Sharp R-2380 Service Manual

SHARP SERVICE MANUAL

S5001 R2380J//

COMMERCIAL

MICROWAVE OVEN

MODEL

R-2380

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

condition and only manufacturer original spare parts must be used.

TABLE OF CONTENTS

Page

CAUTION, MICROWAVE RADIATION

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

1

GENERAL IMPORTANT

INFORMATION ......................................................................................................

1

WARNING

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

1

PRODUCT SPECIFICATIONS

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

2

APPEARANCE VIEW ........................................................................................................................................

3

OPERATING SEQUENCE

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

4

FUNCTION OF IMPORTANT

COMPONENTS ..............................................................................................

7

COUNTER CHECK ............................................................................................................................................

9

RESETTING THE

COUNTER MEMORIES ..................................................................................................

IO

SERVICING .....................................................................................................................................................

15

TEST PROCEDURE

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

20

TOUCH CONTROL

PANEL ...........................................................................................................................

28

COMPONENT REPLACEMENT AND

ADJUSTMENT PROCEDURE .....................................................

39

MICROWAVE MEASUREMENT

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

46

TEST DATA AT A

GLANCE ....................................................... . ..................................................................

47

TEST POINT ON CONTROL

UNIT ...............................................................................................................

47

WIRING DIAGRAM

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

48

PICTORIAL DIAGRAM

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

-. ............................................. 49

CONTROL PANEL

CIRCUIT .........................................................................................................................

50

PRINTED WIRING

BOARD

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

51

SPARE PARTS LIST ......................................................................................................................................

52

SHARP CORPORATION

R-2380

R-2380

SERVICE MANUAL

SHARP

COMMERCIAL

MICROWAVE OVEN

R-2380

FOREWORD

This Manual has been prepared to provide Sharp Corp. Service

Personnel with Operation and Service Information for the

SHARP MICROWAVE OVEN R-2380.

It is recommended that service personnel carefully study the
entire text of this manual so they will be qualified to render
satisfactory customer service.

Check interlock switches and door seal carefully. Special at­tention should be given to avoid electrical shock and micro­wave radiation hazard.

CAUTION

MICROWAVE RADIATION

Personnel should not be exposed to the microwave energy
which may radiate from the magnetron or other microwave
generating devices if it is improperly used or connected. All
input and output microwave connections, waveguides, flanges

and gaskets must be secured. Never operate the device without
a microwave energy absorbing load attached. Never look into
an open waveguide or antenna while the device is energized.

Note( Parts List)

: The parts marked rr*rr are used in voltage

more than 250V.

SHARP CORPORATION

OSAKA, JAPAN

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: PRODUCT SPECIFICATIONS

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“-‘: OPERATING SEQUENCE

: .; FUNCTION OF IMPORTANT ’

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‘:‘ TEST PROCEDURE

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,;I+ PRINTED WIRING BOARD

- PARTS LIST

PRODUCT DESCRIPTION

SPECIFICATION

ITEM

Power Requirements

--

Power Consumption
Power Output

Outside Dimensions

Cooking Cavity Dimensions

Control Complement

Set Weight

DESCRIPTION

240 Volts
50 Hertz
Single phase, 3 wire earthed

Microwave cooking

2.4 kW Approx. 10.0 A

1300 watts nominal of RF microwave energy (2 litter water load)
Operating frequency of 2450MHz

Width 510 mm

Height 335 mm including foot
Depth 415 mm

Width 330 mm

Height 210 mm
Depth 310 mm

Touch Control System

Microwave power level

100% 90% 80% 70% 60% 50%

40% 30% 20% 10% 0%
MANUAL TIME SET key
MICROWAVE POWER SETTING key
STOP/CLEAR key
START key
DOUBLE QUANTITY key

/ EXPRESS DEFROST key

SET key
CHECK key

VOLUME key
Approx. 30.0 kg

Your oven can be programmed a series of up to 2 cooking stages.

r The combination of microwave power and cooking time that can be input is as follows.

Cooking ‘Sequence

2 stage
cooking

2 stage
cooking

2 stage
cooking

1 •j first stage

q second stage

1 30

2 stage

q first stage 15

cooking

q second stage 15

I

The combination of cookinq time & microwave power

I

10 15 20’ 25 30 35 40 45 50 55 $0

n.

2

R -2380

GENERAL INFORMATION

WARNING

THIS APPLIANCE MUST BE EARTHED

IMPORTANT

THE WIRES IN THIS MAINS LEAD ARE COLOURED IN ACCORDANCE WITH THE FOLLOWING CODE:

GREEN-AND-YELLOW

: EARTH

BLUE

: NEUTRAL

BROWN

: LIVE

APPEARANCE VIEW

L*+

YLECTATME enter 11”w
Fa “Ma lOox sELECTwowER

e&ynbn la wxnlws

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j 6 1

I

I 7 1

I

! 9 I

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/

iol

@j-j SELECTATIME 11 STOPKLEAR pj$
@$-fGq,,,b

8--Ts;f7 CHECK pLGq-@

7

1. Door handle.

2. Access cover for oven lamp
replacement.

3. Oven lamp.

4. Ventilation openings.

5. Waveguide cover.

6. Touch control panel.

7. Safety door latches.

8. Air intake opening and filter.

9. Ceramic shelf.

IO. Hinges.

11. See-through door.

12. Power supply cord.

13. Mounting plate.

14. TIME display: Lighted digital display
up to 60 minutes.00 seconds.

15. Cooking indicator.

16. SELECTAPOWER display;
percentage of microwave power is
indicated.

17. DOUBLE QUANTITY pad.

18. EXPRESS DEFROST pad.

19. Ten NUMBER pads for time and
memory programming.

20. SELECTATIME pad.

21. SELECTAPOWER pad for setting
variable power level.

22. STOP/CLEAR pad; touch to stop
operation of oven and clear
remaining cooking time.

23. START pad. Touch to operate

oven afler door is closed and time
is set.

24. SET pad for setting memory.

25. CHECK pad for checking memory.

26. VOLUME pad for setting sound
level.

I

3

OPERATING SEQUENCE

OFF CONDITION

4.

Closing the door activates all door interlock switches
(Upper latch switch, lower latch switch and stop
switch)

IMPORTANT

5.

When the oven door is closed, the monitor switch
contacts COM-NC must be open.
When the microwave oven is pluged in a wall outlet

(240 volts, 50Hz), the line voltage is supplied to the

point A5+ A7 in the control panel.

Figure O-1 on page 48

The display shows 1-I.
NOTE:

When the door is opened or after cooking,
oven lamp and blower motor operate for 1
minute.

MICROWAVE COOKING CONDITION

Touch SELECTATIME key and enter a desired cooking
time with the touching NUMBER key. And then touch
START key.

Function sequence Figure O-2 on page 48

CONNECTED COMPONENTS
Oven lamp / Blower motor
Power transformer Tl
Power transformer T2

RELAY

RYI
RY3
RY4

6.

s-l-en the oven door is opened during or after the

1. The line voltage is supplied to the primary winding
of the power transformer. The voltage is converted

to about 3.3 volts A.C. output on the filament
winding and high voltage of approximately 2000
volts A.C. on the secondary winding.

2. The filament winding voltage (3.3 volts) heats the
magnetron filament and the high voltage (2000
volts) is sent to the voltagedoubling circuit, where
it is doubled to negative voltage of approximately
4000 volts D.C..

6-2.

3. The 2450 MHz microwave energy produced in the
magnetron generates a wave length of 12.24 cm.
This energy is channeled through the waveguide
(transport channel) into the oven cavity, where the
food is placed to be cooked.

6-3.

4

When the cooking time is up, a signal tone is heard
and the relays RY3+ RY4 go back to their home
position.

The circuits to the power transformers

Tl + T2 are cut off.
The relay RY1 remains and oven lamp and blower
motor operate for 1 minute.
When the door is opened during a cook cycle, the
switches come to the following condition,

CONDITION

DURING DOOR OPEN

SWITCH CONTACT COOKING (NO COOKING)
Upper latch switch COM-NO

Closed

ODen

Monitor switch

COM-NC

Open

Closed

Lower latch switch

COM-NO

Closed Open

Stop switch

COM-NO

Closed Open

The circuits to the power transformers Tl + T2 are
cut off when the upper latch, lower latch and stop
switches SW1 + SW2+ SW4 are made open. The
blower motor .B& and oven lamp remain on even if

the oven door is opened after the cooking cycle has
been interrupted, because the relay RY1 stays
closed. Shown in the display is the remaining time,
but the program is cancelled if the oven is not
started within 3 minutes.

MONITOR SWITCH CIRCUIT

The monitor switch SW3 is mechanically controlled
by oven door, and monitors the operation of the
upper latch switch sw1 and lower latch switch
SW2

cycle of a cooking program, the upper latch, lower

latch and stop switches SW1 + SW2+ SW4 must
open their contacts first. After that the contacts

(COM- NC) of the monitor switch SW3 can be
closed.
When the oven door is closed, the contacts

(COM-NC) of the monitor switch SW3 must be
opened first. After that the contacts (COM - NO)of
the upper latch. lower latch and stop switches
SW1 + SW2+ SW4 must be closed.
When the oven door is opened and the contacts
of the upper latch switch SW/J and lower latch
switch SW2 remain closed, the fuse F3 BSF 13A
will blow, because the monitor switch is closed
and a short circuit is caused.

R-2380

TWO MAGNETRON OPERATION SYSTEM

Two magnetrons MGl + MG2 are equipped in order to get higher microwave power output.
The primary windings of the power transformers Tl + T2 are connected so that each magnetron can be oscillated
alternatively according to the frequency of the power supply. Refer to the Figure 1 and 2.

\

T2: POWER TRANSFORMER

r-----7

Tl: POWER TRANSFORMER

r---+J=f---

0: H. V. RECTIFIER

C2: tZ~;P&ITOR

AC2:OO”

ASYMMETRIC
RECTIFIER

U

0: H.V. RECTIFIER

Cl: CAPACITOR

0.87pf
AC2IOOV

.

Figure 1. High Voltage Circuit

COMMERCIAL
FREQUENCY

150Hz)

POWER OUTPUT

BY MAGNETRON 1

Y

A Ezl

OPERATION OF

I

MAGNETRON

POWER OUTPUT
BY MAGNETRON 2

Figure 2. Operation of Magnetron

5

-

MICROWAVE VARIABLE COOKING

When the microwave oven is preset for variable cooking power, the line voltage is supplied to the power transformers
Tl + T2 intermittently within a 32 second time base through the contacts of the relays RY3+ RY4.
The following levels of microwaves power are given.

Number key

Number key 9

Number key 8

Number key 7

Number key 6

Number key 5

Number key 4

Number key 3

Number key 2

Number key 1

Number key 0

30 set ON

26 set ON

24 set ON

22 set ON

18 set ON

16 set ON

12 set ON

1

8 set ON

6 set ON

0 set ON

NOTE: The ON/OFF time ratio does not exactly correspond to the percentage of microwave power, because

aoprox. 2 seconds are needed for heating up the magnetron filament.

6

FUNCTION OF IMPORTANT COMPONENTS

UPPER LATCH SWITCH SW1
LOWER LATCH SWITCH SW2
STOP SWITCH SW4
SW1 + SW2 + SW4

1. When the oven door is
COM-NO must be closed.

2. When the oven door is
COM-NO must be opened.

MONITOR SWITCH SW3

closed, the contacts

opened, the contacts

The monitor switch is activated (the contacts opened)
by the upper latch head and switch lever A while the
door is closed. The switch is intended to render the
oven inoperative by means of blowing the fuse B BSF
13A when the contacts of the upper latch switch sw1
and lower latch switch SW2 fail to open when the door
is opened.

Function

1. When the door is opened, the monitor switch SW/J

contacts close (to the ON condition) due to their
being normally closed. At this time the upper latch
switch $IV’J and lower latch switch SW2 are in the
OFF condition (contacts open) due to their being
normally open contact switches.

2. As the door goes to a closed position, the monitor
switch contacts are opened and upper latch switch

sw1 and lower latch switch SWJ contacts are
closed (On opening the door, each of these
switches operate inversely.)

3. If the door is opened and the upper latch switch

SW’J and lower latch switch SW2 contacts fail to

open, the fuse FJ BSF 13A blows simultaneously

with closing of the monitor switch contacts.

CAUTION: BEFORE REPLACING A BLOWN FUSE

FJ BSF 13A TEST THE UPPER LATCH

SWITCH,

LOWER LATCH SWITCH,

MONITOR SWITCH AND MONITOR RE-

SISTOR FOR PROPER OPERATION.

