SHARP SERVICE MANUAL
S0705R9380J//
MICROWAVE OVEN
MODEL R-9380
In the interests of user-safety the set should be restored to its original
condition and only parts identical to those specified should be used.
(RDlGlOlU)
TABLE OF CONTENTS
Page
FOREWORD
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...............................
1
CAUTION,
MICROWAVE RADIATION
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1
PRODUCT
DESCRIPTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .......
2
OPERATION
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...............................
4
SERVICING
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .........................
7
TOUCH CONTROL PANEL ASSEMBLY
. ..,..........,.............................................,.............*....................,....
15
COMPONENT
REPLACEMENT AND
ADJUSTMENT PROCEDURE
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
22
MICROWAVE MEASUREMENT PROCEDURE
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
26
PICTORIAL
DIAGRAM
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ..........
27
CONTROL
PANEL CIRCUIT
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
28
PRINTED
WIRING
BOARD
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ..
29
PARTS
LIST
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . : . . . . . . . ..........................
30
PACKING
AND
ACCESSORIES
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
38
SHARPCORPORATION
SERVICE MANUAL
SHARP
i;
PRODUCT DESCRIPTIOF
MICROWAVE OVEN
R -9380
FOREWORD
This Manual has been prepared to provide Sharp Corp. Service
Personnel with complete Operation and Service Information for
the SHARP MICROWAVE oven, R-9380.
It is recommended that service personnel carefully study the
entire text of this manual so they will be qualified to render
satisfactory customer service.
Check interlock switches and door seal carefully. Special attention should be given to avoid electrical shock and microwave radiation hazard.
(RD361 OZU)
CAUTION
MICROWAVE RADIATION
Personnel 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,flanges
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.
Note( Parts List)
: The parts marked rr*rr are used in voltage
more than 250V.
(RD36202U)
SHARPCORPORATION
OSAKA, JAPAN
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MICROWAVE
MEASUREMENT
WIRING
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(RD
37201 U)
R-9380
PRODUCT DESCRIPTION
EXPLANATION OF MICROWAVE COOKING
The Sharp Microwave Oven uses microwave energy to
moisture content, like most foods, will absorb micro-
produce heat in the food to be cooked. Unlike con-
wave energy. As the microwave energy at a frequency
ventional ovens microwave energy will cook foods
of 2450 Megahertz enters the food, the molecules align
without applying external heat.
themselves with the energy. Because the microwaves
are changing polarity every half cycle, the food mole-
Microwaves, which are short electromagnetic waves
cules are changing direction every half cycle or oscil-
of RF (radio frequency) energy, pass through materials
lating back and forth 4,900,000,000 times per second.
such as glass, paper, china and most plastics. Materi-
This high speed oscillation causes friction between the
als such as metal and aluminum foil tend to reflect
molecules, thereby converting the microwave energy
microwaves and may be used only as recommended in
to heat.
(AD41 101 U)
the cooking instructions.
Materials with a high
I.
SPECIFICATION
F
ITEM
DESCRIPTION
Power Requirements
240 Volts
50 Hertz
Power Consumption
Power Output
Case Dimensions
Single phase, 3 wire earthed
14oow
700 watts nominal of RF microwave energy (2 liter water load)
Operating frequency of 2450MHz
Width 616 mm
Height 367 mm
Depth 477 mm
Cooking Cavity Dimensions
Width 406 mm
Height 248 mm
Depth 422 mm
Control Complement
P-L \A,-‘- LL
381 vvergnr
/ Touch Control System
Clock( I:00 - 12:59 )
Timer (0 - 99 min. 99 sec. )
Microwave Power for Variable Cooking
Repetition Rate;
HIGH . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Full power throughout the cooking time
MED HIGH . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
approx. 70% of Full
Power
MED . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
approx.
50% of Full Power
MED LOW (DEFROST)
. . . . . . . . . . . . . . . . . . . . . . approx. 30% of Full Power
LOW . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
approx.
10% of Full Power
HOLD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
No power throughout the cooking time
INSTANT COOK/START
AUTO START COOKING
EASY DEFROST COOKING
/ EASY REHEAT COOKING
1 MORE( )/LESS( ) pad
L--- o-n-
/ npprox. LJ KQ
(RD44101
NOTE:’ Numbers and leters shown after sentences such as “RD44101 U” are for factory use only.
2
OVEN DIAGRAM
1. Ventilation
openings
2. Oven lamp
3. Oven door with see through window
4. Removable
turntable
5. Roller Stay
6. Door latches
7. Door button
open
8. Auto-Touch Control Panel
9. Digital readout
10. Waveguide cover
11. Access cover for oven lamp replacement
Auto-TouchTM Control Panel
r
NUMBER PADS
I
\I
,
1
’
11 EASY REHEAT j
3
l.Dmner plate .._. I-2~lales
2.Chicken......---.,.l-6pcs
3.CassetolelSouP-l-4cups
4,ptZZa ,-Bpcs
5.Eleverage ......... I-4cups
1 7 11 n’-LOd I--
r
INSTANT COOK
START
I
12. Door hinges
EASY REHEAT PAD
EASY DEFROST PAD
VARIABLE COOKING CONTROL
PADS
MORE I A I. LESS ( ‘I ) PADS
AUTO START/CLOCK PAD ._
TIMER/HOLD PAD
INSTANT COOK/START PAD
STOP/CLEAR PAD
3
-~
R-9380
OPERATION
DESCRIPTION OF OPERATING SEQUENCE
The following is a description of component functions
during oven operation.
(RD7!101Ul
OFF CONDITION
Closing the door activates both door latch switches:
upper latch switch and lower latch switch. (In this
condition, the monitor switch contacts are opened.)
The stop switch is activated by the latch head.
When oven is plugged in, 240 volts A.C. is supplied to
the control unit.
But no components in the oven will operate.(Figure
o-1 .)
Note: When the door is opened by pushing the door
open button, the contacts of the relay RY-1 are
closed, then the oven lamp lights.
1.
The display will show flashing “88:88”.
To set any program or set the clock, you must
first touch the STOP/CLEAR pad.
The display will clear, and 1 :00 will appear and
count up every minute.
COOKING CONDITION
‘HIGH COOKING CONDITION
Program desired cooking time and Variable Cooking
Control by touching the NUMBER pads and the HIGH
pad of the Variable Cooking Control. When the START
pad is touched, the following operations occur:
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)
2.
3.
4.
5.
RELAY
-Fw1
RY-2
CONNECTED COMPONENTS
.---.-
oven lampjturntable motor/fan motor
power transformer
240 volts A.C. is supplied to the primary winding
of the power transformer and is converted to about
3.5 volts A.C. output on the filament winding, and
approximately 1900 volts A.C. on the high voltage
winding.
The filament winding voltage heats the magnetron
filament and the H.V. winding voltage is sent to a
voltage doubler circuit.
The microwave energy produced by the magnetron
is channeled through the waveguide into the cavity
feed-box, and then into the cavity where the food
is placed to be cooked.
Upon completion of the cooking time, the power
transformer, oven lamp, etc. are turned off, and the
generation of microwave energy is stopped. The
oven will revert to the OFF condition.
6. When the door is opened during a cook cycle,
monitor switch, upper latch switch and lower latch
switch are activated with the following results. The
circuits to the turntable motor, the cooling fan mo-
tor, and the high voltage components are deener-
gized, the oven lamp remains on, and the digital
readout displays the time still remaining in the cook
cycle when the door was opened.
7. The monitor switch is electrically monitoring the
operation of the upper latch switch and is mechan-
ically associated with .the door so that it will func-
tion in the following sequence.
(1) When the door opens from a closed position,
the stop switch, upper and lower latch switches
first operate to open their contacts, and then
the monitor switch contacts close.
(2) When the door is closed from the open posi-
tion, the monitor switch contacts first open,
and then the contacts of the stop switch, upper
and lower latch switches close.
In case the upper latch switch fails with its contacts
closed when the door is opened, the monitor switch
will form a short circuit through the fuse M6.3A, and
the upper latch switch, causing the fuse M6.3A to
blow.
MED HIGH, MED, MED LOW (DEFROST), LOW,
HOLD COOKING
When Variable Cooking Power is programed, the 240
volts A.C. is supplied to the power transformer
intermittently through the contacts of relay( KY-2)
which is operated by the control unit within a 32 second time base. Microwave power operation is as follows:
VARI-MODE ON TIME
HIGH
32 sec.
.__--
OFF TIME
0 sec.
