Sanyo EM810FS Service Manual

\&.

SERVICE MANUAL Microwave Oven

Si

o

Eh/!81OFS (Nemm.land)

Jan 201992

‘L-

I

Product Code No.

432-326-51

Foreword

Read

this manual carefully, especially precaution on microwave energy,. and follow the prctedure strictly. Careless servicing and

testing may expose yourself to the microwave energy leakage.

PRECAUTIONS

PRECAUTIONS TO BE OBSERVED BEFORE AND DURING SERVICING TO AVOID POSSIBLE EXPOSURE TO EX­CESSIVE MICROWAVE ENERGY

L

REFERENCE NO. WM-640 207

(a)
(b)

(c)

(d)

Do not operate or allow the oven to be operated with the door open.
Make the following safety checks on all ovens to be serviced before activating the magnetron or other microwave source,
and make repairs as necessary:

(1) Interlock operation, (2) proper door closing,

(3) seal and sealing surfaces (arcing, wear, and other damage), (4)

damage to or loosening of hinges and latches,

(5) evidence of dropping or abuse.

Before turning on microwave power for any service test or inspection within the microwave generating compartments,
check the magnetron, wave guide or transmission line,

and cavity for proper alignment.

integrity, and connections.

Any defective or misadjusted components

in the interlock, monitor, door seal, and microwave generation and trans.

mission systems shall be repaired, replaced, or adjusted by procedures described in this manual before the oven is released
to the owner.

– TABLE OF CONTENTS –

Adjustment Procedures ..:.... . . . . . . . . . . . . . . . 1

Test Procedures and Troubleshooting . . . . . . . . . 4-10

Specifications . . . . . . . . . . . . . . . . . . . . . . . . . ...2

Disassembly Instructions . . . . . . . . . . . . . . . . . 11-14

Power Output Measurement . . . . . . . . . . . . . . . . . . . 2

Exploded View and Parts List . . . . . . . . . . . . . 15-21J

\

Precautions and Repair Service Tips . . . . . . . . . . 2

Overall Circuit Diagram . . . . . . . . . . . . . . . . . .

21

Circuit Diagram . . . . . . . . . . . . . . . . . . . . . . . . ...3

,

-

CAUTION

MICROWAVE RADIATION

PERSONNEL SHOULD NOT BE EXPOSED TO THE
MiCROWAVE ENERGY WHICH MAY RADIATE

FROM THE MAGNETRON OR OTHER MICRO-

WAVE GENERATING DEVICE IF IT IS impro-

perly USED OR CONNECTED. ALL INPUT AND
OUTPUT MICROWAVE CONNECTIONS, WAVE­GUIDES, FLANGES, AND GASKETS MUST BE
SECURE. NEVER OPERATE THE DEVICE WITH­OUT A MICROWAVE ENERGY ABSORBING

LOAD ATTACHED. NEVER LOOK INTO AN
OPEN WAVEGUIDE OR ANTENNA WHILE THE
DEVICE IS ENERGIZED.

1.

ADJUSTMENT PROCEDURES

TO AVOID POSSIBLE EXPOSURE TO MICROWAVE

ENERGY LEAKAGE, THE FOLLOWING ADJUST­MENT OF THE INTERLOCK SWITCHES SHOULD BE
MADE ONLY BY AUTHORIZED SERVICE PERSON-

NEL.

PRIMARY

INTERLOCK SWITCH,

INTERLOCK
MONITOR SWITCH AND DOOR SENSING SWITCH
ADJUSTMENT

(Figure 1)

(1)

(2)

(

‘-

(3)

(4)

(5)

(6)

Loosen 2 screws securing the lever stopper.
Adjust the lever stopper position so that it is pushed
forward and pull backward until there is about zero
gap between the latch lever and the switch body
on the primary interlock switch and at the same
time there is about zero gap between the door latch
and the switch body on the door sensing switch
when the door latch is securely locked.

Tighten the lever stopper screws securely.

Make sure the interlock monitor switch closes after

the primary interlock switch opens when the door

is opened very slowly, according to “CHECKOUT

PROCEDURE FOR SWITCHES” on page 6.

Make sure the interlock monitor switch opens

before the primary interlock switch closes when the

door is closed very slowly, according to “CHECK-

OUT PROCEDURE FOR SWITCHES” on page 6.

Make sure the microwave energy leakage is below

the limit of the regulations (5mW/cm2 ) when

measured with a detector.