(REFER TO CHAPTER “TEST PROCE­DURE”).

MONITOR RESISTOR

The monitor resistor prevents the fuse FJ BSF 13A
bursting when the fuse FJ BSF 13A blows due to the
operation of the monitor switch.

ASYMMETRIC RECTIFIER

The asymmetric rectifier is solid state device that pre­vents current flow is both directions. And it prevents
the temperature rise of the power transformer by
blowing the fuse M8A Fl or F2 when the high voltage
rectifier is shorted.

The rated peak reverse voltage of Dl of the asymmetric
rectifier is 6 KV The rated peak reverse voltage of D2
of the asymmetric rectifier is 1.7 KV. Dl and D2 of the
asymmetric rectifier or high voltage rectifier are shorted
when the each peak reverse voltage goes beyond the
each rated peak reverse voltage. (The process of the
blowing the fuse M8A Fl or F2)

1.

2.

3.

4.

5.

6.

7.

The high voltage rectifier is shorted by any causes
when microwave cooking.
The peak reverse voltage of D2 of the rectifier goes
beyond the rated peak reverse voltage 1.7 KV in the
voltage doubler circuit.

D2 of the rectifier is shorted.
The large electric currents flow through the high
voltage winding of the power transformer.
The large electric currents beyond 8A flow through
the primary widing of the power transformer.
The fuse Fl or F2 blows by the large electric cur­rents.
The power supplying to the power transformer is
cut off. And the control panel will display
( EE-1 ), ( EE-2 ), ( EE-3 ).

FUSE BSF 13A 250V F3

1. If the wire harness or electrical components are
short-circuited, this fuse blows to prevent an elec-

tric shock or fire hazzard.

2. The fuse also blows when upper latch switch sw1
and lower latch switch SW2 remain closed with the

oven door open and when the monitor switch SW3
closes.

THERMISTOR

The thermistor is a negative temperature coefficient
type. The temperature in the exhaust duct is detected
through the resistance of the thermistor.

If the temperature rises about 12O”C, the control panel
will display ( EE - 7 ) and the oven will stop to avoid
overheating an catching fire.

7

: -2380

BLOWER MOTOR BM

The blower motor drives a blade which draws external

cool air. This cool air is directed through the air vanes
surrounding the magnetrons and cools the magnetrons.
This air is channeled through the oven cavity to remove
steam and vapors given off from the heating foods. It

is then exhausted through the exhausing air vents at

the oven cavity.

MG THERMAL CUT-OUTS 145°C TCI, TC2

These thermal cut-outs protect the magnetrons against

overheat.

If their temperature go up higher than

145°C because the blower motor is interrupted, the
ventilation openings are blocked, the thermal cut-outs
TCl + TC2 will open and the line voltages to the

power transformer Tl + T2 will be cut off and the op­erations of the magnetrons MGI + MG2 will be
stopped.
The thermal cut-outs TCl + TC2 will close their con­tacts again when their temperatures go down lower
than - 20°C.

BLOWER MOTOR THERMAL CUT-OUT 115°C

TC3

This thermal cut-out protect the blower motor against

overheat.

If its temperature goes up higher than

115°C because the blower motor is locked or the ven-

tilation openings are blocked, the contacts of the ther­mal cut-out TC3 will open and the line voltage to the
control unit will be cut off and the operation of the
oven will be stopped.
The thermal cut-out TC3 will be close its contacts
again when its temperature goes down lower than

- 20°C.

OVEN TEMP. FUSE 150°C TF

This temp. fuse protects the oven against overheat. If
the temperature goes up higher than 150°C because
the food catches fire, the contacts of temp. fuse E will
open and the line voltage to the control unit will be cut
off and the operation of the oven will be stopped. The
defective temp. fuse must be replaced with a new rated
one.

8

DOOR OPEN MECHANISM

1. The door release lever is pulled.

2. The upper latch head is lifted up by the linked door
release lever.

3. The latch lever is lifted up by the door release lever.

4. The joint lever is lifted up by the latch lever.

5. The lower latch head is lifted up by the joint lever.

6. Now both latch heads are lifted up, so they can be
released from the latch hook.

7. Now the door can be opened.

Door release _
lever

..-..-

._

i

1

\

‘..

/

r’/

Latch head

-._

Latch lever

Monitor

switch

Latch

hook

Lower latch switch

Figure D-l .Door Open Mechanism

R-2380

Counter Check

;tep

Procedure Order

Display

Touch START pad for 2 seconds.

1

w

After 2 sec. an entry signal

il

sounds.

Touch CHECK pad for 2 seconds.

pi-j llyvllr*i.

(For 2 sec.)

2

After 2 seconds.

m

(Total times used)

Touch NUMBER pad II.

El p-y--q

(Times of using memory 1)

Touch SELECTATIME pad.

3

pizGq /I

(Times of manual cooking)

Touch EXPRESS DEFROST pad.

l--EEq jl

(Times of EXPRESS DEF­ROST cooking)

Although the owner can clear all memories (including total times used), the total times the oven has been used
since the last service are retained in the memory. To recall this information carry out the procedure as outlined
in the below.

Carry out steps 1 and 2 above. Then press

3

the SET, VOLUME and START pads.

Y

9’

Resetting the counter memory

When the counter memory is displayed on the readout (see page 9 Counter Check), the count can be reset
to zero by touching the SELECTAPOWER pad for 2 seconds
To reset memory 1 to zero.

itep

Procedure

Order

Touch START pad for 2 seconds.

rxz---j

1

(For 2 sec.)
After 2 sec. an entry signal
sounds.

Touch CHECK pad for 2 seconds.

I

CHECK

(For 2 sec.)

Touch NUMBER pad II.

I

1

Touch SELECTAPOWER pad for 2
seconds.

pGq

(For 2 sec.)

4

(After 2 seconds.)

Display

I

WIJYRER

CHECK

(Total times used)

(Times of using memory 1)

m 1. To cancel Counter Check modes, touch STOP/CLEAR pad.

2. To clear times of manual cooking, touch SELECTATIME pad at Step 3 instead of NUMBER pad.
To clear times of EXPRESS DEFROST cooking, touch EXPRESS DEFROST pad at Step 3 instead
of NUMBER pad.

3. To clear total using times, skip Step 3.

RESETTING SERVICE COUNT

Carry out steps 1 and 2 above. Then press

El

CHECK

3

the SET, VOLUME and START pads.

I

VOLUME

Touch SELECTATIME pad.

jl

(For 2 sec.)

4

(After 2 seconds.)

10

1 986~ /

0

!-----v

One or two stage cooking can be programmed into any of the 10 programme positions.

To programme the time and power level into a memory

l Suppose you wish to enter 4 minutes at 60% for a single quantity in the memory 1

itep

Procedure

Touch START pad for 2 seconds.

1

2

Touch NUMBER pad II.

3

Touch SELECTATIME pad.

4 gh NUMBER pads 141 , 101 and

5

Touch SELECTAPOWER pad.

Order

Display

Ez I’
After 2 sec. an entry signal
sounds.

I

6

Touch NUMBER pad 161.

I

6

NOTE: This machine would have been preset to suit the owner’s requirements. If you alter any memory set-

tings during the service please notify the owner when the oven is returned.

MEMORY CHECK

l Suppose you want to know the information programmed into the memory 1, programmed for 4 minutes at 60%

IStep I

Procedure

Touch START pad for 2 seconds.

1

2

Touch CHECK pad.

I

I

3

Touch NUMBER pad m

J

After 2 sec. an entry signal

11

To change the time constant for double quantity

The time constant for double quantity is preset 1.8 times the single quantity cooking time, but you can alter
this constant to suit your needs.

l Suppose you wish to alter the time constant to 1.67 in memory 1.

-

;tep

Order

Display

Touch START pad for 2 seconds.

1 START 1

(For 2 sec.)
After 2 sec., an entry signal
sounds.

1

2

­3

4

5

6

Touch DOUBLE QUANTITY pad for 2
seconds.

1 NUMBER

I

(For 2 sec.)
After 2 sec. an entry signal
sounds.

El

1

Touch NUMBER pad II.

Touch SELECTATIME pad.

!

‘“‘r::j

I

I

J

NUMBER pads /1 , 161 and

mm171

Touch SET pad.

El

SET

L

DOUBLE QUANTITY CONSTANT CHECK

Suppose you wish to know the double quantity constant entered into programme 1.

Order

Display

tep

Procedure

I

START

Touch START pad for 2 seconds.

1

(For 2 sec.)
After 2 sec., an entry signal
sounds.

NUMBER

CHECK

Touch CHECK pad.

3

I”“‘y,‘“‘”

I’“‘::1

Touch DOUBLE QUANTITY pad.

3

/

1

4

Touch NUMBER pad )1

12

R-2330

EXPRESS DEFROST

To set te constants of Express Defrost to factory setting:

1st sequence: 20% of total time at 40% power.
2nd sequence: 30% of total time at 30% power.

3rd sequence: 50% of total time at 20% power.

itep

Procedure Order Display

Touch START pad for 2 seconds.

1

!izz i
After 2 sec. an entry signal
sounds.

2

Touch SET pad.

m 1”“___1

3

Touch START pad.

/I r”-l

4

Touch EXPRESS DEFROST pad.

l---EEq v”il

5

Touch SELECTATIME pad.

LIEffEl

v

6

Touch NUMBER pads /21, 101

mm

VI

7

Touch SELECTATIME pad.

piizz-j v”‘D1

8

Touch NUMBER pad 121.

El

/I

9

Touch SELECTAPOWER pad.

I

Continued on page 14.

13

EXPRESS DEFROST

--_. . _---

__. ..-

Step

Procedure

Order

Display

Touch NUMBER pad 141.

10

El -1

Touch SELECTATIME pad.

11

LEEEEl p-x&--j

12

Touch NUMBER pads a, 131.

mEr /r0-‘i3

Touch SELECTATIME pad.

13

pzEq v\

14

Touch NUMBER pad 131.

m VI

Touch SELECTAPOWER pad.

15

ISELECTAPOWER/ -1

16

Touch NUMBER pad 131.

m p---ygq

Touch SELECTATIME pad.

17

y=l /I

Touch NUMBER pad a.

El

18

il

Touch SELECTAPOWER pad.

19

~

p-----q

20

Touch NUMBER pad /21.

m

p----q

21

Touch SET pad.

14

SERVICING

WARNING TO SERVICE PERSONNEL

Microwave ovens contain circuitry capable of producing very high voltage and current, contact with any part

of the high voltage circuit will result in electrocution.

REMEMBER TO CHECK JlJ

1) Disconnect the supply.

2) Door opened, and wedged open.

3) Discharge high voltage capacitor, after remov­ing the outer case cabinet and rear cabinet,

WARNING AGAINST THE CHARGE OF THE

HIGH-VOLTAGE CAPACITOR

The high-voltage capacitor remains charged
about 60 seconds after the oven has been
switched off. Wait for 60 seconds and then
short-circuit

the

connection of the
high-voltage capacitor (that is, of the con­necting lead of the high-voltage rectifier)
against the chassis with the use of an insu­lated screwdriver.

Sharp recommend

that wherever

possible

fault-finding is carried out with the supply discon-

nected. It may in, some cases, be necessary to

connect the supply after the outer case has been

removed, in this event carry out 3D checks and then
disconnect the leads to the primary of the power
transformer. Ensure that these leads remain isolated
from other components and the oven chassis. (Use
insulation tape if necessary.) When the testing is
completed carry out 30 checks and reconnect the
leads to the primary of the power transformer.

REMEMBER TO CHECK 4R

1) Reconnect all leads removed from components
during testing;

2) Replace the outer case (cabinet).

3) Reconnect the supply.

4) Run the oven. Check all functions.

Microwave ovens should not be run empty. To test
for the presence of microwave energy within a
cavity, place a cup of cold water on the oven tray,
close the door and press the SELECTATIME key
and set the microwave timer for one (1) minute. Set

the power level to 100% and push the START but­ton. When the one minute has elapsed (timer at
zero) carefully check that the water is now hot. If
the water remains cold carry out 3D checks and

re-examine the connections to the component be­ing tested.

When all service work is completed, and the oven is fully assembled, the microwave power output should
be checked and a microwave leakaae test carried out.

TROUBLESHOOTING GUIDE

When troubleshooting the microwave oven, it is

helpful1 to follow the Sequence of Operation in per­forming the checks. Many of the possible causes of
trouble will require that a specific test be performed.
These tests are given a procedure letter which will be
found in the “Test Procedure”section.

