Sharp R-8000E Service Manual

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SHARP SERVICE MANUAL

f’

SHARP

CONVECTION MICROWAVE OVW-

R-%OOOE

In the interests of user-safety the set should be restored to its original

qdition and only parts identical to those specified used.

RATION

- ’ ’

SERVICE MANUAL

SHARP

R-8000E

FOREWORD

This service manual is prepared to provide Sharp service personnel with complete service information on Sharp Convection 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 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.

SHARP CORPORATION

OSAKA, JAPAN

TABLE OF CONTENTS

Page

FOREWORD

.......................................................................

1

CNUTION, MICROWAVE RADIATION

....................................................

1

THUMB INDEX

.....................................................................

1

CHAPTER I PRODUCT DESCROPTION

...................................................

4

Specifications

...................................................................

4

Features of Control Panel

...........................................................

5

CHAPTER11 OPERATION .............................................................

6

NormalCookingSequence..

........................................................

6

Microwave.Cooking .............................................................

6

Convection Cooking.

.............................................................

6

Description of Operating Sequence

.....................................................

6

OffCondition

.................................................................

6

IdleCondition..

..............................................................

7

Microwave Cooking Condition.

.....................................................

7

FullPowerCooking

...........................................................

7

Defrost, Simmer, Roast or Warm Cooking ............................................

7

Preheating Condition

............................................................

.8

Convection Cooking Condition ..................................................... .8

Combination Cooking Condition ....................................................

.8

Description and Function of Components ................................................

14

Variable Cooking Control. .......................................................

.14

MicrowaveTimer...............................................................l 5

ConvectionTimer..............................................................l 5

DoorOpenMechanism...........................................................l 6

Upper and Lower Latch Switches.

..................................................

.16.

Monitor Switch (United Kingdom and Australia models):

....................................

16

Thermostat

................................................................

..17

Convection Cooking System

......................................................

.18

SheathHeater.................................................................l 8

CHAPTER111 SERvIC~G.............................................................l 9

Troubleshooting Guide.

...........................................................

.l9

OffCondition..............................’...................................l 9

IdleConition.................................................................l 9

Microwave Cooking Condition. .........................

-:

..........................

.20

Convection Cooking Condition

.....................................................

.2l

Test Procedures.

................................................................

.22

..

Magnetron Assembly Test.

.......................................................

.22

Power Transformer Test

.........................................................

.22

Upper Latch Switch Test ........................................................

.22

Lower Latch Switch Test ........................................................

.22

Vari-switchTest...............................................................2 2

Vari-motor Test

...............................................................

.22 Sheath Heater Test

............................................................

.23

ThermostatTest..................................:............................2 3

CamSwitchTest...............................................................2 3

Monitor Switch Test

...........................................................

.23

2

CHAPTER IV COMPONENT REPLACEMENT AND ADJUSTMENT PROCEDURES. . . . . . . . . . . . . . . . . . . . .

Warning.......................................................................2 4

Outer Case Removal.

.............................................................

.24

OvenLampRemoval....................................................~.........2 4

Power Transformer Removal

........................................................

.24

RectifierRemoval................................................................2 4

Hight Voltage Capacitor Removal.

....................................................

.24 Turntable Motor Removal.

.........................................................

.25

Surge Limiting Relay Removal (Continental Europe only). ....................................

.25

FanMotorRemoval...........:-...................................................2 6

Magnetron Assembly Removal.

......................................................

.26

Convection Motor Assembly Removal (Sheath Heater and Convection Motor)

.......................

.26

Control Panel and Components Removal

................................................

.28

Convection Timer

...........................................................

.28

CamSwitch................................................................2 8

Thermostat

.................................................................

.28

Vari-motor Assembly.

........................................................

.28

MicrowaveTimer........:....................................................2 8

Convection Lamp, Heater Lamp, Microwave Lamp

.....................................

.28

Cookswitch................................................................2 8

Upper Latch Switch and Monitor Switch (United Kingdom and Australia) Removal.

................... .30

Lower Latch Switch Removal

.......................................................

.30

Upper and Lower Latch Switches and Monitor Switch (United Kingdom and Australia) Adjustment

......... .3 1

Door Replacement and Adjustment

...................................................

.32

MICROWAVE MEASUREMENT. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .33

SCHEMATIC DIAGRAM (Continental Europe Model) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .34

PICTORIAL

DIAGRAM (Continental Europe Model) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .35

SCHEMATIC DIAGRAM (South Africa Model). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .36

PICPORIAC

DIAGRAM (South Africa Model). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .37

SCHEMATIC DIAGRAM (Australia Model) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .38

PICTORIAL

DIAGRAM (Australia Model) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .39

SCHEMATIC DIAGRAM (United Kingdom Model) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .40

PICTORIAL

DIAGRAM (United Kingdom Model) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .41

PACKING AND ACCESSORIES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...42

PARTS LIST.......................................................................43

3

CHAPTER I

PRODUCT DESCRIPTION

SPECIFICATIONS

Power requirements

22OV/24OV 50Hz

Power consumption Microwave output power Convection output power

Case dimensions

Width Height

BPfi

Cooking cavity dimensions

Width Height

&Ph

Turntable diameter Control complement

Weight

Single phase, 3 wire earthed

1.3kW (Microwave), 1.4kW (Convection) 650W (2 litre water load)

1.3kW nominal of Sheath Heater

552mm 395mm including feet

500mm

340mm 255mm 36Ornr-n 325mm

Cook Switch 60 min. Dual Speed Timer (Microwave Timer)

120min. Single Speed Timer (Convection Timer)

Variable Cooking Control

Repetition Rate:

25

: FULL POWER (HIGH)

-&I-

Full power through out the cooking time.

: ROAST (MEDIUM HIGH)

&r

23 sec. ON, 7sec. OFF, approx. 70% of full power

: SIMMER (MEDIUM)

l.Er

16.5 sec. ON, 13.5 sec. OFF, approx. 50% of full power

. .

: DEFROST (MEDIUM LOW)

9.8 sec. ON, 20.2 sec.

& : WARM (LOW)

OFF, approx. 30% of full power

5 sec. ON, 25 sec. OFF, approx. 10% of full power

Convection Temperature Control:

40°C 90°C to 250°C

Approx. 3 5kg

“u

---,A

v ----, -. -^

-_ - -_

FEATURES OF CONTROL PANEL

El

23

fi

tf

??J

6%

2%

1

0

Indicator Lamp for Convection Cooking (Orange)

------Timer for Convection Cooking

Temperature (Heater) Indicator Lamp (Red)

Temperature Control for Convection Cooking

Indicator Lamp for Microwave Cooking (Green)

Variable Cooking Control

7&r

: FULL POWER (HIGH)

A-

: ROAST (MEDIUM HIGH)

fr

: SIMMER (MEDIUM)

A-

*..

: DEFROST (MEDIUM LOW)

t.

liT

: WARM (LOW)

I

Timer for Microwave Cooking

Cooking Start Button

Door Open Button

5

CHAPTER II

OPERATION

NORMAL COOKING SEQUENCE

Microwave Cooking:

1. Place the food to be cooked in the oven and close the door firmly.

2. Set the variable cooking control for a desired position.

3. Set the microwave timer for a desired cooking time. The oven lamps will come on and the fan motor will rotate immediately. Note: When setting the timer for less than 1 minute,

turn the past 2 minutes position and back to

the correct time.

Note: Make sure that the convection timer is at “0”

position.

4. Push the Cooking Start button. The microwave lamp will glow to indicate the oven is in the cook cycle, and the turntable motor, microwave timer and vari-motor will operate. Note: If the oven door is opened by pushing the open

button during the cook cycle, the oven will go

out of the cook cycle (no microwave energy) and the microwave timer wilI stop. This is done so the exact cooking time remains on the timer.

To restore cooking operation, the door must be

closed and the Cooking Start button must be pushed again.

5. At the end of the cook cycle (timer returned to “O”), microwave lamp will go out and the timer bell will ring. The oven will stop supplying the microwave energy.

Convection Cooking:

1. Set the convection temperature control for a desired

position.

2. Set the convection timer for a desired cooking time. The oven lamps will come on and the fan motor will

rotate immediately.

Note: When setting the timer for less than 10 minutes,

turn the past 20 minutes position and back to the correct time.

Note: Make sure that the microwave timer is at “0”

position.

3.

The oven will stop supplying the heater energy.

Push the Cooking Start button. The convection lamp will glow to indicate the oven is

in the convection cooking cycle, and-the turntable

motor, convection timer, sheath heater and heater

lamp will operate.

Note: The heater lamp will light until the setting

temperature reaches. This heater lamp turns on

and off repeatedly to hold the preheat setting

temperature.

Note: If the oven door is opened by pushing the open

button during the convection cook cycle, the oven will go out of the cook cycle (no heater energy) and the convection timer will stop. This is done so the exact convection cooking time remains on the timer. To restore convection cooking operation, the door must be closed and the Cooking Start button must be pushed again.

4. The heater lamp turns on and off repeatedly when oven temperature has reached at the setting temperature.

5. Place the food to be cooked in the oven and close the door firmIly.

6. Set the convection timer for a desired cooking time, and Cooking Start button must be pushed again.

The convection timer now return to zero.

7. At the end of the convection cook cycle (convection.

timer return to “O”), convection lamp will go out and the timer bell will ring.

DESCRIPTION OF OPERATING SEQUENCE

The following is a complete description of component fanctions during the four stages of oven operation.

OFF CONDITION

Note: The following operations refer to the Continental

Europe Model and the others are quite similar in each model.

With both timers (microwave and convection) dial at “0” position and the door closed, no components in the oven will operate, Figure 1. But the oven lamps and fan motor will turn on with the door opened.

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IDLE CONDITION

Closing the door activates both door latch switches; upper latch switch and lower latch switch.

Microwave :

Selecting a cooking time closes the microwave timer contacts (7) -(8) leading to the oven lamps and fan motor, therefore the oven lamps and fan motor turn on, Figure 2.

Convection:

Selecting a cooking time closes the convection timer contacts 0-a leading to the oven lamps and fan motor, therefore the oven lamps and @n motor turn on, Figure 3.

MICROWAVE COOKING CONDITION

1.

FULL POWER COOKING The variable cooking control is set to Full Power (-tff) position and cooking time is selected by turning the

microwave timer.

Note: Make sure that the convection timer is at “0”

position.

t When the “Cooking Start” button is pushed, the

following operations occur: (Figure 4).

l-l. The microwave timer contacts (7)(8) and cook

switch are closed.

l-2 The microwave timer, microwave lamp, vari-motor

and surge limiting relay are energized through the convection timer contacts @ -0 and microwave timer contacts (2) - (3).

1-3 The-220 volts A.C. is supplied to a primary wind-

ing of the power transformer through the

vari-switch, and the surge limiting relay contacts.

l-4 The power transformer converts 3.15 volts AC.

output on the filament winding and approximately 2,000 volts A.C. on the high voltage winding.

l-5 The 3.15 volts A.C. output from fildment winding

heats the magnetron filament.

1-6 The 2,000 volts A.C. output from the secondary

winding is sent to a voltage doubler circuit consisting of a high voltage capacitor and a rectifier. The 2,000 volts AC. is converted to approximately 4,000 negative D.C. voltage (peak to peak) by the voltage doubler circuit and sent to the magnetron assembly.

