Page 1
W Service Manual
SHARP .
IMICROWAVE OVEN
R-8200E
In the interests of user-safety the set should be
restored to its original condition and only parts
identical to those specified used.
Page 2
Page 3
‘3:
TABLE OF CONTENTS
SERVICE MANUAL
SHARP
PRODUCT DESCRIPTION
‘RQ
:
R-8200E
FOREWORD
This service manual is prepared to provide Sharp service
personnel with complete service information on Sharp
Microwave Oven.
Basic, general information for Sharp Microwave Ovens is
given in the GENERAL service manual.
Therefore, to permit them to give satisfactory customer
service, it is recommended that service personnel first study
the entire text of GENERAL manual, and then carefully
study this book.
CAUTION
MICROWAVE RADiATlON
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.
SHARP CORPORATION
OSAKA, JAPAN
OPERATION
-q
k;
SERVICING
‘2
COMPONENT
REPLACEMENT AND
ADJUSTMENT
f MICROWAVE MEASURMENT
SCHEMATIC DIAGRAM
- y?
.il
PARTS LIST
Page 4
TABLE OF CONTENTS
Page
FOREWORD .........................................
1
CAUTION, MICROWAVE RADIATION
..............................
1
THUMBINDEX ........................................
2
CHAPTER I PRODUCT DESCRIPTION
..............................
4
Specifications
.......................................
4
CHAPTER11 OPERATION
....................................
5
Normal Cooking Sequence
..................................
5
Description of Operating Sequence
..............................
5
Off Condition
....................................
5
Idle Condition
....................................
5
Cooking Condition
..................................
6
Microwave Cooking Condition
...............................
6
Browning Condition
.................................
6
Description and Function of-Components
............................
8
Primary and Secondary Interlock Switches (Upper and Lower Latch Switches)
............
8
Sheath Heater
....................................
8
Variable Cooking Control
................................
8
Monitor Device
....................................
9
CHAPTER III SERVICING
...................................
11
Troubleshooting Guide
...................................
11
Test Procedures
......................................
13
Magnetron Assembly Test
................................
13
Power Transformer Test
................................
13
Primary Interlock Switch (Upper Latch Switch) Test
.....................
14
Secondary Interlock Switch (Lower Latch Switch) Test
....................
14
Therm0 Cut-out Test
.................................
14
Vari-switch Test
...................................
I4
Vari-motor Test
...................................
14
Browning Element Test
................................
14
Surge Limiting Relay Test
................................
15
CHAPTER IV CGMPONENT REPLACEMENT AND ADJUSTMENT PROCEDURES
.............
16
Warning
.........................................
I6
Outer Case Removal
....................................
16
Turntable Motor Removal
..................................
17
Fan Motor Removal
....................................
17
High Voltage Capacitor Removal
...............................
17
Silicon Rectifier Removal
...................................
17
Power Transformer Removal
..................................
17
Oven Therm0 Cut-out Removal
................................
17
Magnetron Assembly Removal
................................
18
Vari-motor Removal
....................................
20
Vari-switch Removal
....................................
20
Control Panel and Components Removal
............................
20
Cook Switch
.....................................
20
Microwave and Browner Timers
.............................
20
Microwave and Browner Indicator Lights
.......................... 20
2
Page 5
Latch Assembly and Components Removal
...........................
21
Primary Interlock Switch (Upper Iatch Switch)
.......................
21
Secondary Interlock Switch (Lower Latch Switch)
......................
21
Latch Assembly Adjustment (Primary and Secondary Interlock Switches Adjustment) ...........
22
Door Replacement and Adjustment
..............................
23
Sheath Heater Replacement
. .
Sheath Heater Removal
.
Sheath Heater Re-installation
Heater Cable Adjustment
.
MICROWAVE MEASUREMENT . .
Requirement . . . . . . . .
Preparation for Testing . . . .
SCHEMATIC DIAGRAM
. . .
Continental Europe Model . . .
South African Model . . . . .
Australian and U.K. Models
. .
RELAYCONNECTION . . . . . .
PARTS LIST . . . . . . . . . .
...............................
24
...............................
24
..............................
24
...............................
25
...............................
26
...............................
26
................................
26
...............................
27
...............................
27
...............................
28
...............................
29
...............................
30
........................
..-
.....
31
Page 6
CHAPTER I
PRODUCT DESCRIPTION
SPECIFICATIONS
ITEMS
Power requirement
DESCRIPTION
220/24OV (decided with a rating plate)
50Hz
Single phase, 3 wire earthed
Power consumption
Microwave output power
Browning output power
Case dimensions
Width
Height
Depth
Cooking cavity dimensions
Width
Height
Depth
Control Complement
Browner Adjustable Height System
Weight
1.4kW
600W (2 litre water load)
1.3kW
600mm
420mm including feet
5 1Omm including cord holder and excluding door open lever
380mm
220mm with tray installed
390mm
Cook Switch
36 min. Dual speed timer (Microwave timer)
24 min. Single speed timer (Browner timer)
_
Variable Cooking Mode Selector
Repetition Rate:
FuII Power . . .
Full power through out the cooking time.
Defrost
. . . . . . . . 9 sec. ON, 21 sec. OFF, 30% of full power
Simrner . . . . . . . .
15 sec. ON, 15 sec. OFF, 50% of full power
Roast . . . . . . . . . . . 21 sec. ON, 9 sec. OFF, 70% of full power
Yes
Approx. 42kg
4
Page 7
CHAPTER II
OPERATION
NORMAL COOKING SEQUENCE
To start cooking;
Microwave
1.
Turn the main switch ON.
(Continental Europe and South African Models only.)
2.
Set the browner position control knob fully to the left.
Now the browner heater is placed at the highest
position.
3. Place the food to be cooked in the oven and close the
door firmly.
4. Set the variable cooking mode selector for a desired
position.
5. Set the microwave timer for a desired cooking time.
The oven light will come on and the fan motor will
rotate immediatedly.
6. Depress the cook button. The microwave indicator
light will glow to indicate that the oven is in the
microwave cooking cycle, and the turntable motor and
vari-motor will operate.
7.
At the end of the microwave cooking cycle (microwave
timer returns to “0”) the indicator light will go out
and the timer bell will ring once. The oven will stop
supplying the microwave energy.
Browing
1.
Turn the main switch ON.
(Countinental Europe and South African Models only.)
2. Set the browner position control knob to fully left,
and open the door.
3.
Place the food to be heated in the oven and close the
door firmly.
4.
Select the browner control knob for a desired position.
5.
Be sure the microwave timer is at “0” position and set
the browner timer for a desired cooking time. At this
time the oven light will come on and the fan motor will
rotate immediately.
6. Depress the cook button. The browner indicator light
will glow to indicate that the oven is in the browning
cycle and turntable motor will operate.
7. At the end of the browning cycle, the timer signal bell
will ring once and the heater will turn off.
8.
To open the door, the browner position control knob
has to be placed fully to the left.
Notes: 1. The door cannot be opened without setting
the browner heater at the highest position,.
2. If the oven door is opened during the cooking
operation, the oven will go out of the cook
cycle and the timer will stop. This is done so
the exact cooking time remains on the timer.
To restore cooking operation, the door must be
closed and cook button must be depressed.
3. When both the microwave timer and the
browner timer are set, the oven will supply
the microwave energy first. In this case the
browning heater will turn on when the microwave timer returns to “0”.
4. One or both timers can be set;
A) If microwave cooking is desired, set only
the microwave timer and depress the cook
button.
B) If microwave cooking is desired first and
browning immediately after, set both timers
for the desired times.
MIC*ROWAVE
COOKING
ALWAYS
TAKES PLACE FJRST WHEN BOTH,
TIMERS ARE SET.
C) If browning is desired first and then micro-
wave cooking, set only browner timer. The
microwave timer should be set after browning cycle is completed.
DESCRIPTION OF OPERATING SEQUENCE
The following is a complete description of component
functions during the three stages of oven operation.
Note:
The following operations are refer to the Continental Europe Model and the others are quite
similar in each model.
OFF CONDITION
With the main switch turned on, the timer at “0” position
and the door closed, no component in the oven will
operate. But the oven light will turn on when the door is
opened.
IDLE CONDlTION
Closing the door activates both interlock switches; primary
interlock (upper latch) switch and secondary interlock
(lower latch) switch.
Selecting a cooking time closes the microwave or/and
browner timer contacts leading to the oven light and fan
motor therefore the oven light turn on and the fan motor
rotates.
5
Page 8
COOKING CONDITION
MICROWAVE COOKING CONDITION
The followings are the complete microwave cooking
operation; (Figure 1.)