(All service adjustments must be made for minimum

micro wave energy leakage readings. )

NOTE: If the interlock monitor circuit operates and at

the same time the fuse blows with the door
opened, be sure to replace the control circuit
board, because relay 2 on the control circuit
board, the door sensing switch and the electric
circuit related on the door sensing switch,
which act as Secondary Interlock Switch.

Door
Latch

top

lper

Door
Sensing
Switch

Interlock
Monitor
Switch

Interlock
Switch

Figure 1

–l-

2. SPECIFICATIONS

Rated Power Consumption

Microwave Output . . . . .

Frequency . . . . . . . . . . .

Power Supply . . . . . . . .

Rated Current . . . . . . . .

Safety Devices . . . . . . . .

Timer . . . . . . . . . . . . . .

. . .
. . .

. . .
. . .
. . .

. . .

. . .

Overall Dimensions . . . . . . . .

Oven Cavity Size . . . . . . . . .

Turn Table Diameter . . . . . . .

Net Weight . . . . . . . . . . . . .

1,200W

800W

(Adjustable 175W through
800W)

2,450 MHz * 50 MHz

230- 240 V50HZ

6.0 Amp.
Thermal Protector for Cav-

ity, OPen at 122°C Ther.
mal Protector for magne-

tron, Open at 135° C Fuse

(Cartridge Type 8A) Pri-

mary

Interlock Switch

Door Sensing Switch and

Relay 2 interlock Monitor

Switch

Electronic Digital, up to
99 rein, 99 sec.
550(W)

X 453(D) x309(H)

mm
575(W)

X 404(0) X 237(H)

mm
360mm
Approx. 20.Okg

3. POWER OUTPUT MEASUREMENT

(1) Prepare 1000~5g tap water.
(2) Adjust water temperature to 10°*20C.
(3) Pour water into a container made of borosilicate

glass, 190mm outer diameter cylinder, maximum
3mm thickness.
Note: Use the container kept on the room temper-

ature.
(4) Place the container in the center of oven cavity.
(5) Set the heating time for 52 seconds and rating full

power and then Start oven.

(6) Take the container out immediately when heating

time is up.

(7) Stir water for making even water temperature in the

container.

(8) Measure water temperature.

Water temperature rise shall be 8° to 12“C.

4. PRECAUTIONS AND REPAIR SERVICE TIPS

PRELIMINARY

A. SINCE NEARLY 4,000 VOLTS EXISTS IN SOME

CIRCUITS OF THIS MICROWAVE OVEN, REPAIRS
SHOULD BE CARRIED OUT WITH GREAT CARE.

B. TO AVOID POSSIBLE EXPOSURE TO MICROWAVE

ENERGY LEAKAGE,

THE FOLLOWING PRE-

CAUTIONS MUST BE TAKEN BEFORE SERVICING.

(1)

(a)

(b)

(2)

(a)

(b)

Before the power is applied:
Open and close door serveral times to make sure the
primary interlock switch, the interlock monitor
switch and the door sensing switch operate proper­ly. (Listen for the clicking sound from the switches. )
Make sure the interlock monitor switch closes after
the primary interlock switch is opens when the door
is opened.
(See pages 1 and 6)
Make sure the perforated screen and the choke di­electric of the door are correctly mounted.

After the power is applied:
Open and close the door to see if the interlock
mechanism operates properly.

Check microwave energy leakage with a leakage

(3)

(a)
(b)
(c)

(d)

(e)

(f)

(4)

(a)

detector and confirm the energy leakage is below 5
mW/cm2 ).

Do not operate the unit until it is completely repair­ed, if any of the following conditions exists.

Door does not close firmly against the cavity front.

The hinge is broken.

The door ferrite rubber or the door seal is damaged.

The door is bent or warped, or there is any other

visible damage to the oven that may cause micro­wave energy leakage.
Make sure that there are no defective parts in the

interlock mechanism.

Make sure there are no defective parts in the micro­wave generating and transmission assembly. (espe­cially waveguide).

--

Following items should be checked after the unit is

repaired.

The interlock monitor switch is connected correctly

and firmly.

(b) The magnetron gasket on the magnetron is properly

positioned.

(c) Waveguide and oven cavity are intact (no leakage of

microwave energy).

(d) The door can be properly closed and the safety

switches work properly.

(e) The oven must be stopped when the door is opened

or the time is up.

The oven must not be operated with any of the above
components removed or bypassed.