IMPORTANT: If the oven becomes inoperative be-

cause of a blown fuse j?J BSF 13A in
the upper latch switch - lower latch
switch - monitor switch - monitor
resisitor circuit, check the upper latch

~switch, monitor switch and monitor

resistor before replacing the fuse fi

BSF 13A.

15

NOTE: “C,” means direct cause and part. “A” means indirect cause and part.

m

-

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H.V. RECTIFIER
ASSEMBLY WITH
HVC HARNESS
ASSEMBLY

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PROBLEM

i does not appear in display

but power supply cord is plugged into
wall outlet.

Keys are touched but the programme
can not be entered.

When the door is opened, FUSE F3 BSF

13A blows.

Home fuse blows when power supply
cord is plugged into wall outlet.

OFF

CONDITION

FUSE BSF 13A F3 blows when power

supply cord is plugged into wall outlet.

Oven lamp and blower motor do not
work for 1 minute whenever the door is
opened or after cooking.

When the door is opened, blower motor

works but oven lamp does not work.

When the door is opened, oven lamp
works but blower motor does not work.

I-1 appears in display.

r

1 E E

, c’ 1 appears in display.

16

R-2380

17

I-WUJI-

LDZOWWD3CXW

66mm

v

H.V. RECTIFIER

ASSEMBLY WITH

HVC HARNESS

ASSEMBLY

PROBLEM

-31 appears in display.

/EE] appears in display.

0000000000000 oc

-7) appears in display.

n] appears in display.

Keys are touched but the programme
can not be entered.

Both oven lamp and blower motor do not
work.

0

Only oven lamp does not work.

Only blower motor does not work.

IN
:ONDITION

Digital display shows cooking time is 0
or STOP/CLEAR key is touched but oven
does not stop. (Oven lamp and blower
motor does not work.)

Oven goes into cook cycle but food is
heated extremely uneven.

Oven goes into cook cycle but shuts
down before end of cooking cycle.
(Microwave power level is set in 1 O%.)

0

Oven seems to be operating but no heat
is produced in oven load. (Microwave OOOOOOO()OOOOO

OC

power level is set in lo%.)

More than 1 minute has elapsed since
cooking has ended but the oven lamp
and blower motor continue to operate.

18

R-2380

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19

TEST PROCEDURES

PROCEDURE

LETTER

COMPONENT TEST

A

MAGNETRON TEST

I

NEVER TOUCH ANY PART IN THE CIRCUIT WITH YOUR HAND OR AN INSULATED

TOOL WHILE THE OVEN IS IN OPERATION.

I

CARRY OUT Q CHECKS

Isolate the magnetron from the high voltage circuit by removing all leads connected to the filament

terminal.

To test for an open circuit filament use an ohmmeter to make a continuity test between the
magnetron filament terminals, the meter should show a reading of less than 1 ohm.

To test for a short circuit filament to anode condition, connect ohmmeter between one of the fil­ament terminals and the case of the magnetron (ground). This test should be indicated an inifinite
resistance. If a low or zero resistance reading is obtained then the magnetron should be replaced.

MICROWAVE OUTPUT POWER

The following test procedure should be carried out with the microwave oven in a fully assembled
condition (with outer case fitted).
Microwave output power from the magnetron can be measured by way of substitution, i.e. it can

be measured by using water load how much it can be absorbed by the water load. To measure
the microwave output power in the microwave oven, the relation of calorie and watt is used.
When P(W) heating works for t(second), approximately P x t/4.2 calorie is generated. On the

other hand, if the temperature of the water with V(ml) rises AT (“C) during this microwave

heating period, the calorie of the water is V x AT.

The formulae is as follows;

P x t / 4.2 = V x AT
P (W) = 4.2 x V x AT/t

Our condition for the water load is as follows:
Room temperature . . . around 2O”C, Power supply Voltage . . . 240 volts.

Water load . . .

2000 ml, Initial temperature . . . lO+l”C, Heating time . ..I min. 5sec

P=lOOxAT

Measuring method:
A) Use two 1 litre Pyrex beakers with a diameter of approximately of 12cms.

B) Place 1 litre of ambient temperature water in each beaker.

C) Mark Tl on the one beaker and mark T2 on the other one. And stir the water and measure the

temperature of water the thermometer and note them. The graduation of the thermometer must

be scaled by 0.1 “C at minimum and an accurate mercury thermometer is recommended.

Example: The initial temperature Tl = 1 O”C, T2 = 11 “C

D) Place the two beakers equally spaced between the side walls in the centre of the cavity.

E) Set the timer to 1 minute 5 seconds at 100% power (the time required to raise the water tem-

perature 10 degrees C.)
F) The time must be measured with stopwatch or wristwatch.
G) After 1 minute and 5 seconds, stop the oven by opening the door.
H) Remove the two beakers from the oven and measure the temperature of the water by stiring the

water with the thermometer and noting the readings.

20

TEST PROCEDURES (CONT’D)

PROCEDURE

LETTER

COMPONENT TEST

Example: Tl = 20X, T2 = 21 “C

Initial temperature Tl = 10°C T2 = 11°C

Temperature after 1 min. 52 sec.

Tl = 20°C T2 = 21 “C

Temperature difference Cold-Warm AT1 = 10°C AT2 = 10°C

Mean temperature rise AT AT =(ATl +AT2)/2 I

= (10°C + 10%) / 2

/ = 10°C

I

Measured output power

The equation is as follows:

P= 130x AT

P= 130 x 10°C

= 1300 Watts

NOTE: The measured output power should be at least +I5 % of the rated

output power.

CAUTION: 1°C CORRESPONDS TO 130 WATTS.

REPEAT MEASUREMENT IF THE POWER IS INSUFFICIENT.

I

3

(Tl “Cl

fT2 OCI

(T2 “C)

Heat up for 1 min. 5 sec.

I

6

POWER TRANSFORMER TEST

WARNING: High voltages and large currents are present at the secondary winding

and filament winding of the power transformer. It is very dangerous to

work near this part when the oven is on. NEVER make any voltage

measurements of the high-vltage circuits, including the magnetron fil-

ament.

CARRY OUT 3D CHECKS.

Disconnect the leads to the primary winding of the power transformer. Disconnect the filament
and secondary winding connections from the rest of the HV circuitry. Using an ohmmeter, set
on a low range, it is possible to check the continuity of all three windings. The following readings
should be obtained :-

a. Primary winding ----------1.4 ohms approximately.

b. Secondary winding -------80 ohms approximately.

c. Filament winding ---------less than 1 ohm.

If the reading obtained are not as stated above, then the power transformer is probably faulty and
should be replaced.

CARRY OUT 4R CHECKS

21

~-

2380

TEST PROCEDURES (CONT’D)

PROCEDURE

LETTER

COMPONENT TEST

C

HIGH VOLTAGE RECTIFIER ASSEMBLY TEST

HIGH VOLTAGE RECTIFIER TEST

CARRY OUT 3D CHECKS.

isolate the high voltage rectifier assembly from the HV circuit. The high voltage rectifier can be
tested using an ohmmeter set to its highest range. Connect the ohmmeter across the terminal
B+C of the high voltage rectifier and note the reading obtained. Reverse the meter leads and note
this second reading. The normal resistance is infinity in one direction and more than 100 kR in
the other direction.

CARRY OUT & CHECKS

ASYMMETRIC RECTIFIER TEST

CARRY OUT 3D CHECKS.

Isolate the high voltage rectifier assembly from the HV circuit. The asymmetric rectifier can be
tested using an ohmmeter set to its highest range. Connect the ohmmeter across the terminals
A+B of the asymmetric rectifier and note the reading obtained. Reverse the meter leads and note
this second reading. If an open circuit is indicated in both directions then the asymmetric rectifier

is good. If a asymmetric rectifier is shorted in either direction, then the the asymmetric rectifier

is probably faultly and must be replaced with the high voltage rectifier. When the asymmetric

rectifier is defective, check whether magnetron, high voltage rectifier, high voltage wire or fila-

ment winding of the power transformer is shorted.

CARRY OUT 9 CHECKS

AA=%:” “QLTAGE RECTlFlER

NOTE: FOR MEASUREMENT OF THE RESISTANCE OF THE RECTIFIRE, THE BATTERIES

OF THE MEASURING INSTRUMENT MUST HAVE A VOLYAGE AT LEAST 6 VOLTS,
BECAUSE OTHERWISE AN INFINITE RESISTANCE MIGHT BE SHOWN IN BOTH
DIRECTIONS.

D HIGH VOLTAGE CAPACITOR TEST

CARRY OUT 3D CHECKS.

A. Isolate the high voltage capacitor from the circuit.

B. Continuity check must be carried out with measuring instrument which is set to the highest

resistance range.

C. A normal capacitor shows continuity for a short time (kick) and then a resistance of about

10 MQ after it has been charged.
D. A short-circuited capacitor shows continuity all the time.
E. An open capacitor constantly shows a resistance about 10 MS2 because of its internal 10

MD resistance.

F. Whe the internal wire is opened in the high voltage capacitor, the capacitor shows an infinite

resistance
G. The resistance across all the terminals and the chassis must be infinity when the capacitor

is normal.
If incorrect readings are obtained, the high voltage capacitor must be replaced.

CARRY OUT 4R CHECKS

22

R-2380

TEST PROCEDURES (CONT’D)

PROCEDURE

LETTER COMPONENT TEST

E SWITCH TEST

CARRY OUT 3D CHECKS.

isolate the switch to be tested and using an ohmmeter check between the terminals as described
in the following table.

Table: Terminal Connection of Switch

Plunger Operation

COM to NO

COM to NC

Released

O.C.

S.C.

Depressed

SC. O.C.

COM; Common terminal, NO; Normally open terminal, NC; Normally closed terminal
S.C.; Short circuit, O.C.; Open circuit

If incorrect readings are obtained, make the necessary switch adjustment or replace the switch.

CARRY OUT 4R CHECKS.

F FUSE M8A Fl OR F2 TEST

CARRY OUT 3CJ CHECKS.

If the fuse F1 or a is blown, there is a.short in the asymmetric rectifier or there is an earth in

the wire harness. A short in the asymmetric rectifier may be occured due to short or ground in

H.V. rectifier, magnetron, power transformer or H.V. wire. Check them and replace the defective
parts or repair the wire harness.

CARRY OUT 4R CHECKS

CAUTION: Only replace fuse with the correct value replacement.

G

FUSE BSF 13A F3 TEST

CARRY OUT 3D CHECKS

1. If the special fuse BSF 13A m is blown, there is a shorts or grounds in electrical parts or wire
harness.

2. If the fuse BSF 13A F3 is blown when the door is opened, check the upper latch switch, lower
latch switch, monitoEwitch and monitor resistor.

If the fuse BSF 13A s is blown by incorrect door switching replace the defective switch(s)

and the fuse BSF 13A F3.

CARRY OUT 4R CHECKS

CAUTION: Only replace fuse with the correct value replacement.

23

TEST PROCEDURES (CONT’D)

PROCEDURE

LETTER

COMPONENT TEST

H

TEMPERATURE FUSE OR THERMAL CUT-OUT TEST

CARRY OUT 3D CHECKS

Disconnect the leads from the terminals of the temp. fuse or thermal cut-out. Then using an

ohmmeter, make a continuity test across the each two terminals as described in the table below.

CARRY OUT 4J CHECKS

Table: TemDerature Fuse or Thermal Cut-out Test

Parts Name

Temperature of

Temperature of

“ON” condition

“OFF” condition

(closed circuit). (open circuit).

m

(“C)

Indication of

ohmmeter

(When room

temperature is

approx. 2O’C.)

Oven temo. fuse

1 This is not resetable 1 Above 15O’C

1 Closed circuit

1 50°c

type.
MG thermal cut-out
145Oc

Below - 2o”c

Above 145’C Closed circuit.

Blower motor

thermal cut-out
115°C

Below - 20°C Above 115°C

Closed circuit

If incorrect readings are obtained, replace the temp. fuse or thermal cut-out.

An open circuit MG thermal cut-out indicates that the magnetron has overheated, this may be
due to resistricted ventilation, cooling fan failure or a fault condition within the magnetron or

HV circuit.

An open circuit oven temp. fuse 150°C indicates that the oven cavity has over heated, this may
be due to no load operation.

An open circuit blower motor thermal cut-out 115°C indicates the blower motor winding has
overheated, this may be due to resisted ventilation or locked cooling fan.

I

MONITOR RESISTOR TEST

CARRY OUT 3D CHECKS.

Disconnect the leads from the monitor resistor.
Using an ohmmeter and set on a low range.
Check between the terminals of the monitor resistor as described in the following table.