A. Full Power Condition
When the variable cooking mode selector is set fully
right (“Full Power” position) and the cook switch
is depressed, the following operation occurs;
A-l.The turntable motor, microwave timer motor,
microwave indicator light and vari-motor are
energized.
A-2.The surge limiting relay is energized through the
vari-swi tch.
A-3. The 220 volts A.C. is supplied to a primary
winding of the power transformer through the
vari-switch and surge limiting relay contacts (15)
(16).
A-4.The power transformer converts 3.2 volts A.C.
output on the filament winding and approximately
2400 volts A.C. on the high voltage winding.
A-5.The 3.2 volts A.C. output from filament winding
heats the magnetron filament.
A-6.The 2400 volts A.C. output from the secondary
winding is sent to a voltage doubler circuit
consisting of a high voltage capacitor and a silicon
rectifier.
The 2400 volts A.C. is converted to approximately
4000 negative D.C. voltage (peak to peak) by the
voltage doubler circuit and sent to the magnetron
assembly.
A-7.The negative 4000 volts D.C. is applied to the
cathode of the magnetron tube. This causes it to
oscillate and produce a 2450 MHz cooking frequency.
A-8.The RF energy produced by the magnetron tube is
channeled through a waveguide into the cavity
feedbox, and then into the cavity where the food
is placed to be heated.
A-9.Upon completion of the selected cooking time, the
timer bell rings once and the timer switch is
deactivated. The oven is reverted to the off
condition.
B. Defrost, Simmer and Roast Condition
When the cook switch is depressed and the variable
cooking mode selector is set to “DEFROST”,
“SIMMER” or “ROAST” position, the following
operation occurs;
B- 1. Above A- 1, A-2 and A-3 operations occur.
B-2.The vari-motor rotates at (2) r.p.m. In case the
mode selector is set at “DEFROST”, the 220
volts A.C. is supplied intermittently to the surge
limiting relay through the vari-switch and the
power transformer through the vari-switch and
surge limiting relay contacts (lS)-( 16).
The vari-switch ‘is operated, at a 9 seconds ON
and 21 seconds OFF repetition rate, by means of
the cam provided on the vari-motor shaft.
The repetition rate for others are as follows;
SIMMER: 15 seconds ON, 15 seconds OFF
ROAST:
21 seconds ON, 9 seconds OFF
B-3. The 3.2 and 2400 volts A.C. outputs are converted
while the 220 volts A.C. is supplied to the power
transformer.
B-4. Then above A-5, A-6, A-7, A-8 and A-9 operations
occur.
BROWNING CONDITION
When the browner timer is set and the cook switch is
depressed, the following operation occurs;
2-1. The turntable motor, browner timer motor and
browner indicator light are energized.
2-2. The 220 volts A.C. is supplied to the browning
element.
2-3. Upon completion of the selected cooking time, the
timer bell rings once as the timer switch is
deactivated and the oven reverts to the off condi-
tion.
Note: When both microwave and browner timers are set,
microwave energy is produced first. In this case,
the browning element will be activated when the
microwave timer returns to “0” position.
Page 9
SECONDARY
INTERLOCK
SWITCH
AC220~
50Hz
------------------_____
MAIN SWITCH
OVEN THERM0
M.AGNETRON
THERM0 CUT-OUT
---------
COOK SWITCH
PRIMARY INTERLOCK
(UPPER LATCH)
PROTECTOR
SCHEMATIC
NOTES: CONDITION
OF OVEN
1. MAIN SWITCH “ON”
2. DOOR CLOSED
3. MICROWAVE TIMER
Figure 1. Oven Schematic - Cooking Condition
(Continental Europe Model)
4. BROWNER TIMER “OFF”
5. COOK SWITCH “ON”
6. VARIABLE COOKING MODE
“FULL POWER”
7
Page 10
DESCRIPTION AND FUNCTION OF COMPONENTS
PRIMARY AND SECONDARY INTERLOCK SWITCHES
(UPPER AND LOWER LATCH SWITCHES)
The primary interlock switch (upper latch switch) is
mounted in the upper latch hook and the secondary
interlock switch (lower latch switch) is mounted in the
lower latch hook. They are activated by the latch on the
door.
When the door is opened, the switch interrupt the circuit to
all components except the oven light and fan motor. A
cook cycle cannot take place until the door is firmly closed
thereby activating both switches.
The sheath heater is provided for browning the food. In
order to give browning to the various foods speedily and
efficiently, the heater position can be adjusted by moving
the browner position control knob.
Upper
Latch
Hook
Lever Assembly
SHEATH HEATER
VARIABLE COOKING CONTROL
The variable cooking control consists of the vari-motor,
vari-switch, gear, select lever bracket assembly, etc.
The purpose of the vari-motor is provided to rotate a cam
which is going to turn the vari-switch on and off within a 30
seconds time base.
The vari-switch is operated by the cam lever and cam which
is provided on the vari-motor shaft. If the variable cooking
mode selector is set at DEFROST, SIMMER or ROAST
position. 220/240 volts A.C. is supplied to the power
transformer intermittently within a 30 seconds time base. A
half (l/2) of full power would be 15 seconds of the switch
on and 15 seconds of off time.
The following chart shows the vari-switch operation in the
various modes.
La1
Primary
interlock
\
Upper
Latch
Hook
Wire
Holder
Figure 2. Latch Assembly
Page 11
ON
DEFROST 1
9 Seconds
I
OFF (21 sec.)
Microwave Power = 30%
SIMMER
ON
15 Seconds
OFF (15 sec.)
Microwave Power = 50%
ON
ROAST
21 Seconds
Microwave Power = 70%
Microwave Power = 100%
I-- 30 Seconds W
MONITOR DEVICE
By utilizing the structure of cook switch and lock device
the monitor device is so designed as to prevent the door
from opening when the contacts of the cook switch melt.
Accordingly, microwave energy is not produced with the
door open, preventing hazard.
The function of the monitor device is as follows.
1. If the door is closed and the cook button is depressed,
the contacts of the cook switch close, which allows the
switch lever to be fixed by the switch stopper, keeping
the contacts of the cook switch closed.
2. If the door open lever is pushed down during cooking
cycle, it pushes up the switch stopper, which releases
the cook switch lever.
Accordingly, the contacts of the cook switch open,
causing the cook cycle to stop. (Refer to Figure 3.)
3.
If the door open lever is further pushed down, the lock
lever is pushed up, actuating the latch lever to open the
door. (Refer to Figure 3.)
4.
In case the contacts of the cook switch melt, the cook
switch does not turn on to open even if the switch
stopper is released by pushing the door open lever.
Accordingly, even if the door open lever is intended to
push down further, the lock lever is stopped by the
switch lever, preventing the door from opening. (Refer
to Figure 4.) If such a condition is encountered, it is
necessary to turn the timer to “0” position and replace
the cook switch.
Page 12
COOK SWITCH
SWITCH LEVE
DOOR OPEN
COOK SWITCH
CONTACTS
Figure 3. MONITOR DEVICE
(Normal Operation)
r-AA,/ c-l.11-l-~l 6
III a
LUUR 3VVI I Ll-l
LATCH
LEVER
LOCK LEVER ---bi.+.+;:1_-::: .::‘;
SWITCH LEVER
DOOR OPEN
LEVER
\
M’E LTE D
CONTACTS
Figure 4. MONITOR DEVICE
(Operation when the Contacts of Cook Switch Melt)
10
Page 13
CHAPTER III
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 number which will be found in the “Test
Procedure and Adjustment” section on GENERAL or this
service manual.
IMPORTANT: If the oven door could not be opened
because of the function of monitor device,
check the cook switch and replace it if
necessary.
PROBLEM
POSSIBLE CAUSE
TEST PROCEDURE OR
CORRECTION
OFF CONDITION
Line fuse blows when power cord is
plugged into wall receptacle.
Shorted wire in power cord or wire harness. Replace cord or check wiring.
Oven light does not light with door
opened.
No power from service entrance. Check wall outlet
(Timer is at “0” position and main
switch is turned on.)
Open wire in power cord or wire harness.
Defective main switch.
(South African and Continental Europe models
only)
Replace same or repair wiring.
Replace.
Blown fuse. Check for short circuit and replace
fuse.
Defective noise filter.
(South African and Continental Europe models
only)
Replace.
Defective oven therm0 cut-out.
Defective magnetron therm0 cut-out.
Defective oven light.
Defective secondary interlock switch
(lower latch switch).
Procedure 5.
Procedure 5.
Replace.
Procedure 4.
Open or loose wire connection to the above
components.
Check wiring.
Fan motor does not rotate, but oven
light lights.
Defective fan motor.
Replace.
Open or loose wire connector to the fan motor.
IDLE CONDITION
--
Check wiring.
With the timer set and door closed,
oven light does not light.
Defective timer contacts.