–2–

POWER SUPPLY

0

=

-1

P h

r-

FUSE I

I

8A(T) I

L–+

:

@;

I

w

I

THERMAL PROTECTOR
FOR CAVITY OPEN 122i6°C

~~ (

65011H I

LB

I

r

‘h

n

5. CIRCUIT DIAGRAM

THERMAL PROTECTOR

1

FOR MAGNETRON OPEN

135!5°C

BK

w

w

BK

GEAR MOTOR I

-1-

W

:OM

I

Uo

w

BLOWER MOTOR

r-t’-

HIGH VOLTAGE TRANSFORMER

~_–—

——__ ____ ____

1

.——

1

w

la

● .

i

Bk

I

I

—

!llV

~

r-- ——-. —____

~ :~NNECTOR ,

2

11

RELAY 2 (

~––T

I

j: yRELAy~%@

CONNECTOR

I

———

I

I

I

r

/

--————

n

I

El”

/

I
I

-1

——————

&J

R

MAGNETRON

-

h i,

la

RELAY 1

S102 ‘
STEP DOWN
TRANSFORMER

~——–.~ I
10

@

I

CONTROL

III

CIRCUIT

;

/

/

BOARD
I
I
I

c

I

CONNECTOR

TOUCH

/

●1

Slol

KEY
BOARD

/
i-

L–––—J

———- ———— ———— ———

-1

HIGH VOLTAGE
DIODE

❑

Notes: The sign ~ -

•1

The parts marked with ~ are supplied
high voltage which is exceeded 250V.

WIRING COLOR

BK :

BLACK

‘BR: BROWN

The sign @ -

w

: WHITE

GY :

GRAY

o

: ORANGE

BL :

BLUE

R

: RED

The parts marked with @ have special
characteristics important for microwave
leakage. When replacing any of these parts
use only manufacturer’s specified parts.

Figure 2

–3–

6. TEST PROCEDURES AND TROUBLESHOOTING

Filament Windings

/

CAUTION

- DISCONNECT THE POWER SUPPLY CORD
FROM THE WALL OUTLET WHENEVER RE-

MOVING THE CABINET FROM THE UNIT, PRO­CEED WITH THE TESTS ONLY AFTER DIS­CHARGING THE HIGH VOLTAGE CAPACITOR
AND REMOVING THE LEAD WIRES FROM THE
PRIMARY WINDING OF THE HIGH VOLTAGE
TRANSFORMER. (SEE FIGURE 3)

A.TEST PROCEDURES

Figure 3

–4–

w

COMPONENT

CHECKOUTPROCEDURE

RESULT

Measure the resistance: Across two terminals

Normal reading:

with an ohm-meter on highest scale.

Momentarily indicates several ohms, and
gradually returns to 10 meg-ohms.

Abnormal reading:

HIGH-VOLTAGE

Indicates continuity or 10 meg-ohms from

CAPACITOR

Wm

the beginning.

including
BLEEDER

ohm-meter

a

RESISTOR

Figure 7

Measure the resistance. Across two terminals

Normal reading:

with an ohm-meter on R x 10,000 scale. Indicates about the middle position in one

direction (forward direction) and infinite
ohms in the reverse direction, using meter

H

which is provided with a 9-volt battery.

ohm-meter

NOTE

HIGH-VOLTAGE

‘L

– Some digital meter may show over even

DIODE

~e” 0

in a forward direction because low measur­ing voltage of meter does not allow the
meter current to pass through the high
voltage diode.

Figure 8

Abnormal reading:

Indicates continuity or infinite ohms in both

directions.

Measure the resistance: Across two terminals

Normal reading:

with an ohmmeter on highest scale.

Indicates infinite ohms in both directions.

‘ad

Abnormal reading:

Ohm-meter

Indicates continuity in both directions or

FUSE DIODE

continuity in one direction and

infinite

,< /- —-,

ohms in reversed direction.

/ ‘,-.//

Am

/

/

Figure 9

Measure the voltage: Between test points
TP-1, TP-2 or TP-3 and ground or between

7

TP-4 and TP-5. (See control circuit board on

Test

TP- 1

TP-2

TP-3

TP-41

Point

TP-5

page 19)

CONTROL

-5V

-12V

–30V

2.OV

CIRCUIT BOARD

NOTE

Voltage DC

Dc Dc

AC

i

Proceed with the check of the step-down
transformer, to see if any one of the measur­ed values is different from the specified
values.

