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19

4. Slide the control panel assembly upward and remove it.
5. Now, individual components can be removed.
NOTE: 1. Before attaching a new key unit, wipe off

remaining adhesive on the control panel frame
surfaces completely with a soft cloth soaked in
alcohol.

2. When attaching the key unit to the control panel

frame, adjust the upper edge and right edge of
the key unit to the correct position of  control
panel frame.

3. Stick the key unit firmly to the control panel

frame by rubbing with soft cloth not to scratch.

CPU UNIT
NOTE: Handle the CPU unit carefully so that the ribbon

1. Disconnect oven from power supply.
2. Remove turntable and turntable support from oven

cavity.

3. Lay the oven on it's backside. Remove the turntable

motor cover by snipping off the material in four corner.

4. Where the corners have been snipped off bend corner

areas flat. No sharp edge must be evident after removal
of the turntable motor cover.

5. Disconnect wire leads from turntable motor.

(See "Positive lock connector removal")

6. Remove two (2) screws holding turntable motor to oven

cavity.

7. Now the turntable motor is free.
8. After replacement use the one (1) screw to fit the

turntable motor cover.

NOTE: The one (1) screw to fit the turntable motor cover

should be XHTSD40P08RV0.

1. CARRY OUT 3D CHECKS.
2. Disconnect the wire leads from the fan motor.
3. Remove the magnetron and the chassis support from

the waveguide, referring to "MAGNETRON REMOVAL".

4. Release the snap of the main wire harness from the fan

duct.

5. Remove one (1) screw  holding the fan duct assembly

to the oven cavity.

6. Release the main wire harness from the hole of the fan

duct.

7. Release the fan duct from the waveguide flange.
8. Release the fan duct assembly from the oven cavity.
9. Remove the fan blade from the fan motor shaft according

the following procedure.

1) Hold the edge of the rotor of the fan motor by using a

pair of grove joint pliers.

2) Remove the fan blade from the shaft of the fan motor

by pulling and rotating the fan blade with your hand.

3)  Now, the fan blade will be free.
CAUTION:
*

10.Remove the two (2) screws holding the fan motor to the

fan duct.

11.Now, the fan motor is free.

INSTALLATION
1. Install the fan motor to the fan duct with the two (2)

screws.

2. Install the fan blade to the fan motor shaft according the

following procedure.

1) Hold the center of the bracket which supports the shaft

of the fan motor on the flat table.

2) Apply the screw lock tight into the hole (for shaft) of the

fan blade.

3) Install the fan blade to the shaft of fan motor by pushing

the fan blade with a small, light weight, ball peen
hammer or rubber mallet.

3. Catch three holes of fan duct on three tabs of the

waveguide flange.

4. Install the fan duct assembly to the oven cavity with the

one (1) screw.

5. Insert the snap of the main wire harness to the hole of

the fan duct and insert the main wire harness into the
hole of the fan duct.

6. Install the chassis support and the magnetron to oven

cavity.

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

pictorial diagram.

Printed wiring board 

of CPU unit

Liquid Crystal

Display (LCD)

Ribbon cable

cable does not come off. Because the ribbon cable
is sticked on the LCD and the printed wiring board
only by heated paste.

20

1. CARRY OUT 3D CHECKS.
2. Remove the one (1) purse lock holding the wire leads

of the main wire harness and the brown and blue wire
leads of the power supply cord.

3. Remove the single (1) screw holding the green/ yellow

wire to the bottom plate.

4. Disconnect the leads of the power supply cord from the

noise filter, referring to the Figure C-3 (a).

5. Release the moulding cord stopper of the power supply

cord from the square hole of the oven cavity back plate,
referring to the Figure C-3 (b).

6. Now, the power supply cord is free.

1. Insert the moulding cord stopper of power supply cord

into the square hole of the rear cabinet, referring to the
Figure C-3 (b).

2. Install the earth wire of power supply cord to the bottom

plate with one (1) screw and tight the screw.