1-7 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.

1-8 The RF energy produced by the magnetron

tube is channeled through a waveguide and then into the oven cavity where the food is placed to be cooked.

1-9 Upon completion of the selected cooking time,

the timer bell rings once. And the timer contact are deactivated. The oven reverts to the OFF condition.

Note: On the Australia and United Kingdom models.

The monitor switch is electrically monitoring the operation of the upper latch switch and is mechanically associated with fhe door so that it will function in the following sequence. (1) When the door opens from closed position,

the 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 open position,

the monitor switch confacts first open, and then the contacts of the upper and lower latch switches close.

I

In the case upper latch switch fails with its contacts closed when the door is opened, the monitor switch will form a short circuit through the fuse and the upper latch switch.

2. DEFROST, SIMMER, ROAST OR WARM COOKING.

When the “cooking start” button is pushed and the variable cooking control is set to “DEFROST (-&- )” “SIMMER ( -&- )“, “ROAST ( -& )” or “WARM ( -& )“, the following operations occur.

2-l. Above l-l operation occurs. 2-2 The vari-motor rotates at two (2) revolutions

per minute. In case the cooking control is set to

“DEFROST ( -&--)“, the 220 volts A.C. is supplied to the power transformer intermittently through the vari-switch which is operated, at approx. 10 seconds ON and 20 seconds OFF repetition rate by means of a cam linked to the vari-motor shaft. The repetition rate for others are as follows;

WARM (fi) : approx. 5 seconds ON, 25

seconds OFF

SIMMER (A) : approx. 16 seconds ON, 14

seconds OFF

ROAST (A): approx. 23 seconds ON, 7

seconds OFF

2-3 The 2,000 and 3.4volts A.C. outputs are produced

when the 220 volts AC. is supplied to the power transformer.

2-4 Then above 1-2, 1-3, 14, l-5,1-6, l-7,1-8 and 1-9

operations occur.

7

PREHEATING CONDITION

Set the preheating temperature by turning the temperature

control knob (at 90°C to 25O”C), and preheating time at 20 minutes.

When the “Cooking Start” button is pushed the following operations occur: (Figure 5).

1.

The contacts @ - @ of convection timer and cook switch are closed.

The fan motor, oven lamps and

turntable motor are energized.

2. The contacts @ -@ of convection timer is closed. The convection timer and convection lamp are energized.

3.

The 220 volts A.C. is supplied to the sheath heater and heater lamp through the thermostat.

4. In case the temperature control is set at 40°C:

The contacts (COM)-(NC) of cam switch closed to provide a current path to the convection motor through the thermostat.

In case the temperature control is set at 90°C to

250°C:

The contacts (COM)-(NO) of cam switch closed to provide a current path to the convection motor through the convection timer contacts 0 - @ .

5. When the temperature of the therm0 rod which is mounted to the back oven cavity, rises above the selected temperature, the circuit to the sheath heater and heater lamp are de-energized by the thermostat. But other components remain in operation. When the temperature of the therm0 rod drops below the selected temperature, the 220 volts A.C. is supplied to the sheath heater and heater lamp.

6.

The preheat temperature has been reached. The sheath heater and heater lamp will cycle on and off by thermostat to maintain the selected temperature .

CONVECTION COOKING CONDITION

When the preheat temperature is reached, open the door and place the food to be cooked in the oven. Then set the desired convection temperature and cooking time by turning the temperature control knob and convection timer.

When the “Cooking Start” button is pushed, the following

operations occur:

1.

The convection and heater lamps light.

2.

The fan motor, oven lamps, t.urntable motor, convec-

tion timer, convection motor and sheath heater are

energized.

3. Upon completion of the selected cooking time, the timer bell rings, and the all contacts of the convection timer are deactivated. The oven reverts to the OFF condition.

Note: When both microwave and convection timers are

set, convection cooking takes place first. In this case, the microwave operation will begin automatically when the convection timer returns to “0” position.

COMBINATION COOKING CONDITION

Set the preheating temperature and preheating time at 20 minutes. When “Cooking Start”

button is pushed, the following

operations occur:

1.

The convection and heater lamps light.

2.

The fan motor, oven lamps, turntable motor, convection timer, convection motor and sheath heater are energized.

3.

The 220 volts AC. is supplied to the sheath heater.

4. When the oven temperature reaches to the selected temperature, the convection lamp and sheath heater will cycle on and off by thermostat.

5.

Now, the oven is preheating condition;

When the preheat temperature is reached, open the door

and place the food to be cooked in the oven. Then set the desired convection temperature and cooking time, desired microwave cooking control and cooking time.

When the “Cooking Start” button is pushed, the following

operations occur:

1. First the oven is operating the convection cooking.

2.

When the timer returns to zero, the timer bell will ring

and microwave timer will operate automatically.

3. Now, the oven is operating the microwave cooking,

4.

At the end of the microwave cook cycle, the timer bell will ring and all components are de-energized.

-..

--x

\

-~N.-“d ‘. . - -__- -~~- - ---.

220V 50Hz

FUSE

26OV T6.3A

LINE BYPASS CAPACITOR

I

1

LINE

RESISTOR

BYPASS

A

CAPACITOR

FAN MOTOR

LOWER LATCH SWITCH

NOTE: CONDITION

1. DOOR CLOSED

CONVECTION 0

TURNTABLE 1 IA-.-A-

L----

-___ ---1

----r--

------- ---- --

MICRO

A nnwv2nlAiauc

TllhRCD &

TIMER

I.II”b .“..A” L I IIWL”

4c

,, CONTACTS

MICROWAVE

(3)

LAMP

0

I’

TIMER

1 CONTACTS 0

THERMOSTAT

THERM0

( 1

SWITCH

((2)

-01 JT

VARI-MOTOR --

--I ’

I

0

1

SURGE

LIMITING

RESISTOR

SURGE LIMITING RELAY

L! - ------

, POWER TRANSFORMER

RECTIFIER

VOLTAGE

t

MAGNETRON

Figure 1. Oven Schematic-off condition

9

220V 50Hz

LINE BYPASS CAPACITOR

a

J-7

r

LOWER LATCH SWITCH

‘%

‘r,

-\ cc,

___.. -. ‘. ;

r----

----

1

I@--;

1

I

E

e

I

I- ____ -----J

m

FUSE

250V T6.3A

RESISTOR

FAN MOTOR

-

RESISTOR

Ty-T

LINE ACROSS

CAPACITOR

&

n+

MAGNETRON THERM0 CUT.

h

LINE BYPASS

7 CAPACITOR

-OUT

ZOM

-1

INC

OVEN LAMP

TURNTABLE

UPPER LATCH

SWITCH

I

COOK

CONVECTION 0

--

-1 0’ SWITCH

THERMOSTAT

MICROWAVE

LAMP

VARI-MOTOR -----

0

LJ

SURGE

_ _ ----

-------

LIMITING

RESISTOR

SURGE LlMlTlhiG RELAY -I

POWER TRANSFORMER

Figure 2. Oven Schematic-Idle Condition (Microwave)

10

220V 50Hz

\“‘I

M

r----

---_ 1

I

! N

WIW I

1

I

FUSE

25OV T6.3A

LINE BYPASS CAPACI TOR ,

FAN MOTOR

LINE ACROSS CAPACITOR

LINE BYPASS CAPACITOR

LOWER LATCH

SWITCH

SCHEMATIC

NOTE: CONDITION

OF OVEN

1. DOOR CLOSED

2. CONVEC. TIMER “ON”

3. TEMP. CONTROL “#400C”

i

OVEN LAMP

r-l

_ COM

-- I

TURNTABLE MOTOR

MAGNETRON THERM0 CUT-O\

UPPER

CONVECTION

, LAMP

I---

L

I- u-l

________ ,-I ____ ---- -----

ii

MICRO

MICROWAVE TIMER

TIMER

,, CONTACTS

MICROWAVE

(4)

(5)

(3)

_____----mm---

VARI-SWITCH

SURGE

__----- -----

LIMITING

RESISTOR

SURGE

LIMITING RELAY

SURGE

LIMITING RELAY

RECTIFIER

CAPACITOR

RECTIFIER

-- -----

POWER TRANSFORMER

MAGNETRON

Figure 3. Oven Schematic-Idle Condition (Convection) Figure 3. Oven Schematic-Idle Condition (Convection)

11 11

LAMP

VAR I-MOTOR

JT

220V 50Hz

-

RESISTOR

LINE BYPASS CAPACITOR

L

RESISTOR

LINE ACROSS

CAPACITOR

FAN MOTOR

LOWER LATCH

SWITCH

I

OVEN LAMP

MICROWAVE TIMER

MICROWAVE LAMP

0

r--d7

L---~--l

VAR I-MOTOR

0

L--------------

SCHEMATIC

NOTE: CONDITION

OF OVEN

1. DOOR CLOSED

2. MICRO. TIMER “ON”

3. VARIABLE COOKING” CONTROL

““FULL POWER”

4 . COOK SWITCH”ON”

SURGE LIMITING RELAY -.

I

-_ ~--

-- -

RECTIFIER

CAPACITOR -

MAGNETRON

I

FUSE

250V T6.3A

LINE BYPASS

A

CAPACITOR

/ MAGNETRON

THERM0 CUT-OUT

.

UPPER LATCH SWITCH

COOK SWITCH

: CONVEC.

I TIMER

! CONTACTS 0

THERMOSTAT

(

THERM

“> SWITCH

(2)

_ MICRO

TIMER CONTACTS

u

(3)

- VARI-SWITCH

SURGE

LIMITING

RESISTOR

POWER TRANSFORMER

Figure 4. Oven Schematic-Microwave Cooking Condition (Full Power)

12

220V 50Hz

LINE BYPASS

A3 <

CAPACITOR

SCHEMATIC

NOTE: CONDITION

OF OVEN

1. DOOR CLOSED

2. CONVEC. TIMER “ON”

3. TEMP. CONTROL “90°C to 25O’C”

4. COOK SWITCH “ON”

r----

----

1

I

FUSE

250V T6.3A

1

RESISTOR

TyT

LINE

. :

RESISTOR

LINE ACROSS

CAPACITOR

BYPASS

A

CAPACITOR

7

FAN MOTOR -

hEE[ 5%OUT

r

I

T 1 AT-t-”

-

TURNTABLE

LPiIb”

SWITCH

COOK

I

; LAMP r---------

-1 I

; SHEATH

THERMOSTAT

0

; HEATER

4)

(

THERM0 SWITCH

)

; CONVECTION

\J

Y

1 MOTOR

COM?: I ; HEATER

1 LAMP /------

MICROWAVE

LAMP

MICROWAVE TIMER ’

(

I--VI

VAR I-MOTOR

-

CONTACTS

(3)

- 7

SURGE LIMITING RELAY

1

.- VARI-SWITCH

r-iii

SURGE

LIMITING RESISTOR

POWER TRANSFORMER

Figure 5. Oven Schematic-Convection Cooking Condition

13

/’ ’

DESCRIPTION AND FUNCTION OF COMPONENTS

VARIABLE COOKING CONTROL

The variable cooking control consists of the vari-motor,

the power transformer intermittently within a 30

vari-switch, gear, select lever bracket assembly, etc.

seconds time base. A half (l/2) of full power would be

the purpose of the vari-motor is to rotate a cam which

approx. 16 seconds of the switch on the 14 seconds of off

is going to turn the vari-switch on and off within 30

time. The following chart shows the vari-switch operation

seconds time base.

in the various modes. The vari-switch is operated ON by the cam lever and cam which are linked to the vari-motor shaft. If the variable cooking control is set at WARM, DEFROST, SIMMER or ROAST position,

220/240 volts A.C. is supplied to

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.