–5–

CHECKOUT PROCEDURE FOR SWITCHES

Disconnect the lead wires from the switches and check for the continuity of the switches connecting an ohmmeter to its termi­nals.

SWITCHES

(See Figure 1 on page 1)

CHECKOUT PROCEDURES

DOOR OPEN

DOOR CLOSED

Primary Interlock

Term\nals “COM” and “NO”

Door Sensing

o a

Interlock Monitor

Terminals “COM” and “NC”

Q Q,

CAUTION: After checking the switches, make sure that the interlock monitor switch is properly connected according to the

CIRCUIT DIAGRAM on page 3.

–6–

B. TROUBLESHOOTING

STEP

SEQUENCE

RESULT

1)

PROBLEM

I

I
1

~odlsplayor misdisplay In
,hedtisplay wtndowby touch

ng the keys.

I

I

al

Check 120 VAC power supply
through fuse (1 5A).
thermal Protector for cavity

I

o

I

O 240

@

,,,

?

I

I

dgij)

I

o

volt

Check continuity of fuse

Replace it

I

Runs

thermal protector for

If necessary.

I

cavity, thermal protector

I

for magnetron and AC Power

I
I

cord. If the fuse is below.

I

See “F. REMOVING

I

FUSE” on page 13.

I

,

i~

PROBLEM

and thermal protector for ma-

1

l-b

l}

—

gnetron.

240 volt

i
I
1

I

b

I

Control

clrcult board

}

Check power supply voltage
on control clrcull board

(See page 5)

Touch key board

1

000
000 “
000

Each voltage

Check resistance of

OK

touch key board.
(See page 6)

i

($)

1

I,’”
I

‘@

I

Each resistance Correct sealing of

Normal control I Runs

OK connector S101 or

circuit board

I

replace control

:

circuit board.

I
I
I

I

b,

@

❑00

1#

‘ 000

000

‘@)

I
I

Resistance

Replace touch key

Normal touch

I
I

Runs

Incorrect board.

key board

I

(ON or OFF)

I
i
I

STEP

SEQUENCE

RESULT

I

+

!) PROBLEM

ooking operation will not
art.

a

CHECK: 1. Power Supply to Oven

2. Primary Interlock Switch

3. Thermal Protector for Magnetron
and thermal protector for cayity.

r@H?-

Door sensing switch

I

Continuity

Check contact

(-) , OK

of connector
S102.

—

I
I
I
I
I
I

al

i

I PROBLEM

3-a

I

Contact

I

I

OK

I
1
I
I
I
I
1

iitz

-m’—@–m

I

I

J@

Check continuity of con­nector S102 between Pins

Correct

I

Poor

Normal

(O and BL) with the door

contact

seating. contact

closed after removing
connector S102 from
control circuit board.

@ ~–> $J

No

Adjust or replace

Normal door

I

Runs

continuity

door sensing switch.

sensing switch

i

(See page 1)

I
,

[3) PROBLEM
Oven does not heat up.

I

I

I
I

Fe

I PROBLEM

I

3b

I

o-l

AC 240 Volts

v

I
I
I

I

I
I

Touch START key and

Lo

i

measure voltage between

()

240

@

I

white wire lead and black.

f

i
I

wire lead for primary

I

winding of H.V. trans-

0 volts

Replace control

Normal control I

Runs

former-after removin~

circuit board.

the wire leads from

circuit board 1

I

terminals of H.V. trans-

1

former

I

-

I
I

I

Y’

(

(

STEP

SEQUENCE

RESULT

I

1

-J

b

H.V. transformer

Check resistance of
each winding after
removing lead wires,
(See page 4).

~

Resistance

Check H. V. capacitor or H.V.diode

OK

with an ohm-meter after removing
Ieadwlres, (!3ee Page5)

@ f$+-(g)

Normal H.V,

Replace

Normal

I
I

R;ns

capacitor or

magnetron.

magnetron. ,

H.V, diode

I

Defective

Replace H.V. Normal H.V. ~

Runs

H.V. capacitor or

capacitor or

capacitor or

H.V. diode

I

e

H.V. diode. H.V. diode I

@

1.’”.

I

‘@
I

Resistance

Replace H.V.

Normal H.V.

i

Runs

Incorrect.

transformer.

transformer

I
I

,4) PROBLEM

1

Low microwave power

I
I

)Utput,

1 A

I
I pROBLEM

-1

a

$iii?+

Normal

.,. operation

Check operallon of
blower mo!or when
START key IS
~ouched

@-M-

No

operation

Temporarily short
across terminals
of thermal protectc
for magnetron and
thermal protector

for cavity by using
jumper lead.