3. Connect the brown and blue wire leads of power supply

cord to the noise filter correctly, referring to the Pictorial
Diagram.

4. Hold the the wire leads of the main wire harness and

the brown and blue wire leads of the power supply cord
with the one (1) purse lock.

5. Re-install outer case and check that the oven is

operating properly.

Gap

Rotor

Bracket

Stator

Groove joint pliers

Coil

Shaft

Axis

Stator

Rotor

These are the positions 
that should be pinched 
with pliers.

Shaft

Table

Center of
bracket

Power Supply 
Cord

Oven Cavity 
Back Plate

Square 
Hole

Moulding
Cord Stopper

1. CARRY OUT 3D CHECKS.
2. Disconnect wire leads from the switches.
3. Remove two (2) screws holding latch hook to oven

flange.

4. Remove latch hook assembly from oven flange.
5. Push outward on the two (2) retaining tabs holding

switch in place.

6. Switch is now free.
Re-install
1. Re-install each switch in its place. The monitored

latch  and monitor switches are in the lower position
and the 2nd. interlock relay control switch is in the
upper 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.

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.

If the monitored latch switch, 2nd. interlock relay control
switch and monitor switch do not operate properly due to a
misadjustment, the following adjustment should be made.

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

oven cavity front flange.

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

N

L

Power Supply
Cord

Oven Cavity 
Back Plate

Bottom Plate

Screw

Green/Yellow Wire

Brown Wire

Blue Wire

Fuse F10A

Purse Lock

White Wire

Red Wire

Noise Filter

WHT

RED

21

Choke Cover

Door Frame

Putty Knife

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
monitored 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.

3. Secure the screws with washers firmly.
4. Check all switches operation. 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.

REMOVAL
1. Disconnect the power supply cord.
2. Open button and open the door slightly.
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-5 to free engaging parts.

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

Figure C-5.

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 panel with door frame is free from oven

cavity.

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

the door frame.

10.Release door panel from eight (8) tabs of door frame.
11.Now, door panel with sealer film is free.
12.Tear sealer film from door panel.
13.Now, door panel is free.
14.Slide latch head upward and remove it from door frame

with releasing latch spring from door frame and latch
head.

2. The contacts of the monitored latch switch and 2nd.

interlock relay control switch open within 0.9mm gap
between right side of cavity face plate and door when
the door is open.

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.)

15.Now, latch head and latch spring are free.

16.Remove the door screen from the door frame.

17.Now, door screen is free.

RE-INSTALL
1. Re-install door screen to door frame.
2. Re-install the latch spring to the latch head. Re-install

the latch spring to the door frame. Re-install latch head
to door frame.

3. Re-install door panel to door frame by fitting eight (8)

tabs of door frame to eight (8) holes of door panel.

4. Hold the door panel to the door frame with the four (4)

screws.

5. Put sealer film on door panel. Refer to “Sealer Film”

about how to handle new one.

6. Catch two (2) pins of door panel on two (2) hole of upper

and lower oven hinges.

7. 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 Microwave
Measurement Procedure.)

Latch Hook

2nd. Interlock
Reley Control 
Switch

Latch 
Heads

Door

Monitor Switch

Monitored Latch
Switch

22

Sealer film

Backing film

Adhesive tape

Pin

Pin

Upper 
Oven Hinge

Upper Oven 
Hinge

Lower Oven

Hinge

Lower 
Oven Hinge

Slit Choke of
Door Panel

Choke Cover

Note:

The door on a microwave oven is designed to act
as an electronic seal preventing the leakage of
microwave energy from oven cavity during cook
cycle. This function does not require that door be
air-tight, moisture (condensation)-tight or light-
tight. Therefore, occasional appearance of
moisture, light or sensing of gentle warm air
movement around oven door is not abnormal and
do not of themselves indicate a leakage of
microwave energy from oven cavity.

Installation
1. Put the adhesive tape on the backing film of the sealer

film as shown in Fig. C-7.

2. Tear the backing film by pulling the adhesive tape.
3. Put the pasted side of the sealer film on the door panel.