_ ON

5 Seconds

OFF (25 sec.)

Microwave Power = Approx. 10%

ON

*:

DEFROST

. (MEDIUM LOW)

9.8 Seconds

OF F (20.2 sec.)

Microwave Power = Approx. 30%

ON

SIMMER

: (MEDIUM)

16.5 Seconds

OFF (13.5 sec.)

Microwave Power = Approx. 50%

ON

-25

ROAST

: (MEDIUM HIGH) 23 Seconds

OFF (7 sec.)

Microwave Power = Approx. 70%

25:

FULL POWER

.

Microwave Power = 100%

(HIGH)

k-30 Seconds N

14

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- I .__^. _. ._ . __. - %.

MICROWAVE TIMER

Timer switch contacts:

Timer motor:

The timer switch contacts are mechanically opened or closed by turning the timer knob located on the timer motor shaft.

The contacts (7)-(8) control the current path to the oven lamps and fan motor, etc. The contacts (2)-(3) control the current path to the

microwave timer, microwave lamp, vari-motor and power

transformer through the vari-switch.etc.

Timer is single speed type: cook time from 0 to 120 minutes may be selected with the timer. The dial is divided in 5 minutes intervals. The timer motor is energized through the cook switch, upper latch switch and convection timer contacts @ - 0. When the timer reaches the 0 point on

the scale, both timer contacts @ - @ and @ -0 open the circuit to the fan motor, oven lamps, turntable motor, convection timer, convection lamp, sheath heater, con-

vection motor and heater lamp, and the convection cook

cycle stops.

Timer bell: The bell striker is mechanically driven by the timer motor and rings once at the end of the microwave cook cycle.

Timer motor: Timer is dual speed type: cook time from 0 to 60 minutes may be selected with the timer.

Continental Europe:

Up to 5 minutes the dial is divided in 15 second inter-

vals. From 5 minutes to 10 minutes the dial is divided in 30 second intervals. From 10 minutes to 60 minutes the dial is marked off in 5 minute intervals.

‘

United Kingdom, Australia and South Africa:

Up to 10 minutes the dial is divided in 15 second. intervals. From 10 minutes to 60 minutes the dial is marked

off in 5 minute intervals.

The timer motor is energized through the cook switch, upper latch switch, convection timer contacts @ - @ and

microwave timer contacts (2)-(3). When the timer reaches

the 0 point on the scale, both timer contracts (7)-(8) and (2)-(3) open the circuit to the fan motor, oven lamps, turntable motor, microwave timer, microwave lamp and vari-motor, and the microwave cook cycle stops.

CdN-VECTION TIMER

Timer switch contacts: The timer switch contacts are mechanically opened or closed by turning the timer knob located on the timer motor shaft.

The contacts @ - @ control the current path to the oven lamps and fan motor, etc. The contacts @ - @ opens and then contacts @ - @ is closed. The contacts @ - @ control the current path to the convection timer, convection lamp, sheath heater, convection motor and heater lamp through the thermostat when temperature is set 90” to 250°C.

Timer bell: The bell striker is mechanically driven by the timer motor and rings once at the end of the convection cook cycle.

Timer shaft: Cams are inserted into the timer shaft. When the timer shaft is wound up, these cams operate to close a damper so that no hot air will be allowed to leak out of the oven cavity.

When the timer reaches 0 point, the damper is

opened by the cam.

Figure 6 Convection Timer Desired Time Set

15

DOOR OPEN MECHANISM

The door can be opened by pushing the open button on the control panel, refer to Figure 7.

Pushing the open button, the open plate on the open device pushes the door lever on the door. Therefore, the lower and upper latch heads remove upwards, and then those latch heads are released from the lower and upper latch hooks. Now, the door can be opened.

UPPER AND LOWER LATCH SWITCHES The upper latch switch is mounted in the upper latch hook

and the lower latch switch is mounted in the lower 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 lamps and fafi motor. A cook cycle cannot take place until the door is firmly closed thereby activating both switches.

MONITOR SWITCH (UNITED KINGDOM AND AUSTRALIA MODELS)

The monitor switch mounted on the upper latch hook is

activated (the contacts opened) by the latch head on the door while the door is closed. The switch is intended to render the oven inoperative by means of blowing the fuse when the contacts of the upper latch switch fail to open when the door is opened.

Functions;

1. When the door is opened, the monitor switch contacts close (to the ON condition) due to their being a normally closed. At this time the upper latch switch is

in the OFF condition (contacts open) due to its being a

normally open contact switch.

2. As the door goes to a closed position, the monitor switch contacts are first opened and then the upper latch switch contacts close. (In case of opening the door, each of the two 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 AND MONITOR SWITCH FOR PROPER OPERATION (REFER TO THE TEST PROCEDURE ON PAGES 22 AND 23.)

Note: The

‘Door Open

Button

Figure 7. Door Open Mechanism

nitor

itch

Latch

Switch

monitor switch is provided on United

Kingdom and Australia Models.

Figure 8. Latch Switches and Monitor Switch

16

THERMOSTAT

The thermostat is composed of thermo-rod, shaft, contacts etc. The oven cavity temperature is sensed through a pushed hole provided at the cavity rear by means of the thermo-rod. Furthermore, the oven cavity temperature can be preset by turning the temperature control knob to a desired position. Setting temperature range : 4O”C, 90°C to 250°C Thermostat contacts connected to sheath heater, convection motor and heater lamp.

1. During cook cycle: The thermostat contacts close and above components are energized.

2.

During hold temperature:

-.

When the cavity temperature reached the preset degree,

the thermostat contacts open and close again several

minutes later to thereby maintain the cavity temperature at the preset degree as shown in Figure 9. Thermostat contacts repeat ON-OFF operation by action of the thermo-rod so that they open at the moment, when the oven cavity temperature reached the preset degree, and close again several minutes later to thereby maintain the cavity temperature at the preset degree as shown in Figure 9.

Setting temperature

(9OOC to 25OOC)

Tembrature into o&n

kvity

I

I ’ ’ : ’ ,

f----~~~~

I : I ’

(40°C 1

SHEATHHEATER and HEATER LAMP

*

I ON

I ,

; I

I I Time&--

I I

I ’

’ i ;

I t I ’ I I

’ ;ONi

jONi !ON

SHEATHHEATER CONVECTION MOiOR; oFF ‘; oFF “w” oFF OWN OFF

and HEATER LAMP

Function of Thermostat

This thermostat actuates their contacts by changing the pressure of oil filled in a capillary tube according to tempe-

rature rise. Clockwise turn (High Temp.) of the temperature control knob will expand gap-A and anticlockwise turn (Low Temp.) of the same will reduce gap-A, as shown in Figure

10. Normally, contact is in ON position.

With cook, oil temperature in the thermo-rod rises and the oil is pressurized by capillary tube. When the cavity temperature reached the preset degree, the boss pushes the depressor by pressure from the capillary tube to thereby turn the contacts to OFF

position. When the oven cavity temperature comes down below the preset degree, the oil pressure is reduced and the depressor returns to its original position to thereby turn the contact to ON position. ON-OFF operation of the contacts is repeated till

cooking time elapses to “0”.

/ 6°C

Fixed

THERMO-

STAT

Temperature control shaft

Movable contact plate

Figure 9. Figure 10. Thermostat Function

17

CONVECTION COOKING SYSTEM

This oven is designed with a hot air heating system where food is not directly heated up by the sheath heater, but is instead heated by forced circulation of the hot air produced by the sheath heater. The air heated by the sheath heater is circulated through the convection passage provided on the outer casing of the oven cavity by means of the convection fan which is driven by the convection motor.

It then enters the inside of oven through the vent holes provided on the around and back side of the oven. Next, the hot air heats up the food on the turntable and leaves the oven cavity through the vent hole in the center of the back cavity ceiling. Without leaving the

oven, this hot air is reheated by the sheath heater, passes through the convection passage and enters the inside of the oven cavity again, in a continuing cycle.

In this way, the hot air circulates inside the oven cavity to

raise its temperature and, at the same time, comes into contact with the food begin cooked. When the temperature inside the oven cavity reaches

the preset temperature, the sheath heater is deenergized.

When the temperature inside the oven cavity thereafter

drops below the preset temperature, the sheath heater is energized again. In this way, the inside of the oven cavity is maintained at approximately the preset temperature.

When the convection timer reaches 0 p.oint, the sheath heater is de-energized and the convection fan stops

operating. Although the damper will open and the fan motor normally turn off when the convection timer reaches “0”.

SHEATH HEATER

The sheath heater is located on the back of the oven cavity as illustrated in Figure 11. It is intended to heat air driven by the convection fan. The heated air is kept in the oven and forcedly circulated and reheated by the sheath heater.

Door

Oven Cavity

\

Convection Passage

/

Sheath heater

Dish

!

Turntable

Motor

Figure 11.

Auxiliary Fan

Convection Motor

Convection Fan

‘W

-+b c.ir’ _ L,- -. . - II

18

CHAPTER Ill

SERVICING

TROUBLESHOOTING GUIDE

men 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: United Kingdom and Australia Models.

If the oven becomes inoperative because

of a blown fuse in the lower latchmonitor switch circuit, check the lower latch switch and monitor 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.

Oven lamp doesnot light with door opened.

(Timer is at “0” position.)

No power from service entrance.

Open wire in power cord or wire harness.

Blown fuse.

Check wall outlet.

Replace same or repair wiring.

Check for short circuit and replace fuse.

Fan motor.does not operate.

Defective oven lamp.

Defective lower latch switch

Open or loose wire connection to the above components.

Defective fan motor.

Open or loose wire connection.

Replace both oven Lamps.

Procedure 4.

Check wiring.

Procedure C on GENERAL.

Check wiring.

Microwave :

IDLE CONDITION

With the microwave tuner set, oven

lamp does not light.

Defective oven lamp

Defective timer contacts(7) - (8).

Open or loose wire connection.

Replace both oven lamps.

Procedure H on GENERAL .

Check wiring.

Fan motor does not operate.

Defective fan motor.

I---

Open or loose wire connection.

Procedure C on GENERAL .

Check wiring.

Covection:

With tl re convection timer n.-s+ a.,,

XL, uven lamp does not light.

Fan motor does not operate.

i

Defective oven lamp.

Defective timer contacts @ - @ .

Open or loose wire connection.

Defective fan motor.

Open or loose wire connection.

Replace both oven lamps.

Procedure H on GENERAL.

Check wiring.

Procedure C on GENERAL.

Check wiring.

19

TROUBLESHOOTING GUIDE (CONT’D)

PROBLEM

POSSIBLE CAUSE

TEST PROCEDURE OR

CORRECTION

MICROWAVE COOKING CONDITION

Microwave lamp does not light when

Defective cook switch.

Replace.

cook switch is pushed.

Defective magnetron therm0 cut-out.