(100% power)
__---_--
~_.-.ME0 HIGH 24 sec. 8 sec.
(approx. 70% power)
MED 18 sec. 14 sec.
(approx. 50% power)
_. ~~ .~ -_. ~~.~~-.--- ..--.-
_-----. ~- .-~.. -. - -- ~~
MED LOW (DEFROST)
12 sec.
20 set
(approx. 30% power)
..Low
6 sec.
26 sec.
(approx. 10% power)
HOLD 0 sec. 32 set
(0% power)
- ___.
Note: 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.
(RD71401U)
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R-9380
DESCRIPTION AND FUNCTION OF COMPONENTS
MAGNETRON TEMP. FUSE
The temp. fuse located on the cavity top plate near the
magnetron to prevent damage to the magnetron if an over
heated condition develops in the tube due to cooling fan
failure, obstructed air ducts, dirty or blocked air intake, ect.
Under normal operation, the temp. fuse remains closed.
However, when abormally high temperatures are reached
within the magnetron the fuse will open at 115°C causing
the oven to shut down.
This is a fuse and it dose not reset.
OVEN THERMAL CUT-OUT
The oven thermal cut-out is located on the rear side of.steam
duct.
If is designed to prevent damege to the oven cavity
is foods in the oven catch fire due to overheating produced
by improper setting of cooking time etc.
Under normal
operation, this thermal cut-out remain closed.
However,
when abnormally high temperatures are reached within the
steam duct thermal cut-out will open causing the oven to
shut down.
DOOR OPEN MECHANISM
The door can be opened by pushing the open button on the
control panel, refer to Figure D-l. When the open button is
pushed, the open plate on the open device pushes in the door
lever on the door, operating the latch head linkage. The lower
and upper latch heads are moved upward, and released from
the lower and upper latch hooks. Now, the door can be opened.
DOOR
/ASSEMBLY
UPPER
LATCH
HEAD
DOOR
OPEN
BUTTON
Figure D-l. Door Open Mechanism
LOWER AND UPPER LATCH SWITCHES
The lower latch switch is mounted in the lower latch hook and
the upper latch switch is mounted in the upper latch hook. They
are activated by the latch heads on the door. When the door
is opened, the switches interrupt the circuit to all components
except the oven lamp.
A cook cycle cannot take place until the door is firmly closed
therebv activating both interlock switches.
MONITOR SWITCH
The monitor switch, mounted on the upper latch hook, is actl-
vated (the contacts opened) by the upper latch head on the
door while the door is closed. This switch is intended to render
the Oven inoperative by means of blowing the fuse when the
COntaCtS of the upper latch switch failes to open when the door
is opened.
Functions:
1. When the door is opened, the monitor switch contacts close
(to ON condition) due to their being normally closed. At this
time the upper latch switch is in the OFF condition (contacts open) due to their being normally open contact
switches.
2. As the door goes to a closed position, the monitor switch
contacts are first opened and then the upper latch switch
contacts close. (On opening the door, each of these
switches operate inversely.)
3. If the door is opened and the upper latch switch contacts
fail to open, the fuse blows simultaneously with the closing of the monitor switch contacts.
CAUTION: BEFORE REPLACING A BLOWN FUSE, TEST
THE UPPER LATCH SWITCH SWITCH AND
MONITOR SWITCH FOR PROPER OPERATION.
(REFER TO CHAPTER “TEST PROCEDURE”)
UPPER
LATCH
HOOK
MONITOR
SWITCH
UPPER
LATCH
SWITCH
LOWER
LATCH
HOOK
STOP
SWITCH
LOWER
LATCH
SWITCH
,
Figure D-2. Latch Switches and Monitor Switch
s
R-9380
SERVICING
TROUBLESHOOTING GUIDE
When troubleshooting the microwave oven, it is helpful to
follow the Sequence of Operation in performing the checks.
Many of the possible causes of trouble will require that a
specific test be performed. These tests are given a procedure
letter which will be found in the “Test Procedures section.”
IMPORTANT: If the oven becomes inoperative because of a
blown fuse in the monitor-upper latch switch
circuit, check the monitor switch and upper
latch switch before replacing the fuse.
PROBLEM
POSSIBLE CAUSE
TEST PROCEDURE OR
CORRECTION
OFF CONDITION
Home fuse blows when power cord
is plugged into wall receptacle.
Shorted wire in power cord or wire harness.
Replace cord or check wiring.
Fuse M6.3A blows when power
cord is plugged into wall
receptacle.
Shorted wire in power cord or wire harness.
Replace power cord or check
and repair wire harness.
Defective monitor switch.
Procedure G.
” 88:88 ” does not appear in display
when power cord is first plugged
into wall outlet.
No power at outlet.
Check home fuse.
No power from service entrance.
Check wall outlet.
Open wire in power cord or wire harness.
Blown fuse M6.3A.
Defective temp. fuse.
Replace same or repair wiring.
Procedure H.
Procedure F.
Defective thermal cut-out.
Open wire In power cord, wiring harness,
or wrring between control panel assembly
unrts.
Procedure I.
Replace or repair wiring.
Defective control unit.
Procedure J.
Display does not operate properly
Defective key unrt.
Procedure J.
when STOP/CLEAR key is touched.
’
(Buzzer should sound and time of
Defective stop switch.
Procedure E.
day should appear in display.)
Defective control unit.
Procedure J.
Oven lamp does not light with
Defective oven lamp.
-_
door opened.
Replace oven lamp.
Defective stop switch.
Procedure E.
Defective control unit.
Procedure J.
Open or loose wire connection to the above
Check wiring.
components.
COOKING CONDITION
Oven lamp does not light in cook
cycle.
(Do light when door is opened.)
Defective relay RY-1 on control unit.
Procedure J.
I
I
7
R-9380
TROUBLESHOOTING GUIDE (CONT’D)
PROBLEM
POSSIBLE CAUSE
TEST PROCEDURE OR
CORRECTION
Oven lamp does not light at all.
Burned out bulb.
Cook indicator appears jn display but
turntable motor does not operate.
Oven lamp lights but fan motor
does not operate.
(Turntable motor does operate)
Oven does not go into cook cycle
when INSTANT COOK/START
key is touched.
Oven seems to be operating but
little or no heat is produced in
oven load. (Food incompletely
cooked or not cooked at all at end
of cook cycle)
C
Defective magnetron.
Defective relay RY-2 on control unit.
Defective power transformer.,
Defective rectifier.
Defective high voltage capacitor.
Defective control unit.
Open or loose wiring to the above
components.
Turntable motor does not operate.
r
Oven does not cook properly when
cooking control set to LOW, MED
LOW, MED, MED HIGH cooking
powers.
Defective control unit.
(Operates properly on HIGH.)
Defective key unit.
Open or loose wiring between, the above
components.
8
COOKING CONDITION (CONT’D)
Open wiring to oven lamp socket.
Defective relay RY-1 on control unit.
Turntable motor defective.
Open or loose wiring between control
. unit and motor.
Defective fan motor.
Open or loose wiring to fan motor.
Upper and Lower latch switches and stop
switch defective or out of adjustment.
Blown fuse M6.3A.
Defective temp. fuse.
Defective thermal cut-out.
Defective relay RY-1, RY-2 on control unit.
Defective control unit.
Defective key unit.
Open or loose wiring to the above
components.
Replace oven lamp.
Check and repair wiring.
Procedure J.
Replace motor.
Check and repair wiring.
Replace fan motor.
Check and repair wiring.
Procedure E.
Procedure H.
Procedure F.
Procedure I.
Procedure J.
Procedure J.
Procedure J.
Check and repair wiring.
Procedure A.
Procedure J.
Procedure 8.
Procedure C.
Procedure D.
zii?czs
Replace turntable motor.
Procedure J.
R-9380
PROBLEM
EASY DEFROST condition touching
INSTANT COOK/START Pad,
“ERROR” appears.
POSSIBLE CAUSE
TEST PROCEDURE OR
CORRECTION ’
Programmed incorrectly
EASY DEFROST will only operate
on a specific weight.
Range for each food category.
See steps for Easy Defrost is
Operation Manual.
Defective control unit.
Procedure J.
R-9380
TEST PROCEDURES
PROCEDURE
LETTER
COMPONENT TEST
A
MAGNETRON ASSEMBLY TEST
DISCHARGE THE HIGH VOLTAGE CAPACITOR BEFORE TOUCHING ANY OVEN COMPONENTS OR WIRING.
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.
Power output of the magnetron can be measured by performing a water temperature rise test.