-Q)+)-= ;.

I
I

I

6

Normal Replace thermal
operation protector for

magnetron and
thermal protector

for cavity.

No

Measure resistance

operation

of blower motor
Approx. 215 ohms.

Normal thermal

I=&

protector for

I
I

magnetron and thermal protector for cavity.

I

Reisstance

Replace blower

incorrect.

motor.

Normal blower ~

Runs

motor.

I

I

I

i

@

I .“/

I

@

I

Normal Replace control Normal contrcl ~

Runs

resistance circuit board.

circuit board. I

I

“2

$

w

K

1

(

I

(

I

>

x

L

B!ln

1

m

I

---

---- ----

—------

-----

m

–lo–

7. DISASSEMBLY INSTRUCTIONS

● OVEN MUST BE DISCONNECTED FROM ELECT-

RICAL OUTLET WHEN MAKING REPLACEMENTS,

REPAIRS,

ADJUSTMENTS AND CONTINUITY

CHECKS BEFORE PROCEEDING WITH ANY RE-

REPAIR WORK AFTER DISCONNECTING. WAIT AT
LEAST 1 MINUTE, UNTIL THE CAPACITOR IN THE
HIGH-VOLTAGE AREA HAS FULLY DISCHARGED.

● WHEN REPLACING ANY DOOR MI CR OSWITCH,

REPLACE WITH THE SAME TYPE SWITCH SPECIFl­ED ON THE PARTS LIST.

A. REMOVING DOOR SENSING SWITCH

(Figures 1 on page 1, n-a)

(1) Disconnect all wire leads from the door sensing

switch. (Figure 1 on page 1)
(2) Remove 2 screws securing the lever stopper.
(3) Push the door sensing switch upward while pressing

adjacent upper switch stopper of lever stopper and

lower switch stopper down (Figure 1 l-a).

(4) Then remove it by lightly pressing the switch to-

ward you. (Figure 1 l-a).

(5) Make necessary adjustments or replacements of the

door sensing switch by reversing step (3) and check

microwave energy leakage according to “ 1. AD­JUSTMENT PROCEDURES” on page 1, after it is
replaced with new one, and check proper operation
of it according to “CHECKOUT PROCEDURE

FOR SWITCHES” on page 6.

1

\-

DOOR
SENSING
SWITCH -

Upper
Switch
Stopper

Lower’
Switch
Stopper’

Figure Ii-a

B. REMOVING PRIMARY INTERLOCK SWITCH AND

INTERLOCK MONITOR SWITCH
(See

Figure 1l-b).

(1) Disconnect all wire leads from primary interlock

and interlock monitor switch.

(2) pull the primary interlock switch or interlock

monitor switch upward at the same time while
pushing the switch stoppens to allow a space be­tween the switch body and catches.

(3) Make necessary adjustments or replacement of

switch by the reversing step (2) and check micro­wave energy leakage according to “ 1. ADJUST­MENT PROCEDURES” on page 1, after it is re­placed with new one, and check proper operation
of it according to

“CHECKOUT PROCEDURE

FOR SWITCHES” on page 6.

Switch Stoppers

JI

c

Interlock
Monitor

- Switch

Primary

%$ 1[ switch

Interlock

Switch stoppers

Figure Ii-b

Interlock Switch Replacement – when replacing
faulty switches, be sure switch mounting tabs arc not
bent, broken or otherwise deficient in their ability
to secure the switches in place.

–11–

—:

C. REMOVING BLOWER MOTOR

(Figures 12 (ToP View) and 13)

(1) Remove screw securing the stay.

(2) Disconnect all lead wires from the blower motor

and H.V. capacitor,

(3) Remove 2 screws securing the blower base and

disengage 3 hooks from the rear plate of cavity

(Figure 12).

(4) Remove 1 screw securering the blower motor with

the blower base.

D. REMOVING MAGNETRON

(Figure 11 (ToP View))

After removing the blower motor:
(1) Remove duct (msg. intake) and duct (msg. exhaust).

(2) Remove 2 screws securing the thermal protector.
(3) Disconnect 2 lead wires from the magnetron.
(4) Remove 3 screws securing the magnetron to the

waveguide.

(5) Take out magnetron VERY CAREFULLY’

NOTES

- When removing the magnetron, make sure that
its dome does not hit any adjacent parts, or it may
be damaged.