Procedure D on GENERAL.

Defective upper latch switch

Procedure 3.

Defective lower latch switch

Procedure 4.

Defective convection timer contacts 0 - @ .

Procedure H on GENERAL.

Defective microwave timer contacts (2)-(3).

Procedure H on GENERAL.

Defective microwave lamp.

Replace.

1 Open or loose wire connection to the above Check wiring.

components.

Microwave lamp lights but turntable

motor does not operate.

Defective turntable motor. Replace.

Microwave lamp lights, But microwave timer does

not operate.

Defective microwave timer contacts (7)-(8).

Open or loose wire connection.

Defective microwave timer.

Open wiring in circuit to the microwave timer.

Procedure H on GENERAL

Check wiring.

Oven seems to be operating, but little or no heat is produced in oven load. (Variable cooking control is set at “ -&: FULL POWER” position.)

Defective vari-switch.

Defective magnetron.

Defective rectifier.

Procedure 5.

Procedure 1.

Procedure M on GENERAL.

Oven operates normally when the variable cooking control is set at

“ -& : FULL POWER” position,

but not in any other mode.

Open goes into cook cycles, but extremely uneven heating is produced in oven load.

Defective high voltage capacitor

Defective power transformer.

Open or loose wire connection.

Defective vari-motor.

Open or loose wire connection.

Defective variable cooking mechanism.

Turntable does not rotate during cook cycle due to the motor failure.

-.

Procedure N on GENERAL.

Procedure 2.

Check wiring.

Procedure 6.

Check wiring.

Check.

Replace turntable motor or check wiring.

Oven goes into cook cycle, but shut down before end

of cycle.

Magnetrol therm0 cut-out is open.

Open or loose wire connection.

Procedure D on GENERAL.

Check wiring.

20

.’

-u L. “L.

-,.. -_-._ - -

TROUBLESHOOTING GUIDE (CONT’D)

PROBLEM

POSSIBLE CAUSE

TEST PROCEDURE OR

CORRECTION

-1

CONVECTION COOKING CONDITION

Convection lamp does not light when cook switch is pushed.

Defective cook switch.

Replace.

Defective magnetron therm0 cut out.

Defective upper latch switch.

Defective lower latch switch.

Defective covection timer contacts

0-0.

Defective convection lamp.

Open or loose wire connection to the above components.

Check conductive and replace.

Procedure 3.

Procedure 4.

Procedure Hon GENERAL

Replace.

Check wiring.

Convection lamp lights, but tumbable motor does not operate.

Defective turntable motor.

Replace.

Convection lamp lights, but zonvection timer does not operate.

Defective convection tuner contacts 0-B.

Open or loose wire connection.

Defective convection timer.

Open wiring in circuit to the convection

timer.

Procedure H on GENERAL

Check wiring.

Procedure H on GENERAL.

Check wiring.

Convection lamp lights, but heating element does not heat with setting temperature at 90°C to 12OOC.

remperature in the oven cavity is lower or higher than preset temperature.

Procedure 8.

Procedure 7.

Check wiring.

Procedure 7.

Procedure 8.

Procedure A on GENERAL

Procedure 9.

Check.

Convection lamp Lights, but heater iamp does not on and off.

-

Defective thermostat.

Defective sheath heater.

Open or loose wire connection to the above components.

Defective sheath heater.

Defective thermostat.

Defective convection motor.

Defective cam switch.

Defective drive mechanism of convection

fan.

Defective thermostat.

Defective heater lamp.

Open or loose wire connection to the above components.

Procedure 8.

Replace.

Chek wiring.

21

TEST PROCEDURES

PROCEDURE

NUMBER

COMPONENT TEST

1

MAGNETRON ASSEMBLY TEST

HlGH 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; rectifier, high vcltage 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 primary input terminais and measure the resistance with an ohmmeter. Check for the continuity of coils with an ohmmeter. On the RX1 scale, the resistance of the primary coil should be approximately 1.5 ohms and the resistance of high voltage coil should be approximately 105 ohms, and the resistance of filament coil

should be lessthan 1 ohm. With 220/240 volts A.C. applied to the primary winding, the voltage across the filament

tiding should be approximately 3.15 volts A.C. (HIGH VOLTAGES ARE PRESENT TO HIGH VOLTAGE

TERMINAL, SO EXTREME CAUTION SHOULD BE OBSERVED.)

3

UPPER LATCH SWITCH TEST

The upper latch switch can be checked with an ohmmeter.

Isolate the switch and then connect the meter leads to the common (COM) and normally open (NO) terminals of ths switch. The meter should indicate an open circuit with the door opened and a closed circuit with the door closed. In case improper operation is indicated, make a necessary switch adjustment or replace the defective switch. See adjustment procedure on page 31.

4 LOWER LATCH SWITCH TEST

Isolate the switch and connect the ohmmeter leads to the common (COM) and normally open (NO) 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 connected to the common (COM) and normally closed (NC) 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 a necessary switch adjustment or replace the defective switch. See adjustment procedure on page 31.

5 VARI-SWITCH TEST

The vari-switch .is activated by the cam lever and cam. When the Variable cooking control 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 action of the cam lever. The vari-switch can be checked with an ohmmeter. When the meter leads connected to the common (COM) and normally open (NO) terminals of the switch, it should indicate a closed circuit with the cam lever depressed and an open circuit with the cam lever released. If improper operation is indicated, replace the vari-motor assembly.

6

VARI-MOTOR TEST

The vari-motor rotates two (2) revolutions per minute.

Check if 220/240 volts is present between the motor terminals. If voltage is present, but the motor does not turn, ,

replace the vari-motor assembly. If no voltage is present, check for loose or broken wire connections.

22

- _. ’ * _-_-.- _

TEST PROCEDURES (CONT’D)

PROCEDURE

NUMBER

7

COMPONENT TEST

SHEATH HEATER TEST

Make sure the heating element is fully cooled and test the foIlowings. a. Disconnect heater leads and measure the resistance with an ohmmeter. On the RX1 scale, the resistance between

the heater leads should be approximately 35 ohms on Continental Europe and South Africa Models, and approximately 42 ohms on Australia and United Kingdom Models.

b. Disconnect heater leads and measure the insulation resistance with 500V-lOOMs2 insulation resistance meter.

The insulation resistance between heater lead and cavity should be more than 1MsL.

8

THERMOSTAT TEST

1. Heater lamp does not light during the convection cooking. (no heater energy) Disconnect the wire leads from the thermostat terminals and connect the ohmmeter leads between the terminals. The meter should indicate a closed circuit. If it indicates a open circuit, replace the thermostat.

2. Heater lamp does not turn off when oven temperature seems to be reached at the set temperature. (Heater energy does not be deenergized) Set the temperature control knob at the 25O’C position and keeps it aging for 15 minutes. After 15 minutes, on setting the temperature control knob at approx. 200°C position, the heater lamp will turn on or off after approx. 5 minutes.

If the heater lamp should not turn on/off in this case, replace the thermostat.

9

CAM SWITCH TEST

This switch is mounted to the thermostat and turned on and off by temperature control knob and cam. Disconnect the 6-pin connector from the main wire harness, and Red wire leads from the thermostat terminal. Connect the ohmmeter leads to the common (COM) and normally open (NO) terminals of the switch. The meter should indicate an open circuit with set the temperature control knob at 40°C position and a closed circuit with set the temperature control knob at 90°C position.

When the meter leads connect to the common (COM) and normally closed (NC) terminals of the switch, it should

indicate a closed circuit with set the temperature control knob at 40°C position, and an open circuit with set the temperature control knob at 90°C position. In case improper operation is indicated, replace the defective switch.

10

MONITOR SWITCH TEST

(Australia and United Kingdom)

Before performing this test, make sure that the Upper and Lower Latch Switches are operating properly refer to the

Test Procedure 3 and 4. Connect one ohmmeter lead to one of the fuse terminals, and the other lead to the power transformer terminal to

which the white wire from the wiring harness is connected. When the door is open, the meter should indicate a close circuit. When the switch actuator of the upper latch hook is pushed by the screw driver through the upper 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 and open circuit.

In case improper operation is indicated, replace the defective switch.

POWER TRANSFORMER

/

/ UPPER

LATCH

ACTUATOR

23

CHAPTER IV

\

COMPONENT REPLACEMENT AND ADJUSTMENT PROCEDURES

WARNING: to avoid possible exposure to microwave

2. There is a broken dooc hinge or support.

energy;

3. The door gasket or seal is damaged.

A. Before operating the oven;

4. The door is bent or warped.

1. Make sure that unlatching the door slowly is

5. There is any defective parts in the interlock, oven

accompanied by a click indicating actuation of

door or microwave generating -and transmission

the interlock switches.

assembly.

2. Check visually the door seal for arcing and damage.

6. There is any other visible damage to the oven.

B. Do not operate the oven until after repair if any of

C. Do not operate the oven;

the following conditions exist;

1. Without the RF gasket.

1. Door does not close firmly against the front of

2. If the waveguide and oven cavity are not intact.

appliance.

3. If the door is not closed.

OUTER CASE REMOVAL

To remove the outer case, refer to Figure 12 and proceed as follows:

1. Disconnect the oven power supply.

2. Remove the screws from the rear and along the side edge of the case.

3. Slide the entire case back about 3cm to free it from retaining clips on the cavity face plate.

4. Lift the entire case from the unit.

CAUTION: DISCHARGE THE HIGH VOLTAGE CAPA-

CITqR BEFORE TOUCHING ANY OVEN COMPONENTS OR WIRING.

1;

Disconnect the oven power supply.

POWER TRANSFORMER REMOVAL

1.

2.

3.

1.

2.

3.

1.

2.

3.

Disconnect the oven power supply and remove the

outer case. Discharge the high voltage capacitor. Disconnect the wire leads of transformer from the magnetron and high voltage capacitor.

Disconnect the oven power supply and remove the outer case. Discharge the high voltage capacitor. Disconnect the terminal of rectifier from the capacitor.

HIGH VOLTAGE CAPACITOR REMOVAL

Disconnect the oven power supply and remove the

outer case. Discharge the high voltage capacitor. Disconnect the wire leads and terminal of rectifier

from the capacitor.

OVEN LAMP REMOVAL

2. Loosen the screw to open the lamp access cover, and then remove the oven lamp.

4. Disconnect the wire leads from the power transformer.

5. Remove the two (2) screws holding the transformer to

the chassis base.

6. Remove the transformer.

RECTIFIER REMOVAL

4. Remove thesingle (1) screw holding the rectifier to the mounting bracket.

CAUTION: WHEN REPLACING THE RECTIFIER,

THE EARTH SIDE TERMINAL MUST BE SECURED FIRMLY WITH AN EARTHING SCREW.

4. Remove the single (1) screw holding the capacitor holder to the mounting bracket.

5. Remove the capacitor.

24

-,,.z.: “- . *L ____. _ ,

TURNTABLE MOTOR REMOVAL

1. Disconnect the oven power supply.

2. Remove the single (1) screw holding the turntable

motor cover to the bottom side of the chassis base.

3: Remove the turntable motor cover.

4. Remove the four (4) screws holding the turntable motor mounting plate to the chassis base.

5. Take out the turntable motor with the wire leads and mounting plate attached.

6. Disconned the wire leads from the motor. The motor assembly is now free.

7. Remove the four (4) screws holding the turntable

motor to the mounting plate. The motor is now free.