This test should only be used if above rests do not indicate a faulty magnetron and there is no
defect in the following components or wiring: rectifier, high voltage capacitor, heater transformer
and power transformer.
MICROWAVE OUTPUT POWER
Microwave output power from the magnetron can be measured by way of substitution, 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 calorie and watt is used.
When P(W) heating works for t(second), approximately P x t/4.2 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 formular is as follows;
Pxt/4.2=;Vx LIT
P (W) = 4.2 x V x AT I t
Our condition for the water load is as follows:
Water load . . 2000 ml, Heating time . ..I 20 seconds
P-70x AT
Measuring method;
1. Put the water load of two (2) litres on the center of the oven shelf. The water load should
be arranged in two (2) Pyrex beakers, the size of which is one (1) litre, and be placed at right
and left, side by side, on the oven shelf.
2. Measure the temperature of water before heating and also after heating during 120 seconds
by microwave, and calculate the temperature rise. The temperature rise should be the average
of temperature differences measured in each beaker.
3. The output power should be calculated as follows. In case the measuring result is not satisfactory, execute the measurement several times and judge the result from the synthetic point
of view. Microwave output power should be within + 15% of the nominal one.
Calculation of output power;
Microwave output po\iver . . . P (W) = 70 x AT ( “C)
AT = ( ATL + ATR) / 2 : average temperature rise
ATL = (TL2 - TLI),
ATR = (TR2 - TRl)
TL2 : water temperature after heating in left beaker
TLI : water temperature before heating in left beaker
TR2 : water temperature after heating in right beaker
TRI : water temperature before heating in right beaker
Measuring condition;
As the microwave output is affected by several conditions, the measurement should be made
carefully with following attentions.
1. Initial temperature of salt water should be 20 + 1 “C. (The salt water should be contained
bon (1) percent of salt.) Well and quickly stir the water and the temperature measurement
should be done immediately after heating.
2. The graduation of thermometer should be scaled by 0.1 “C at minimum and an accurate mer-
cury thermometer is recommended.
IO
TEST PROCEDURES (CONT’D)
PROCEDURE
LETTER
COMPONENT TEST
3. Water container should be one (1) litre beaker made of Pyrex glass and its diameter approximately 12 cm.
B
4. Room temperature should be around 20 “C.
5. Power supply voltage should be specification voltage.
POWER TRANSFORMER TEST
DISCHARGE THE HIGH VOLTAGE CAPACITAOR BEFORE TOUCHING ANY OVEN COMPONENTS OR WIRING.
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 1.66 ohms and the resistance of the high voltage coil
should b approximately 84 ohms; the resistance of the filament coil should be less than 1 ohm.
(HIGH VOLTAGES ARE PRESENT TO HIGH VOLTAGE TERMINAL, SO DO NOT ATTEMPT TO
MEASURE THE FILAMENT AND HIGH VOLTAGE.)
C SILICON RECTIFIER TEST
DISCHARGE THE HIGH VOLTAGE CAPACITOR BEFORE TOUCHING ANY OVEN COMPONENTS OR WIRING.
Isolate the rectifier from the circuit. Using the highest ohm scale of the meter, read the resistance
across the terminals and observe, reverse the leads to the rectifier terminals and observe meter
reading. If a short is indicated in both directions, or if an infinite resistance is read in both directions, the rectifier is probably defective and should be replaced.
~RD62501 U)
D
HIGH VOLTAGE CAPACITOR TEST
DISCHARGE THE HIGH VOLTAGE CAPACITOR BEFORE TOUCHING ANY OVEN COMPONENTS OR WIRING.
If the capacitor is open, no high voltage will be available to the magnetron. Disconnect input
leads and check for short or open, between the terminals using an ohmmeter.
Checking with a high ohm scale, if the high voltage capacitor is normal, the meter will indicate
continuity for a short time and should indicate approximately IOM R once the capacitor is
charged. If the above is not the case, check the capacitor with an ohmmeter to see if it is shorted
between the terminals. If it is shorted, replace the capacitor.
E
(RD82603U)
SWITCH TEST
Isolate the switch and check the contacts by using an ohmmeter using the following table
If improper operation is indicated, make the necessary switch adjustment or replacement.
Plunger released
Closed circuit
----_-.-L ._.._..___._ _ _~ ~~~ _..._
Open circuit
11
R-9380
TEST PROCEDURES (CONT’D)
PROCEDURE
LETTER
COMPONENT TEST
F
TEMP. FUSE TEST
A continuity check across the temp. fuse terminals should indicate a closed circuit unless the
temperature of the temp. fuse reaches approximately 115 “C.
An open magnetron temp. fuse indicates overheating of the magnetron assembly. If the temp.
fuse indicates a open circuit, replace the temp. fuse and check for restricted air flow to the
magnetron through the opening in the chassis, especially the air duct and fan motor.
G
MONITOR SWITCH TEST
Desconnect oven from power supply cord. Before performing this test, make sure that the upper
latch switch and lower latch switch are operating properly referring to the above Switch Test
Procedure.
Disconnect the wire lead from the upper latch switch (NO) terminal.
Check the monitor switch operation by using the ohmmeter as follows.
When the door is open, the meter should indicate a closed circuit.
When the monitor switch actuater is pushed by a screw driver through the lower latch hole on
the front plate of the oven cavity with the door opened (in this condition the plunger of the
monitor switch is pushed in), the meter should indicate an open circuit.
If improper operation is indicated, the switch may be defective.
After testing the monitor switch, re-connect the wire lead to the upper latch switch (NO) termi-
nal.
POWER TRANSFORMER
OHMMETER
MONITOR
SWITCH
H BLOWN OVEN FUSE
If the oven fuse in the upper latch switch-monitor switch circuit is blown when the door is
opened, check the upper latch switch and monitor switch before replacing the blown fuse.
If the oven fuse is blown by improper switch operation, replace the defective switch and oven
fuse at the same time.
Replace just the oven fuse if the switches operate normally.
CAUTION; REPLACEMENT FUSE MUST BE THE LISTED FUSE IN PARTS LIST.
I
THERMAL CUT-OUT TEST
A continuity check across the thermal cut-out terminals should indicate a closed circuit. If the
temperature of the steam duct reaches approximately 115 “C the thermal cut-out opens.
The termal cut-out resets automatically at below -20 “C.
An open thermal cut-out indicates overheating of the oven cavity. Check for restricted air flow
to the magnetron through the opening in the chassis, especially the cooling duct and fan.
CAUTION; IF THE THERMAL CUT-OUT INDICATES OPEN CIRCUIT, REPLACE THE THER-
MAL CUT-OUT.
12
R-9380
TEST PROCEDURES (CONT’D)
PROCEDURE
LETTER
COMPONENT TEST
J
TOUCH CONTROL PANEL ASSEMBLY TEST
The touch control panel consists of circuits including semiconductors such as LSI, ICs, etc.
Therefore, unlike conventional microwave ovens, proper maintenance cannot be performed with
only a voltmeter and ohmmeter. In this service manual, the touch control panel assembly is divided into two units Control Unit and Key Unit and troubleshooting by unit replacement is described according to the symptoms indicated.
I. Key Unit.
The following symptoms indicate a defective key unit. Replace the key unit.
a) When touching the pads, a certain pad produces no signal at all.
b) When touching a number pad, two figures or more are displayed.
c) When touching the pads, sometimes a pad produces no signal.
2. Control Unit
The following symptoms indicate a defective control unit. Replace the control unit.
2-l In connection with pads.
a) When touching the pads, a certain group of pads do not produce a signal.
b) When touching the pads, no pads produce a signal.
2-2 In connection with indicators
a) At a certain digit, all or some segments do not light up.
b) At a certain digit, brightness is low.
c) Only one indicator does not light up.
d) The corresponding segments of all digits do not light up; or they continue to light up.
e) Wrong figure appears.
f) A certain group of indicators do not light up.
g) The figure of all digits ficker.
2-3 Other possible troubles caused by defective control unit,
a) Buzzer does not sound or continues to sound.
b) Clock does not operate properly.
c) Cooking is not possible.
13
R-9380
TEST PROCEDURES (CONT’D)
PROCEDURE
LETTER COMPONENT TEST
K
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, and this fine pattern service as a substitute coil. If the foil pattern is open,
follow the troubleshooting guide given below for repair.
Problem: POWER ON, indicator does not light up.