Open or loose wire connection.
Procedure H on GENERAL.
Check wiring.
11
Page 14
PROBLEM
POSSIBLE CAUSE
TEST PROCEDURE OR
CORRECTION
I
COOKING CONDITION
Turntable motor does not operate Defective turntable motor.
Replace.
with cook switch depressed.
Defective oven therm0 cut-out.
Procedure 5.
I
Defective magnetron therm0 cut-out.
I
Procedure 5.
I
I
Defective cook switch.
I
Replace.
I
Open or loose wire connection to the above
components.
Check wiring.
Browner indicator light does not light
and no heating, but turntable motor
operates.
,(Microwave timer is at “0” position)
Defective primary interlock switch.
Defective microwave timer switch contacts.
Defective browner timer switch contacts.
Procedure 3.
Procedure H on GENERAL.
Procedure H on GENERAL.
Open or loose wire connections to the above
components.
Check wiring.
Browning element does not operate,
but the browner indicator light
operates.
Browning cycle operates normally, but
microwave cooking cycle does not
operate properly.
(Variable cooking mode selector is at
“FULL POWER” position.)
Defective browning element.
Open or loose wire connection.
Defective microwave timer switch contacts.
Defective vari-switch.
Defective power transformer.
Defective magnetron assembly.
Defective surge limiting relay.
Open or loose wire connection to the above
components.
Procedure 8.
Check wiring.
Procedure H on GENERAL.
Procedure 6.
Procedure 2.
Procedure 1.
Procedure 9.
Check wiring.
Microwave cooking cycle operates
normally when the mode selector is
set at “FULL POWER” position, but
not in any other mode.
Oven goes into microwave (browning)
cooking cycle, but microwave
(browner) timer does not time out.
Defective vari-motor.
Open or loose wire connection.
Defective variable cooking mechanism.
Defective microwave (browning) timer.
Open or loose wire connection.
Procedure 7.
Check wiring.
Check.
Procedure H on GENERAL.
Check wiring.
-
Oven goes into cook cycle, but extreme-
Turntable motor does not operate.
Replace the motor or check wiring.
1~ uneven heating is produced in oven load.
---. -.-
Oven goes into cook cycle, but the
Defective light.
Replace.
microwave or browner indicator light ---_-__ does not light.
Open or loose wire connection.
Check wiring.
Oven goes into cook cycle, but shuts
Defective magnetron (oven) therm0 cut-out.
Procedure 5.
down before end of the cycle.
Open or loose wire connection.
Check wiring.
6
12
Page 15
TEST PROCEDURES
PROCEDURE
NUMBER
COMPONENT TEST
1
MAGNETRON ASSEMBLY
HIGH VOLTAGES ARE PRESENT DURING THE COOK CYCLE, SO EXTREME CAUTION SHOULD BE
OBSERVED.
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 means of a water temperature rise test. This test should only be
used if the preceding test does not indicate a faulty magnetron and there is no defect on the following components
or wiring: silicon rectifier, high voltage capacitor and power transformer.
Refer to Microwave Output Power Measurement in GENERAL SERVICE MANUAL on pages 6 and 7.
2 POWER TRANSFORMER TEST
DISCHARGE THE HIGH VOLTAGE CAPACITOR BEFORE TOUCHING ANY OVEN COMPONENTS OR
WIRING
Disconnect the primary input terminals and measure the resistance with an ohmmeter. Check for the continuity
of the coils with an ohmmeter. On the RX1 scale, the resistance of the primary coil should be approximately 1 ohm
and the resistance of high voltage coil should be approximately 77 ohms, and the resistance of filament coil should
be approximately 1 ohm. With 220/240 volts A.C. applied to the primary winding, the voltage across the filament
winding should be approximately 3.2 volts A.C. (HIGH VOLTAGES ARE PRESENT TO HIGH VOLTAGE TERMINAL, SO EXTREME CAUTION SHOULD BE OBSERVED.)
13
Page 16
TEST PROCEDURES (CONT’D)
PROCEDURE
NUMBER
COMPONENTTEST
3
PRIMARYINTERLOCKSWTTCH(UPPERLATCHSWITCH)TEST
The primary interlock switch can be checked with an ohmmeter. Isolate the switch and then connect the meter
leads to the common (COM.) and normally open (N.O.) terminals of the switch. The meter should indicate an
open circuit with the door opened and the closed circuit with the door closed.
In case improper operation is indicated, make the necessary switch adjustment or replace the defective switch.
See adjustment procedure on page 22.
4
SECONDARYINTERLOCKSWITCH(LOWERLATCHSWJTCH)TEST
Isolate the switch and connect the ohmmeter leads to the common (COM.) and normally open (N.O.) terminals of
the switch. The meter should indicate an open circuit with the door opened and a closed circuit with the door
closed. When the meter leads are connected to the common (COM.) and normally closed (N.C.) terminals of the
switch, it should indicate a closed circuit with the door opened and an open circuit with the door closed.
In case improper operation is indicated, make the necessary switch adjustment or replace the defective switch.
See adjustment procedure on page 22.
5
THERMOCUT-OUTTEST
A continuity check across the therm0 cut-out should indicate a closed circuit unless the temperature of the
therm0 cut-out reaches approximately 104°C. The therm0 cut-out resets automatically at approximately
79°C. An open therm0 cut-out indicates over heating of the magnetron assembly (or oven cavity). Check for
restricted air flow to the magnetron (or oven cavity) through the opening in the chassis, especially the cooling
duct and air intake.
6
7
VARI-SWITCHTEST
The vari-switch is activated by the cam lever and cam. When the variable cooking mode selector is set at “FULL
POWER” position, the cam is placed far away from the cam lever. In this condition, the vari-switch is turned ON
by a spring action of the cam lever.
The vari-switch can be checked with an ohmmeter.
When the meter leads are connected to the common (COM.) and normally open (N.O.) terminals of the switch, it
should indicated a closed circuit with the cam lever released and an open circuit with the cam lever depressed.
If improper operation is indicated, make the necessary adjustment on the mode selector assembly or replace the
defective switch.
-<
VARI-MOTORTEST
The vari-motor rotates at two (2) r.p.m.
Check if 220/240 volts is present between the motor terminals. If voltage is present. but the motor does not turn,
replace the motor. If no voltage is present, check for loose or broken wire connections.
8
BROWNINGELEMENTTEST
--
-__-_
a. Disconnect heater leads and measure the resistance with an ohmmeter. On the RX1 scale, the resistance
between the heater leads should be approximately 37 ohms at Continental Europe and South African Models, and
approximately 44 ohms at Australian and U.K. Models.
b. Disconnect heater leads and measure the insulation resistance with 5OOV-1 OOMR insulation resistance meter.
The insulation resistance between heater lead and cavity should be more than 0.4MJ2.
--
14
Page 17
TEST PROCEDURES (CONT’D!
PROCEDURE
NUMBER
9
COMPONENT TEST
SURGE LIMITING RELAY TEST
Disconnect the wire leads from relay coil terminals (A) and (B). A continuity check of the surge limiting relay coil
should indicate approximately 3000 ohms.
Check if there is a continuity between the contacts (15) and (16) of relay with the relay plunger depressed.
If the relay is defective, check the surge limiting resistor at the same time.
.
15
Page 18
CHAPTER IV
COMPONENT REPLACEMENT AND ADJUSTMENT PROCEDURES
WARNING: to avoid possible exposure to microwave
energy ;
A. Before operating the oven;
1. Make sure that unlatching and opening the door
slowly is accompanied by a click indicating
actuation of the interlock switches.
2. Check visually the door seal for arcing and
damage.
B. Do not operate the oven until after repair if any of
the following conditions exist;
1. Door does not close firmly against the front of
appliance.
OUTER CASE
To remove the outer case, refer to Figure 5 and proceed as
follows:
1. Disconnect the oven from the power supply.
2. Remove the screws from the rear and along the side
edges of the case.
3. Slides the entire case back about 3cm to free it from
the retaining clips on cavity face plate.
2.
There is a broken door hinge or support.
3.
The door gasket or seal is damaged.
4.
The door is bent or warped.
5.
There is any defective parts in the interlock, oven
door or microwave generating and transmission
assembly.
6.
There is any other visible damage to the oven.
C. Do not operate the oven;
1. Without the RF gasket.
2.
If the waveguide and oven cavity are not intact.
3. If the door is not closed.
REMOVAL
4.
Lift the entire case from the unit.
CAUTION: DISCHARGE THE HIGH VOLTAGE CAPA-
CITOR BEFORE TOUCHING ANY OVEN
COMPONENTS OR WIRING.