- When replacing the magnetron, be sure to install
the magnetron gasket in the correct position and be

sure that the gasket is in good condition.

– After replacthg the magnetron, check for micro­wave energy leakage with a leakage detector.
Microwave energy leakage must be below the limit
of 5 mW/cm2.

Duct (msg. exhaust)

Blower base

\ I

Stay

Duct (msg. intake)

Figure 12 (Top View)

Screw

\

ks

Blower Motor

v

Screws

Figure13

–12–

E. REMOVING FUSE

Remove the 8A fuse with a screwdriver.

NOTES

– When replacing the 8A fuse, be
exact repair part.

sure to use an

– If the 8A fuse blows immediately, check the

primary interlock switch, the relay 2 (on the control
circuit board) and the interlock monitor switch
according to

“CHECKOUT PROCEDURE FOR
SWITCHES” on page 6. And make sure to check the
microwave energy leakage according to “1. AD­JUSTMENT PROCEDURES” on page 1, when the
primary interlock switch, the relay 2 or the inter­lock monitor switch is adjusted or replaced.
– If the primary interlock switch, the relay 2 and
the interlock monitor switch operate properly,

determine which of the followings is defective:
control circuit board, blower motor, gear motor,
high voltage transformer, high voltage capacitor,

high voltage diode or magnetron.

– If the high voltage diode is defective, replace not
only the high voltage diode but also the fuse diode.

F. REMOVING CONTROL CIRCUIT BOARD

(See exploded view on page 18 and Figure 14)

(1)

(2)

(3)

(4)

(5)

Remove the connector S1, S102 and the connector

for the relay 2 from the control circuit board.

Remove 1 screw securing the control panel com-

plete to the oven cavity.

Remove the FPC connector from the connector

S101 while grasping up both lever ends of the
plastic fastener.

Remove 2 screws securing the control circuit board

to the control base.

Lift up the control circuit board from its lower side

and take it out from the control base.

-

G. REMOVING TOUCH KEY BOARD

(Figure 15)

After removing the control circuit board;
(1) Remove control base while lifting it up at the right

side and take it out from the control frame.

(2) Remove control sheet which is glued to touch key

board.

(3) Remove the touch key board which is held on the

control base bracket with the adhesive tape.

Con

Control Base

Control Frame

Figure 14

trol Sheet

Touch

Key Board

Figure 15

–13–

H. REMOVING DOOR

J.

REMOVING STIRRER FAN

(1) Remove 2 hex nuts securing the upper hinge.
(2) Tilt the top of the door toward you.

(3) Lift up the door to remove it.

NOTES

—

After replacing the door, be sure to check that
the primary interlock switch, the door sensing
switch and, the interlock monitor switch operate
normally. (See page 1 )

—

After replacing the door, check for microwave
energy leakage with a leakage detector. Microwave
energy leakage must be below the limit of 5 mW/
cm2.

DISASSEMBLING DOOR
(Figure 15)

(1)

(2)

(3)

(4)

Insert a thin flat-blade

choke dielectric and the
up the choke dielectric
one. (Figure 16)

screwdriver between the
door main frame and lift
to release hooks one by

Remove the choke dielectric.

To detach the door cover, Insert a thin flat-blade
screwdriver between door cover and the door panel
and release the projections inside door cover.
To detach the door Panel, Insert a thin flat-blade
screwdriver between the door cover and door main
frame.

Hooks

NOTES

The choke dielectric may be

damaged when it is

removed. When reinstalling it replace it with new

ones if they are damaged.
—

After installing the door in place, check for
microwave energy leakage with a leakage detector.
Microwave energy leakage must be below the limit

of 5 mW/cm2.

(Figure 17)

(1) Release the 3 hooks of stirrer cover while pushing

them downward at the front of the cavity top.

(2) Remove the stirrer cover from the hooks at the rear

side of the cavity top pulling it toward you.

Stirrer A’ssy

/

o

II

Stirrer Cover

Figure 17

K. REMOVING TURNTABLE MOTOR COVER

(Figure 18)

(1)

(2)

(3)

(4)

Turn over the oven on its back.
Cut the 6-joints of the bottom plate using diagonal
pliers (nipper).
Separate the motor cover from bottom plate.

Remove 2 screws securing turntable motor to the
cavity and take it out.
Note: Bent the cut joints inside slightly for safety

and be careful of sharp edge.

Motor Cover

6 Joints

I

Bottom Plate

Figure 18

–14–

8. EXPLODED VIEW AND PART LIST

CAVITY PARTS

Key
No.