ISTEPS I OCCURANCE
CAUSE OR CORRECTION
1
The rated voltage is not applied to POWER terminal Check supply voltage and oven main unit.
of CPU connector (CN-A)
2
The rated voltage.is applied to primary side of power Power transformer or secondary circuit defective.
transformer. Check and repair.
3
Only pattern at “a” is broken. ‘Insert jumper wire 31 and solder.
4
Pattern at “a” and “b” are broken. *Insert the coil RCILF2003YAZZ between “c” and
“d”.
NOTE:* At the time of these repairs, make 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.
*; _ -” :‘ i
.:, ‘I ^
x ^,
&u+$ ,‘i
*; _, L.,,
I :,
rLlr
‘** ,.^
,; ‘;’
‘-1: >:;
G&, :p;e
.‘?,‘.,I:, “I ;,,
:“\ @ N _ A
VRS$
i_ ,,
,<:g;;; 3
P
,&:?;,:,g ,I ‘,px*&;&; 2 a=,, ,,-*;$‘;
.,,, _,’
:
(RD8: KO4U)
14
TOUCH CONTROL PANEL ASSEMBLY
OUTLINE OF TOUCH CONTROL PANEL
The touch control section consists of the following
units as shown in the touch control panel circuit.
(1) Key Unit
(2) Control Unit
The principal functions of these units and the signals
communicated among them are explained below.
(RD91 lA3U)
Key Unit
The key unit is composed of a matrix, signals generated
in the LSI are sent to the key unit through P62, P63
and P70- P73.
-..-. .- When a key pad is touched, a signal is completed
through the key unit and passed back to the LSI
through PIO-PI3 to perform the function that was requested.
Control Unit
Control unit consists of LSI, power source circuit,
synchronizing signal circuit, ACL circuit, buzzer circuit
and indicator circuit.
(RD915BlU)
1)
2)
3)
LSI
This LSI controls the key strobe signal, relay driving
signal for oven function and indicator signal.
(RD916Al U)
Power Source Circuit
This circuit generates voltage necessary in the
control unit.
Svmbol Voltaae Aoolication
VDD
-12v LSI (ICI ), ACL circuit
VREF -6.15V LSI (ICI)
VP -26.5V Fluorescent display tube : Grid
and anode voltage
VF+
-15.2V F$rrent of fluorescent display
VF-
(VF+ to VF- voltage: AC 3.5V)
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
4)
ACL Circuit
A circuit to generate a signal which resets the LSI
to the initial state when power is supplied.
(RDSl SAl U)
5)
Buzzer Circuit
The buzzer is responsive to signals from the LSI
to emit noticing sounds (key touch sound and
completion sound).
6)
Stop Switch
A switch to “tell” the LSI if the door is open or
closed.
(RD91 BA2U)
7)
Relay Circuit
To drive the magnetron, fan motor, turntable motor
and light the oven lamp.
8)
Indicator Circuit
(RD91 AA1 U)
(RD91 CB2U)
Indicator element is a Fluorescent Display.
Basically, a Fluorescent Display is 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 6-digits, 13-segments are
used for displaying figures.
(RD91 DA1 U)
I
I
on commercial frequency.
(RD918Al U)
15
R-9380
DESCRIPTION OF LSI
LSI(IZA135DR)
The I/O signal of the LSI(IZA135DR) is detailed in the following table.
(RD93101 U)
I
.PINNO~~~.i1~~~~~..-~--.-_--~.__l~SIGIUAL_i~~~~3~--_
I
I/O
-
j OUT
Segment 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 drsplax.
(RD939Al )
PIN NO. ’ 5
----i-- -~~
Auto clear terminal..
SIGNAL j ACL
I
I/O
/ IN
Signal is input to reset the LSI to the..initial state when power is supplied.
Temporarily set to “L” level the moment power is supplied, at this time the LSI is reset.
Thereafter set at “H” level.
(RD93MAZU)
PIN NO.
/ 6
SIGNAL ) CL1
1
I/O
/--
/ IN
~-- .-
Internal clock oscillation frequencv input settina.
The internal clock frequency is set by inserting the ceramic filter oscillation circuit with respect to CL2 terminal.
(RD93EA2U)
PIN NO. 1 7
1 SIGNAL j CL2
----- -?-- --~
--
Internal clock oscillation frequencv control output.
Output to control oscillation input of CL1
I
I/O
1 OUT
(RD93EAl U)
PIN NO. 1 8
~--.--
Segment data siqnal.
Signal similar to P30.
SIGNAL / P40
I
I/O
I
I OUT
(RD939A2U)
PIN NO. 1 9
__l. ~~~-~~ _. ._~~~~~.~ _.___
SIGNAL ’ TEST
~~~ ---... --1--- --.- - ..-. ~~~--
Terminal not used. Connected to VDD.
I
I/O
1 IN
(RD93KA4U)
PIN NO. j IO-13
Segment-bata signal.
Signal similar to P30.
SIGNAL / P41 -P43,P50
I
I/O
OUT
(RD939A2U)
PIN NO.
1 14
~~~ --!- - .~
SIGNAL 1 P5l
-----L- ~-~~~ - .._~ ._________._
I/O
1 IN
___- -
Terminal to change functions according to the model.
Signal in accordance with the model in operation is applied to set up its function.
(Rd93JAl U)
PIN NO.
I 15
Terminal not used.
SIGNAL ; P52
---~~-...-- -.. .~~--
-~--~
(RD93KA2U)
16
R-9380
PIN NO. / 16
1 SIGNAL / P53
I
I/O
j IN
e.-i_----- ~.-.--~ _~~. -..-~
Terminal for manufacture test.
Normally terminal not used.
(FiD931A3U)
PIN NO. 1 17,16
1 SIGNAL
j P6o,P61
I/O
j IN
---
Terminal not used.
(RD93KA2U)
PINNO. 119
1 SIGNAL / P62
I/O
: OUT
--___-
_yi-----.---.
Kev strobe siqnal.
Signal applied to touch-key section.
A pulse signal is input to Pl O-P1 3 terminal while one of D-l line keys on key matrix is touched.
CRD93EAl U)
PIN NO. 1 20
Kev strobe signal.
1 SIGNAL j P63
I/O
1 OUT
-./
-.
Signal applied to touch-key section.
A pulse signal is input to PIO-PI3 terminal while one of D-2 line keys on key matrix is touched.
(RD93BAl U)
PIN NO. j 21
1 SIGNAL / P70
I
l/O I OUT
Kev strobe signal.
Signal applied to touch-key section.
A pulse signal is input to PlO-P13 terminal while one of D-3 line keys on key matrix is touched.
(RD93BAl U)
PIN NO. 1 22
1 SIGNAL 1 P71
I
I/O : OUT
Kev strobe signal.
Signal applied to touch-key section.
A pulse signal is input to PIO-PI3 terminal while one of D-4 line keys on key matrix is touched.
/ RD93BAl Ub
PIN NO. / 23
1 SIGNAL / P72
I I/O
! OUT
Kev strobe siQnal.
Signal applied to touch-key section.
A pulse signal is input to PIO-P13 terminal while one of D-5 line keys on key matrix is touched.
(RD93BAl U)
PIN NO. j 24
SIGNAL I P73 I/O 1 OUT
jam ~--.~ .~ ~~~~.
~~~
___._~
Kev strobe signal.
Signal applied to touch-key section.
A pulse signal is input to PIO-PI3 terminal while one of D-6 line keys on key matrix is touched.
(RD93BAl U)
PIN NO.
i 25
Terminal not used.
._
SIGNAL i KT
I/O
’ IN
iRD93KA2IJ)
PIN NO. / 26
1 SIGNAL
/ KI
1 I/O
IN
_----.-----. -...--.~_ -~ --~
_ ~~-. .-.
-.
Siclnal svnchronized with commercial source frequencv(50Hz).
This is the basic timing for time processing of LSI.
!RD93FEl U:
17
R -9380
I
PIN NO. 1 27
SIGNAL 1 SO
I
I/O
j OUT
Sinnal to sound buzzer.
A: Key touch sound (0.12 sec.).
B: Completion sound (2.4 sec.j.
(RD93LAl U)
PIN NO.
/ 28
__-__
1 SIGNAL j NC
I
I/O
/ NC
Terminal not used.
(RD93KAZU)
PIN NO.
/ 29
SIGNAL / VDD
I
I/O
-
/ IN
Power source voltaoe: -12V.
VDD voltage of power source circuit input.
(RD93GAl U)
PIN NO.
/ 30
---__
I -SIGNAL / ~80 I/O i OUT
Terminal not used.