P
62
PLUG
PROTECTION
CASE
CABINET BASE ASSEMBLY
ER CASE CABINET
VOLTAGE CAPACITOR
SILICON RECTIFIER
POWER SUPPLY
CORD MOUNTING BRACKET
SASH SPACER
CORD BUSHING
~?-CbRO STOPPER
GOi
POWER TRANSFORMER
TURNTABLE MOTOR COVER
SURGE LIMITING RELAY
RELAY BOAR
L,-I-- -*. ---
Figure 5. Outer Case and Chassis Components
16 -
Page 19
1.
2.
3.
1.
2.
3.
4.
1.
2.
3.
1.
2.
3.
4.
1.
2.
3.
4.
1.
2.
TURNTABLE MOTOR REMOVAL
Disconnect the oven from the power supply. 4. Disconnect the wire leads from the turntable motor,
Remove the two (2) screws holding the turntable 5. Remove the four (4) screws and nuts holding the
motor cover to the bottom side of the chassis base. turntable motor to the oven cavity bottom.
Remove the turntable motor cover.
6. Remove the turntable motor.
FAN MOTOR REMOVAL
Disconnect the oven from the power supply and 5. Remove the fan motor assembly.
remove the outer case.
6. Remove the fan blade with the fan retainer clip .
Discharge the high voltage capacitor.
-
attached.
Disconnect the wire leads from the fan motor.
‘7. Remove the two (2) screws and nuts holding the fan
Remove the three (3) screws holding the fan motor
motor to the bracket.
mounting bracket to the cooling duct “A”.
The fan motor is now free.
HIGH VOLTAGE CAPACITOR REMOVAL
Disconnect the oven from the power supply and
remove the outer case.
Discharge the high voltage capacitor.
Disconnect the wire leads from the capacitor.
4. Remove the single (1) screw holding the capacitor and
the rectifier to the back cabinet. .
5. Remove the capacitor.
SILICON RECTIFIER REMOVAL
Disconnect the oven from the power supply and
5. Remove the rectifier from the back cabinet.
remove the outer case.
6. Remove the single (1) screw holding the grounding
Discharge the high voltage capacitor.
wire lead to the rectifier. The rectifier is now free
Disconnect the wiri leads from the rectifier.
from the unit.
Remove the single (1) screw holding the rectifier to
Note: The earthing wire lead must be secured firmly with
the back cabinet. a screw to the new rectifier.
POWER TRANSFORMER REMOVAL
Disconnect the oven from the power supply and
remove the outer case.
Discharge the high voltage capacitor.
Disconnect the wire leads from the power transformer.
Disconnect the secondary wire leads of power transformer from the magnetron and silicon rectifier.
5. Remove the two (2) screws holding the power transformer to the chassis base.
6. Take out the power transformer.
OVEN THERM0 CUT-OUT REMOVAL
Disconnect the oven from the power supply and
4. Remove the two (2) screws and two (2) nuts holding
remove the outer case.
the therm0 cut-out to the oven cavity.
Discharge the high voltage capacitor.
5. Remove the therm0 cut-out from the unit.
3. Disconnect the wire leads from the therm0 cut-out.
17
Page 20
MAGNETRON ASSEMBLY REMOVAL
1. Disconnect the oven from the power supply and
remove the outer case.
2. Discharge the high voltage capacitor.
3. Remove the two (2) screws holding the cooling duct
“C” to the magnetron assembly.
4. Remove the two (2) screws holding the cooling duct
“B” to the magnetron assembly and cooling duct “A”.
5. Disconnect the wire leads from the primary terminal
of the power transformer.
6. Remove the cooling duct “B” from the unit.
7. Carefully loosen the four (4) mounting nuts holding
the magnetron
assembly to the waveguide while
supporting the magnetron assembly from below.
8. Lower the magnetron assembly until the tube is clear
of the waveguide.
9. Remove the magnetron assembly from the unit.
10. Disconnect the filament wire leads from the magnetron.
11. Remove the magnetron therm0 cut-out by loosening
the two (2) mounting screws.
The magnetron is now free.
CAUTION: WHEN REPLACING THE MAGNETRON,
BE SURE THE R.F. GASKET IS IN
PLACE AND MOUNTING NUTS ARE
TIGHTENED SECURELY.
HEATER CONTROL LEVER (B)
HEATER CONTROL CABLE (
OVEN DUCT
-CABLE HOLDER
CABLE SUPPORTING BRACKET (B)
S SUPPORT
FLANGE
TURNTABLE MOTOR
MOUNTING BLACKET
BLE MOTOR
SECONDARY
INTERLOCK SWITCH
PRlilARY INTERLOCK SWITCH
Figure 6. Oven Cavity Components
18
Page 21
MODE SELECT LEVER
A
ASSEMBLY, COMPLETE
I
TIM
r
--.--.-I-/-~~,
-
P
I
INDICATOR LIGHT INSULA-
TIMER,
INDICATOR LIGHT, MICROWAVE
MICROWAVE
f
VARI-MOTOR
INDICATOR LIGHT H
I
COOK
I rn
ELECT GEAR
Ii~kkTOR
44ICROWAVi
\
MODE
BACK PLATE
TIMFR
ARI-SWITCH
UrtN L.tvtn -
A’
HCB3CIVID L I
FLJ
C\ONTROL
INDICA?bR
LOLK
PANEL
LIGHT,
BROWNING
DEVICE
BRACKET
\
OPEN LEVER
ECORATION PANEL
OPEN LEVER SPRING&jj
COOK
- SWITCH
SELECT KNOB
Page 22
1.
2.
3.
1.
2.
3.
The complete control panel should be removed for replacement of the components. To remove the control panel,
refer to Figure 7 and proceed as follows:
1.
2.
3.
4.
5.
6.
7.
8.
9.
Disconnect the oven from the power supply and
remove the outer case.
Discharge the high voltage capacitor.
Disconnect the 6-pin connector and following five (5)
wire leads;
(1) Brown wire lead on the vari-switch.
(2) White wire lead on the cook switch.
(3) Red wire lead on the cook switch.
(4) Red and orange wire leads on the cook switch.
Remove the latch lever from the lock device. To
remove it, first release the lower portion of the latch
lever, refer to Figure 8, and then remove the latch lever
from the lock device.
Remove the five (5) screws holding the control panel
to the oven cavity face plate.
Pull the control panel assembly forward, and place it
on a smooth surface.
Remove the knobs from timers and mode selector.
Remove the six (6) screws holding the control panel to
the back plate.
Separate the back plate assembly from the panel.
VARI-MOTOR REMOVAL
Disconnect the oven from the power supply and
remove the outer case.
Discharge the high voltage capacitor.
Disconnect the vari-motor wire leads from the micro-
wave timer, and release the wire leads from the wire
holder.
4. Remove the fan motor. (Refer to Fan Motor Removal)
5. Remove the two (2) screws holding the motor to the
select lever bracket.
6. Slide the motor backward and remove it from the
bracket.
VARI-SWITCH REMOVAL
Disconnect the oven from the power supply and
remove the outer case.
Discharge the high voltage capacitor.
Disconnect the wire leads from the vari-switch.
4. Remove the single (1) screw and two (2) nuts holding
the switch to the select lever bracket.
5. Remove the switch.
CONTROL PANEL AND COMPONENTS REMOVAL
COOK SWITCH
1. Disconnect the wire leads from the cook switch.
2. Remove the three (3) screws holding the cook switch
assembly to the back plate.
3. Remove ‘the cook switch assembly from the back
plate.
4. Remove the two (2) screws holding the cook switch
to the assembly.
5. Remove the cook switch.
MICROWAVE AND BROWNER TIMERS
1. Disconnect the wire leads from the timer.
2. Remove the timer gear stop ring and timer gear from
the timer shaft.
3. Remove the three (3) screws holding the timer to the
timer drum mounting bracket.
4. Remove the timer.
MICROWAVE AND BROWNER INDICATOR LIGHTS
1. Disconnect the light wire leads from the timer.
2, Remove the two (2) screws holding the light holder
to the back plate.
3. Remove the light.
Replacement of individual components is as follows:
20
Page 23
Part of
Lock Device
Latch Lever Removal
I
I
Part of Lock Device
Lower Portion of
Washer
(XWHSD40-08000)
32000)
Note: If the lower portion locking tab of the latch lever
is broken, connect the lock device and latch lever
using a washer and nut.
Figure 8.
LATCH ASSEMBLY AND COMPONENTS REMOVAL
The latch assembly consists of the primary interlock switch,
secondary interlock switch, latch hooks, levers, etc.
To remove the latch assembly refer to Figure 6 and proceed
as folIows;
1. Disconnect the oven from the power supply and
remove the outer case.
2. Discharge the high voltage capacitor.
3. Disconnect the wire leads from the latch switch
assembly.
4. Remove the two (2) screws holding the latch assembly
to the mounting bracket.
