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23

1. CARRY OUT 3D CHECKS.
2. Remove the control panel assembly referring to "CON-

TROL PANEL ASSEMBLY REMOVAL".

3. Disconnect the leads from all switches.
4. Remove the two (2) screws holding the latch hook to

the oven cavity.

5. Remove the latch hook.
6. Push the retaining tab outward slightly and remove the

switch.

Re-install
1. Re-install each switch in its place. The 2nd. interlock

relay control switch and the latch switch are in the lower
position and the 1st. interlock switch is in the upper
position. The monitor switch is in the middle position.

2. Re-connect wire leads to each switch.

Refer to pictorial diagram.

3. Secure latch hook (with two (2) mounting screws) to

oven flange.

Power Supply Cord

Chassis 
Support

WHT

RED

L

N

Screw

Green/Yelow
Wire

Noise Filter

Bule Wire

Oven Cavity
Back Plate

Brown Wire

Power
Supply Cord

Moulding
Cord Stopper

Oven Cavity
Rear Plate

Square Hole

4. Make sure that the monitor switch is operating properly

and check continuity of the monitor circuit.    Refer to
chapter "Test Procedure" and Adjustment procedure.

Latch Hook

Tabs

Tab

Tab

Tab

Tab

Monitor Switch

Latch Switch
(Cabinet side)

1st. Interlock Switch

2nd. Interlock Relay 
Control Switch (Oven side)

If the 1st. interlock switch, latch switch, 2nd. interlock relay
control switch and monitor switch do not operate properly
due to a mis-adjustment, the following adjustment should
be made.
1. CARRY OUT 3D CHECKS.
2. Loosen the two (2) screws holding the latch hook to the

oven cavity front flange.

3. With door closed, adjust latch hook by moving it back

and forth, and up and down. In and out play of the door
allowed by the upper and lower position of the latch
hook should be less than 0.5mm. The vertical position
of the latch hook should be adjusted so that the 1st.
interlock switch, latch switch and 2nd. interlock relay
control switch  are activated with the door closed. The
horizontal position of the latch hook should be adjusted
so that the plunger of the monitor switch is pressed with
the door closed.

4. Secure the screws with washers firmly.
5. Check the operation of all switches. If each switch has

not activated with the door closed, loosen screw and
adjust the latch hook position.

After adjustment, check the following.
1. In and out play of door remains less than 0.5mm when

in the latched position. First check upper position of
latch hook, pushing and pulling upper portion of door

toward the oven face. Then check lower portion of the
latch hook, pushing and pulling lower portion of the
door toward the oven face. Both results (play in the
door) should be less than 0.5mm.

2. The 1st. interlock switch, latch switch and 2nd. inter-

lock relay control switch interrupt the circuit before the
door can be opened.

3. Monitor switch contacts close when door is opened.
4. Re-install outer case and check for microwave leakage

around door with an approved microwave survey meter.
(Refer to Microwave Measurement Procedure.)

Latch Hook

Latch Switch

Lever A

Latch Switch

Lever B

Latch Switch

Lever C

Latch Head

Latch Head

Handle

Lever

Door

Handle

Latch

Lever

Monitor
Switch

1st. Interlock Switch

2nd. Interlock Relay 
Control Switch

Latch Switch

24

CHOKE COVER
1. Disconnect the oven from the power supply.
2. Open the oven door and wedge it open.
3. Insert a putty knife (thickness of about 0.5mm) into the

gap between the choke cover and door frame as
shown in Figure C-6 to free engaging parts.

4. Pry the choke cover by inserting a putty knife as shown

in Figure C-6.

5. Release choke cover  from door panel.
6. Now choke cover is free.

7. Release two (2) pins of door panel from two (2) holes

of upper and lower oven hinges by lifting up.

8. Now, door sub assembly is free from oven cavity.

DOOR PANEL REMOVAL
9. Remove the four (4) screws holding the door panel to

the door frame.

10.Release door panel from seven (7) tabs of door frame

by sliding door panel downward.

11.Now, the door panel is free.

DOOR HANDLE REMOVAL
12.Release the latch spring from the tab of the latch angle

assembly.

13.Remove the two (2) screws holding the door handle,

latch angle and the earth angle assembly through the
door frame.

14.Now, door handle is free.

LATCH HEADS REMOVAL
15.Remove the one (1) screw holding the latch angle

assembly to the door frame.

16.Remove the latch angle assembly together with the

latch lever, latch spring and the upper and lower latch
heads from the door frame.

17.Release the latch lever together with the latch spring

and the latch heads from the latch angle assembly.

18.Release the two (2) latch heads from the latch lever.
19.Now, the upper and lower latch heads are free.

FRONT DOOR GLASS OR SEALER PLATE REMOVAL
(After DOOR PANEL REMOVAL)
12.Remove the four (4) screws holding the glass stopper

U to the door frame and remove the glass stopper U.

13.Remove the two (2) screws holding the glass stopper

R to the door frame and remove the glass stopper R.

14.Slide the front door glass and the sealer plate left at first

and then slide upwards to release them from the tabs
holding them.

15.Now, the front door glass or the sealer plate is free.