1

2

3

4
5

6

7

8
9

10

● ☛☛

11

~\

t

2

6

ALL SERVICE ON MICROWAVE OVENS SHOULD BE PERFORMED BY A QUALIFIED TECHNICIAN

USING APPROVED TESTING EQUIPMENT. CUSTOMERS SHOULD NOT ATTEMPT TO REPLACE PARTS
IDENTIFIED BY ATRIPLE ASTER ISK(***)

—

Part No.

6171246377

411 0825201
4110854102

6171307450
6171246391
6170561600
4110110802

6171240795
411 0892500
6171305616

Desmiptiorr

Cabinet (Also order Circuit Diagram-

when replacing Cabinet. )
Screw, Truss Hd. Tapping, 4 x 10mm

Lockwasher, External Tooth,
4mm, U
Oven Cavity”

● ‘

(Not service Part)

Bottom Plate’

● ●

Plastic Foot with Canoe Clip

Bolt, Hex. Hd. Machine with Spring
Washer & Bolt Washer, 5 x 14mm,

~, . . .
Hinge Lower* ‘“

Washer, 5mm, U
Gear Motor

Q’ty

1

10

2

1
1

4

2

1
1
1

Key

No.

11
12
13
14
15
16

17
18
19
20
21

●

.

Part No.

411 001 4704

6171147162
6171242416
6171098372
411 0076900

6171241235
6171307481
6171265484
6171208481
6171325720
6171419887
6171385090

Description

Screw TPG Pan 4 x 10mm

Turn Table Shaft
Roller
Rotating Tray
Screw, Pan Hal., Tapping, 3 x 6mm,
C2-2
Thermostat, Cavity 122C
Stirrer Cover
Stirrer A’ssy

Insulation Sheet

Insulation Sheet
Name plate
Circuit Diagram

rl’ty

2

1
1
1
1

1
1
1
1
1

1
1

* Items not illustrated.

15

SWITCHES AND MICROWAVE PARTS

~,...

1

.N%l ‘“

Notes:

10

/

The parts marked wirh ~ are supplied

~

h!gh voltay wh,ch is exceeded ZSOV.

13--W ,/

The

parts marked wish @ ha.e speed

1

charamersstm important fw mtcrowave
leakage. When replacing any of these paru
US8 only manufacturer’s swcified X5.

● ** ALL SERVICE ON MICROWAVE OVENS SHOULD BE PERFORMED BY A QUALIFIED TECHNICIAN

USING APPROVED TESTING EQUIPMENT. CUSTOMERS SHOULD NOT ATTEMPT TO REPLACE PARTS
IDENTIFIED BY A TRIPLE ASTERISK***)

<ey

Part No.

Description

Q’ty

No.

1

4110825201

Screw, Truss Hd. Tapping, 4 x 10mm

5

2

6171305661

Power Supply Cord Complete

1

3

6171306941

High Voltage Transformer,

1

H5T-800SAP

4 6171289718

Duct, Msg. Inlet

1

5

6171246582

Stay, Cavity & Magnetron

1

6 411 0076900

Screw, Pan Hd. Tapping, 2
3 x

6mm C2-2

7

6171241259

Thermostat, Magnetron, 135C0 1

8 4150019301

Magnetron, 2M218H(N)*”0

1

9 1111111111

Fuse, 250V 8A

1

10 6171414042

P.C.B Complete

1

11

6171170023 Lead Wire Ass’y with Diode

1

12 6171315868

Laed Wire Ass’Y {Transformer to

1

Capacitor)

13

6171241334

Capacitor Band

1

14

6J7 1306934

High Voltage Capacitor including

1

Resistor, 0.97uf 2.4KV

15

6171241082

Space partition (Blower)

1

16

6171306927

Blower Motor

1

17

411 0772109

Scrm, Truss Hd. Tapping,

2

4x20mm, Z1-1

18

6170751179

Blower Fan

1

Key

Part No.

No.