(RD93KA2U)
PIN NO. 31
Terminal not used.
SIGNAL I P81
I
l/O
1 IN
(RD93KA2U)
PIN NO.
1 32
1 SIGNAL ! GND
I
I/O
/ IN
Connected to GND.
(RD93KAl U)
-PIN No. i .33--.-.-...----__.~~~~~--.- sl!L p82
Terminal not used. Connected to GND.
I
l/O
/ OUT
(RD93KA5U)
PIN NO. I 34
SIGNAL i P83
__-
Terminal not used. Connected to GND.
I
l/O
1 OUT
(RD93KA5U)
PIN NO. 135-38
SIGNAL j P90-P93
--
Terminal not used. Connected to GND.
I
I/O
1 OUT
(RD93KA5U)
PIN NO.
1 SIGNAL 1 PO0 j 39
Terminal not used. Connected to GND.
I
I/O
/ IN
(RD93KAW)
..‘NNO.i_~~--~---lSIGNAL I po1
I/O
1 IN
Terminal to chanqe functions 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 function.
(Rd93JA2U)
pt.~~N0,-.i~41-..--~--- .____ -- .SIGAL i po2
Terminal not used. Connected to GND.
I
I/O
IN
(RD93KA5U)
18
PIN NO. j 42
1 SIGNAL / PO3
I
I/O
/ IN
Terminal to chanqe functions accordinq 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 function.
(Rd93JAZU)
PIN NO. / 43
1 SIGNAL 1 PI0
I/O
j IN
_-__ ~~~_
~~~~~.I~~-~~~-----~~ _.._ ~_
Siqnal cominq from touch key.
When either one of D-l 1 line keys on key matrix is touched, a corresponding signal out of P70-P73,P63 and P62
will be input into PIO.
When no key is touched, the signal is held at “L” level.
(RD93CAl U)
PIN NO. 1 44
1 SIGNAL / PI1
I/O / IN
Siqnal cominq from touch key.
When either one of D-l 0 line keys on key matrix is touched, a corresponding signal will be input into PI lI;UgsCAZ,,j
PIN NO.
j 45
1 SIGNAL / PI2
I/O
-
i IN
Siqnal cominq from touch kev.
When either one of D-9 line keys on key matrix is touched, a corresponding signal will be input into PI 2.
(RD53CAZU)
PIN NO. 1 46
1 SIGNAL 1 PI3
~~ m~mL.--!/o..-.-.i IN ____. ~~~~~~ ~_..
.._
Siqnal cominq from touch ,kev.
When either one of D-8 line. keys on key matrix is touched, a corresponding signal will be input into PI 3.
(RD93CAZU)
PIN NO.
/ 47
Connected to GN D.
/
SIGNAL j AGND
l/O
! IN
_~- i -.~-~-~ .~. _.--~.- .--. .-~ ---..
I
(RD93KAl U)
PIN NO. / 48-53
Diqit selection siqnal.
1 SIGNAL
; PA9-PA4
I .-- -- L -~~~
l/O I OUT
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 fluorescenti$~;$qj
PIN NO.
j 54
1 SIGNAL / PA3
L-.-. ----
l/O
OUT
I. -..- --. . ..-1 -. ~~ _. ~~
Oven lamp, turntable motor and coolinq fan motor drivinq signal. (Square Waveform: 50Hz)
To turn on and off the control relay.
The pulse signal (50Hz) is delivered to the control relay driving circuit and cook relay control circuit.
cRDY32El U)
PIN NO.
/55
SIGNAL ; PA2
Magnetron Hinh-voltane circuit drivinn sinnal.
To turn on and off the cook relay.
I/O OUT
In HGH 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.
1,RD933Al ii)
19
R-9380
PIN NO. / 56
1 SIGNAL / VDISP
I
I/O
/ IN
Anode (seament) of Fluorescent DisDlav light-up voltage: -26.5V.
Vp voltage of power source circuit input.
(RD93GA3U)
PIN NO. j 57 SIGNAL 1 VR
Reference voltage input terminal.
I
I/O
/ IN
A reference voltage applied to the A/D converter in the LSI.
The reference voltage is generally maintained at -6.15V.
(RD93GA4U)
PIN NO. 58 1 SIGNAL j PA1
I
I/O
1 IN
Sinnal svnchronized with commercial source frequencv(50Hz).
This is the basic timing for time processing of LSI.
(RD93FEl U)
PIN NO. 1 59
1 SIGNAL j PA0
I I/O
/ IN
Input signal which communicates the door ooen/close information to LSI.
Door closed; “H” level signal.
Door opened; “L” level signal.
(RD937Al U)
PIN NO. 60-63
1 SIGNAL i P20-P23
I
I/O
/ OUT
Segment data siqnal.
Signal similar to P30.
(RD939AZU)
PIN NO. 64
1 SIGNAL / GND
I
I/O
1 IN
Connected to GND.
(RD93KAl U)
20
1.
2.
R-9380
SERVICING
Precautions for Handing Electronic
Components
This unit uses PMOS LSI in the integral part of the
circuits. When handling these parts, the following
precautions should be strictly followed.
PMOS 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 PMOS 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.
.
appmx. 1 MR
h
/
m
Shapes of Electronic Components
Transistor
DTA143ES
Regurator IC
IC2
AN79Ll2
8
ECB
Transisotr
DTCl14EA
1 : QUT Terminal
2 : COMMON Terminal
Hybrid !C
3 : IN Terminal
IC 3
3. Servicina 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 or 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 repiace the
leads ~0 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.
4.
Servicing Tools
Tools required when servicing the touch control
panei 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
For those models, therefore, check and repalr
all the controls (with the sensor-related ones
included) of the touch control panel while
keeping it in contact with the oven proper.
6. 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 opera-
tional 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 panei by using the dummy resistor(s).
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, eiectrolytic capacitors, etc.
to PWB, taking care that all connections are
tight.
5) Be sure to use speclfled components wnere
high precision is required.
R-9380
COMPONENT REPLACEMENT AND ADJUSTMENT PROCEDURE
WARNING: To avoid possible exposure to microwave
energy;
A. Before operating oven
1. Make sure that unlatching door slowly is accompanied by a click indicating actuation of
monitor switch and latch switch.
2. Check visually door seal for arcing and damage.
B. Do not operate oven until after repair if any of fol-
lowing conditions exist;
1. Door does not close firmly against front of appliance.
2. There is a broken door hinge or support.
3. The door is bent or warped.
4. There is any defective parts in the latch, oven
door or microwave generating and transmission
assembly.
5.
There is any other visible damage to oven.
C. Do not operate oven
1. Without the RF gasket.
2. If door is not closed.
(RDA1204U)
OUTER CASE. REMOVAL
To remove the components, proceed as follows.
1. Disconnect oven from power supply.
4. Lift entire case from the unit.
2. Remove screws from rear and along the side edge
CAUTION: DISCHARGE
HIGH
VOLTAGE
of case.
CAPACITOR BEFORE TOUCHING ANY
3. Slide the entire case back about 3cm to free it from
OVEN COMPONENTS OR WIRING.
retaining clips on the cavity face plate.
HIGH VOLTAGE COMPONENTS REMOVAL
(HIGH VOLTAGE CAPACITOR AND RECTIFIER ASS’Y WITH SHORT PROTECTOR)
To remove the components, proceed as follows.
1.
S:
4.
5.
6.
Disconnect oven from power supply and remove the
outer case.
Discharge high voltage capacitor.
Remove one (1) screw holding capacitor holder to
oven unit.
Remove, one (1) screw holding earth side terminal
of rectifier ass’y and remove capacitor holder.
Disconnect wire leads and terminal of rectifier and
short protector ass’y from high voltage capacitor.
a,
..I.
, . .
l\ow, rectmer assy IS Tree.
CAUTION: WHEN REPLACING RECTIFIER AND
SHORT PROTECTOR ASS’Y, EARTH
SIDE TERMINAL MUST BE SECURED
Short
protector
H.V. Capacitor
TRANS. -
MAG. c
TRANS. -
n
1.
2.
3.
4.
5.
1.
2.
FIRMLY WITH A EARTHING SCREW.
”
MAGNETRON REMOVAL
Disconnect oven from power supply and remove
outer case.
6. First lower the right-hand side of the magnetron
Discharge high voltage capacitor.
through duct.
Disconnect wire leads from magnetron.