5. Remove the latch lever from the lock device. (Refer to
Figure 8.)
6. Release the two (2) wire holders from the wire harness.
7. Remove the latch assembly from the unit by moving
it upward.
Replacement of individual component is as follows;
PRIMARY INTERLOCK SWITCH (UPPER LATCH SWITCH)
1. Remove the primary interlock switch from the upper latch hook by pushing the retaining tabs outward.
SECONDARY INTERLOCK SWITCH (LOWER LATCH SWITCH)
1. Remove the secondary interlock switch from the lower latch hook by pushing the retaining tabs outward.
Note: After any service to the latch assembly, make
sure that the above switches are operating nroperly
with reference to the Latch Assembly Adjustment
and Microwave Measurement Procedure.
21
Page 24
LATCH ASSEMBLY ADJUSTMENT
(PRIMARY AND SECONDARY INTERLOCK SWITCHES ADJUSTMENT)
The primary interlock switch and secondary interlock
switch are fixed in position, therefore individual switch
adjustment is not needed.
In case the switches do not operate properly due to a
misadjustment, the entire latch assembly should be readjusted with the following manner.
1. Loosen the two (2) screws holding the latch assembly
to the mounting bracket.
2. With the door closed, adjust the position of the latch
assembly by moving it back and forward, or up and
down. The 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 latch assembly should be
14 mm distance between the upper portion of the
lower latch hook arm slot and the center of hook lever
pin with the door closed, Figure 9.
3. Secure the screws firmly.
After the adjustment, make sure of the following points:
1. The in and out play of the door remains less than
0.5 mm at latched position. First check the upper
latch hook position, pushing and pulling the upper
portion of the door toward the oven face. Then check
the lower latch hook, pushing and pulling the lower
portion of the door toward the oven face. Both
results (play of the door) should be less than 0.5 mm.
2. The distance between the upper portion of the lower
latch hook arm slot and the center of the hook lever
pin should be 14 mm at latched position.
3. The primary and secondary interlock switches interrupt
the circuit before the door can be opened.
4. Reinstall the outer case and check the microwave
leakage around the door with an approved microwave
survey meter.
(Refer to Microwave Measurement.)
.
i!Et%
Hook
Lever
Assem
Latch Lever
\
Secondary
Interlock
Switch
I
\
upper
Ii%:
Wire
Holder
Figure 9. Latch Adjustment
22
Page 25
DOOR REPLACEMENT AND ADJUSTMENT
DOOR REPLACEMENT
1. Disconnect the oven
from the power supply and
remove the outer case.
2. Remove the four (4) screws holding the door hinge to
the oven face plate. The door assembly is now free,
from the unit.
3. On reinstalling new door assembly, secure the door
assembly with the four (4) mounting screws to the
oven face plate.
Making sure the door is parallel with the upper sash
line, and the latch heads pass through the latch holes
correctly.
Note:
After any service to the door;
(A) Make sure that the safety interlock switches
(primary and secondary) are operating
properly.
(W An
approved
microwave survey meter
should be used to assure compliance with
proper microwave radiation standards.
DOOR ADJUSTMENT
When moving and/or loosening the door assembly in such
a case as door replacement, the following adjustment
criteria’ should be taken.
The door should be adjusted to meet the following four
conditions by keeping the hinge screws loose.
1. The door latch heads smoothly catch the latch hooks
through the latch holes.
2. Deviation of the door alignment from the horizontal
line of the upper sash is to be less than 1 .O mm.
3. The door is positioned with its face depressed toward
the cavity face plate.
4. Reinstall the outer case, and check the microwave
leakage around the door with an approved microwave
survey meter.
(Refer to Microwave Measurement Procedure.)
/UPPER
SASH ASSEMBLY
Figure 10. Door Replacement and Adjustment Procedure
23
Page 26
SHEATH HEATER REPLACEMENT
SHEATH HEATER REMOVAL
To remove the heater element, refer to Figure 6 and
proceed as follows:
1. Disconnect the oven from the power supply and
remove the outer case.
2. Discharge the high voltage capacitor.
3. Remove the four (4) screws (and nuts) holding the
heater spacer to the heater element.
4. Remove the related parts to the heater element in
following manner. The following procedure describes
one side only, and will have to be applied to both left
and right sides for the removal of the heater.
(1) Remove the heater wire lead from the heater
element by loosening the mounting screw and nut.
(2) Loosen the screw and nut holding the heater wire
holder to the heater element.
(3) Remove the two (2) screws holding the cable
holder to the heater choke assembly.
(4) Remove the six (6)screws holding the heater choke
assembly to the oven cavity.
(5) Remove the heater wire holder and heater choke
assembly from the heater element.
(6) The heater element is now removable.
5. Remove the heater element from the oven cavity. To
remove it proceed as follows.
Heater WireHol
(1) Keep the heater eleient at the lowest position.
(2) Pick up the right &de of the element toward upper
right hand side corner of the cavity back wall, and
remove the right side of the element from the
cavity bracket.
(3) Pull the right side of the element forward without
making scratches on the cavity wall. Take it out
of the oven cavity.
(4) Remove the left side’ of element from the cavity.
Now the heater element is free from the unit.
SHEATH HEATER REINSTALLATION
On reinstalling the heater element, follow the above
procedures in reverse order.
Note, for smooth UP-DOWN operation:
(1) Make sure that the heater element is shaped well
before the installation. (Figure 12.)
(2) Install the element carefully into the oven cavity
without changing its shape.
(3) Put the heater choke assembly in place and secure it
to the cavity wall with the two (2) mounting screws.
Then secure it to the cavity bracket with the four (4)
mounting screws.
(4) Secure the heater wire holder to the heater element
where the holder is parallel to the cavity wall.
(Figure 11.)
420mm
Figure 11. Sheath Heater Replacement Figure 12. Heater Element
24
Page 27
HEATER CABLE ADJUSTMENT
When the heater element is replaced or the heater control
cables are adjusted, make sure of the following points for
operating the heater position control smoothly.
3.
4.
1.
2.
With the heater control knob set at “I” position, the
distance between the heater latch shaft and the open
lever bracket should be 2.0 mm (Figure 13.)
With the knob set at “1” position, the distance between
the heater choke assembly and the heater wire holder
should be 4 - 5mm. (Figure 13- 1.)
5.
6.
See Fig.
With the knob set at “V” position, the distancebetween
the heater control cable (C) and the heater wire holder
should be more than 1 mm. (Figure 13-2.)
The heater control cable (A) should be secured at the
position where the .‘distance between the cable holder
and cable guide is 0
N 1 mm, (Figure 13-1.)
The heater control cable (C) should be stretched
loosely. (Figure 13-3)
The heater control cables (C) should be placed as
shown in Figure 13-3.
InnerCable
Heater I ControlCable (A)
/ I
16-1 and 16z~~‘--//
~,~l~~m’and lG2
I
J’
Heater Control Knob
Figure 13. Heater Cable Adjustment
Figure 13-1 Heater Position “I”
Figure 13-2 Heater Position 7”
25
Bracket
Inner Cable
Front
Figure 13-3
Page 28
MICROWAVE MEASUREMENT
After the adjustment of the door interlock switches and
door is completed individually or collectively, the follow-
ing 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 micro
wave oven.
2.
3.
REQUIREMENT
The safety switch must prevent microwave radiation
emission in excess of 5mW/cm2 at any point Scm or more
from external surface of the oven.
PREPARATION FOR THE 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 instrumentation as prescribed by the performance
standard for microwave ovens must be used for
testing.
4.
5.
6.
Recommended instruments are:
NARDA 8 100
NARDA 8200
HOLADAY HI 1500
SIMPSON 380M
Place the turntable tray into the oven cavity.
Place the load of 275 +15ml of water with the
addition of one (1) percent by weight of sodium
chloride in solution initialy at 20 +5”C in the centre
of the oven tray. The water container should be a low
form of 600ml beaker with inside diameter of
approx. 8.5cm and made of an electrically nonconductive material such as glass or plastic.
The placing of this standard load in the oven is
important not only to protect the oven, but also to
insure that any leakage is measured accurately.
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 salt water.
Move the probe slowly (not faster than 2.5cm/sec.)
along the gap.
‘The microwave radiation emission should be mea-
sured at any point of 5cm or more from the external
surface of the oven.
