model) High voltage wire A
Caution label M8A label (Australia Model) Main wire harness (Australia Model)
Main wire harness (New Zealand Model) Low voltage harness Microwave caution (New Zealand Model) Guarantee card (New Zealand Model) Guarantee card (Australia Model)
SCREWS AND WASHERS
Q’TY
CODE
1 AH
1
AF 1 AF 1
AD 1 AV
1
AT
AF i AX 1 AX
1 1 1 1 1
1
: 1 1
1
1 1 1
AX
AP AH AH AH
AH AF AC AY
AY z
A3 AH
XFPSD30PlOOOO Screw;
M3 x 10 zinc plated steel(Australia Model)
1 AB
XOTSD40P12RVO Screw; M4 x 12
9 AB
XOTSD40P12000 Screw; M4 x 12
7
XFTSD40P30000 Screw;
M4 x 30 zinc plated steel
AA
LX-CZ0052WREO Special screw;
2' AA
LX-EZA036WREO Special screw; XOTSE40P08000 Screw; M4 x 8 (R-4A54) XOTSF40P08000 Screw; M4 x 8 (R-4A54B)
4 AA XFPSD30P06000 Screw; M3 x 6 zinc plated steel XFPSD40P08KOO Screw;
M4 x 8 zinc plated steel(Australia Model)
XFPSD40P08KOO Screw; XFPSD40P08000 Screw;
M4 x 8 zinc plated steel(New Zealand Model) 3 AA
M4 x 8 zinc plated steel XHTSD40P08RVO Screw; XHTSD40P08RVO Screw;
M4 x 8 zinc plated steel(Australia Model)
M4 x 8 zinc plated steel(New Zealand Model)
6
LX-WZA004WREO Washer;
1 AA
XBTSD40P08RVO Screw; M4 x 8
1 AA
XWVSD40-05000 Washer;
1 AA
XFTSD40PlOOOO Screw; M4 x 10
1 AA
XWHNZ40-05080 Washer;
1 AA
XBTUW40P08000 Screw: M4 x 8
1 AA
XCPSD30P08XOO Screw; M4 x 8 XBPSD40P25000 Screw; M4 x 25 XNESD40-32000 Nut;
2 AA
t-iOW TO ORDER REPLACEMENT PARTS
To have your order filled promptly and correctly, piease furnish the following information.
1. MODEL NUMBER
2. REF. NO.
3. PART NO.
4. DESCRIPTION
( RDPl303U)
23
Page 26
R-4A54 R-4A54B
1 I 2 3 I 4 5
I
6 I
CABINET PARTS
I
I I
I
I I
I I
I
i I
/ /
1 I
1 / 1
1 2
3
I
4
,
5
I
6
24
Page 27
R -4A54 R-4A54B
1
2
3
!
4
I
5
6
CONTROL PANEL PARTS
/
.
/=
1’
/
/-
t
I
\I,
3-1
DOOR PARTS
1
1
2
3
I
4
,
5
6
25
Page 28
R-4A54 R-4AWB
­I-
Al
I
/ / I
I
4
/ 1
I I
Bj
I /
, ! /
/
Cl
1 I
/ I
I I
D/
1 I
---Y
E/
/
1 I I
F;
I I f
i I
!
G
-j
I
i
Hi
L
1 I 2
3
4 I
5
6
,
MISCELLANEOUS
240mm
WI
IL /
0
6-5
0
&9
PACKING AND ACCESSORIES
TOP PAD
% (SPADBA
CABINET COVER
(SDAKHA003WREO) (iUA54B)
TRAY PAD
% GPADFA207WREO)
524 WREO)
\
DOOR PROTECTION SHEET
%-(SPADA 178WREOt
DOOR PAD
%%(SPADFAOGl WREOJ
(R-4A54B, Australia)
% SPAKCB931WREo
tR-4A54, New Zealand)
3ic Not replacement Items.
II
1)
1
2
3
I
I
/
4
I 5
6
‘92 SHARP CORP. (08K0.83E) Printed in Japan
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