7. Magnetron is now free.
Carefully loosen four (4) screws holding magnetron
CAUTION: WHEN REPLACING THE MAGNETRON,
to waveguide flange while supporting the
BE SURE THE R.F. GASKET IS IN PLACE
magnetron from below.
AND
MAGNETRON MOUNTING
Lower magnetron until is clear of the waveguide.
SCREWS ARE TIGHTENED SECURELY.
TURNTABLE MOTOR REMOVAL
Open the door and remove turntable and roller stay.
Turn oven unit up side down and remove two (2)
3. Disconnect wire leads from turntable motor.
screws holding turntable motor cover to bottom
4. Remove two(2) screws holding turntable motor and
side of oven cavity and base cabinet-right.
pull it out, at this time O-RING attaching with mo-
tor is removed.
22
R-9380
TURNTABLE COUPLING REMOV&L
I, Remove turntable
Motor Removal”.
2. Remove turntable
illustration.
motor and refer to “Turntable
TURN TABLE
COUPLING
coupling following in order on
BOTTOM
OVEN CAVITY
T.T. MOTOR
ANGLE
COOLING
FAN MOTOR REMOVAL
1. Remove wire leads from cooling fan duct.
2. Remove two (2) screws and tab on fan duct
ing to top oven cavity.
3. Pull fan blade out of cooling fan motor.
‘O-RING
Turntable Coupling
hold-
4. Remove two (2) screws and two (2) nuts holding
fan motor.
5. Now cooling fan motor is free.
CONTROL PANEL ASSEMBLY AND COMPONENTS REMOVAL
The complete control panel should be removed for re-
CONTROL UNIT AND/OR PANEL FRAME
1,
placement of the components. To remove the control
panel, proceed as follows:
1. Disconnect oven from power supply and remove
outer case.
2
2. Discharge high voltage capacitor.
3. Disconnect (A) and (B) connectors from the con-
3.
trol unit.
Push the holder of 12-pin connector (D) inward
and then pull it.
Remove the flat cable of key from the 12-pin connector (D).
Remove the five (5) screws holding the control unit
to the panel frame.
Panel frame and control unit are now free, separate
them.
4. Remove one (1) screw holding the control panel
frame to the oven cavity front flange.
5. Lift up the control panel frame to free the panel
hooks from the bottom opening of back plate.
6. Pull the control panel forward.
4
Replacement of individual component is as follows:
UPPER LATCH SWITCH AND MONITOR SWITCH REMOVAL
1. Disconnect oven from power supply and remove
outer case.
2. Discharge high voltage capacitor.
3. Disconnect wire leads from switches.
4. Remove one (1) screw holding the upper latch
hook to the oven caity flange.
5. Remove upper latch hook from flange by moving it
downward.
6. To remove the switch from upper latch hook, push
outward two (2) retaining tabs holding individual
switch in place.
LOWER LATCH SWITCH AND STOP SWITCH REMOVAL
1. Disconnect oven from power supply and remove
outer case.
2. Discharge high voltage capacitor.
3. Disconnect wire leads from switches.
4. Remove one (1) screw holding the lower latch
hook to the oven caity flange.
5. Remove lower latch hook from flange by moving it
downward.
6. Push outward two (2) retaining tabs holding individual switch in place.
7. Switches are now free.
23
R-9380
UPPER/LOWER LATCH SWITCHES AND
MONITOR SWITCH ADJUSTMENT
If the upper and lower latch switches and monitor
2. The upper and lower latch switches interrupt the
switch do not
operate proper!y due to a
circuit before the door can be opened.
mis-adjustment, the following adjustment should be
3. The monitor switch contacts close when the door
made.
is opened.
1.
2.
3.
4.
Loosen the one (1) screw holding the upper latch
4. Re-install outer case and check for microwave
hook to the oven cavity front flange and the one (1)
leakage around the door with an approved micro-
screw holding the lower latch hook to the same
wave survey meter. (Refer to Microwave Measure-
flange.
ment Procedure.)
With door closed, adjust lower latch hook by mov-
ing it back and forth and then adjust the upper latch
hook by moving it back and forth, or up and down.
In and out play of the door allowed by the upper
and lower latch hooks should be less than 0.5 mm.
The vertical position of the upper latch hook should
be placed where the upper latch switch and monitor
swatch have activated with the door closed. Vertical
adjustment of the lower latch hook is not possible.
Secure the screws with washers firmly.
Make sure of the upper latch switch operation. If
the upper latch switch has not activated with the
door closed, loose one (1) screw holding upper
latch hook to oven cavity front flange and adjust
upper latch hook position.
After adjustment, make sure of the following:
1. In and out play of door remains less than 0.5 mm
when latched position. First check upper latch hook
position, pushing and pulling upper portion of door
toward the oven face. Then check the lower latch
hook position, pushing and pulling lower portion
of door toward the oven face. Both results (plays
of the door) should be less than 0.5mm.
Figure C-l. Latch Switch Adjustment
LATCH HEAD REMAVAL DOOR DISASEMBLY
Remove the door assembly, refer to ithrough 5 of
“Door Replacemenmt”.
1. Place the door assembly on a soft cloth with facing
UP.
2. Insert an iron plate (thickness of about 0.5mm) to
the gap between the chorke cover and the corner
portion of door panel as shown figure to free the
engaging parts.
3. Lift up the choke cover.
4. Now the choke cover is free from the door panel.
5. Remove the latch spring from the door panel.
6. Pushing up the latch head. it is now free from door
panel.
Latch Head Remove and Door Disassembly
25
DOOR REPLACEMENT AND ADJUSTMENT
DOOR REPLACEMENT
1. Disconnect oven from power supply and remove
outer case.
2. Remove two (2) screws holding lower oven hinge.
3. Remove the oven hinge from the door.
4. Remove door assembly from upper oven hinge.
5. On re-installing door, insert the upper oven hinge
into the door hinge pin.
6. Insert the lower oven hinge into the door hinge pin.
Then while holding the door in place secure the
lower oven hinge firmly with the two (2) mounting
screws.
7. Make sure door is parallel with ven face lines (left
and upper side lines) and the door latch heads pass
through the latch holes correctly.
Note: After any service to the door;
(A) Make sure that the upper latch switch, and
lower latch switch switches 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.
DOOR ADJUSTMENT
The door can be adjusted by keeping the screws of
each hinge loose.
After adjustment, make sure of the following :
1. Door latch heads smoothly catch, the latch hooks
through the latch holes, and also the latch head
goes through the center of the latch hole.
2. Deviation of the door alignment from horizontal line
of cavity face plate is to be less than 1 .Omm.
3. The door is positioned with its face depressed toward the cavity face plate.
4. Re-install outer case and check for microwave
leakage around the 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 the oven cavity during
the cook cycle. This function does not require
that
the door be
air-tight, moisture
(condensation)-tight or light-tight. Therefore,
the occasional apperance of moisture, light or
the sensing of gentle warm air movement around
the oven door is not abnormal and do not of
themselves, indicate a leakage of microwave en-
ergy from the oven cavity. If such were the case,
your oven could not be equipped with a vent,
the very purpose of which is to exhaust the
vapor-laden air from the oven cavity.
LATCH HEADS
\
DOOR LEVER
Figure C-2. Door Replacement and Adjustment
25
R-9380
MICROWAVE MEASUREMENT
After adjustment of door latch switches, monitor
switch and door are completed individually or collectively, the following leakage test must be performed
with a survey instrument and it must be confirmed that
the result meets the requirements of the performance
standard for microwave oven.
REQUIREMENT
The safety switch must prevent microwave radiation
emission in excess of 5mW/cm2 at any point 5cm or
more from external surface of the oven.
PREPARATION FOR TESTING:
Before beginning the actual test for leakage, proceed
as follows;
1. Make sure that the test instrument is operating
normally as specified in its instruction booklet.
Important:
Survey instruments that comply with the requirement for instrumentations as prescribed by the performance standard for microwave ovens must be
used for testing.
2.
3.
4.
5.
6.
Recommended instruments are:
NARDA 8100
NARDA 8200
HOLADAY HI 1500
SIMPSON 380M
Place the oven tray into the oven cavity.
Place the load of 275 + 15ml of water initially at
20 f5 “C in the center of the oven tray. The water
container should be a low form of 600 ml beaker
with inside diameter of approx. 8.5cm and made of
an electrically non-conductive 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.
Close the door and turn the oven ON with the timer
set for several minutes. If the water begins to boil
before the survey is completed, replace it with
275ml of the cool water.
Move the probe slowly (not faster that 2.5cm/sec.)
along the gap.