DOOR CASE REMOVAL
(After DOOR PANEL REMOVAL)
12.Straighten all tabs of the door case holding the door

case to the door frame.

13.Release door case from the door frame.
17.Now, the door case is free

NOTE: At this moment, the door badge is attached on the

door case.

RE-INSTALL OF THE DOOR
1. Re-install all door parts except the choke cover.
2. Catch two (2) pins of door panel on two (2) holes of

upper and lower oven hinges.

3. Re-install choke cover to door panel by pushing.

After any service, make sure of the following :
1. Door latch heads smoothly catch latch hook through

latch holes and that latch head goes through center of
latch hole.

2. Deviation of door alignment from horizontal line of

cavity face plate is to be less than 1.0mm.

3. Door is positioned with its face pressed toward cavity

face plate.

4. Check for microwave leakage around door with an

approved microwave survey meter.  (Refer to Micro-
wave Measurement Procedure.)

Note: The door on a microwave oven is designed to act as

an electronic seal preventing the leakage of micro-
wave energy from oven cavity during cook cycle. This
function does not require that the door be air-tight,
moisture (condensation)-tight or light-tight. There-
fore, occasional appearance of moisture, light or
sensing of gentle warm air movement around oven
door is not abnormal and do not in themselves indi-
cate a leakage of microwave energy from oven cavity.

Putty Knife

Door Frame

Choke Cover

Upper Oven
Hinge

Upper 
Oven
Hinge

Lower 
Oven
Hinge

Lower 
Oven
Hinge

Pin

Pin

Choke Cover

Door
Panel

Slit Choke

25

1. Disconnect the oven from the power supply.
2. Open the oven door and wedge it open.
3. Make sure that the smooth surface of the ceramic shelf

face up.

4. Make sure that the rubber packing without a fin of the

ceramic shelf faces the front of the oven.

NOTE: The three (3) rubber packings with the fins and the

one (1) rubber packing without a fin are attached
to the four (4) edges of the ceramic shelf. The one
(1) rubber packing without a fin is the front edge of
the ceramic shelf.

5. Put the front edge of the ceramic shelf into the front

edge of the oven cavity bottom plate.

6. Push down the rear edge of the ceramic shelf into the

oven cavity bottom plate.

7. Now, the ceramic shelf is installed.

WARNING

Make sure that the rubber packing is not caught between
the oven door and the oven cavity front plate, to avoid
possible exposure to excessive microwave energy.

Rear Edge

Push

Front Edge

Ceramic 
Shelf

Oven Cavity

1. Disconnect the power supply cord.
2. Open the door and wedge the door open.
3. To discharge the high voltage capacitor, wait for 60

seconds.

4. Remove the antenna motor from the oven cavity bottom

plate, referring to "ANTENNA MOTOR REMOVAL" .

5. Remove the ceramic shelf from the oven cavity bottom

plate.

6. Remove the one (1) screw and the one (1) washer

holding the antenna holder of the stirrer antenna as-
sembly to the oven cavity bottom plate through the
square hole of the stirrer antenna. Refer to Figure C-8.

7. Release the antenna holder from the one (1) tab of  the

oven cavity bottom plate.

8. Remove the stirrer antenna assembly from the oven

cavity bottom plate.

9. Remove the antenna motor shaft from the hole of the

oven cavity bottom plate.

10.Now, the antenna motor shaft is free.

2. Set the direction of the stirrer antenna and antenna

holder so that the hole of the antenna holder fit to the
centre of the stirrer antenna's big blade. Refer to Figure
C-9.

3. Hook the hole of the antenna holder on the tab of the

oven cavity bottom plate. Refer to Figure C-10.

4. Insert the antenna holder into the hole of the oven

cavity bottom plate and fit the hole of the antenna
holder with an antenna motor shaft. Refer to Figure C-
10.

5. Install the antenna holder to  the oven cavity bottom

plate with the one (1) screw and the one (1) washer.
Refer to Figure C-8.

6. Install the antenna motor to the oven cavity bottom plate

with one (1) screw. Refer to Figure C-8.

7. Connect the wire leads to the antenna motor, referring

to the pictorial diagram.

8. Install the base plate cover to the base plate with one

(1) screw.

9. Install the ceramic shelf to the oven cavity bottom plate.

Refer to "INSTALLATION OF CERAMIC SHELF" .

Screw

Square 
hole

Screw

Antenna motor

Antenna 
motor shaft

Antenna holder

Stirrer antenna

Oven cavity
bottom plate

Tab

Washer

INSTALLATION
1. Install the antenna motor shaft into the hole of the oven

cavity bottom plate, and turn the flat faces of antenna
motor shaft to the left and right side walls of oven cavity
(to fit the stirrer antenna holder). Refer to Figure C-9.

Flat face

Flat face

To right wall 
of oven cavity

To left wall of 
oven cavity

Antenna 
motor shaft

Antenna holder

Stirrer antenna

Stirrer antenna's 
big blade

Centre

Hole

26

Antenna holder

Stirrer antenna

Antenna holder

Stirrer antenna

Antenna 
motor shaft

Tab

Stirrer antenna assembly

Tab

Antenna 
motor shaft

Antenna 
motor shaft

Oven cavity
bottom plate

Oven cavity bottom plate

Tab