SURGE LIMITING RELAY REMOVAL

(Continental Europe only)

1. Disconned the oven power supply *and remove the outer cace.

2. Discharge the high voltage capacitor.

3. Remove the power transformer, refer to “Power Transformer Removal.”

4. Disconnect the wire leads from the relay.

5. Remove the tow (2) screws holding the relay to the main chassis.

Capaci

tor mounting ?t

Main chassis

Oven lamp access cover

,Surge limiting

. YAW resistor

Cord mounting bracket Cord anchorage (lower)

-Turntable motor corer

Figure 12. Outer Case and Chassis Components

25

FAN MOTOR REMOVAL

,

1.

2.

3.

4.

Disconnect the oven power supply and remove the outer case.

5.

Discharge the high voltage capacitor.

Disconnect the wire leads from the fan motor.

Remove the single (1) screw holding the damper joint rod to the damper mounting bracket and remove it

from the cooling duct (A).

Release the tabs which are provided on the cooling duct (B) to hold the cooling duct (A).

1.

2.

3.

4.

5.

6.

Disconnect the oven power supply and remove the

outer case.

Discharge the high voltage capacitor.

Disconnect the wire leads from the magnetron’assemb-

ly and the therm0 cut-out.

Release the tab which is provided on the cooling duct

(B) to hold the cooling duct (A).

Remove the two (2) screws holding the cooling duct

(B) to the magnetron,

Remove the cooling duct (B) from the unit.

1.

2.

3.

4.

5.

6.

7.

Disconnect the oven power supply and remove the

outer case. Discharge the high voltage capacitor. Take off the fuse and remove the single (1) screw holding the fuse holder to the cord mounting bracket. Disconnect the wire leads (Red, white and Yellow/ Green stripe) by loosening the mounting screws. Remove the single (1) screw holding the chassis support to the rear cabinet. Remove the two (2) screws holding the cord holder to the unit. Remove the seven (7) screws holding the rear cabinet to the unit. Then remove the rear cabinet with mains supply cord unit attached.

8.

9.

10.

11.

12.

13.

\

Remove the two (2) muts and washers holding the wire

4. Remove the three (3) screws holding the mounting

leads to the sheath heater terminals.

bracket to the thermal protection cover (A).

Disconnect the wire leads from the convection motor.

5. Remove the auxiliary fan and washer from the motor

Remove the ten (10) screws from the lower and side

shaft.

edge of the convection motor assembly.

6. Remove the two (2) nuts holding the mounting bracket

Take off the convection motor assemble slowly and

to the motor.

release the tab which is mounted the therm0 lod of

7. Remove the E-ring from the motor.

thermostat.

The motor is now free.

Remove the therm0 rod up ward straghtly. The convection motor assembly is now free.

. . ..- _---- --_ .,SL _

6.

7.

8.

9.

10.

Remove the four (4) screws holding the chassis support to the control panel back plate, cooling duct (A), waveguide and back cabinet. Remove the chassis suppoSt. Take out the fan motor assembly. Remove fan blade with the fan retainer clip attached. Remove the two (2) screws and nuts holding the fan motor to the cooling duct (A).

MAGNETRON ASSEMBLY REMOVAL

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 therm0 cut-out and damper guide by loosenmg the mounting screws.

CAUTION:

WHEN REPLACING THE MAGNETRON, BE SURE THE R.F. GASKET IS IN PLACE AND MOUNTING NUTS ARE TIGHTENED SECURELY.

CONNECTION MOTOR ASSEMBLY REMOVAL

(Sheath Heater and Convection Motor)

26

SHEATH HEATER:

1. Remove the two (2) screws holding the heater holder.

2. Remove the heater.

CONVECTION MOTOR:

1. Remove the nut, spring washer, and pipe (S) from the motor shaft.

2. Remove the convection fan, whasher and pipe (L) remove the shaft.

3. Place the convection fan motor assembly on the surface 1

Oven lamp socket

mounting bracket

Upper oven hinge

eater insulator (upper)

Convection motor

ermo cut-out

netron cooling duct (B)

Turntable coupting

Lower decorat

Figure 13. Oven Cavity Components

CONTROL PANEL AND COMPONENTS REMOVAL

\

The complete control panel should be removed for replacement of the components. To remove the control panel, refer to Figure 14 and proceed as follows:

1.

2.

3.

4.

Disconnect the oven power supply and remove the outer case. Discharge the high voltage capacitor. Disconnect the 6-pin connector of panel harness from

the main wire harness and release the wire holder. Disconnect the following two (2) wire leads from the control panel components.

4-l. Red wire lead to the vari-switch (COM). 4-2. Red and Orange wire leads to the cook switch.

5.

6.

7.

8.

9.

10.

1.1 .

Remove the four (4) screws holding the chassis support

to the back plate, cooling duct (A), waveguide and

back cabinet. Then remove the chassis support. Remove the single screw holding the upper sash assembly to the oven cavity . Remove the three (3) screws holding the lower sash assembly to the chassis base and remove the lower sash assembly.

Remove the two (2) screws holding the bottom edge of the control panel to the base cabinet. Remove the single (1) screw holding the control panel to the oven cavity front plate. Disconnect the white wire leads from the lower position of timer. Pull the control panel forward with thermostat tube and panel harness attached.

Replacement of individual component is as follows:

CONVECTION TIMER

1. Disconnect the wire leads from the timer.

2. Take off the timer knob from the timer shaft.

3. Remove the two (2) screws holding the mounting bracket to the back plate.

4. Take off the timer cam (A) and (B) from the timer shaft.

COOK SWITCH

1. Disconnect the wire leads from the switch.

2. Remove the two (2) screws holding the switch to the open device.

5. Remove the three (3) screws holding the timer to 3. Remove the switch. the mounting bracket.

-.

THERMOSTAT

1. Disconnect the wire leads from the thermostat.

2. Take off the temperature control knob and thermostat cam from the thermostat shaft.

3. Remove the two (2) screws holding-the thermostat to the mounting bracket.

4. Remove the then-no rod, refering to the convection motor assembly.

5. Thermostat is now free.

VARI-MOTOR ASSEMBLY

1. Disconnect the wire leads from the vari-motor assembly (vari-motor and vari-switch).

2. Take off the variable cooking control knob from the vari-motor shaft.

3. Remove the three (3) screws holding the vari-motor

assembly to the back plate.

4. Remove the vari-motor assembly.

MICROWAVE TIMER

1. Disconnect the wire leads from the timer.

2. Take off the timer knob from the timer shaft.

3. Remove the three (3) screws holding the timer to the

timer mounting plate.

CONVECTION LAMP, HEATER LAMP, MICROWAVE

LAMP

D

1. Disconnect the wire leads from the lamp.

2. Remove the single (1) screw holding the lamp to the back plate.

CAM SWITCH

1. Disconnect the wire leads from the switch.

2. Remove the two (2) screws holding the switch to the thermostat mounting bracket.

28

Panel

Convection lamp

indicator

plate

\

0

/’

.’

/

\

I

/-

I i

I I

i I I i I I I I

I I I

I

I\/

’ I!

‘i

0 i

‘1

tie k

i Vgriable

\

1 cooking

open button

1 “IW” Cook button 1 knob J

Microwave cook J indicator -,Y

/’

,/’

,

‘v’

A’

7

Control panel frame assembly

c-‘

\

Q ‘i&

‘t

‘% \

0b

0

\

Convection ti

Thermostat mounting bracket

Convection timer lever

(B)

Microwave timer

Microwave timer mounting plate

Control panel back plate

Open device assembly

I

:

/

Figure 14. Control Panel and Components

UPPER LATCH SWITCH AND

MONITOR SWITCH (United Kingdom and Australia) REMOVAL

1. Disconnect the oven from the power supply and remove the outer case.

2. Discharge the high voltage capacitor.

3. Remove the complete control panel assembly, referring to the Control Panel Assembly and Component Removal.

4.

Disconnect the wire leads from the switches.

5.

Remove the single (1) screw and washer holding the upper latch hook to the oven cavity front flange.

6. Remove the upper latch hook from the flange by moving it downward.

7. To remove the switch from the upper latch hook, push

outward the two (2) retaining tabs holding the switch in place.

LOWER LATCH SWITCH REMOVAL

1. Disconnect the oven from the power supply and remove the outer case.

2. Discharge the high voltage capacitor.

3. Remove the complete control panel assembly, referring to the Control Panel Assembly and Component Removal.

4. Disconnect the wire leads from the switches.

5. Remove the single (1) screw and washer holding the lower latch hook to the oven cavity front flange.

6.

Remove the lower latch hook from the flange by moving it downward.

7. Disconnect the wire leads from the switch.

8. Push outward the two (2) retaining tabs holding the switch in place.

9. The switch is now free.

--_ _ _..c _ _ _ -..<‘----1.c-. .

30

UPPER AND LOWER LATCH SWITCHES AND

MONITOR SWITCH (AUSTRALIA AND UNITED KINGDOM ONLY) ADJUSTMENT

In case the upper and lower latch switches do not operate properly due to a misadjustment, the following adjustment should be taken.

1. Loosen the single (1) screw holding the upper latch hook to the oven cavity front flange and the single (1) screw

holding the lower latch hook to the same flange.

2. With the door closed, adjust the lower latch hook by moving it back and forward, and then adjust the upper latch hook by moving it back and forward, or up and down. In and out play of the door allowed by the upper and lower latch hooks should be less than 0.5mrn. The vertical position of the upper latch hook should be placed where the upper latch switch has activated with the door closed. The vertical position of the lower latch hook is not able to adjust.

3. Secure the screws with washers firmly.

4. Now, make sure the upper latch switch operation. If the upper latch switch has not activated with the door

5

closed, loosen the single (1) screw holding the upper latch hook to the oven cavity front flange and adjust the upper latch hook position.

After the adjustment, make sure of the following points:

1. The in and out play of the door remains less than

0.5mm at latched position. First check the upper latch hook position, pushing and pulling the upper portion of door toward the oven face. Then check the lower latch hook position, pushing and pulling the lower portion of door toward the oven face. Both results (plays of the door) should be less than 0.5mm.

2. The upper and lower latch switches interrupt the circuit before the door can be opened.

3. The monitor switch contacts close when the door is opened.

4. Re-install the outer case and check for microwave leakage around the door with an approved microwave survey meter. (Refer to Microwave Measurement Procedure.)

p

Latch Head

i

Upper

Latch

Switch

latch

Head

Lower Latch

II Lower

Latch

Switch

Note: The monitor switch is provided on the Australia

and United Kingdom modeles only.

Figure 15. Latch Switches Adiustment

31

DOOR REPLACEMENT AND ADJUSTMENT

\

DOOR REPLACEMENT

1. Disconnect the oven power supply, remove the outer case and discharge the high voltage capacitor.

2. Remove the three (3) screws holding the lower sash assembly to the chassis base and remove the lower sash assembly.

3. Remove the three (3) screws holding the lower oven hinge to the chassis base. The door assembly is now free from the oven cavity.

4. On reinstalling new door assembly, secure the door assembly with the three (3) mounting screws to the

chassis base.

Make sure the door is parallel with the bottom line of

the oven face plate and the latch heads pass through the latch openings correctly.