The microwave radiation emission should be measured at any point of 5cm or more-from the external
surface of the oven.
(RDEllOBU)
26
r 1 1 2 1.--~--.3 4 5 ~.L ~: ~~.
t
220
--o=
w
6.
E
iI
k
.n
it
‘I
0
z
ii
F
ci,
2
s
ii
R-9380
IA
I
I
/
/
/
/
L
C
0
k
/E
/
/
IF
!
I
IG
/
I
I
,
IH
I
I --- ..'------2---- I . . .._ _..... 1 3 4
5
6
I
I
27
R-9380
TW- ‘
3 N
, p&g@.
i’i #I ! cyliK
3
f”-
e
m
”
till90 I ii.
L4F --p+-
F,
:8
,*o
i+ l -?’
080
““Wb”’ “-,
; 1
-t,
1
2
-~
-__
1
2 3
4 5 6
28
R-9380
1
2
3
I
4
5
6 >
,.
6%
1
k ‘a-se.”
L li ;::y
A
,----
_.--
p$- i”i::;;:
I iIIII
!I
mm
P
I
Kg
c:>B
n&i
‘e
L 11’
’ I
“P ,,.
*--*“&.Ry2 R,
T--y
I I
” v,
T,
I
-1311
-...-
2
q--- -
f ~m+A “RSI
1
2
I
3
Figure S-3. Printed Wiring Board
29
PARTS LIST
Note : The voltage supplied to the parts I’*” are greater than 25OV.
* Refer to “REPLACEMENT PARTS LIST” described after PARTS LIST.
REF. NO.
PART NO.
DESCRIPTION
1 Q’TY 1 CODE
ELECTRICAL PARTS
l- 1
l- 2
I- 3
l- 4
l- 5
l- 6
l- 7
l- 8
l- 9
l- 10
I- 11
l- 12
l- 13
I- 14
l- 15
l- 16
l- 17
l- 18
QACCAAOI 8WRE0 Power supply cord
1
QFS- COO1 9WREO
AQ
Fuse (M6.3A)
1
QFSHDA002WREO
AE
Fuse holder
1
AE
QFS- TAO1 OWREO
Temp. fuse (115 “C)
QSOCLAOOl WREO Oven lamp socket
1
AG
QSW- MAOO7WREO
AH
Upper and lower latch switch (V5230D)
2
QTANN0033WREO
AF
Cord connector
1
QSW- MAOO9WREQ
AD
Monitor switch (V5220D) 1
RMOTEA082WREO
AF
Cooling fan motor
1
RMOTDA055WREO
AW
Turntable motor
1
RTRN- Al 53WRE0
AS
Power transformer
1
RC- QZAO55WREO
BK
High voltage capacitor
1
FH- DZAOO5WREO
AW
Silicon rectrfier and short protector ass’y
1
RV- MZAO56WREO
AQ
Magnetron
1
QS W- MAO 1 5 WR E 0
BG
Stop switch (V-5330DK)
1
AG
RTHM- A01 5WRE0 Thermal cut-out
1
AG
RR- WZAOO3WREO
Monitor resistor
0.8 fl
2ow
1
AG
RLMPTOOl 8WRE0
Oven lamp
1
AN
CABINET PARTS
2- 1
GCABUAI 52WRP0
Outer
case cabinet
1
2- 2
TMAPCA317WRRO
BA
Schematic
diagram
1
2- 3
GDAi - AO87WRWO
AB
2-
Base cabinet-right
1
4
AP
LANGK0243WRWO
Capacitor holder
2- 5
GLEGP0021 WREO
AC
Foot
2- : 6
LSTPP0065WRFO
AB
Cord
anchorage (upper)
1
2- 7
AA
LSTPP0066WRFO
Cord
1
2-
anchorage (lower)
8
AA
LANGQ0382WRMO
Earth angle
1
AA
3- 1
3- 1A
3- 1B
3- IC
3- 1D
Cl
c2
c3.c5
c4,c5o,c92
c20
c21 ,c93,
c94
c90-,c91
CF90
Dl
D2
D50. D80
D81, D82
Fl
ICI
IC2
lC3
a20
Q30.
Q80
Rl
R2
R3,R83
R4
R20.R21,.
R72- R77
R30. R50
R41
R42
R70
CPWBFAO98WRKC
QCNCMA078DREC
QPLGJ2255DREC
QCNCWA030DREC
RV- KXAOOSDREC
RC- KZAO32DREC
RC- EZA071 DREO
RC- EZ476QDREO
RC- KZI 03SDREO
RC- EZ225SDREO
RC- KZA004DREO
RC- CZ221 SDREO
RCRS- A007DREC
RSRCDA007DREc
RH- DZAOl 1 DRE(
RH- DZAO24DREc
RH- DZAO24DREC
QFS- AA005DREC
RH- i ZAl 35 DREC
RH- i XA002DREC
RH- i X241 3DREC
RH- TZA042DREC
RH- TZOO27WREC
Control unit
4-pin connector (A)
3-pin connector (B)
12-pin connector (D)
Fluorescent display tube
Capacitor 0.1 uF
Capacitor
1000 uF
Capacitor 47 yF
Capacitor
0.01 uF
Capacitor
2.2 uF
Capacitor 0.015 uF
Capacitor
22OpF
Ceramic filter KBR400B (400KHz)
Diode bridge (Sl WBAl 0)
Diode (11 ES1 )
Diode (US1 060M)
Diode (US1 060M)
Fuse(lCP-NlOS))
LSI
IC (AN79L12)
.IC (1X2413)
Transistor DTAI 43ES
Transistor DTCI 14ES
RR- DZGR8NDREO
RR- SZ331 RDREO
RR- DZl 11 PDREO
RR- DZ821 NDREO
RR- DZI 03NDRE0
Resistor
Resistor
Resistor
Resistor
Resistor
6.8 n
330 a
110n
820 a
10kf-l
RR- DZ332NDREO Resistor
3.3k Q
RR- DZ473NDREO
Resistor
47k Q
RR- DZ303NDREO
Resistor
30k Q
RR- DZA026DREO
Resistor block (150k Q x 4)
CONTROL PANEL PARTS
30
5ov
35v
25V
5ov
5ov
25V
5ov
1/4w
lW
1/2w
1/4w
lf4W
114w
1/4w
lf4W
1
1
1
1
1
1
1
2
3
i
2
1
1
1
2
2
1
1
1
1
1
2
1
1
2
1
8
2
1
1
1
BS
AC
AC
AE
AX
AB
AD
AB
AA
AA
AA
AB
AF
AD
AB
AA
AA
AE
AV
AE
AM
AB
AC
AA
AA
AA
AA
AA
AA
AA
AA
AB
R-9380
Note
REF. NO
R78-R81
R82
R90
RYI ,RY2
SPl
Tl
VRSl
ZDI ,ZD2
ZD3
ZD20
3- 2
3- 3
3- 4
3- 5
3- 6
4- 1
4- 2
4- 2A
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- 16A
4- 17
4- 18
4- 18A GLEGP0021 WREO
4- 19
PCUSGAl 55WREO
4- 20 GFTARAOOl WRWO
4- 21
PFi LWAO27WRPO
4- 22
MHNG- Al 2 2 WRMO
4- 23
PCUSGAl 54WRP0
RALM- A007DREO
Buzzer.
RTRNPA024DREO
Transformer
RH- VZAOl ODREO
Varistor (156471 K-T)
RH- EZA084DREO
Zener diode (HZ7C-1)
RH- EZ0009DREC
Zener diode (HZ6C2)
RH- EZA029DREC
Zener diode (HZ9A-3)
DUNTKA202WRKO
Key unit
HPNLCA438WRFO
Control panel frame
J BTN- A358WRFO
Open button
MSPRDA003WREO
Button spring
XHPSDBOPl 2XS0
Screw: Control unit mtg
The voltage supplied to the parts ,,*” are greater than 250V.
+I Refer to “REPLACEMENT PARTS LIST” described after PARTS LIST.
PART NO.