26
Page 29
220V -
50Hz
tti7
CORD
!-----i-t-t---! CONNECTOR
R/1 8
OVEN THERM0
. SWITCH
-/
- OVEN
MAGNETRON
THERM0 CUT-OUT
SWITCH
_ ---
TURNTABLE
i /
I
I
PRIMARY
INTFRI C)CK
6
P
I
W/18
i--?-R LIGHT
I
L-------T----
-------1
\
\
MICROWAVE ’
TIMER
MICROWAVE NO \
*‘-
. -. .-- -.-
a lNDlcAToR
&R/18 SW’TCH
B/18
W
W/l 8
* B,18L-
3
,
.s
2
TIMER MOTOR
I------
BR/18
WIRE COLOUR CODE SYMBOL 1
R: RED
B:
BLACK
w:
WHITE
OR: ORANGE
BL: BLUE
GR: GRAY
BR: BROWN G:
GREEN
G-Y: GREEN AND YELLOW STRIPE
I18
SECTIONAL AREA 0.8mmz
: NO INDICATION SHOWS 0.3mm2
0:
SOLDERLESS JOINT
0: SOLDER JOINT
m: 2-P CONNECTOR
m: 6-P CONNECTOR
HV:
HIGH VOLTAGE WIRE
SG: SILICON RUBBER INSULATION
GLASS BRAIDED WIRE
rr (mm-)
POWER TRANSFORMER
r
I
-7
I
”
L---- ---------J
t
MAGNETRON
Figure 14. Schematic Diagram (Continental Europe Model)
27
Page 30
CORD
-
WI18
1 CONNECTOR R/l8
G-Y
MAIN
4
F
-------- ---- --------_____
SWITCH 5
-. I_^
FUSE
SEC
IN1
SW’
r
:ONDARY
‘ER LOCK
TCH
NO
W/18
COOK *
--
SWITCH ,e,
WI18
W/lZ
_----m---v-
--_-__-
TURNTABLE
w
OR
SG.W/18
1
z-
FAN
---_-_
9 OVEN THERM0
CUT-OUT
MAGNETRON
THERM0 CUT-OUT
GR/
GR/18
COM
a
PRIMARY
- -ICROWAVE
INTERLOCK
JDICATOR
NO1 0~118 SWITCH
TIMER MOTOR
SHEATH
l-----L------
BR/18
-“@$ir VARI-SWITCH
VARI-MOTOR \-
3
I I
R/
I
I VW-
--=1 1 LIGHT
18
1)
i
BR/18
\
Q
WIRE COLOUR CODE SYMBOL
R:
RED
B:
BLACK
W: WHliE
OR: ORANGE
BL: BLUE GR: GRAY
BR: BROWN
G:
GREEN
G-Y: GREEN AND YELLOW STRIPE
/18: SECTIONAL AREA 0.8mm2
: - NO INDICATION SHOWS 0.3mm2
0:
SOLDERLESS JOINT
SOLDER JOINT
&: 2-P CONNECTOR
m: 6-P CONNECTOR
HV:
HIGH VOLTAGE WIRE
SG: SILICON RUBBER INSULATION
GLASS BRAIDED WIRE
POWER TRANSFORMER
OVER CURRENT
PROTECTOR
r--
___-------
7 I I
HV HV
L--- ----------I
t
MAGNETRON
Figure 15. Schematic Diagram (South African Model)
28
Page 31
240V 50Hz
t!J CORD
\AlllQ TA-IT-1 ZNNECT~R
R/l8
SWITCH
[
WI18
W
OR
SG. W/l8
BL
OVEN THERM0
CUT-OUT
MAGNETRON
THERM0 CUT-OUT
-T----I I
TURNTABLE
GR’l
GR’18 PR ‘MARY
I
w
INTERLOCK
I
I--- -- --I - r
----h~Ji& INDICATOR .--AOR/lB
I
I
‘~---c-k LIGHT
LL!! ____ 7------------,
\
\
I 1
I
r--xl BROWNER 1
I - I__
SHEATH
l-------
l
7 HEATER
\I
I
w;
BR/l8
I--------.
SG. W/l8
GR/18
OR
____________
VAR I-SW ITCH
I
BR/18
WIRE COLOUR CODE SYMBOL
R:
RED
B:
BLACK
w:
WHITE
OR: ORANGE
BL: BLUE
GR: GRAY
BR: BROWN
G: GREEN
G-Y: GREEN AND YELLOW STRIPE
118:
SECTIONAL AREA 0.8mm2
: NO INDICATION SHOWS 0.3mm2
0:
SOLDERLESS JOINT
.: SOLDER JOINT
12p]: 2-P CONNECTOR
m: 6-P CONNECTOR
HV: HIGH VOLTAGE WIRE
SG:
SILICON RUBBER INSULATION
GLASS BRAIDED WIRE
g POWER TRANSFORMER
OVER CURRENT
PROTECTOR
Figure 16. Schematic Diagram (Australian and U.K. Models)
29
Page 32
TO SURGE LIMITING RESISTOR (BROWN/0.8mm2)
TO SURGE LIMITING RELAY, TERMINAL NO. A (BROWN/0.8mm2)
TO SURGE LIMTING RELAY, TERMINAL No. 15 (BROWN/0.8mm2)
TO VARI-SWITCH, NORMALLY OPEN TERMINAL (BROWN/0.8mm2)
SURGE
LIMITING
RELAY
TO POWER TRANSFORMER, PRIMARY WINDING (WHITE/0.3mm2)
TO POWER TRANSFORMER, PRIMARY WINDING (GRAY/0.8mm2)
TO SURGE LIMITING RESISTOR (GRAY/0.8mm2)
Figure 17. Relay Connections (Continental Europe Model)
30
Page 33
PARTS LIST
REF. NO.
PART NO.
DESCRIPTION
Q’TY CODE
4
CONTROL PANEL PARTS
1
l--l
1--lA
1--lB
1--1c
1--lD
1--lE
1--lF
1--lG
l--2
l--3
l--4
l--5
1--5A
l--5B
l--6
l--7
l--8
l--9
l-10
l-11
l-12
l-13
l-14
l-15
l-16
l-17
1-18
l-19
l-20
1-21
1-22
1-23
1-24
1-25
1-26
1-26~
L-26B
L-26C
L-26D
I-26E
L-26F
L-26G
DPNLC0141WRKO
DPNLC0142WRKO
DPNLC0143WRKO
FPNLCO125WRKO
HDECA0186YBEA
HPNLC0062YBVA
HDECQ0031YBFA HINDP002lYBFA
HINDP0021YBFC
GCOVA002OYBPO
PCUSU0174YBPO
LCHSM0026YBWO
PCuSU0187YBPO
FKNBK0019YBKO
FSW-P0032WRKO
QSW-P0003YBEO
MLEVF0054YBEO
QSWTE0077WREO
QSWTE0078WREO
QSWTE0079WREO
QSWTE0080WREO
RLMPEOO62WREO
RLMPEOO63WREO
JKNBK0062WRFA
JBTN-0064WRFA
LANGH0054YBWO
MLEVP0017WRFA
MLEVF0036YBWO
MSPRDOOlOYBEO
MROD-0009YBMO
LHLDP0006YBFO
PZETB0012YBPO
FANGT0041YBMO
PCOVP0071YBWO
NGERK0002YBFO
HDALP0017WRRA
HDALP0004YBRA
NGERKOOOlYBFO
MSPRP0044YBEO
CLEVF0032WRKO
DLEVF0006YBYO
MSPRP0042YBEO
NBALSOOOlYBMO
NGERH0021YBFO
MLEVF0048YBWO
MSPRD0014YBEO
NROLM0004YBWO
Control panel assembly, complete
(Continental EuropeandSouth Africa
(United Kingdom)
(Australia)
Front panel assembly
Decoration panel
Control panel
Timer plate
Cook indicator, browner
Cook indicator, microwave
Mode select cover
Control panel cushion
Control back plate
Shielding cushion
Timer knob assembly
Cook switch assembly
Cook switch
Lock device
Timer, microwave (22OV)
Timer, microwave (24OV)
Timer, browner (22OV)
Timer, browner (240V)
Indicator light, microwave
Indicator light, browner
Mode select knob
Cook button
Cook button supporting plate
Open lever
Open lever bracket
Open lever spring
Open lever shaft
Indicator light holder
Indicator light insulator
Timer drum mounting bracket
Timer drum cover
Drum gear
Timer scale, microwave
Timer scale, browner
Timer gear
Timer gear stop ring
Mode select lever assembly,
complete
Select lever bracket
Knotch spring
Knotch ball
Select gear
Cam lever
Cam lever spring
Knotch roller
1 BY
1
1
1
1
1
2
1
1
1
4
1
1
2
1
1
1
1
1
1
1
1
I1
-1
1
1
1
1
1
1
2
2
2
2
2
1
1
2
2
1
BY
BY
AX
AR
AP
AE
AA
AA
AA
AA
AL
AA
AF
AY
AX
AM
BD
BE
BC
BC
AL
AK
AB
AC
AB
AD
AE
AD
AC
AD
AB
AG
AC
AD
AK
AH
AC
AB
BB
AK
AB
AB
AD
AC
AB
AB
31
Page 34
REF. NO.