Table: Resistance

I

Resistor

I

Resistance

I

Monitor resistor Approx. O.Sfi

If incorrect readings are obtained, replace the monitor resistor or surge resistor

CARRY OUT 4R CHECKS.

24

R-2380

TEST PROCEDURES (CONT’D)

PROCEDURE

LETTER

COMPONENT TEST

J

THERMISTOR TEST

CARRY OUT 3D CHECKS

Disconnect connector B from the CPU unit. Measure the resistance of the thermistor with an

ohmmeter. Connect the ohmmeter leads to the leads of the thermistor.

1 Room Temp.

1 Resistance

1 68”F(2O”C) - 86”F(3O”C)

/ Approx. 61.5kQ - 39.5kf2

1

If the meter does not indicate above resistance, replace the thermistor.

CARRY OUT $R CHECKS

MOTOR WINDING TEST

CARRY OUT 3iJ CHECKS

Disconnect the leads from the motor.
Using an ohmmeter, check the resistance between the two terminals as described in the tab!e
below.

Table: Resistance of Motor

IM

otors

Resistance

1 Blower motor

I Apuroximatelv 35 ohms

If incorrect readings are obtained, replace the motor.
CARRY OUT @ CHECKS

25

!380

TEST PROCEDURES (CONT’D)

PROCEDURE

LETTER

COMPONENT TEST

L

TOUCH CONTROL PANEL ASSEMBLY TEST

The touch control panel consists of circuits including semiconductors such as LSI, ICs, etc.
Therefore, unlike conventional microwave ovens, proper maintenance cannot be performed with
only a voltmeter and ohmmeter. In this service manual, the touch control panel assembly is di­vided into three units, Control Unit, Key Unit and LED Unit, troubleshooting by unit replacement

is described according to the symptoms indicated.

1. Key Unit.
The following symptoms indicate a defective key unit. Replace the key unit.
a) When touching the pads, a certain pad produces no signal at all.
b) When touching the pads, sometimes a pad produces no signal.

2. Control Unit.

The following symptoms indicate a defective control unit. Replace the control unit.

2-l Programming problems.

a)

When touching the pads, a certain group of pads do not produce a signal.
2-2 Display problems.
a)

For a certain digit, all or some segments do not light up.

b) For a certain digit, brightness is low.
c) Only one indicator does not light up.
d) The corresponding segments of all digits do not light up; or they continue to light up.
e) Wrong figure appears.
f)

A certain group of indicators do not light up.
g) The figure of all digits flicker.
2-3 Other possible problems caused by defective control unit.
a)

Buzzer does not sound or continues to sound.
b) Cooking is not possible.

3. LED Unit
The following symptoms indicate a defective LED Unit. Replace the LED Unit.
a) When desired memory pad(example,No.l)is touched No.1, LED does not

light or LEDs do not turn off.
b) None of the LEDs light up.
c) Only certain LEDs will not light up.

M

KEY UNIT TEST

If the display fails to clear when the STOP/CLEAR pad is depressed, first verify the flat ribbon
is making good contact, verify that the door sensing switch (stop switch) operates properly; that
is; the contacts are closed when the door is closed and open when the door is open.

If the door sensing switch (stop switch) is good, disconnect the flat ribbon cable that connects

the key unit to the control unit and make sure the door sensing switch is closed (either close the
door or short the stop switch connecter). Use the key unit matrix indicated on the control panel
schematic and place a jumper wire between the pins that correspond to the STOP/CLEAR pad
making. momentary contact. If the control unit responds by clearing with a beep, the key unit is
faulty and must be replaced. If the control unit does not respond, it is faulty and must be re­placed.

N

If a specific pad does not respond , the above method may be used (after clearing the control
unit ) to determine if the control unit or key pad is at fault.

RELAY TEST

CARRY OUT 3D CHECKS

Remove the outer case and check voltage between Pin Nos. 5 and 7(or9) of the connector (A)

on the control unit with an A.C. voltmeter.
The meter should indicate the rated volts, if not check oven circuit.

RYl,RYS and RY4 Relay Test

These relays are operated by D.C. voltage.

Check voltage at the relay coil with a D.C. voltmeter during the microwave cooking operation.

DC. voltage indicated . . . . . . . . . . Defective

relay.

26

R-2380

TEST PROCEDURES (CONT’D)

PROCEDURE

LETTER

COMPONENT TEST

DC. voltage not indicated . . . . . . . .

Check diode which is connected to the relay coil. If diode is

good, control unit is defective.

RELAY SYMBOL OPERATIONAL CONNECTED COMPONENTS

VOLTAGE

I

RYl Approx. 12 V.D.C. ’ Oven lamp and Cooling fan motor
FiY3

Approx. 14 V.D.C. Power transformer 1

RY4 Approx. 14 V.D.C.

Power transformer 2

CARRY OUT 4R CHECKS

PROCEDURES TO BE TAKEN WHEN THE FOIL PATTERN ON THE PRINTED WIRING
BOARD (PWB) IS OPEN.

To protect the electronic circuits, this model is provided with a fine foil pattern added to the
primary on the PWB, this foil pattern acts as a fuse. If the foil pattern is open, follow the trou­bleshooting guide given below for repair.

Problem: POWER ON, indicator does not light up.

CARRY OUT 3D CHECKS

Disconnect the leads from the primary of the power transformer. Make sure that the leads remain

isolated from other oven components and chassis.(Use insulation tape if necessary.)

Reconnect the supply.

/STEPS I OCCURANCE I

CAUSE OR CORRECTION

1 The rated voltage is not applied to POWER terminal Check supply voltage and oven power cord.

of CPU connector (CN-A)

2

The rated voltage is applied to primary side of Power Power transformer or secondary circuit defective.
transformer. -

) Check and repair.

3

Only pattern at “a” is broken.

*Insert jumper wire 39 and solder.(CARRY OUT $Q
CHECKS BEFORE REPAIR)

I

I- ~~ -~~ -

4

Pattern at “a” and “b” are broken.

*Insert the coil RCILF2003YAZZ between “c” and
“d”.(CARRY OUT 3J CHECKS BEFORE REPAIR)

NOTE:* At the time of these repairs, make a visual in-

spection of the varistor for burn damage and
test the T/C transformer with an ohmmeter for
the presence of layer short-circuit (check pri­mary coil resistance).

If any abnormal condition is detected, replace

the defective parts.

CARRY OUT&R CHECKS

27

TOUCH CONTROL PANEL ASSEMBLY:

Outlines of Touch Control Panel

The touch control section consists of the following units as
shown in the touch control panel circuit.

(1) Control unit.
(2) Key unit.

The principal function of these units and the signals commu­nicated among them are explained below.

l-1 Control unit
Key touch and oven function control are all precessed by one
microcomputer.

I) Power Supply Circuit:

This circuit changes output voltage at the secondary side

Of power transformer to voltages required at each part by

all wave rectifying circuit, constant voltage circuit, etc.

2) ACL Circuit:
This is an Auto-clear Circuit, i.e., a reset circuit, which
enables ICl to be activated from initial state upon closing

power supply circuit.

3) Power SYNC Signal Generating Circuit:
This is a circuit for generating power SYNC signal by vir­tue of the secondary side output power transformer.
This signal is used for a basic frequency to time proces-

sing and so on.

4) Clock Circuit:
This is a circuit for controlling clock frequency required
for operating IC 1.

5) ICI (Main Processor):
This is a one-chip microcomputer, responsibie of control-

ling the whole controller.

6) IC3 (Memory Processor):
This is a memory IC, responsible of memory function.

7) Display Circuit:
This is a circuit for driving display tubes by ICl output.

8) Key Input Circuit:
This is a circuit for transmitting key input information to

El.

9) Sound-body Driving Circuit:

This is a circuit for driving sound body by ICl output.

10) Relay Driving Circuit:
This is a circuit for driving output relay by ICl output.

11) Stop SW Circuit:
This is a circuit for driving ICl to detect door opening/
closing.

12) Exhaust Gas Temperature Detecting Circuit:
This is a circuit for transmitting output change of ther­mistor (Temperature Sensor) to IC 1.

13) Magnetron Trouble-shooting Circuit
This is a circuit for detecting troubles at magnetron and
high voltage circuit by current change at the primary side
current of high voltage transformer at main body side.

l-2 Key unit
The key unit is composed of a matrix circuit in which when
a key is touched, one of signals Pl 1 -PI 7 generated by the
LSI, is passed through the key and returned to the LSI as one
of signals RO-R3.
This model has 10 Memory pads.
When the oven is shipped, Memory pad 1 to 0 are set as fol-

lows: fig 1

28

Memorv

Memory

pad No: FORMULA POWER pad No: FORMULA POWER

1 5 set

2 10 set

1

3

20 set

4 30 set

5 40 set

(fig 1)

This model have double quantity pad.
When the oven is shipped, Magnification “1.8” is preset in

double quantity pad.
This model have express defrost pad.
When the oven is shipped, express defrost is set as follows:
fig2.

1 STAGE

2 STAGE 3 STAGE
FORMULA P=0,2T+20 P=O.l3T+30 P=0.67T-50
POWER
OVEN

ON/OFF

40% 30%

20%

ON

ON

-

1

I

T: TTL COOKING TIME

(fig 2)

When l/z total cooking time is passed, the signal will sound
and “CHECK” indicator will flash.

2. DESCRIPTION OF LSI AND K’S

2-l. LSI (ICI : IZA324DR)

The I/O signals of the LSI (IZA324DR) are detailed in the following tables.

VREF

IN7
IN6
IN5
IN4
IN3
IN2
IN1

IN0
P47
P46
P45
P44
P43
P42
P41
P40
P37
P36
P35
P34
P33
P32
P31
P30

LSI

IZA324DR

AVCC
P20
P21
P22

P23
P24
P25
P26

P27

PO0

PO1

PO2

PO3

PO4

PO5

PO6

PO7

PlO

PI1

PI2

PI3

P14

PI5

PI6

P17

VP

RO

RI

R2
R3
4

Figure T-l Relationship between pin Nos. and Signals (LSI: IZA324DR)

29

I

q-2380

DESCRIPTION OF LSI

LS I WA324DR)
The l/O signal of the LSI (IZA324DR) is detailed in the following table.

Pin No. Signal I/O

Description

Reference voltage input terminal.

A reference voltage applied to the A/D converter in the LSI.
Connected to GND. (OV)

Memory (EEPROM) data input.

Temperature measurement input: OVEN THERMISTOR.
By inputting DC voltage corresponding to the temperature detected by the thermistor,

this input is converted into temperature by the A/D converter built into the LSI.

A/D input for troubleshooting Magnetron 1.

Terminal to change functions according to the model.
Signal in accordance with the model in operation is applied to set up its function.

AID input for troubleshooting Magnetron 2.

Connected to GND. (OV)

Terminal not used.

1

VREF

IN

2 IN7

IN

3 IN6

IN

4 IN5

IN

IN4

IN

6 IN3

IN

IN2

IN

8

IN0

IN

P47

Memory fEEPROM) data output.

Memory (EEPROM) clock ouput.

Memory (EEPROM) select output.

Magnetron high-voltage circuit driving signal.
To turn on and off the cook relay.

In 100% power level operation, “L” level during cooking; “H” level otherwise.
In other power level operation (90, 80, 70, 60, 50, 40, 30, 20, IO or O%), “H” and
“L” level is repeated according to power level.

P46

P45

r

P44 OUT

OUT

Power level ON OFF

100% 32 sec. 0 sec.

90 30

2
80 26 6
70 24 8
60

22 10

50 18

14

40 16

16
30 12 20
20 8

24

10 6 26

0 0

32

P43

OFF

--l-lJ-I:yD

30

Pin No.

Signal

I/O

Description

15

P42 OUT Terminal not used.

16

P41 OUT

Power supply output at thermistor detecting circuit.
(Output - 5V in cooking only, but apply high impedance to others to prevent thermistor

from electrolytic corrosion ocurrence.)

Oven lamp and Fan motor driving signal (Square waveform: 50Hz).

To turn on and off shut-off relay (RY 1).
The Square waveform voltage is delivered to the RYl driving circuit and relays (RY3,
RY4 COOK RELAY) control circuit.

17

P40 OUT

20.0 msec.
4

During cooking

18

P37

Terminal not used.

P36 OUT

P35 OUT

P34

OUT

P33

OUT

23

P32 OUT

Sianal to sound buzzer.
This signal is to control the 2.5 KHz continuous signal.

A: Key touch sound.
6: Guidance sound.
C: Completion sound.