DESCRIPTION
RR- DZ223NDREO
Resistor
22k R
lf4W
RR- DZ91 OPDREO
Resistor
91 n
112w
RR- DZl 05NDRE0
Resistor
lMf2
1/4w
RRLY-AOlBDREO
Relav (OMI-SH-112D)
L
DOVN- Al 37WRT0
DOVN- Al 7 1 WRTO
FROLPA029WRKO
NROLPAOl 2WRE0
NTNT- A001 WRFO
PCOVP0279WREO
PCLi CQOOlYBEO
NCPL- A01 5WRF0
PPACGAOl 7WRE0
MHNG- Al 2 1 WRMO
PHOK- AO32WRFO
PHOK- AO33WRFO
MLEVPAO96WRFO
MSPRTOI OOWREO
FDUC- Al 09WRYO
PDUC- A21 4WRF0
PDUC- A21 6WRF0
FFANJ0031 WRKO
LSTY- 003OWREO
PCOVPAl 30WRP0
DDAi - Al 17WRKO
FDAi - A061 WRKO
L
OVEN PARTS
Oven cavity (Till 71 O////l of serial No.)
Oven cavity (After 71 I///// of serial No.)
Turntable support ass’y
Turntable roller
Turntable tray
Waveguide cover
Clip
Turntable coupling
O-Ring
Upper oven hinge
Upper latch hook
Lower latch hook
Door open lever
Button spring
Steam duct ass’y
Fan duct
Magnetron duct
Fan brade ass’y
Fan retainer
Turntable motor cover
Base cabinet-left (attached with foot)
(Till 71 O///// of serial No.)
Base cabinet-left (attached with foot)
(After 711///// of serial No.)
Foot
Vibration proof cushion
Oven lamp access cover
Oven lamp filter
Lower oven hinge
Cushion
DOOR PARTS
Q’TY CODE
4
1
1
2
1
1
:
1
1
1
1
1
1
5
AA
AA
AA
AM
AF
AS
AE
AA
AA
AA
AY
AK
AD
AA
AA
L
1
1
1
3
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
2
1
1
1
1
1
6-
1 QW- QZAO66WREO
6-
2 QW- QZAO67WREO
High voltage wire A(Trans.-Capa.)
6-
3 FW- VZA427WREO
High voltage wire B( Msg.-Capa.)
Main wire harness
6-
4 TCADCO22OWRRO
Cook book
6-
5 Ti NSEA306WRRO
6-
6
Operation manual
TSPCNA694WRRO
6-
7 TCAUHOI
Name plate
14WR’RO
6-
Caution label
8 FW-VZA457WREO
Stop switch harness
5
CDORFA246WRKO
5- 1
Door assembly, con rplete
DDORFAl
8OWRYO
Door panel
5- 2
GCOVAAl
05WRRO Door screen
5- 3
GCOVAAI 26WRF0 Choke cover
5- 4
FANGKA068WRYO
5- 5
Latch angle
LSTPPAOl
2WRF0
5-
Upper latch head
6
LSTPPAOl
3WRF0 Lower latch head
5- 7
MLEVFA008WRPO
Latch lever
5- 8
MLEVFA020WRFO
Head lever
5- 9
1 MSPRT0059WREOj
Latch spring
1
MISCELLANEOUS
BL
BL
AL
AC
AV
AF
AA
AD
AB
AD
AE
AE
AD
AA
AL
AH
AF
AF
AA
AF
AP
AP
AF
AF
AC
AB
AD
AA
BM
BM
AZ
AL
AL
AC
AC
AB
4c
AC
AE
AD
AU
AY
AD
AC
AC
AE
31
R-9380
Note : The voltage supplied to the parts l*” are greater than 250V.
-k Refer to “REPLACEMENT PARTS LIST” described after PARTS LIST.
REF. NO.1
PART NO.
DESCRIPTION
SCREWS, NUTS AND WASHERS
1 Q’TY 1 CODE
7- 1
7- 2
7- 3
7- 4
7- 5
7- 6
7- 7
7- 8
7- 9
7- 10
7- 11
7- 12
7- 13
7- 14
7- 15
7- 16
7- 17
7- 18
7- 19
7- 20
XOPSD50Pl 2KSO Screw ; lower oven hinge mtg. 2 AA
XBPSD50PlOKSO Screw ; power transformer mtg. 2 AA
XOTSD40Pl 2000 Screw : cooling fan motor ass’y, magnetron duct mtg. 3 AA
LX- EZAOO4WREO Screw ; upper and lower latch hooks mtg.
2
AA
LX- CZOl 74WRE0 Screw ; open lever mtg.
1
AA
XFPSD30P14000 Screw ; cord connector mtg. 1 AA
X F P S 04 0 P 1 0 0 0 0 Screw ; magnetron mtg. 4 AA
XHTSD40P08RVO
Screw ; High voltage capacitor holder, monitor resistor, 3 AA
oven lamp access cover mtg.
XFPSD40Pl OK00 Screw ; turntable motor cover mtg. 2
XFPSD40Pl 0000 Screw ; turntable motor mtg. 2
2
XFPSD40P08KOO
Screw ; earth angle, stop switch harness grounding wire mtg. 3
AA
silicon rectifier ass’y mtg.
XOPSD50P12KSO Screw ; upper oven hinge mtg. 2 AA
LX- BZAO36WREO
Screw ; outer case cabinet mtg. 8
AA
X DT S D4 0 P 1 2 RV 0 Screw ; control unit, base cabinet (right) and (left) mtg. 6 AA
XBPSD40P25000 Screw ; cooling fan motor mtg. 2 AA
XFPSD30P08XOO Screw ; oven lamp socket mtg. 1 AA
XHPSD40P22000
Screw ; cord anchorage (upper) and (lower) mtg.
1
AA
XFPSD30PlOOOO Screw ; fuse holder mtg. 1 AA
XWWSD50-06000 Washer ; power transformer mtg. 1 AA
XNESD40- 32000 Nut ; cooling fan motor mtg. 2 AA
HOW TO ORDER REPLACEMENT PARTS
To have your order filled promptly and correctly, please furnish the following information.
1. MODEL NUMBER 2. REF. NO.
3. PART NO. 4. DESCRIPTION
(RDP1303U)
32
REPLACEMENT PARTS LIST
This replacement parts list shows interchangeability of marked ( * ) parts on the control panel parts to the alterations
of product locations.
This list has been prepared to show LISTED PART NO. along with the USED PART NO. side by side.
LISTED PART NO.
USED PART NO.
VCEAAHI VMl 08M
RC- EZA476DREO VCEAAAl EW476M
RC- KZlOBSDREO VCKZPUI HF103Z
RC- EZ225SDREO VCEAAUl HM225M
RC- KZA004DREO VCKYATl EXI 53N
(RDQllOlU)
REF. NO. / LISTED PART No.
i
USED PART NO.
NOTE :
Common resistors have been omited from this parts list, such as 1/4W and 1/2W carbon resistors below is a com-
patibility list and cross referrence information.
PART CODE LISTED PART CODE COMPATIBLE
i
DESCRIPTION
A
RR-DZlOBNDREO VRD-STZDFlOSJ
/ 1/4W 1 Ok 0 small shape carbon film
B
’ RR-DZlOZDDREO
VRD-STZEFIOZJ
&iiKiiiZGbanf
RR--DZlOl PDREO
__-_.
j----.-
C VRD-STZHAl 01 J
I l/ZW 100 R carbon film.
t 1
I
PART CODE LISTED
“1.D: Carbon film resistor.
“2.N :
1/4W and small shape.
D: lf4W.
P: 1/2w.
l 3.D : Carbon film resistor.
“4.D : 1/4W and small shape.
E: 1/4w.
H:
1/2w.
(RDQllOZU)
33
1
~_ :~
2 3 4 I 5 6
~_ . --. ~~~ _.___.. -...
i----.----~--- I--. i
OVEN PARTS
L
4
4
5
b
34
i
A
B
C
D
E
F
G
~
H
1
1 / 2 / 3 1 4 1 !i / 6
CABINET PARTS
1
2
,
3
I 4 / 5 I 6
35
1
2 I 3
4
I
5
6
CONTROL PANEL PARTS
4
B
:g
:-
@
a
/
B
A
D
E
F
G
H
1
2
I
3 4
I
5
6
36
R-9380
-
A
B
C
D
E
F
G
~
H
1
2
3
4
5
6 1
DOOR ASSEMBLY
A
B
c
D
MISCELLANEOUS
ICAP.)
(CAP)
(TRANS.)
E
(MAG.)
F
G
IH
1
2 3
4
5 6
37
R-9380
PACKING AND ACCESSORIES
INSTRUCTION BOOK
DoOR PROTECT,ON SHEET
(SPADP0338WREO)
PACKING ADD KIT
lCPADEAO55WRKOj
3
4
I
5
6
‘87 0 SHARP CORP. (1 ON0.75E) Printed in Australia
38
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