Description

Q’ty

19

411 011 5609 Bolt HEX C-SCT4

X 20

3

20

6171241075 Duct, Msg. Exhaust

1

21

6171103618

Lamp, 240V 25W

1

22

6171241280

Lamp Socket

1

23 6171241181 Latch Lever*’*

1

24

6171242294

Micro Switch, Primary Interlock

1

V-5130D***

25

6170045575

Micro Switch, Interlock Monitor

1

V-5220 DZ’*’

26

6171124583

Micro Switch, Door Sensing

1

V-523 D-103***

27 6171241174

Lever Stopper***

1

28

6171241198

btch Lever”*” 1

29

411 1102608

Screw, Pan Hd. Tapping + TW,

2

4x 12mm, 21

30 4120182004 Bolt Hex C-SCT 5 x 16

2

31 411 0081607

Spring Washer 4 mm

1

32

4110014704

Screw, Pan Hd. Tapping, 4 x 10mm, 1
21

33 4110541903

Nut Hex + FLG W/SRT5

2

34

6171325713

Insulation sheet

1

–16-

.. .. ....... .. . .. .. .:.:..

DOOR PARTS

.-

‘6

4***

..

.

-— -

‘i

-.

● ☞✍

ALL SERVICE ON MICROWAVE OVENS SHOULD BE PERFORMED BY A QUALIFIED TECHNICIAN
USING APPROVED TESTING EQUIPMENT. CUSTOMERS SHOULD

NOT AITEMPT TO REPLACE PARTS

identified By ATRlp LEAST= RIS~(*”*)

Key

Patt No.

Description

a’ ty

Key 1

Pat No.

Desc:iptiOn

0’ t’f

No.

No.

1

6171246469

Door

Cover” “.

1

2

6171246476

Ooor Panel

● “”

1

3

6171246414

Door Main Frame””” (Also order

1

Spring Washer and Bolt Washer,

Ooor

Sheet when replacing Ooor

5x 14mm, Zl ”””

Main Frame)

9 6170806503

Rivet”””

2

4 6171246490

Choke Dielectric” “.

1

10

617101 1494

Spring”””

1

5

6171246483

Ooor Sheet.”.

1 11 617101 1487

Ooor Latch”

● ●

1

A

-17–

.—

CONTROL PANEL PARTS

6

8

7 ●**’\‘i \

4**+

\

3 .**

1

● **

1

“\

\ $3”

\

11 ● **

● ** ALL SERVICE ON MICROWAVE OVENS SHOULD BE

USING APPROVED TESTING EQUIPMENT. CUSTOMERS

IDENTIFIED BY A TRIPLE ASTERISK***)

PERFORMED B’f A QUALIFIED

TECHNICIAN

SHOULD NOT ATTEMPT TO REPLACE PARTS

Key
NO.

1

2

3

4

5

Part No.

Description

Q’ty

6171307535

ControlSheet

(Also order 1
Touch Key Board when replacing
Control Sheet) 1

6171307542

Touch Kay Board” ”*(Aslo order

1
Control Sheet when replacing
Touch Key Board)

6171246629

Control Plate’”* 1

6171246643

Control Frame””

●

1

4110854102

Lockwasher, External Tooth, 4mm

1

PRINTED MATTER (Items Not Illustrated)

Key

Part No.

Dasctiption

No.

C1’ty

6171305753 0peratin9 Instructions

1

6171419962 Carton BOX

1

Key
No.

Part No.

I

Description

arty

I

6

7
B
9

10
11

4110825201

6171241129
6171294965
411 1295805

6170809559
6171246612

Screw, Truss Hd. Tapping,
4x 10mm, U1-1
Control Base’

● *

Control Circuit Board Complete
Screw, Bind Hd. Tapping,
3 x 10mm, ZK-1
Spring, Door Release Lever*”’
Ooor Release Lever*’

●

1

1
1

2

2
1

I

I

I

I

–18–

.’.

CONTROL CIRCUIT BOARD
(Part No. 617129 4965)

TP-1 —

LC6183

I

I if- C107
12

++ODIO’

1

J

Jive

----

0. _____

.JIvl

----

‘N WFS1 ~

Rll 1*-

I - 1!

— TP-3

_ TP-2

—1

\.\

Ground

–19–

...

!., ..)

~

—-—- ———— ——

1 nz

[ 11

u!

VST1

I

I

r

——

I

I

I

I

I

I

I

III

I

-+t----l-l-

—

.J?r---ltll”. ? F’ ?IJ&KeIl , :T I

I

I

nlll

L

1

,.

L

.,

Q}~U

L-. .i Ir

1

WY

,

5

i&,

------ ----—,

r .-.

I

I

I

I

I

I

I

I

I

I

I

I

I

I

I

I

I

I

I

I

I

I

-’l

1

‘1

DTI - 5MT-93ZK

~—______ __ ———~

SANYONEWZEALAND L~