0.1 sec.
GND

-----------i--- -rjv

1 sec. 1 sec.

1

400x 1o-6

= 2.5kHz

200psec. +I+ 200wec.

31

Pin No.

Signal I/O Description

24

P31

IN

Signal synchronized with commercial power source frequency.
This is the basic timing for all time processing of LSI.

25 P30

OUT

26 CNVSS

IN

27 RESET

IN

-r-u- *INo

L 20.0 msec. J---- L’L5V’

Terminal not used.

Connected to VC. (-5V)

Auto-clear terminal.

Signal is input to reset the LSI to the initial state when power is supplied.
Temporarily set to “L” level the moment power is supplied, at this time the LSI is reset.
Thereafter set at “H” level.

28 XIN

IN

Internal clock oscillation frequency setting input.
The internal clock frequency is set by inserting the ceramic filter oscillation circuit with

respect to XOUT terminal.

29 XOUT OUT

Internal clock oscillation frequency control output.
Output to control oscillation input of XIN.

30 XCIN

IN

31 XCOUT OUT

32 vss

IN

Terminal not used.

Power source voltage: -5V.

VC voltage of power source circuit input.

33 4 OUT

34

R3

IN

Terminal not used.

Signal coming from touch-key.
When either one of G-l 2 line keys on key matrix is touched, a corresponding signal out

of Pll -P17 will be input into R3.
When no key is touched, the signal is held at “L” level.

35 R2

IN

Signal similar to R3.
When either one of G-l 1 line keys on key matrix is touched, a corresponding signal will

be input into R2.

36 Rl

IN

Signal similar to R3.

When either one of G-10 line keys on key matrix is touched, a corresponding signal will

be input into R 1.

37

RO

IN

Signal similar to R3.

When either one of G-9 line keys on key matrix is touched, a corresponding signal will

be input into RO.

38 VP

IN

Anode (segment) of Fluorescent Display light-up voltage: -34V

VP voltage of power source circuit input.

32

Pin No.

Signal

I/O

Description

39 PI7 OUT I) Segment data signals.

The relation between signals and indicators are as follows:

Signal Segment

PI7 . . . . . . . . . . . . . . . . . . . . . . . . . LB

P16 . . . . . . . . . . . . . . . . . . . . . . . . . Ul3

PI 5 . . . . . . . . . . . . . . . . . . . . . . . . . h

PI4 . . . . . . . . . . . . . . . . . . . . . . . . . g

P13 . . . . . . . . . . . . . . . . . . . . . . . . . f

P12 . . . . . . . . . . . . . . . . . . . . . . . . . e

Pl 1 . . . . . . . . . . . . . . . . . . ..__... d

PI0 . . . . . . . . . . . . . . . . . . . . . . . . . c

Signal Segment

PO7 . . . . . . . . . . . . . . . . . . . . . . . . . b

PO6 . . . . . . . . . . . . . . . . . . . . . . . . . a

2) Key strobe signal.

Signal applied to touch-key section.
A pulse signal is input to RO - R3 terminal while one of G-6 line keys on key matrix

is touched.

40

P16 OUT 1) Segment data signals.

Signal similar to PI 7.

2) Key strobe signal.

Signal applied to touch-key section.
A pulse signal is input to RO - R3 terminal while one of G-5 line keys on key matrix
is touched.

41

P15

OUT 1) Segment data signals.

Signal similar to PI 7.

2) Key strobe signal.

Signal applied to touch-key section.
A pulse signal is input to RO - R3 terminal while one of G-4 line keys on key matrix
is touched.

42 P14 OUT

1) Segment data signal.

Signal similar to PI 7.

43

PI3 OUT

Segment data signal.

Signal similar to PI 7.

44 PI2 OUT

1) Segment data signal.

Signal similar to PI 7.

2) Key strobe signal.

Signal applied to touch-key section.
A pulse signal is input to RO - R3 terminal while one of G-8 line keys on key matrix

is touched.

33

Pin No.

Signal

I/O

Description

45

Pll OUT

1) Segment data signal.
Signal similar to P17.

2) Key strobe signal.
Signal applied to touch-key section.

A pulse signal is input to RO - R3 terminal while one of G-7 line keys on key matrix
is touched.

46

PlO

OUT

Segment data signal.
Signal similar to P17.

47

PO7 OUT

Segment data signal.
Signal similar to P17.

48

PO6 OUT

Segment

Signal similar to P17.

49

PO5

OUT

Digit selection signal.

The relation between digit signal and digit are as follows:

Digit signal

digit Digit signal

digit

PO5 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 St

PO2......

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4th

PO4.. . . . . . . . . . . . . .

. . . . . . . . . . . . . . . . . . . . . . 2nd PO1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5th

PO3

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3rd

PO0 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6th

Normally, one pulse is output in every R period, and input to the grid of the Fluorescent
Display.

----H

R (50HzJ

--L

n-----

___-___ _--_

GND

PO5 --i I-34.0”

PO4 n

PO3 --AI---

-

PO2 --..-I I

PO1 1

PO0 n

34

Pin No. Signal

I/O

Description

50

PO4 OUT Digit selection

signal.

~ Signal similar to P05.

51 PO3 OUT

52 PO2 OUT

53

PO1 OUT

54 PO0 OUT

55

P27

OUT

Terminal not used.

56 P26

OUT

57 P25 OUT

58 P24 OUT

Terminal not used.

59

P23 OUT

(Sound) Volume Level Control Terminal.

This terminal (P-23) is to control volume level of buzzer sound with terminals, P22 and
P21. Since the volume level of buzzer sound depends on voltage energized, it is control­lable in 5 steps by combining signal levels for P23, P22 and P21.
Relationship of signal level combination to sound volume level is shown in the following
table. @ - @ in the table, however, are indicated in the descending order from the maxi­mum level of sound volume through the minimum level.

Table

60

61

62

63

64

AC-l!

@ 0 (Max) 34.OV

0

23.6V

* At Output terminal P32, rectangular wave

0

18.8V

0

10.7v

signal of 2.5 KHz is output.

0

7.3v

P22 OUT

Sound level control signal.

___ Refer to above signal P23 (pin No. 59)

P21 OUT

P20

IN

Input signal which communicates the door open/close information to LSI.
Door close; “H” level signal (OV)

Door opened; “L” level signal (-34V)

AVCC

IN Connected to GND.

vcc

IN Connected to GND.

35

2-2 IViemory IC (IC3)

CAT 35C102 is a 2K-bit, serial memory, enabling
CMOS to be erased/written electrically. This memo­ry is constructed with 128 registers X 16 bits, enab­ling individual access, read and write operations to
be performed.
Details of input/output signal for IC3 are as shown
in the following diagram.

TOP VIEW

vcc GYD

f-4

Data register

t-t~ output

SK+ Clock generator ]

Jo

Figure T-2 Relation between Pin Nos. and Signals

Pin No.

Signal

I/O

Description

1

cs OUT

Chip Select:

accepts data input at HI.

~---;y~

I
I
1

2

SK IN

Clock Signal Input

inputs/outputs serial data at every one pulse.

; m---;;;
I

I

3 DI

IN

Serial data input:

receives instruction and data from ICl .

I

- - -GND

7 5/LS 153$fi

40JlS

-

I

-- --5v

36

Pin No.

Signal

I/O

Description

4

DC

OUT Serial data output:

outputs data to IC 1.

I

I

-GND

4oops

I
I

-5v

5 GND

IN Connected to VC. (- 5V).

6 ORG

IN Connected to GND.

7

NC

IN Terminal not used.

8 vcc

IN Connected to GND.

3 Magnetron Trouble-shooting Circuit

This is a circuit for detecting troubles of magnetron
along with high voltage circuit at the main body side
by variation of the current flowing in high voltage

transformer at the main body side.

During heating, flows the primary side current of high
voltage transformer in current transformers T2 or T3.
Then, generated in the secondary sides of current
transformers in AC voltage, which is determined by
R61 or R62. Execute halfwave rectification of the se­condary side AC current at D63 or D64, and then
smooth it at C63 or C64 to input to IN3 or IN5 ports
of ICI.

HIGH VOLTAGE TRANSFORMER

D63 or R63 or D65 or

VC

Figure T-3 Magnetron Trouble-shooting Circuit

37

SERVICING

1. Precautions for Handling Electronic Components
This unit used PMOS LSI in the integral part of the circuits.
When handling these parts, the following precautions should
be strictly followed.
PMOS LSI have extremely high impedance at its input and
output terminals. For this reason, it is easily influenced by
the surrounding high voltage power source, static electri­city charged in clothes, etc, and sometimes it is not fully
protected by the built-in protection circuit.

1) When storing and transporting, thoroughly wrap them

in aluminum foil.
Also wrap PW boards containing them in aluminum foil.

2) When soldering, ground the technician as shown in the

figure and use grounded soldering iron and work table.

2. Shapes of Electronic Components

Transistor Transistor

2SB793

2SA1561TL

Transistor
DTA 143ES
DTA114YS
DTD 143ES
DTB 143ES

3. Servicing of Touch Control Panel
We describe the procedures to permit servicing the touch
control panel of the microwave oven and the caution you
must consider when doing so.
To carry the servicing, power supply to the touch control
panel is available either from the power line of the oven pro­per itself of from an external power source.

(I 1 Servicing the touch control panel with power supply

from the oven proper:
CAUTION:
THE HIGH VOLTAGE TRANSFORMER OF THE
MICROWAVE OVEN IS STILL ALIVE TO GIVE
YOU DANGER DURING SERVICING.
Therefore, when checking the performance of the
touch control panel, put the outer cabinet on the oven
proper to keep you from touching the high tension
transformer, or unplug the primary terminal (connec­tor) of the high power transformer to turn it off; and
the end of such connector shall be insulated with an
insulating tape. After servicing, be sure to replace the
leads to their original locations.

A.

B.

(2)

On some models, the power supply cord between the
touch control panel and the oven proper is so short that
they can’t be separated from each other.
For those models, therefore, check and repair all the

controls (with the sensor-related ones included) of the
touch control panel while keeping it in contact with the

oven proper.

On some models, on the other hand, the power supply
cord between the touch control panel and the oven pro-

per is so long that they may be separated from each
other. For those models, therefore, it is allowed to
check and repair the controls of the touch control panel
while keeping it apart from the oven proper; in this case
you must short both ends of the door sensing (on PWB)
of the touch control panel with a jumper, which brings
about an operational state that is equivalent to that with

the oven door being closed.
As to the sensor-related controls of the touch control

panel, their checking is allowed if the dummy resistor(s)
whose resistance is equal to that of those controls is
used.

Servicing the touch control panel with power supply
from an external power source:
Disconnect the touch control panel completely from the
oven power, and short both ends of the door sensing
switch (on PWB) of the touch control panel, which

brings about such an operational state that is equiva-

lent to that with the oven door being closed. And con­nect an external power source to the power input
terminal of the touch control panel, and then it is allo­wed to check and repair the controls of the touch con­trol panel; as in the case of (1) B above, it is here also
possible to check the sensor-related controls of the
touch control panel by using the dummy resistor(s).

4. Servicing Tools
Tools required when servicing the touch control panel
assembly.

1) Soldering: 30W
(To prevent leaking current, it is recommended to use
a soldering iron with grounding terminal.)

2) Oscilloscope: Single beam, frequency range: DC ­IOMHz type or more advanced model

3) Others: Hand tools

5. Other Precautions

1) When turning on the power source of the control unit,
remove the aluminum foil applied for preventing static
electricity.

2) Connect the connectors of the indicator and key units
to the control unit taking care that the lead wires are not
twisted.

3) After aluminum foil is removed, take extra care that
abnormal voltage due to static electricity etc. is not
applied to the input or output terminals.

4) Attach connectors, electrolytic capacitors, etc. to PW
board, taking care that all connections are tight.

5) Be sure to use specified components where high preci­sion is required.

38

COMPONENT REPLACEMENT AND ADJUSTMENT PROCEDURE

WARNING: Avoid possible exposure to microwave energy. Please follow the instructions below

before operating the oven.

1. CARRY OUT 30 CHECKS.

2. Make sure that a definite “click” can be heard when
the microwave oven door is unlatched. (Hold the
door in a closed position, then pull the door release
lever with one hand, this causes the latch heads to
rise, it is then possible to hear a “click” as the door
switches operate.)

3. Visually check the door and cavity face plate for
damage (dents, cracks, signs of arcing etc.).

1. Door does not close firmly.

2. Door hinge, support or latch hook is damaged.

3. The door gasket or seal is damaged.

4. The door is bent or warped.

5. There are defective parts in the door interlock sys­tern.

6. There are defective parts in the microwave gener­ating and transmission assembly.

7. There is visible damage to the oven.

Carry out any remedial work that is necessary before
operating the oven.