Note:

After any service to the door, an approved microwave survey meter should be used to assure in compliance with proper microwave radiation standards. (Refer to Microwave Measurement Procedure.)

DOOR ADJUSTMENT When removing and/or loosening hinge such as in the case

of a door replacement, the following adjustment criteria are taken. Door is adjusted to meet the following three conditions by keeping screws of hinge loose.

1. Adjust door latch heads at a positien where they smoothly catch the latch hooks through the latch

openings.

Refer to upper and lower latch switches

adjustment.

2. Deviation of the door alignment from the horizontal line of the cativy face plate is to be less than l.Omm.

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 DECORATION SASH ASSEMBLY

\

*I I-W-C” rrA#?C

vu I cl-l LenalE

CABINET

HINGE SPACER (A)

HINGE SPACER (B)

/

,

/

//

4

i

@I

’ ‘8

4

l

QQ#

. . --

-<

v/ ‘\

DOOR LEVER

SASH ASSEMBLY

I

Figure 16. Door Replacement and Adjustment

32

i-

1.. - _ .---2.L----_-.

MICROWAVE MEASUREMENT

After the adjustment of the door interlock switches and door is 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 micro

wave oven.,

REQUIREMENT

The safety switch must prevent microwave radiation emission in excess of SmW/cm’ 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.

2.

3.

4.

5.

6.

Recommended instruments are: NARDA 8 100 NARDA 8200 HOLIDAY HI 1500 SIMPSON 38OM Place the turntable tray into the oven cavity. Place the load of 275 f lSm1 of water with the addition of one (1) percent by weight of sodium chloride in solution initialy at 20 *S°C in the centre of the oven tray. The water container should be a low form of 6OOml beaker with inside diameter of approx. 8&m 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 2Scm/sec.) along the gap. The microwave radiation emission should be meisured at any point of 5cm or more from the external surface of the oven.

33

r4

220V - 50Hz

CIRCUIT SUBJECT TO CHANGE WITHOUT NOTICE

DOOR CLOSED

COOK OFF CONDITION

WIRE COLOUR CODE SYMBOL

RED : RED (L)

WHT

: WHITE (N)

BRN ORG i E%E ;k;

BLU

: BLUE

G-Y ;

BLK

: BLACK ii;

GREEN AND YELLOW STRIPE

(S) : SILICON FIBER GLASS WIRE

HV : HIGH VOLTAGE WIRE

/18 : SECTIONAL AREA OF 0.8 mm2

: NO INDICATION SHOWS 0.3 mm2

0

: QUICK CONNECT TERMINAL 0 : SOLDER OR CLINCH TERMINAL 0

: CONNECTOR

Note: Germany model have not

C4 : line accross capacitor.

R2 : RESISTOF

CAPACITOR

WHTl1 I

NHT/l

;w3 :

.OWEF .ATCH ;WITCI

NHTIl

LK

WHT/18

, s- - “““iJ c,~~~~~~~~.3A

VHTll8

------a

A

D1

I

P

“NC ;

uo

I I

RED/l8

M, :FAN MOTOR

TC:MAGNETRON

THERM0 CUT-OUT

118

:UPPER

LATCH SWITCH

\T_SI :C_OtjVEC. TIMER

T

- -- ----- ---- -

IHT

Ls:MICRO IND.

ORG

ORG118

M4:VARI MOTOR

ORG

SWs:VARI

------- ----_____ SWITCH

LIMITING

INHT118IS)

RELAY

CAPACITOR

MG:MAGNETRON

0.6A

Figure 17. Schematic Diagram (Continental Europe Model)

34

-L

- , .

_-._. L

THERMOSTAT

r----

II r-El

BLU

I

TRANSFORMER

9

MAGNETRON

Main chassis

Figure 18. Pictorial Diagram (Continental Europe Model)

44

220V - 50Hz

CIRCUIT SUBJECT TO CHANGE WITHOUT NOTICE

DOOR CLOSED COOK OFF CONDITION

WIRE COLOUR CODE SYMBOL

RED

: RED

IL) WHT

: WHITE (N)

BRN

: BROWN

(L)

BLU

: BLUE

(N)

ORG

: ‘ORANGE (L)

BLK

: BLACK (N)

G-Y

: GREEN AND YELLOW STRIPE

6)

: SILICON FIBER GLASS WIRE

HV

: HIGH VOLTAGE WIRE

/18 : SECTIONAL AREA OF 0.8 mm2

: NO INDICATION SHOWS 0.3 mm2

0

: QUICK CONNECT TERMINAL

0 :

SOLDER OR CLINCH TERMINAL

0 : CONNECTOR

C*:LINE BYPAS

CAPACITOR

WHT/l

YHTll I

:w3 :

.OWEF .ATCH SWITCt

NHTIl

ILK

F: FUSE 250V Ml OA

NHTI18

I~TOR

“I yRED’18

TC:MAGNETRON

THERM0 CUT-OUT

I I

H:SHEATH HEATER

I

THERM0 R SWITCH

D:RECTIFER

Figure 19. Schematic Diagram (South Africa Model)

36

->. .._, _ _ 3...:- -3s. _

2

I

t

.c:

L

~

--

2 ’

i5

.c

1

i

J

rua

m

DIY0

ecu

~- ~--

gz

0

ITl

:

2

37

CIRCUIT SUBJECT TO CHANGE WITHOUT NOTICE

DOOR CLOSED

COOK OFF CONDITION

WIRE COLOUR CODE SYMBOL

RED : RED

(L) WHT

: WHITE (N)

BRN

ORG i ::%E ;k;

BLU

: BLUE

(N)

G-Y i

BLK

: BLACK (N)

GREEN AND YELLOW STRIPE

(S) : SILICON FIBER GLASS WIRE

HV : HIGH VOLTAGE WIRE

/18 : SECTIONAL AREA OF 0.8 mm2

: NO INDICATION SHOWS 0.3 mm2

0

: QUICK CONNECT TERMINAL

l

: SOLDER OR CLINCH TERMINAL

0

: CONNECTOR

RlHTll

bW3 :

.OWEF .ATCH ;WITCI

NHTIl

F,:FUSE

250V Ml OA

I I

I I I

VHi

I I

I

TC:MAGNETRON

THERM0 CUT-OI

BRN

H:SHEATH HEATER

SWITCH

ERM01 RED/18

’ ”

-NO

M3 : CONVEC.

FAN MOTOR NC

RED R

L:HEATER IND.

ED

I

MG:MAGNETRON

l2!!&! I

D:RECTIFE;

JT

Figure 2 1. Schematic Diagram (Australia Model)

38

--.-_ _w*- ---zL’-I-..- _ >

II

I

m

II

I I

m

-I

LAMP

COM

MONITOR

TRANSFORMER

A

UPPER LATCH SWITCH

COMW

/ Control Panel Ass’y

r”

MAGNETRON

RECTIFIER

Main chassis

Figure 22. Pictorial Diagram (Australia Model)

J-4

240V -5OHz

CIRCUIT SUBJECT TO CHANGE WITHOUT NOTICE

DOOR CLOSED COOK OFF CONDITION

WIRE COLOUR CODE SYMBOL

RED

: RED

IL)

WHT : WHITE (N)

BRN

: BROWN : ORANGE ;ki

BLU

: BLUE

ORG

BLK

: BLACK ii;

G-Y

: GREEN AND YELLOW STRIPE

(S) : SILICON FIBER GLASS WIRE HV : HIGH VOLTAGE WIRE /18 : SECTIONAL AREA OF 0.8 mm2

: NO INDICATION SHOWS 0.3 mm2

0 : QUICK CONNECT TERMINAL

l

: SOLDER OR CLINCH TERMINAL

0

: CONNECTOR

C*:LINE BYPAS

CAPACITOR

WHTll

WHTIl

SW3 : LOWEF

-AT0 jWlTC

WHT/l

ILK

WHTll8

r-&lb- ;

RED118

,

C4:LINE ACROSS

CAPACITOR

I I

WHTll8

1

8

Rz: RESISTOR

I

C3:LINE BYPASS

CAPACITOR

I

Ml :FAN MOTOR

I I

TC:MAGNETRON

THERM0 CUT-OUT

M,.TIIRNTAR’ = n”n-rnn

cd

NO

N‘l

6

Y

!

WHl

lwHTHzsH~ lBRN

FAN MOTOR

L:HEATER IND.

HT

E

WHT

I

-.

I I

WHTll8t.S)

I

TRANSFORMER

0.6A

Figure 23.

Schematic

Diagram (United Kingdom Model)

,

--- __-‘-

- - ---__

40

(zgqr--fr-- +d

j

A

4

I

UPPER

-

MICROWAVE LAMP

I A

’ VARI’ SWITCH

Vori-motor Ass’y

Ill

I

1

w e I3 7 k :

Ill I

WHT

=--I

I

,

MAGNETRON THERM0 CUT-OUT

A

I

CONVECTION MOTOR

POWER TRANSFORMER

I

/ Control Panel Ass’y

I

1

I

MAGNETRON

Jr /

Main chassis

---

HIGH VOLTAGE CAPACITOR

Figure 24. Pictorial Diagram (United Kingdom Model)

PACKING AND ACCESSORIES

TRAYHOLDER

---.. ,

(SPADF0390WREO)

BAKING TRAY

TRAY PAD (SPADPOl94WREO) TURNTABLE

--F

OPERATION MANUAL

COOK BOOK

A

w

1 I//’ (SSAKHQOO5YBEO)

POLYETHYLENE BAG

/mrl

CONVECTION \

w MICROWAVE \

TURNTABLE STYLOFORM (SPADP0252WREO)

PACKING CASE

/

(SPAKCI 283WREO:

Continental Europe)

Australia, United Kingdom,

BAKING RACK

,

South Africa /

ACCESSORIES FIXING METHOD

PARTS LIST

IMPORTANT: Parts marked with “ A

” (I-7) are important for maintaining the safety of the set. Be sure

to replace these parts with specified ones for maintaining the safety and performance of the set.

REF. NO.

PART NO. DESCRIPTION Q’TY:

CODE

ELECTRICAL PARTS

7

A “l- 1 A A *

A

A l-2 A

A. l- 3 A 1-4

A l-5 A l-6 A l-7 A l-8 A

l- 9

.A l-10

A

1-11 A l-12 A *l-13 A* A l-14

A l-15 A l-16 A 1-17

A

A l-18 A l-19

A

l-20

A

A l-21

A A A

l-22

A

l-23

A l-24 A

l-25

A A

l-26

A

l-27

FACC-OOlYWRKO

Mains supply cord @out

OFS-C0017WREO Fuse: T6.3A (Continental Europe)

QFSHDO019WREO QSW-M0107WREO QSW-M0108WREO

QSW-MOlOSWREO RLMPTO021WREO QS%LOO55WREO QSWTE0136WREO OSWTE0137WREO

and South Africa)

Fuse holder

Upper latch switch

Lower latch switch

Cook switch

Oven lamp Oven lamp socket Convection timer

Microwave timer

RLMPEOlOlWREO

Microwave lamp (green)

RTUM-0026WREO Magnetron thenno cut-out (Co

a- ntinental

Europe and United King'

RTUM-0017WREO Magnetron thenno cut-out

1

(Australia and South Africa)

FFS-i0003WRYO

Rectifier assembly _

1 ]

(Continental Euroue and United Kingdom) RN-DZ0046WREO 1 Rectifier (Australia and South Africa: RTRN-0190WREO

RTRN-019IWREO RTRN-0192WREO QTANN0013YBEO QSW-M

&

Power transformer (ZZOV, Continental

South Africa)

Cam switch

RHET-0042WREO Sheath heater (220V)

South Africa)

RR-CZ0032WREO

;‘; :

see page 5O;South Africa and Australia Models.