PART NO.
DESCRIPTION
Q’TY CODE
CONTROL PANEL PARTS (CONT’D)
l-26H QSW-M0071YBEO
Vari-switch
1
AK
l-261 RMOTDOO47WREO
Vari-motor
1
AY
DOOR PARTS
2
FDORFOO93WRKO
Door assembly, complete
1 BW
2--l
GDORF0045YBMO Door base
1
AT
2--2
PSLDM0129YBTA
Seal plate
1 AS
2--3
PSLDM0130YBAA
Screen mesh
1 AS
2--4
PGLSP0013YBEO
Inside glass window
1 AS
2--5
PPACG0057YBFA
Inside window gasket
1 AP
2--6
PCUSU0159YBPO
Outer window cushion (long)
2 AA
2--7
PCUSUO16OYBPO
Cuter window cushion (short)
2 AA
2--8 LFIX-0048YBW0 Window holder
1 AE
2--9
LCHK-0021YBFO
Choke cover (short)
2 AH
2-10 LCHK-0022YBFO
Choke cover (long)
2
AK
2-11 PSLDM0131YBEO Door ferrite sealer
1 AH
2-12
GCOVH0042YBFA
Door ferrite cover
1
AG
2-13
HDECC0060YBTA
Door sash, upper
1 AW
2-14 HDECC0061YBTA
Door sash, lower
1 AV
2-15
HDECC0059YBTA
Door sash, right
1 AW
2-16
HDECQOO47YBFA Handle cover
1
AH
2-17
FDECC0028YBKO
Door sash left assembly
1
AY
2-18 PGLSP0014YBEO
Outer window
1
AX
2-19
PCOVP0082YBFO
Outer window cover (long> 2
AD
2-20
PCOVP0083YBFO
Outer window cover (short) 2
AD
2-21
HDECA0185YBTA
Door decoration panel
1 AS
2-22 FSTPC0002YBMO
Door latch plate
1
AL
2-23
LX-BZ0086YBEO
Screw (Door ferrite cover fitting) 3 AA
2-24
PCUSG0134WRPO
Door base cushion
2
AB
OVEN PARTS
3--l
DOVN-0060YBKO
Oven cavity assembly
1
BT
3--lA
FROLMOOOlYBYO
Turntable roller assembly
3
AG
3--lB
LSUB-0053YBWO Cavity supporting plate, bottom
1
AE
3--1c
LX7BZ0061YBEO
Screw (Turntable roller mounting)
6 AA
3--2 NTNT-0013YBBA Turntable tray
,l
BE
3--3
FREFH0017WRKO
Heater reflecting plate assembly
1
AR
3--3A
PCUSG0056YBFA
Heatproof cushion
4
AB
3
--3B
PREFH0017WRHA
Heater reflecting plate
1
AQ
3--4 PGISH0006YBBO
Heater spacer
2
AK
3--5
FCPL-OOOlYBKO
Turntable coupling assembly
1 AV
3--6 PSPAG0004YBFO Turntable motor spacer
1
AA
3--7
LANGQ0123YBWO
Turntable motor mounting bracket
1
AC
3--8
PCUSG0005YBPO
Turntable motor cushion
1 AB
3--9 PCUSG0020YBFO Rubber bushing
4
AA
3-10
LANGT0107YBWO
Hinge mounting plate
1
AC
32
Page 35
REF. NO.
PART NO.
DESCRIPTION
Q’TY CODE
OVEN PARTS (CONT’D)
3-11
FFLG-0016YBY0
3-12
PCovP0084YBPO
3-13
FANGQ0069WRYO
3-14
LX-NZ0050WRE0
3-15
3-16
3-16A
3-16B
3-16C
3-16D
3-16E
3-16F
3~16G
3-16H
3-161
3-16J
3-16K
3-16L
3-16M
PGLSP0015YBEO
FSW-M0062WRKO _
FANGT0042YBYO
FLEVF0017YBYO
FLEVF0020YBYO
LANGK0069YBFO
LANGK0070YBFO
LANGT0121YBWO
MBARM0002YBWO
MLEVP0008YBFO
MROD-0024YBEO
MSPRP0046YBEO
XRESD30-06000
XRESD40-06000
QSW-M0072YBEO
3-16N
QSW-M0073YBEO
3-17
FWAG-0001YBAO
3-18
LANGT0114YBWO
3-19
NFANJOOOlYBFO
3-20
MSPRP0038YBEO
3-21
RMOTE0092WREO
3-22
PDUC-0112YBW0
3-23
FDUC-0057YBKO
3-23A
PCUSU0186YBPO
3-23B
~cusu0185YBPO
3-24
PSKR-0003YBW0
3-25
PSKR-OOOlYBWO
3-26
PSKR-0017WRWO
3-27
FANGF0034YBYO
3-28
LANGF0128YBWO
3-29
PCUSU0132YBPO
3-30
PCUSU0133YBPO
3-31
PCUSU0134YBPO
3-32
PCUSU0036YBPO
3-33
CDUC-0003YBKO
3-33A
PCUSG0049YBPO
3-33B
PCUSG0050YBPO
3-33c
PCUSG0051YBPO
3-3313
PCUSG0062YBPO
3-34
FDUC-0059YBMO
3-35
PCUSUO161YBPO
3-36
PCUSG0066YRPO
Waveguide flange
Waveguide cover
Oven light mounting bracket
Sack nutl(heater spacer mounting,
right side only)
Oven light screen glass *
Latch assembly, complete
Latch assembly mounting plate
Upper latch hook lever assembly
Lower latch hook lever assembly
Upper latch hook
Lower latch hook
Hook spring mounting plate
Latch lever
Hook lever
Hook lever shaft
Hook spring
E-ring (3 mm)
E-ring (4 mm)
Primary interlock switch
(upper latch switch)
Secondary interlock switch
(lower latch switch)
Waveguide
Fan motor mounting bracket
Fan blade
Fan retainer clip
Fan motor
Magnetron cooling duct (A)
Magnetron cooling duct (B)
Cooling duct cushion (B-l)
Cooling duct cushion (B-2)
Magnetron cooling duct (C)
Magnetron cooling duct (D)
Magnetron cooling duct (E)
Chassis support (left)
Chassis support (right)
Cooling duct cushion (A-l)
Cooling duct cushion (A-2)
Cooling duct cushion (B)
Chassis support cushion
Steam duct assembly
Steam duct cushion (A)
Steam duct cushion (B)
Steam duct cushion (C)
Steam duct cushion (D)
Oven duct
Oven duct cushion
Waterproof cushion
33
1
1
1
2
1
1
1
1
1
1
1
2
1
1
1
2
4
3
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
2
1
2
1
AG
AG
AF
AA
AF
AX
AH
AC
AC
AE
AE
AA
AC
AC
AA
AC
AA
AA
AK
AK
AR
AK
AF
AB
AY
AF
AF
AA
AA
AB
AD
AC
AG
AF
AA
AA
AA
AA
AU
AA
AB
AC
AA
AH
AC
AB
Page 36
REF. NO.
PART NO.