Do not operate the oven if any of the following con-

ditions exist;

Do not operate the oven:

1. Without the RF gasket (Magnetron).

2. If the wave guide or oven cavity are not intact.

3. If the door is not closed.

4. If the outer case (cabinet) is not fitted.

Please refer to ‘OVEN PARTS, CABINET PARTS, DOOR PARTS’, when carrying out any of the following removal
procedures:

OUTER CASE CABINET AND REAR CABINET REMOVAL

To remove the outer case, proceed as follows.

1. Disconnect oven from power supply.

2. Open the oven door and wedge it open.

3. Remove the screws from rear and along the side
edge of case, referring to Figure C-l.

4. Slide the entire case back about 1 inch (3cm) to
free it from retaining clips on the cavity face plate.

5. Lift the entire case from the oven.

6. Remove the screws holding the rear cabinet to the
oven, referring to Figure C-l.

7. Remove the rear cabinet.

Outer case cabinet

8. Discharge the HV capacitor before carring out any
further work.

9. Do not operate the oven with the outer case re­moved.

Y-

Rear cabinet

N.B.; Step I,2 and 8 form the basis of the 30 checks.

CAUTION: DISCHARGE HIGH

VOLTAGE

CAPACITOR BEFOR TOUCHING ANY

Figuie C-l. Switch Removal

OVEN COMPONENTS OR WIRING.

HIGH VOLTAGE COMPONENTS REMOVAL

(HIGH VOLTAGE CAPACITOR AND HIGH VOLTAGE RECTIFIER ASSEMBLY)

To remove the components, proceed as follows.

1. CARRY OUT JJ CHECKS

2. Remove two (2) screws holding earth side termi­nals of high voltage rectifier assemblies.

3. Remove two (2) screws holding capacitor holder
to back of the oven cavity and remove the capacitor
holder.

4. Disconnect all the leads and terminals of high volt­age rectifier assembly from high voltage capacitor.

5. Now, high voltage rectifier assembly should be free.

CAUTION

1. DO NOT REPLACE ONLY HIGH VOLTAGE
RECTIFIER. WHEN REPLACE IT, REPLACE HIGH

VOLTAGE RECTIFIER ASSEMBLY.

2. WHEN REPLACING HIGH VOLTAGE RECTIFIER
ASSEMBLY, ENSURE THAT THE CATHODE

(EARTH) CONNECTION IS SECURELY FIXED TO

THE CHASSIS WITH A EARTHING SCREW.

I
I

39

MAGNETRON REMOVAL

1. CARRY OUT 3D CHECKS.

2. Carry out item 2 to item 16 of “POWER TRANS­FORMER AND BLOWER MOTOR REMOVAL”.

3. Remove the four (4) screws holding the magnetron

to the oven cavity. Remove the magnetron from the
oven cavity.

4. Now, the magnetron is free.

CAUTION: WHEN REPLACING THE MAGNETRON,

BE SURE THE R.F. GASKET IS IN
PLACE AND

THE

MAGNETRON
MOUNTING SCREWS ARE TIGHTENED
SECURELY.

POWER TRANSFORMER AND

BLOWER MOTOR REMOVAL BLOWER MOTOR

1. CARRY OUT 3D CHECKS.

2. Remove the c&holding the magnetron duct cover.

3. Remove the magnetron cover.

4. Disconnect the wire leads from the blower motor
and the blower motor thermal cut-out.

5. Remove the single (1) screw holding the blower
motor to the oven cavity.

6. Release the HVC harness from the purse lock on the
blower motor.

7. Remove the blower motor. Now, the blower motor
is free.

CAUTION: WHEN THE NEW BLOWER MOTOR IS 1

INSTALLED TWO PURSE LOCKS MUST
BE FITTED IN IT BECAUSE IT DOES
NOT HAVE ANY PURSE LOCKS.

POWER TRANSFORMER

8.

Remove the single (1) screw holding the air guide
C to the oven cavity.

9.

Remove the air guide C from the oven cavity.

IO. Remove the single (1) screw holding the stirrer

duct to the oven cavity.

11. Remove the stirrer duct from the oven cavity.

12. Disconnect the wire leads from the power trans­former.

13. Disconnect the wire leads from the magnetron fil­ament.

14. Release the wire leads from the hook of the air
duct.

15. Remove the single (1) screw holding the air duct
to the oven cavity.

16. Remove the air duct from the oven cavity.

17. Remove the two (2) screws holding the power
transformer to the bottom plate.

18. Remove the power transformer.

19. Remove the one touch sleeve from the filament

lead of power transformer. Now, the power trans-

former is free.

CAUTION: WHEN THE POWER

INSTALLED THE ONE TOUCH SLEEVE
MUST BE FITTED IN THE FILAMENT
LEAD OF IT. BECAUSE IT DOES NOT
HAVE ANY ONE TOUCH SLEEVE.

CONTROL PANEL ASSEMBLY AND CONTROL UNIT REMOVAL

The complete control panel should be removed for re-

placement of components. To remove the control
panel, proceed as follows:

1. CARRY OUT 3D CHECKS

2. Remove two(2) screws holding the control panel

to the bottom oven cavity.

3. Pull down the control panel and remove it forward.

4. Disconnect two connectors(A),(B) and

TAB

terminal(TAB1,2,3,4) from the control unit.

Replacement of individual component is as follows:

CONTROL UNIT

1.

Disconnect connector (F) from the control unit.

2.

Disconnect connector (G) from the control unit by

pushing the hooks of cable holder inwardly.

3.

Remove four(4) screws holding the control unit to

the panel frame assembly.

4. Push down the right side two(2) hooks fixing the
control unit to the panel frame assembly, and lift
up the control unit upward.

LED UNIT

1. Remove control unit. (Refer to above control unit)

2. Remove two(2) screws holding the LED unit to the
panel frame assembly.

3. Remove the LED unit upward.

CONTROL PANEL FRAME (WITH KEY)

1. Remove two(2) screws holding the control panel
mounting angle to the panel frame.

2. Lift up the control panel mounting angle from the
panel frame.

CAUTION:
Installing the control panel:

1. Ensure the wiring is correctly dressed when refit­ting the control panel.

2. When installing the control panel , push the panel
upwards prior to firmly tightening the securing
screws under the base plate.

40

R-2380

1.

i:

4.

5.

OVEN LAMP SOCKET REMOVAL

CARRY OUT 3D CHECKS
Remove the oven lamp.
Pull the wire leads from the oven lamp socket by
pushing the terminal hole of the oven lamp socket

with the flat type small screw driver.

Pull the oven lamp socket out of the oven lamp
mounting plate.
Now, the oven lamp socket is free.

Own Iamp so&.,

Flat tyw small
screw driver

\

CAUTION: WHEN REPLACING THE OVEN LAMP

SOCKET, REPLACE IT SO THAT THE
SIDE WHERE THE BLACK DOT IS PUT
FACES OUTWARD.

P

Y

\

Terminal hole

Figure C-2. Oven lamp socket

POWER SUPPLY CO

RD REPLACEMENT

Removal

1. CARRY OUT 3D CHECKS

2. Loosen the two (2) screws holding the brown and
blue wires of the power supply cord to the cord
connector.

3. Loosen the single (1) screw holding the earth an­gle and earth wire of power supply cord.

4. Remove the single (1) screw holding the cord
anchorages to the unit chassis.

5. Remove the power supply cord.

1.

2.

3.

4.

5.

Re-install

Insert the power supply cord into the cord
anchorages.
Insert the brown and blue wires of power supply
cord into the terminals of the cord connector and
tighten the screws (refer Figure C-3)
Insert the green/yellow wire of power supply cord
into the earth angle, and tight the screw holding
the earth angle.
Re-install the cord anchorage(upper) to the noise
filter angle with the one(l) screw.
CARRY OUT 4R CHECKS.

Noise filter angle

Terminal harness

Cord connector

Blue wire

\

Power supply cord

’

Cord anchorage
(Upper)

Cord anchorage (Lower)

Figure C-3. Power supply cord replacement

1.

2.

3.

4.

I

Removal

ONE TOUCH SLEEVE REPLACEMENT

Insert the cabinet screwdriver into the gap of the

ONE TOUCH SLEEVE as shown in the figure.

Break open the ONE TOUCH SLEEVE with the

cabinet screwdriver.

Remove the ONE TOUCH SLEEVE from a recepta-

cle.

Now, the ONE TOUCH SLEEVE is free.

One touch sleeve

Cabinet screw driver

Figure C-4(a) One touch sleeve removal

Figure C-4(b) One touch sl&ve

insulations

Installation

5. Insert a receptacle into an ONE TOUCH SLEEVE
as shown in the figure.

6. Close the covers as shown in the figure.

7. Now, the ONE TOUCH SLEEVE is -installed.

CAUTION: THE ONE TOUCH SLEEVES ARE NOT

REUSEABLE AND MUST BE REPLACED
IF OPENED.

One touch sleeve

eptacle

41

UPPER LATCH SWITCH, LOWER LATCH SWITCH,

MONITOR SWITCH, AND STOP SWITCH REMOVAL

1. CARRY OUT 3D CHECKS.

2. Remove the control panel from the oven cavity re­ferring to “CONTROL PANEL REMOVAL”.

3. Remove the two (2) screws holding the latch hook
to the oven cavity.

4. Open the door and pull the latch hook out of the
oven cavity.

5. For lower latch or Monitor switch removal

5-l. Disconnect the wire leads from the switch.
5-2. Push the retaining tabs outward slightly and then

pull the switch forwards and remove it from the

latch hook.

6. For upper latch and stop switches removal

6-l. Disconnect the wire leads from the upper latch

and stop switches.

i-2. Remove the single (1) screw and nut holding the

1 st latch and stop switches to the latch hook.

CAUTION: WHEN THE UPPER LATCH SWITCH

AND STOP SWITCH ARE INSTALLED,

THE TWO (2) TABS OF THE LATCH
HOOK SHOULD BE BROKEN.

ch hook

/

Switch spring A

/Switch lever A

Monitor switch

Switch lever B

Upper latch switch

Tab

Switch spring B

Switch lever C

Tab

Lower latch switch

Figure C-5. How to remove the switch

42

UPPER LATCH SWITCH, LOWER LATCH SWITCH,

STOP SWITCH AND MONITOR SWITCH ADJUSTMENT

In case upper latch switch, lower latch, stop switch

and monitor switch do not operate properly due to a

mis-adjustment, the following adjustment should be
made.

1. Loosen the two (2) screws holding the latch hook.

2. With the door closed, adjust the latch hook by
moving it back and forward, or up and down. In
and out play of the door allowed by the latch hook

should be less than 0.5 mm.
The vertical position of the latch hook should be

placed where the stop switch and upper and lower
latch switches have activated with the door closed.

The horizontal position of the latch hook should
be placed where the monitor switch has activated
with the doordosed.

3. Secure the screws with washers firmly.

4. Make sure of the upper latch switch, lower latch
switch, stop switch, and monitor switch operation.

If those switches have not activated with the door
closed, loose two (2) screws holding latch hook
and adjust the latch hook position.

After adjustment, make sure of the following:

I. The stop switch and upper and lower latch

switches interrupt the circuit before the door open
when the door release lever is pulled, and then and
monitor switch close the circuit when the door is
opened.

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

Door release _
lever

\.

p

-..-

*

i

L

L

i

\ ‘..

\

Latch head

I

Latch lever

$??Ql-- Monitor

mwF!{;;hh insulator

Lower latch switch

Figure C-6. Latch Switch Adjustments

FUSE M8A Fl, F2. FUSE BSF 13A F3 REMOVAL

I. CARRY OUT 3iJ CHECKS, referring to “OUTER

3. Now, the fuse fl or 2 is free.

CASE CABINET AND REAR CABINET REMOVAL”.

4. Remove the fuse BSF 13A FJ in the fuse holder on

2. Remove the fuse fl or FJ in the fuse holder on the

the noise filter angle, referring to Figure C-6(b).

stirrer duct, referring to Figure C-6(a).

5. Now, the fuse BSF 13A fl is free.

Fl: FUSE M8A

F2: FUSE M8A

\ r

F3: FUSE

Figure C-7(a) Top view without outer case

cabinet

Figure C-7(b) Rear view without rear case cab-

inet

43

DOOR REPLACEMENT

1.

2.

3.

4.

5.