43

REF. NO.

PART NO.

DESCRIPTION

Q’TY CO’DE

2- 1 2- 2

FDAi-0185WRYO

GCtiVA0107WRTA GCGVA0107WRTB

2- 3

GCABU0095WRTA GCABU0096WRTA

2- 4

FFTASOO22WRYO

FFTAS0023WRYO

2- 4A

PPACUOOOlYBPO

2- 4B PSLDH0031WREO 2- 5

PPACU0002YBPO

2- 6

PCUSU0172YBPO

2- 7

Pcusuo337WRPo

2- 8 LANGQ0268WRWO

LANGQ0225WRWO

2- 9 LBSHC0032WREO

LSTPP0008YBFO LSTPP0009YBFO LANGQ0255WRWO LBNDK0035WRPO GCoVH0163WRWO GLEGP0009YBEO

LHLDK0005YBFA

PCUSG0154WRPO PSPAGQ002YBEO

PTUBU0024WREO QLUGEQ002YBEO

FCHSM0095WRYO FHNG-0067WRM0 XWHNZ60-10120

LANGQ0288WRWO

PSPAGQ021WRFO PCUSG0020YBFO

2-10 291 2-12 2-13 2-14 2-15 2-16 2-17 2-18

2-19

2-20 2-21 2-22 2-23 2-24 2-25 2-26

CABINET PARTS

Base cabinet Rear cabinet (Continental Europe) Rear cabinet

(United Kingdom,

Australia and South

Africa) Outer case cabinet (Continental Europe) Outer case cabinet

(United Kingdom,

Australia and South

Africa) Oven lamp access cover (Continental Europe) Oven lamp access cover

(United Kingdom,

Australia and South

Africa) Oven lamp cushion (A) Heat insulation tape Oven lamp cushion (B)

Shading cushion (A) Shading cushion (B)

Cord mounting bracket

(Continental Europe)

Cord mounting bracket

(United Kingdom,

Australia and South

Africa) Cord bushingCord anchorage (upper) Cord anchorage (lower)

-Capacitor mounting bracket Capacitor holder Turntable motor cover Foot Cord holder Transformer cushion Vibration proof cushion

Line cross capacitor protection tube

Line bypass capacitor lug terminal

Main chassis

Lower oven hinge Hinge spacer (A), l.Omm Turntable motor mounting bracket Turntable motor spacer Vibration proof rubber

1 1 1

1 1

-i-

1

1 1 1

1

-i1 1 1

1

4

2 2

1

2

-i--

1 1 1 1

1

4

AW AX Ax

3C BB

AH

AB AB AA

-AA

AA AD

AC

AB AC AC AC . AB AH

AB AB AA AA AC AB AH

AG AA AE AB ' AA

44

I. I

- ._.- ---‘>I j_- -

REF. NO.

PART NO. DESCRIPTION

O’TY

CODE

2-27

PTPEH0024WREO

2-28

PCAPH0023WREO

2-29

PCuSG0217WRPO

2-30 LANGH0091WRWO

3- 1

FPNLC0328WRYO

FPNLC0329WRYO

FPNLC0331WRYO

3- 1A

HDECA0471WREA HDEGA0472WREA HDECA0473WREA HiNDP005OWRFA HiNDPOO53WRFA HiNDP0054WRFA LCHSM0081WRWO LANGQ0286WRWO MCAMP0025WRFO MCAMP004lWRFO MLEVP0049WRFO

-MLEVP0050WRFO LANGF0268WRWO LANGQ0287WRWO MCAMP0042WRFO PZETE0004YBPO LANGQ0267WRWO FLEVF0069WRKO PZETE0004YBPO FKNBK0098WRKO

3- 1B 3- 1c 3- 1D 3- 2 3- 3 3- 4 3- 5 3- 6 3- 7 3- 8 3- 9 3-10 3-11

3-12

3-13 3-13A 3-14

FKNBK0108WRKO

3-15

FKNBK0099WRKO

3-16 JBTN-00.82WRFA

JBTN-0083WRMA

(United. Kingdom, Australia and South

Africa) Temperature control knob and Variable cooking control knob

(Continental Europe) Temperature control knob and Variable cooking control knob

(United Kingdom, Australia and South

Africa)

Cook button and open button

(Continental Europe)

.Cook button and Open button

(United Kingdom,

Australia and South

Africa)

3-17 PTUBG0017WREO

Thermostat wire protection tube

FKNBK0109WRKO

Water proof tape Cabinet cap (Continental Europe)

Cabinet cushion

(United Kingdom, Australia and South

Africa)

Turntable motor supporting plate

CONTROL PANEL *PARTS

Control panel frame assembly

(Continental Europe) Control panel frame assembly

(United Kingdom and South Africa) Control panel frame assembly

(Australia) Panel plate (Continental Europe) Panel plate (United Kingdom) Panel plate (Australia and South Africa Convection cook indicator (orange) Microwave cook indicator (green) Heater indicator (red) Control panel back plate Convection timer mounting bracket Convection timer cam (A) Convection timer cam (B) Convection timer lever (A) Convection timer lever (B) Timer lever (A) adjusting plate Thermostat mounting bracket Thermostat cam Cam switch insulator

Microwave timer mounting plate

Open device assembly Cook switch insulator (same as 3-11) Convection timer knob and Microwave timer knob (Continental.Europe) Convection timer knob and Microwave timer knob

1 AA

2

AB

1

AD

1

AD

1

1 1 1 1 1

1 1 1

1

1 1

1

1 1 1 1 1 1

2

1

AY

AT AT AT AA AA AA AR AF AD AC AD AC AA

AD AC AA AC AU RA AF

AF

AE

45

REF. NO. PART NO.

DESCRIPTION

Q’TY CbDE

OVEN PARTS

4- 1

FOVN-0183WRYO

Oven cavity

1

BS

4- 2

FCPL-0023wRKO

Turntable coupling

1

AW

4- 3 FRi5LM002OWRYO

Turntable roller

3

AG

4- 4 PcOvPO255wREO

Waveguide cover

1

AK

4- 5 FTNT-0020WRHA

Turntable tray

1

AW

4- 6

PGLSP0123wREO

Oven lamp glass

1

AK

4- 7

PDUC-0340WRW0

Steam duct

1

AP

4- 8

PcusuO384wRPO

Steam duct cushion

1

AB

4- 9

FFANJ0017WRKO

Fan blade assembly

1

AE

4- 9A

MSPRP0038YBEO Fan retainer clip

1 AB

4-10

PDUC-0306WRFO

Magnetron cooling duct (A)

1 AG

4-11

PDuC-0308WRFO Magnetron cooling duct (B)

1 AA

4-12 LANGF0280WRWO

Chassis support

1

AE

4-13

LANGK0141WRFO

Upper latch hook

1

AF

4-14

LANGK0142WRFO

Lower latch hook

1

AE

4-15

FDECC0039WRKO Upper decoration sash assembly

1

AV

(Continental Europe)

FDECC0040WRKO

Upper decoration sash assembly

1 AV

(United Kingdom,

Australia and South

Africa)

4-15A LANGT0269WRWO

Upper sash mounting bracket

1 - AE

4-16 FDECC0041WRKO Lower decoration sash assembly

1

AV

(Continental Europe)

FDECCOO42WRK0 Lower decoration sash assembly

1

AU

(United Kingdom, Australia and South

Africa)

4-16A LANGT0270WRWO Lower sash mounting bracket

1

AF

4-17

FHNG-0066WRM0

Upper oven hinge

1 AE

4-18

FANGT0082WRYO

Oven lamp glass flange

1

AM

4-19 LANGQ0289WRWO Oven lamp socket mounting bracket

1

AE

4-20

FANGK0115WRWO

Damper mounting bracket

1

AH

4-21

FFTA-0002WRWO

Damper cover

1 AG

4-22 MSPRD0043WREO

Damper spring

1

AA

4-23 NSFTT0058WRMO

Damper shaft

1

AA

4-24

PPACGOllOWRFO

Damper packing

1

AK

4-25 FDUC-0154WRTA

Convection fan duct

1

AY

4-26 NFANM0030WRWO

Auxiliary fan

1

AH

4-27

FFANM0024WRWO

Convection fan

1 AS

4-28 LANGROllGWRWO

Convection motor mounting bracket 1 AE

4-.29

PGiSH0038WREO

.Convection heater insulator (lower)

2

AG

4-30

PGiSH0039WREO

Convection heater insulator (upper)

2

AG

4-31

PFPF-0045WREO

Thermal protection sheet (A)

1 AL

4-32

PFPF-0046WREO

Thermal protection sheet (B)

1

AK

4-33

PFPF-0047WREO

Thermal protection sheet (C)

1

AS

4-34

PSLDH0032WRWO

Thermal protection cover (A)

1

AP

4-35

PSLDH0033WRWO

Thermal protection cover (B)

1

AK

4-36

PSLDH0035WRWO

Thermal protection cover (C)

1

AQ

4-37

PSLDH0034WRWO

Heater sheild plate

1

AL

4-38

FRDD-0019WRYO

Damper joint rod

1 AE

4-39

PPACGOlllWREO

Oil packing

1 AF

4-40 PDUC-0339WRW0

Damper guide

1

AC

4-41 Pcusuo4ooWRPo

Hinge cushion

1

lu

4-42

XWHNZ60-10120

Hinge spacer (A),

same as Ref.No.2-23

1

AA.

4-43

XWHNZGO-15120

Hinge spacer (B), 1.5mm

1

AA

46

;

’ ,,_ -I

* ’ _.

&-A ’

-LL~-~~i~u=13rl;~ .L

-- _ _

REF. 1\10.