DESCRIPTION
Q’TY CODE
4
OVEN PARTS (CONT’.D)
3-37 FLEVF0016YBYO
Heater control lever (B)
1
AG
3-38
FSPRP0003YBYO
Heater knotch spring
1
AH
3-39
MSPRDOOllYBEO
Heater control lever spring
1
AC
3-40
FCHK-0018WRKO
Heater choke assembly
2
AT
3-40A
LCHK-0019YBMO Heater choke
2
AN
3-40B
PFTA-0004YBWO
Heater choke cap (inside)
2
AB
3-4oc
PPIPP0018WRlO
Heater wire pipe
2
AL
3-41
FBNDKOOOlYBYO Heater wire holder
2
AC
3-42
FANGF0047WRKO Heater latch assembly (Continental 1
AS
Europe and South Africa)
FANGF0048WBKO
(United Kingdom and Australia)
1
AS
3-42A
LANGFOl97WRWO
Heater latch bracket (Continental
1
AG
Europe and South Africa)
LANGFOl52YBWO
(United Kingdom and Australia) 1
AF
3-42B
LHLD-0003YBWO
Cable holder (same as 3-49) 1
AB
3-42C
MSPRC0020YBEO
Heater latch pin spring
1
AA
3-42D
NSFTT0033YBMO Heater latch pin 1
AC
3-42E
PWIR-0004YBEO
Heater latch cable 1
AN
3-42F
XRESD50-06000
E-ring (5 mm)
1 AA
3-42G
XPNSD60---000
Snap pin
1 AA
3-43
MARMMOOO8YBMO
Joint lever
1
AB
3-44
PWIR-OOOlYBEO
Heater control cable (A)
1
AS
3-45
PWIR-0002YBEO
Heater control cable (B)
1
AU
3-46
PWIR-0003YBEO
Heater control cable (C)
2
AN
3-47
LANGK0077YBWO
Cable supporting bracket (B)
1
AC
3-48
LANGK0078YBWO
Cable supporting bracket (A)
2
AC
3-49
LHLD-0003YBWO
Cable holder (same as 3-42B) 5
AB
3-50
PCUSUO~~~YBPO
Magnetron cushion
1 AA*
3-51
FV-MZ0041YBKO
Magnetron
1
BV
3-51A
PGSK-0007YBEO
Magnetron gasket
1
AF
3-51B
PcoVWoo17wREo
Magnetron terminal cover
1
AB
3-52
RTHM-QOOlYBEO
Therm0 cut-out
2 AN
3-53
LX-NZOO24YBEO
Nut (oven therm0 cut-out mounting) 2
AA
3-54
DDEC-0002WRKO
Upper sash assembly, complete
1
BG
3-54A
HDECC0077m
Upper sash
1
AX
3-54B
GCOVA0055YBMA
Corner cap, upper (left)
1
.AE
3-54c
GCOVA0046YBM.A
Corner cap, upper (right)
1
AF
3-54D
HDECP0032WRRA
Sash plate
1
AT
3-54E
PFLT-OOOlYBPO
Sash plate cover
1
AB
3-54F
MSLIFOOOlYBWO
Heater control lever (A)
1
AF
3-54G
LBSH-OOOlYBFO
Lever receptacle
1
AB
3-54H
JBTN-0028YBVA
Heater control knob
1
AF
3-541
PSLDM0132YBEO
Sash ferrite (same as 4-21B)
1
AP
3-54J
GCOVH0043YBFA
Sash ferrite cover (same as 4-2lC)
1
AE
3-54K
PSPA-0026YBF0
Control lever guide
4
AC
3-541;
LSUB-0054YBWO
Control lever stopper (right)
1
AB
3-54M
LSUB-0057YBW0
Control lever stopper (left)
1
AB
3-54N
PCUSU0158YBPO
Control lever stopper cushion
2 AA
3-540
LX-NZOOl2YBEO
Speed nut (4 mm)
2
AA
34
Page 37
REF. NO.
PART NO.
DESCTIPTION
Q’TY CODE
OVEN PARTS (CONT’D)
3-54P
PCUSG0048YBPO
3-55
LX-BZ0052YBEO
3-56
LX-BZ0073YBEO
3-57
3-58
3-59
3-60
3-61
3-62
3-63
3-64
3-65
LX-BZ0076YBEO
LX-BZ0078YBEO L
LX-BZ0079YBEO
PSPA-0062WRPO
RHET-0017WRE0
RHET-0018WRE0
RLMPT0007YBEO
QSOCL0047WREO
RMOTE0081YBEO
HPNL-0002WRP0
3-66
HPNL-0003WRP0
4--l
4--2
4--3
FDAI-OllOWRTA
GLEGP0007YBEA
LANGQ0183WRWO
4--4
QACCV0018WREO
4--5
4--6
4--7
4--8
4--9
4-10
FACC-0017WRKO
FACCB0017WRKO
QACCA0018WREO
LBSHC0032WREO
QTANN0013YBEO
LSTPP0008YBFO
LSTPP0009YBFO
LHLDK0005YBFA
LANGF0153YBWO
4-11
FWAKM0014WRYO
4-12
LBNDK0013YBWO
4-13
RH-DZ0018YBEO
4-14
GCABU0048WRTA
4-15
FFTAS0004YBKO
4-15A
FFTAS0005YBKO
4-15B
LX-BZ0034YBMO
4-15c
PSPANQ002YBPO
4-15D
XRESD20-04000
-
L
FDAI-0109WRTA
Ferrite stopper cushion
(same as 4-21F)
Screw (turntable motor mounting)
Rectangular head screw
(upper sash mounting)
Screw (heater spacer mounting)
Screw (latch assembly mounting)
Screw (heater choke mounting)
Oven therm0 cut-out spacer
Sheath heater (220 V)
Sheath heater (240 V)
Oven light
Oven light socket
Turntable motor
Menu plate (German)
(Continental Europe only)
Menu plate (French)
(Continental Europe only)
CABINET PARTS
Cabinet base assembly
(Continental Europe andsouth Africa:
(United Kingdom and Australia)
Foot
Power supply cord mounting
bracket
Power supply cord (Continental
Europe)
Power supply cord (South Africa)
Power supply cord (United Kingdom)
Power supply cord (Australia)
Cord bushing
Cord connector
Cord stopper (upper)
Cord stopper (lower)
Cord holder
Cavity supporting plate
(upper left)
Turntable motor cover
Capacitor holder
Silicon rectifier
Outer case cabinet
Light access cover assembly
Light access cover
Coin screw
Coin screw spacer
E-ring (2 mm)
35
1
AA
4
3
AA
AA
4
AA
2 AA
8
AA
1
AC
1
BK
1
BK
1
AP
1
AK
1
BC
1
AG
1
AG
1
1
4
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
BF
BF
AB
AE
AU
AY
AW
AU
AD
AH
AC
AC
AB
AC
AP
AD
AU
BC
AM
AG
AB
AA
AA
Page 38
REF. NO.
PART NO.
DESCRIPTION
Q’TY CODE
CABINET PARTS (CONT’D)
4-15E
PCUSUQ035YBEO
Light access cover cushion
2 AA
(long)
4-16
PCUSUQOl9YBEO Light access cover cushion
1
AA
(short)
4-17
LX-NZ0005YBEO
Speed nut (3 mm)
1
AA
4-18
LX-NZ0013YBEO Stop ring
1
AA
4-19
NSFTT0026YBEO Cover hinge shaft
1
AB
4-20
PCUSG0065YBPO
Outer case cabinet cushion
1
AA
4-21
FDEC-0016YBK0 Lower sash assembly, complete
1
AY
4-21A
HDECC0062YBAA Lower sash
1
AU
4-21B
PSLDM0132YBEO
Sash ferrite (sama as 3-541)
1
AP
4-21c
GCOVH0043YBFA
Sash ferrite cover
1 AE
(same as 3-54J)
4-21D
GCOVA0047YBMA
Corner cap,
lower (left)
1
AE
4-21E
GCOVA0048YBMA
Corner cap,
lower (right)
1
AE
4-21F
PCUSG0048YBPO Ferrite cushion (same as 3-54~)
1
AA
4-21G LX-NZ0031YBEO
Speed nut (3 mm)
2 AA
4-22
PCUSG0123WRPO High voltage transformer cushion
1
AC
4-23 PCUSG0063YBPO
Base cabinet cushion (left)
1
AA
4-24
PCUSG0064YBPO
Base cabinet cushion (right)
1 AA
4-25
QTANP0048WREO Tab terminal
1
AG
4-26
PSLDP0008YBPO
Base cabinet side cushion
1 AA
4-27
PSPA-0044YBFA Sash spacer
1
AC
4-28
QFS-CQOOlYBEO
Fuse (10 A)
1
AE
4-29
RC-PZ0032YBEO
High voltage capacitor
1
BC
4-30
RTRN-0123WREO
Power transformer (220 V)
1
BW
RTRN-0124WREO Power transformer (240 v)
1
BW
4-31
PCAS-0017WRFA
Plug protection case
1
AE
4-32
QSW-C0004YBEO Main switch (O-l switch)
1
AT
(Continental Europe and south
Africa only)
4-33
RR-WZOOOlYBEO
Surge limiting resistor
1
AK
(Continental Europe only)
4-34
QFSHDQOOlYBEO
Fuse holder
1
AH
4-35
LCHSM0047WRWO
Relay board (Continental Europe
1
AF
4-36
only)
LANGQ0138YBWO
Noise filter mounting bracket
1
AC
(South Africa only)
4-37
RRLY-0057YBEO
Surge limiting relay
1
AZ
(Continental Europe only)
4-38
RFILN0017WREO
Noise filter
1
BA
(Continental Europe and
.
South Africa only)
4-39
LX-wzoo34wREo
Cabinet earth washer 2 AA
4-40 LX-WZ0013YBEO
Noise filter earth washer 1 AA
(Continental Europe and
South Africa only)
36
Page 39
CONTROL PANEL PARTS
\
Page 40
\‘----‘
-7.
38
Page 41
OVEN PARTS
3
L
b
fs
0
rp
(%r?z$yi w;
_1
0
6
(zJ---$.
39
Page 42
,
C
6b-C
Page 43
---7
Page 44
‘78 @SHARP CORP. (ZFI .55E) Printed in Japan.
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