CARRY OUT-Z CHECKS
Remove four (4) screws holding the upper and
lower oven hinge to the oven cavity.
Remove door assembly with upper and lower oven
hinges by pulling it forward.
On re-installing new door assembly, secure the up­per and lower oven hinges with the four (4)
mounting screws to the oven cavity. Make sure the

door is parallel with bottom line of the oven face

plate and the latch head pass through the latch
holes correctly.
CARRY OUT 4R CHECKS

Note:

After any service to the door, the 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 hinges such as in

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

1.

2.

3.

4.

Adjust door latch heads at a position where they
smoothly catch the latch hook through the latch
holes. Refer to latch switch adjustments.

Deviation of the door alignment from horizontal line
of cavity face plate is to be less than 1 .Omm.
The door is positioned with its face depressed to­ward the cavity face plate.

Reinstall outer case and check for microwave
leakage around the door with an approved micro­wave survey meter. (Refer to Microwave Measure
ment Procedure.)

LATCH HEADS

Figure C-8. Door Assembly Replacement

and Adjustment

44

CHOKE COVER REMOVAL

1. Insert an iron plate(thickness of about 0.5mm) or
flat type screw driver to the gap between the choke
cover and door panel as shown figure to free the
engagind part. The protect sheet may be used not
to damage the door panel.

2. Lift up the choke cover, now cove is free.

jL

PROTECT BY TAPE

DOOR REPLACEMENT AND ADJUSTMENT

SCREW.DRIVER

-. -..

OVEN
HINGE

Figure C-9. Choke Cover Removal

DOOR COMPONENTS REMOVAL

Remove the door assembly, referring to from item 1

through item 3 of “DOOR REPLACEMENT”.

1. Place the door assembly on a soft cloth with facing

(“F$R AND LOWER OVEN HINGE REMOVAL)

2. Remove the choke cover, referring to “CHOKE
COVER REMOVAL”.

3. Release the oven hinges from the door panel.

4. Now, the oven hinges are free.

(DOOR HANDLE REMOVAL)

5. Remove the two (2) screws holding the door han­dle to door.

6. Remove the door handle from the door panel.

Terminal

Procedure

Positive lock@
connector

\

KU;;;) AND LOWER LATCH HEADS RE-

7. Remove the door release lever from the door as­sembly.

8. Remove the three (3) screws holding the joint plate
to the door panel.

9. Release the latch spring from the tab of the joint
lever and joint plate.

10. Release the latch heads from joint lever and joint
plate.

11. Now, the latch heads are free.

(DOOR FRAME REMOVAL)

12. Set the four (4) tabs of the door frame upright.

13. Remove the door frame from the door panel. Now,
door frame is free.

(DOOR GLASS REMOVAL)

14. Remove the four (4) screws holding the two (2)
outside window fixing plates to the door panel.

15. Now, the door glass as free.

1. Pushing the lever of positive lock connecotr,

2. Pull down the connector from the terminal.

3. Now, the connector is free.

.

Note: If the positive lock has a insulation sleeve, first

remove it. If you do not so, you can not push
the lever of positive lock .

CAUTION: The positive lock

terminal can not be

disconnected by only pulling. Because

once you (Service personnal) have con­nected the positive lock connector to the

terminal, the positive lock connector has

been locked.

Figure C-10. How to release the positive lock

connector.

EXHAUST COVERS A AND B REMOVAL

(Exhaust cover A)

1. Remove the two (2) LHSTIX screws holding the
exhaust cover A to the rear cabinet, using the spe­cial driver LHSTIX (LR-4).

2. Release the tab of the exhaust cover A from the

hole of the rear cabinet, and remove the exhaust

cover A.

3. Now, the exhaust coverA is free.

(Exhaust cover B)

1. Remove the single (1) LHSTIX screw holding the
exhaust cover B to the rear cabinet, using the spe­cial driver LHSTIX (LR-4).

L&SCREW DRIVER

/

LHSTIX SCREW

(SIZE LA-41

Note: When securing or loosening the LHSTIX screw,

LHSTIX(LR-4) TYPE screw driver should be

used

2. Release the tab of the exhaust cover B from the

hole of the rear cabinet, and remove the exhaust

cover 8.

3. Now, the exhaust cover B is free.

45

MICROWAVE MEASUREMENT

After adjustment of door latch switches, monitor
switch and door are completed individually or collec-

tively, the following leakage test must be performed

with a survey instrument and it must be confirmed that
the result meets the requirements of the performance
standard for microwave oven.

REQUIREMENT

The safety switch must prevent microwave radiation

emission in excess of 5mW/cm2 at any point 5cm or
more from external surface of the oven.

PREPARATION FOR TESTING:

Before beginning the actual test for leakage, proceed

as follows;

1. Make sure that the test instrument is operating
normally as specified in its instruction booklet.

Important:
Survey instruments that comply with the require­ment for instrumentations as prescribed by the per­formance standard for microwave ovens must be
used for testing.

Recommended instruments are:
NARDA 8100
NARDA 8200
HOLADAY HI 1500
SIMPSON 380M

2. Place the oven tray into the oven cavity.

3. Place the load of 275+15ml of water initially at
20+5”C in the centre of the oven tray. The water

container should be a low form of 600 ml beaker
with inside diameter of approx. 8.5cm and made of
an electrically non-conductive material such as
glass or plastic.
The placing of this standard load in the oven is im-

portant not only to protect the oven, but also to in-

sure that any leakage is measured accurately.

4. Close the door and turn the oven ON with the timer
set for several minutes. If the water begins to boil
before the survey is completed, replace it with
275ml of the cool water.

5. Move the probe slowly (not faster that 2.5cm/sec.)
along the gap.

6. The microwave radiation emission should be meas­ured at any point of 5cm or more from the external

surface of the oven.

Microwave leakage measurement at 5 cm distance

46

.-.

TEST DATA AT A GLANCE

Magnetron MG2

Filament winding < 1 R
Filament winding - chassis cc Q

TEST POINTS ON CONTROL UNIT

In/Out put terminal Test point

Volt

Resistance

(Disconnect the power plug

and door is closed)

Input terminal (Power supply) 1 A5- A7

1 240V 1

Approx. 775f2

Output terminal (Stop switch) 1 Bl - B2

I

!

0

Output terminal
(Oven lamp + Blower motor)

Output terminal (Earth)
Output terminal (Thermister)

Al - A7 240V

Approx. 3OQ

Bl- Chassis

0

Bl- 83

DC.5V

Approx.

61.5kn at20’C . . . . . 39.5kn at 30°C

I

WARNING: DISCONNECT THE PLUG WHEN MEASURING RESISTANCE.

47

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1

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3

4

I

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CONTROL PWB

Figure S-3. Printed Wiring Board

H

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51

PARTS LIST

Note :

The voltage supplied to the parts r*n are greater than 250V.

REF. NO. 1 PART NO.

DESCRIPTION

1 cny [CODE

l- 1

l- 2
l- 3
l- 4
l- 5

l- 6
l- 7

l- 8
l- 9
l-10

1-11
l-12
l-13
l-14

l-15
l-16

l-17
l-18
l-19
l-20

l-21
l-22
l-23

l-24 ­1-25 -L

1-26
1-27

ELECTRICAL PARTS

DH-HZA006WRKOIThermistor assemblv
QACCAAO30WREO Power supply cord z
QFSHDA002WREO Fuse holder
QSOCLAOllWREO Oven lamp socket
QFSHDAOO7WREO Fuse holder

QTANNAOOlWREO Cord connector
FFS-TAOOlWRKO TF: Oven temp. fuse 150°C assembly

FMOTEA206WRKO BM: Blower motor assembly
QFS-CAOlOWREO Fl: Fuse M8A
QFS-CAOlOWREO F2: Fuse M8A

RLMPTA029WREO OL: Oven lamp
RR-WZA015WREO Rl: Monitor resistor 0.80 40W
RTHM-A037WREO TCl: MG thermal cut-out 145°C
RTHM-A037WREO TC2:

MG thermal cut-out 145°C

RTHM-A058WREO TC3: Blower motor thermal cut-out 115°C
RTRN-A277WREOlTl: Power transformer

RTRN-A277WREO T2: Power transformer
QSW-MA047WREO SW4: Stop switch
QSW-MA048WREO SW3: Monitor switch
QSW-MAO95WREO SWl: Uooer latch switch

QSW-MA095WREO SW2: --

Lower latch switch
QFS-CA009WREO F3: Fuse BSF 13A
FW-QZA066WRKO H.V. rectifier assemblv with

HVC harness assembly 1

RC-QZA12OWREO Cl: High voltage capacitor
RC-QZA12OWREO C2:

High voltage capacitor
RV-MZA12OWREO MGl: Magnetron
RV-MZA120WREO MG2: Magnetron

CABINET PARTS

-I-

1 AN

AU

2' AE

1 AH
1 AL

1 AF­1 AL

1 BL
1 AE
1 AE

1 AK
1AM
1 AG
1 AG
1 AG

1 AF
1 AF

AF
t AD
1 AW

1 AU

AU
i BG
1 BG

2- 1

PSHEGAOOlWREO Rubber sheet-A

2- 2 PSHEGA002WREO Rubber sheet-B
;I z-1

FFTASA045WRYO Oven lamp access cover assembly, complete

2- 3-2

GFTASA041WRPO Oven lamp access cover

PCUSU0407WRPO Cushion

2- 4 GCABUA292WRPO Outer case cabinet
2- 5 PCUSUA203WRPO Cabinet cushion (20

x 30

x 200)

2- 6 PFILWAOOlWRPO Bottom Plate sheet

A

1
2- 7
2- 8

2- 9
2-10

GCOVAA155WRWO Rear cabinet
GCOVHA219WRYO Exhaust cover B

PCLICAOllWREO Cabinet clip
FCOVHA021WRYO Air exhaust cover A assembly

CONTROL PANEL PARTS

-

3- 1
3- 1A

Control unit (Not replacement item)

3- 1B

QCNCMA078DREO 4-pin connector (A)

3- 1c

QCNCMA13ODREO 5-pin connector (B)

3- 1D

QCNCWA030DREO 12-pin connector (G)
QLUG-OlOHHREO Tab terminal (T-86028)

3- 1E

RV-Y" -

3- 1F

.,732DREO Fluorescent display (FV418G)

Cl

LHLD,-A068WRFO Fluorescent display tube holder

c2

RC-KZA032DREO Capacitor

O.lpF 50V

c3

VCEAB31VW108M Capacitor

1OOOpF 35V

VCEAB31HW335M Capacitor

3.3pF 50V

c4

VCEAB31AW476M Capacitor

C5,6,20,VCKYDllCY103N Capacitor

47vF 1OV

c71

O.OlpF 16V

C7,63,64VCEAB31EW226M Capacitor

C8

22pF 25V

VCEAB31CW107M Capacitor

1OOpF 16V

1

BU

1

AC

1

AC
AF

41 AB
1

AW

AE
t AB
1 AD
1AA

AA

41 AA
3 AA

1

AB

52

R-2380

.,rr+n .

TIT%3 \rrrl+~no c,,nnli,aA +n tlla nrlrt.2 “*” =I0 nlLlP+Dr +han 3ErT\/

.“LT I ,,r ““‘Luy’ ‘“f.spa’” L” 111u p2”‘W “I_ y’“uL” Lll”ll &““I.

REF. NO. PART NO. DESCRIPTION

07-Y CODE

C21,70, VCKYF31HF103Z Capacitor

O.OlpF 50V

3 AA

C72

C80

VCEAB31HW474M Capacitor

0.47pF 50V AA

C81 VCEAB31HW225M Capacitor

2.2ccF_ 5ov :: AA

C82 VCEAB31HW105M Capacitor _.

~I.IF 50V 1AA

CFl RCRS-AOlODREO Ceramic resonator CST4.00MHz

AD

Dl-5,8, VHDMPGOGB//-1 Diode (MPGOGB)

81 AA

D9,70

D7,63-66VSDlSS270A/-1Diode (lSS270A)

,“

15 AA

D81,83,
D84,87,

D88,D93

-97

ICl RH-IZA324DREO LSI (M50941)

1 AW

IC3 VHICAT35102-4 IC (CAT35C102P) 1

AP

QQ210,40

VS2SB793///-4 Transistor (2SB793) AC
VSDTA143ES/lB Transistor (DTA143ES) ; AB

8::

VS2SA1561TL-3 Transistor (2SA1561TL) AA
VS2SB91OMR/-4 Transistor (2SB910M) i AC

Q80

VSDTD143ES/-3 Transistor (DTD143ES) 1 AC

Q81 VSDTA114YS/-3 Transistor (DTA114YS) AB
Q83,84 VSDTB143ES/-3 Transistor (DTB143ES) i AB
R2 VRD-B12EF152J Resistor 1.5kn 1/4W AA
R4 VRD-B12HF751J Resistor

75on 1/2w :: AA

R5,63,64VRD-B12EF102J Resistor

l.OkO 1/4W 4 AA

R80
R6,20 VRD-B12EF153J Resistor 15kO 1/4W 2 AA
R7 VRD-B12HF150J Resistor 150 1/2w AA
R40,73,

VRD-B12EF332J Resistor 3.3kn 1/4W 1: AA

R93-97,

100-103

-.