PART NO. DESCRIPTION

Q’TY

CODE

* 4-44

PPiPU0019WREO Pipe (L)

4-45

PPiPUOO2OWREO Pipe (S)

4-46

PSPA-0099WREO

Insulation spacer

4-47

~cusuO408wRI'O Water proof cushion (A)

4-48

Pcusu0407wRP0

Water proo'f cushion (B)

4-49

MLEVF0124WREO Monitor switch lever

(United Kingdom and Australia)

*: See page 50,South Africa and Australia Models

DOOR PARTS

1

AE

1

AD

1

AP

1

AA

1

AA -

1

AC

5 DDORF0257WRKO

Dear assembly, complete

1

BV

(Continental Europe except Germany) DDfiRFO259WRKO Door assembly, complete (Germany) 1 BV DDBRF0258WRKO

Door assembly, complete (United Kingdom) 1 BV

DD~RF0260WRKO Door assembly, complete 1

BV

(Australia and South Africa)

5- 1

FANGKOO99WRYO

Latch plate

1 AG

5- 2

FLEVF0068WRYO

Joint lever

1 AD

5- 3

LSTPP0035WRFO

Upper latch head

1

AC

5- 4

LSTPP0036WRFO

Lower latch head

1

AC

5- 5

MLEVPO03lWRFO

Door lever

1

AC

5- 6 MSPRT0059WREO

Latch spring

1

AC

5- 7 FDoRF0131WRTO

Door panel

1

BB

5- 8

GCOVAOlOOWRFA

Latch cover

1 AK

5- 9

GWAKMOO26WRTA

Door glass frame (Continental

Europe)

1 AU

GWAKMOO29WRTA Door glass frame 1

AU

(United Kingdom, Australia and South

Africa)

5-10

HPNC-OlOOWRTA

Door screen

' -1

AW

5-11

PCoVP0242WRFA

Choke cover

1 AT

5-12

PSLDMO274WREO

Ferrite (A)

4 AC

5-13

PGLSPOO97WREO

Inside door glass

1

AP

5-14 PGLSP0119WREA

Outside door glass

1

AY

(Continental Europe except Germany)

PGLSP0121WREA Outside door glass (Germany) 1

AY PGLSP0120WREA Outside door glass (United Kingdom) 1 AY PGLSPO122WREA Outside door glass 1 AZ

(Australia and South Africa)

5-15 PPACGOlOlWREA

Outside glass packing

5

AA

5-16 PPACG0107WREA

Inside glass seal packing 1

AG

5-17

PSLDM0293WRTO

Seal plate

1

AT

5-18 PSLDM0292WREA

Ferrite

1

AW

5-19 PCUSG0212WRPO

Door cushion L

2

AB

5-20 PCUSG0213WRPO

Door cushion S

2

AA

MISCELLANEOUS

6- 1 PSRAHOO25WRHA

Baking tray

1

AU

6- 2 JHNDM0017WRMO

Carrying handle

1

AH

6- 3 FAMi-0026WRK0

Broiling trivet

H:50mm

1

AS

6- 4

FAMi-0027WRKO

Baking rack

H:llOmm

1

AT

47

REF. NO.

PART NO.

DliSCRlPTlON

+

Q’TY

CODE

6-17

6-18 6-19 6-20 6-21 6-22 6-23

6-24

6-25

6-26

LBNDCQ004CBEO

LHLDWQ003YBEO LHLDWQ004YBEO LHLDWQOO5YBEO LHLDW0038WREO TLABS0023WRRO PTUBG0021WREO TCADCO194WRRO

TCADC0195WRR0 TCADC0141WRRO

TCADC0131WRRO TCADC0189WRRO

TCADC0191WRRO TCADCO190WRRO TCADC0192WRRO

TiNS-0046WRRO

TiNSG0017WRRO

TiNSE0202WRRO

(United

Kingdom and Australia)

Wire holder, WH-1

5

(Continental Europe, and United Kingdom)

Wire holder, WH-1 (Australia and South

3

Africa)

Wire holder (Puree Lock "MI')

1

Wire holder (Puree Lock "L").

2

Wire holder (Puree Lock "EXL")

1

Wire holder (Puree lock "T")

1

Fuse label (Continental Europe)

1 Protection tube (South Africa) Microwave cook book

(Continental Europe except Germany) Microwave cook book (Germany) Microwave cook book (United Kingdom

and South Africa)

Microwave cook book (Australia)

Convection menu guide

(Continental Europe except Germany) Convection menu guide (Germany) Convection menu guide (United Kingdom) Convection menu guide

(Australia and South Africa) Operation manual

(Continental Europe except Germany) Operation manual (Germany) Operation manual

(United Kingdom, Australia and

South Africa)

1 1

1

1 1

1 1 1

1

1 1

AA

AA AA AA

AB

AA

AB

AZ

AU

AT

AK AM

SCREWS, NUTS, WASHERS AND RING

\

7- 1 LX-BZ0055YBEO

Screw; waveguide cover

(left side)

mtg

3

AA

7-

2 LX-BZ0061YBEO

Screw;

turntable roller

mtg

6

AA

7-

3 LX-BZ0127WREO

Screw;

convection timer

lever

(A)

mtg

1

AA

7- 4 LX-BZ0143WREO

Screw; latch

cover mtg

3

AA

7- 5 LX-BZ0158WREO

Screw; oven lamp access

cover

mtg

1

AA-

(Continental Europe)

48

. r

L

./.- .-

-_. --.-~-'-L.---i --a. I

REF. NO.

PART NO.

DESCRIPTION

Q7Y

CODE

7- 5

LX-BZ0155WRE0

7- 6

LX-BZ0170WRE0

* 7: jl

LX-BZ0177WREO

7- 8

LX-BZ0184WREO

7 - 9:.

LX-czoo33wREo

7-10

LX-CZ0034WRTA

LX-CZ0040WRTA

7-11

LX-czoo35wREo

7-12

LX-czoo42WREo

7-13

XBPSD30P06KOO

7-14

XBPSD30P15KOO

7-15

XBPSD30P16KOO

7-16

XBPSD4OPO6KOO

7-17 7-18

7-19

7-20 7-21 7,-22

XBPSD30P12KOO

mPsD40P32000

XBPSDGOP14KSO XBPUW30P10000 XBTUW40P06000 XCBSB45P12000

7-23

XCPSD30P08KOO

7-24

XCPSD30P16000

7-25

xcPSD40P27000

7-26

XCPSD50PlGKSO

7-27

XCTSB40P12000

7-28

XCTSD40P16000

7-29

XFTSD30P06000

7-30

XFTSD40P12000

7-31

LX-NZ0029YBEO

7-32 LX-NZO031YBEO 7-33

LX-NZ0048wREO

* 7-34

LX-NZ0050WREO

7-35

LX-WZ0034WREO

7-36 LX-wzoo35WREo

xcBsC45P12000

Screw; oven lamp access cover mtg

(United Kingdom,

Australia and South

Africa) Screw; convection timer lever (B) mtg Screw;

cord mounting bracket mtg

Screw;

turntable motor mtg

Screw; seal plate mtg

Screw; door glass frame (upper) mtg

(Continental Europe)

Screw; door glass frame (upper) mtg

(United Kingdom,

Australia and South

Africa)

Screw;'upper decoration sash and lower

decoration sash mtg

Screw; ferrite.mtg Screw;

convection timer mtg

Screw;

cook switch mtg Screw; cam switch mtg Screw;

turntable coupling and

thermostat mtg Screw; fuse holder mtg Screw;

convection motor mtg Screw;

power transformer mtg

Screw;

heater insulator (lower) mtg Screw; waveguide cover (right side) mtg Screw;

door glass frame (lower) mtg

(Continental Europe)

Screw; door glass frame (lower) mtg

(United Kingdom,

Australia and South

Africa)

Screw;

connection lamp, heater lamp,

microwave lamp and microwave

timer mtg Screw; cord connector mtg Screw;

cord anchorage (upper) mtg Screw;

upper oven hinge and

lower oven hinge.mtg Screw; outer case m.tg Screw;

cord holder mtg

Screw;

therm0 cut-out mtg

Screw;

rectifier, capacitor mounting

bracket,

turntable motor cover

and cooling duct (B) mtg Nut; convection motor, steam duct,

thermal protection cover (B),

oven lamp glass flange, oven lamp

socket mounting bracket, damper

mounting bracket and heater mtg Nut; lamp access cover mtg Nut; magnetron mtg Nut; convection fan mtg Washer (square); outer case mtg Washer (outer tooth); upper and lower

latch hook mtg

1

1 1 1

16

3

5

8

3

2

5

1

2

2 3 3

3

6

2 2

6

11

2 2

4

13

1

4

1

2 2

AA

AA AA AA

AA

AA AA AA

AA. AA

AA AA AA

AA

,

AA

AA AA

AA

AA AA

AA AA AA

49

REF. NO.

PART NO.

DESCRIPTION

Q’TY

CODE

7-37

7-38

7-39 7-40 7-41 7-42

7-43 7-44

XWHSD40-08120

XWwSD60-08000

xW'HNZ30-05060

xWHuw30-05000 XWHUW45-08120 XWSSD40-10000

xwsuw40-06000 XWSVD40-04000

I

7-45

XREUW40-06000

7-46

LX-BZ0141WREO

7-47

XWHSD50-05000

Washer;

sheath heater and turntable

6

motor mtg

Washer; (outer tooth); power transformer

1

mtg

Washer; lamp access cover mtg

2

Washer;

heater insulator (lower) mtg

2

Washer;

auxiliary fan mtg

2

Washer (spring); earthing, sheath

4

heater and rectifier mtg

Washer (spring);

convection fan mtg

1

Washer (outer tooth); capacitor mounting 12

bracket,

oven cavity, control

panel back plate, cord mounting

bracket,main chassis, turntable

. motor cover,

damper joint rod

and cooling duct (B) mtg

E-ring (4.Omm);

auxiliary fan mtg

1

Screw; monitor switch lever mtg

1

(United Kingdom and Australia)

Washer;

monitor switch lever

(United Kingdom and Australia)

AA

AA AA AA AA

AA AA

AA

*: see page 50,

South Africa and Australia Models

Modification Information (Australia and South Africa)

Change of motor shaft

The initial 1st. lot (Ser. Nos.

- 1OSXXXXX) are mounted as illustrated in Figure A.

For the 2nd. lot and other lots (Ser. Nos. 106XXXXX -

), the motor shaft length is modified short. (Figure B)

Service Information

Repair the convection motor in the following procedure, if defective, upon service call from users. 0 Check Ser. No.

For Ser. No.

- lOXXXXX, replace convection motor, pipe (L) and special nut altogether.

For Ser. No. 106XXXXX and following Nos., the related parts are replaceable according to the parts list.

Nut Washer (spring)

r%-

Special Nut

Convection Fan

Auxiliary Fan

CONVECTION MOTOR

Figure A.

Figure B.

50

L

-.

- ~.A-‘-- --L-i-. . . _.

CABINET PARTS

L --------------------------------e-J

52

-. F . .

L

. .

-z’ .A- . ..a_ -... . A

_-’ - 1 .-. ._.

53

DOOR PARTS

MISCELLANEOUS

0

6-3

Q

6-2

6-4

P

I

b- fr SL_ .jlwe*

54

Q

6-5

0

6-l I

I

(South Africa)

(Continental Europe)

(United Kingdom)

0

6-12

Q

6-8

0

6-23

I

Q

6-9

6-10

P

n II

t

II

1

-

Q

0

6-13

Q

6-14

0

6-19

6 6

Q

6-21

I

0

6-15

FIXING PROCEDURE OF CORD ANCHORAGE

\

General :

Content:

As for the above subject, sometime it may cause to have wrong fixing about two pieces of cord anchorage unit. But this cord anchorage is an important part for the safety, therefore it must be fixed correctly and firmly.

1. The cord anchorage which is used to secure the mains supply cord can be futedin two different ways.

2. If you fuc them as shown in Figure 2, the mains supply cord will not be secured firmly.

3. Therefore, make sure to fuc them as shown in figure 1.

,3 mm

MAINS

SUPPLY co?D

(UPPER) LSTPPOOO8YBFO

Figure 1. Correct Fixing

Figure 2. Wrong Fixing

56

:

s?C;h~=-~~ -.-.A _ -a. i

‘81 @ SHARP CORP. (7N2.15E) Printed in Japan

.

---