R41,46 VRD-B12EF203J Resistor 20kfi 1/4W 2 AA
R42,71 VRD-B12EF303J Resistor 30kn 1/4W

2 AA

R43

VRD-B12EF133J Resistor 13kn 1/4W 1AA

R44 VRD-B12EF682J Resistor 6.8kn 1/4W

1AA

R45 VRD-B12EF471J Resistor 47on 1/4w

AA

R47

VRD-B12EF562J Resistor

5.6kR 1/4W

i AA

R61,62 VRN-B12EK162F Resistor 1.6kF!.2 1/4W

AA

R65,66

VRD-B12EF304J Resistor 300kO 1/4W

; AA

R67,68 VRD-B12EF473J Resistor 47kn 1/4W

2 AA

R70

VRD-B12EFlOlJ Resistor loon 1/4w

AA

R72 VRN-B12EK223F Resistor

22KFfl 1/4W i AA

R74

VRN-B12EK302F Resistor 3.0kFO 1/4W

AA

R81 VRD-B12EF271J Resistor 27OfZ 1/4W

4 AA

R200 VRD-B12EFlOSJ Resistor

1Mn 1/4W

1AA

RYl RRLY-A020DREO Relay (OJ-SH-112LM)

AH

RY3,4 RRLY-AO59DREO Relay (VS14MB-NR)

; AM

SPl RALM-A003DREO Buzzer (PS3025PO2)

AF

Tl

RTRNPA062DREO Touch control transformer

i AU

T2,3

RTRN-AOGODREO Current transformer (A0601

2

AH

VRSl

RH-VZAOlODREO Varistor (TNR15G471K)

AE

ZD2 VHEHZlGl///-1Zener diode (HZ16-1).

:: AA

ZD3

VHEHZ4C3///-1 Zener diode (HZ4C-3)

1AA

;I ;

FPNLCA802WRKO Control panel frame assembly with key unit

1

BA

LANGTA243WRWO Control panel mounting angle

1

AF

3- 4 XEPSD30PlOXSO Screw;

control unit mounting

4 AA

3- 5

XEPSD40P12000 Screw:

control panel mounting angle mounting 1AA

3- 6 XHTSD40P08TVO Screw;

decoration panel mounting for earth 1AA

OVEN PARTS

4- 1 FGLSPA021WRYO Ceramic tray

BD

4- 2 FOVN-A196WRYO Oven cavity assembly

i BS

4- 3 PFILWA013WRPO Oven lamp filter

AB

4- 4 MLEVPA153WRFO Switch lever A

:: AC

4- 5 MLEVPA154WRFO Switch lever B

1

AC

;I ;

MLEVPA155WRFO Switch lever C

1

AC

MSPRCA075WREO Switch spring A

AB

4- 8 MSPRCA076WREO Switch spring B

; AB

4- 9 PHOK-A056WRFO Latch hook

1

AH

53

R-2380

I

\I,-.*.3 .

.“LT

ohs ~r~l+~~~ cnnnnlicw-l tn tha nswtc “*” swo nrost~r than 7Wl\/

I ,,.z vv,rcayr a”p~~~“Y L” Llll p,“‘LY

“I” I’““L”. . ..“ll

---..

REF. NO.

PART NO.

DESCRIPTION

4-10

LANGQA25lWRWO Noise filter angle

4-11

LSTPPA048WRFO Cord anchorage (upper)

4-12

LSTPPA049WRFO Cord anchorage (lower)

4-13

FCOVPAO19WRYO Stirrer cover assembly

4-14

FFANMAOllWRYO Stirrer fan assembly

4-15

FFIL-AOO3WRKO Air intake filter assembly

4-16

HDECEAOOlWRPO Decoration sash

4-17

HDECQA146WRMO Corner cap left

4-18

HDECQA147WRMO Corner cap right

4-19 LANGQA250WRPO Oven -lamp mounting plate
4-20

LANGQ0382WRMO Earth angle
4-21 LBNDKA075WRPO Capacitor holder
4-22 PPACGA068WREO HVT packing
4-23 PCOVWA009WRPO Magnetron duct cover
4-24 PCUSGAllOWREO Fan cushion A (2 x 20 x 50)

4-25

PCUSGA27OWRPO Fan cushion B (18 x 12 x 40)

4-26 PCUSGA275WRPO Blm cushion
4-27 PCUSGA289WRPO Rear cabinet cushion
4-28

PCUSUAOSSWRPO Duct cushion

4-29 PCUSUA056WRPO Orifice cushion
4-30

PCUSUA230WRPO Mg duct cushion
4:31 PCUSUA142WRPO Trans. cushion
4-32 PCUSUA200WRPO Cushion
4-33

PCUSUA228WRPO Oven lamp cushion
4-34

PDUC-A379WRFO Exhaust duct
4-35 PDUC-A380WRWO Stirrer duct

4-36 PDUC-A381WRFO Air duct
4-37

PGIDHA038WRPO Air guide A
4-38 PGIDHA039WRPO Air guide B
4-39

PGIDHAO4OWRPO Air guide C
4-40

PCUSUA246WRPO Blower cushion
4-41

FDAI-A123WRTO Base plate
4-42

PCUSGA271WRPO Mg cushion
4-43 PCUSGA272WRPO Mg partation cushion
4-44

PCOVPA221WRPO Stirrer shaft cover
4-45

PCUSGA045WRPO Cushion
4-46

PZETEA043WRPO H.V. insulation sheet
4-47

PSKR-A220WRPO Partition plate
4-48 PZETEA042WRPO H.V. cover
4-49

PZETEA046WRPO Insulation sheet
4-50

PZETEA047WRPO Switch insulator

O’TY

CODI

1

AF

1

AB

1

AB

1

AS

1

AN

1 AV

AR
t AE
1

AE
1 AD

AA
:. AD
2 AC
1

AR
1 AA

2

AB
1

AB
1

AB
1AA
1AA

1

AC

AB

41 AA

AC

1' AL

AV

t AK
1 AD

AD

i AC
1

AD

BB

i AB

AB

: AA

AA

i AD

AD

i AD
1 AC

1

AC

DOOR PARTS

5

DDORFA397WRKO Door assembly, complete

BT

5- 1

FCOVAA041WRYO Door frame

i: BC

5- 2

FDORFA185WRTO Door panel

1

BL

5- 3

FHNDMAOOGWRYO Door release lever

1

AH

5- 4

JHNDMA026WRMO Door handle

1

AT

;I 2

PGID-0024WRF0 Handle guide

4 AC

PGID-0025WRF0 Handle spacer

1

AC

;I;

FANGKA164WRYO Joint plate

1

AH

FLEVFAOlSWRYO Joint lever

AG

5- 9 LSTPCAOOlWRMO Latch head

2' AK

S-10 MLEVPA156WRFO Latch lever

AC

5-11

MSPRCA074WREO Latch spring

:: AB

5-12

GCOVHA217WRFO Choke cover

1AM

5-13

LANGKA454WRPO Outside window fixing plate

2

AD

5-14

MHNG-A215WRMO Upper oven hinge

1 AG

5-15

MHNG-A216WRMO Lower oven hinge

AG

5-16

PCUSGA057WRPO Handle cushion

i AA

5-17

PCUSGA276WRPO Door glass cushion

2 AC

5-18

PGLSPA254WREO Door glass

AV

5-19

PSHEPA325WREO Inside film

i AE

c-c)fl TlrTTn7-x 73c /TT.n-,nn T-t--- ^_I^ --L.--L _1 I-

J-L”

,r3rmr~3~~wIw”,LJ”“L

L;Qbtz bllCt!L

1 I IArl

54

R-2380

Note :

The voltage supplied to the parts ‘I*” are greater than 250V.

REF. NO. ( PART NO.

I

DESCRIPTION 1 Q’TY /CODE

MISCELLANEOUS

6- 1

TINSEA512WRRO

Instruction book

6- 2

TLABHA019WRRO

Memory sticker

; AH

AD

6- 3

FW-VZA938WREO

Switch harness

AE

6- 4

FW-VZA903WREO

Main harness

::

AZ

6- 5

TLABSAO15WRRO

Fuse label 13A

1 AE

6- 6

LBNDK0012YBEO Wire holder (WH-1 L 84mm)

1AA

zr ;

TSPCNB327WRRO Name plate

AD

VTG05003050EO Glass tube

41 AA

6- 9

TCAUHO114WRRO

Caution label

1 AD

6-10

TLABSAO18WRRO

Fuse label 8A

2 AB

6-11 LHLDWAOO4BDEO Purse lock with snap

1 AB

6-12

PZET-AOllWREO

Terminal insulator

2 AA

6-13

LANGKA453WRPO

Mounting plate

1 AE

6-14 LHLDW0017YBEO Space clip

1AA

6-15

HBDGCA024WREO

Door badge

1 AG

7- 1
7- 2
7- 3
7- 4
7- 5

7- 6
7- 7
7- 8
7- 9

7-10
7-11

7-12
7-13
7-14
7-15

7-16
7-17
7-18
7-19
7-20

7-21
7-22
7-23
7-24

SCREWS, NUT AND WASHERS

XFPSD40P08KOO Screw 4mm x 8mm
XHTSD40P08RVO Screw 4mm x 8mm
XHBSD30P18000 Screw 3mm x 18mm
XWWSD50-06000 Washer 5mm x 0.6mm
XFPSD40P20000 Screw 4mm x 20mm

LX-CZA038WREO Special screw
LX-EZAOO4WREO Special screw
XBPSD5OP12KSO Machine screw
XCPSD30P06000 Screw 3mm x 6mm
XBPSD30P28KSO Screw 3mm x 28mm

XFPSD40P08000 Screw 4mm x 8mm
XOTSF40P12000 Screw 4mm x 12mm
LX-CZAO29WREO LHSTIX Screw (LHSTIXLR-4)
XJPSD40PlOOOO Screw 4mm x 1Omm
XONSC40PlOOOO Screw 4mm xm 1Omm

XFPSD30PlOOOO Screw 3mm x 1Omm
XOTSC40P12000 Screw 4mm x 12mm
XOTSD40P12000 Screw 4mm x 12mm
XEPSD30P12XOO Screw 3mm x 12mm
XNESD30-24000 Nut 3mm x 2.4mm

XOTSD40P12RVO Screw 4mm x 12mm
XBPSD40PlOKOO Screw 4mm x 1Omm
XWVSD40-04000 Washer 4mm x 0.4mm
XFTSD40P12000 Screw 4mm x 12mm

5
7

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2

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2
1

:
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5

1;

2
1

;
6
2

HOW TO ORDER REPLACEMENT PARTS

To have your order filled promptly and correctly, please furnish the following information.

1. MODEL NUMBER

2. REF. NO.

3. PART NO.

4. DESCRIPTION

55

AA
AA
AA
AA
AB

AA

AA

AB

AA
AA

AA
AA
AB
AA
AA

AA

AB

AA
AA
AA

AB
AA
AA
AA

R-2380

1

A

B

C

D

E

F

G

i

H

1

2

3

4

5

6

CABINET AND UNIT CHASSIS PARTS

1

2

3

4

5

6

56

-

A

B

C

D

E

F

G

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1

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6

CONTROL PANEL PARTS

D

3-2

DOOR PARTS

/

/

/

/

/

/

1

2

3

4

5

6

57

1

2

3

4

5 6

MISCELLANEOUS

+I+ Actual wire harness is different than illustration.

PACKING

MOUNTING PLATE

LANGKA453WRPO

TRAY HOLDER

+SPADFA3lAWRFO

,\

DOOR

PROTECTION SHEET
%SPADP0336WREO

I

DOOR PAD

%SPADF0341 WREO

\

PACKING CASE
sSPAKCB520WREO

PRINTING MATTER

/

INSTRUCTION BOOK /

+!+ --- Not Replacement Items

.

1

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2

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3

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4

I

5

I

6

-I

A

a

C

D

E

F

G

J

H

i

‘90 0 SHARP CORP. (5K0.62E) Printed in Australia

.

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