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R65

8WM

11 – 3

1. Disconnect the oven from the power supply.

2. Remove the turntable motor cover by snipping off the material in

four corners.

3. Where the corners have been snipped off bent corner areas flat. No

sharp edge must be evident after removal of turntable motor cover.

4. Disconnect the wire leads from the turntable motor and remove the

one (1) screw holding the turntable motor.

5. Turntable motor is now free.

6. After replacement use one (1) screw to fit the turntable motor

cover.(XOTS740P08000)

1. CARRY OUT 3D CHECKS.

2. Disconnect all the wire leads and the connectors from the control

panel.

3. Straighten the tab holding the control panel to the oven cavity face.

4. Lift up the control panel assembly and pull it forward. 

Now the control panel assembly is free.

1. CARRY OUT 3D CHECKS.

2. Remove the control panel assembly, referring to chapter of CON-

TROL PANEL ASSEMBLY REMOVAL.

3. Disconnect the ribbon cable of the membrane switch from the con-

nector (CN-G) on the control unit.

4. Tear away the graphic sheet from the control panel frame.

5. Tear away the membrane switch from the control panel frame.

1. Remove remaining adhesive on the control panel frame surfaces

with a soft cloth soaked in alcohol.

2. Tear the backing paper from the new membrane switch.

3. Insert the ribbon cable of the membrane switch into the slit of the

control panel frame.

4. Adjust the upper edge and right edge of the membrane switch to

the small depression on the surface of the control panel frame. 

5. Attach the membrane switch to the control panel frame by rubbing

with a soft cloth not to scratch.

6. Tear the backing paper from the new graphic sheet.

7. Adjust the upper edge and right edge of the graphic sheet to the

large depression on the surface of the control panel frame. 

8. Attach the graphic sheet to the control panel frame by rubbing with

a soft cloth not to scratch.

9. Connect the ribbon cable of the membrane switch to the connector

(CN-G) on the control unit.

NOTE: Do not contact the contact surface of the ribbon cable

 Figure C-1. Graphic Sheet and Membrane Switch Replace-

ment

1. CARRY OUT 3D CHECKS.

2. Disconnect the wire lead from the oven lamp.

3. Lift up the oven lamp from the clips of the air intake duct.

4. Now, the oven lamp is free.

Oven lamp

1. CARRY OUT 3D CHECKS.

2. Remove the two (2) screws holding the two (2) terminals of the

main wire harness to the grill heating element.

Graphic sheet

Ribbon
cable

Connector
(CN-G)

Small depression

Control panel frame

Slit

Control unit

Membrane
switch

Ribbon
cable

Large
depression

BULB

LOCK

R65

8WM

11 – 4

3. Remove the one(1) screw holding the grill heater angle to the top of

the oven cavity.

4. Remove the grill heater angle from the oven cavity. 

5. Remove the grill heating element from the top of the oven cavity.

6. Now the grill heating element is free.

1. CARRY OUT 3D CHECKS.

2. Remove the one (1) screw holding the green/yellow wire to the

chassis support.

3. Disconnect the leads of the power supply cord from the noise filter,

referring to the Figure C-2(a).

4. Release the power supply cord from the oven cavity.

5. Now, the power supply cord is free.

Figure C-2 (a) Replacement of Power Supply Cord

1. Insert the moulding cord stopper of power supply cord into the

square hole of the power angle, referring to the Figure C-2(b).

2. Install the earth wire lead of power supply cord to the chassis sup-

port 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.

Figure C-2(b). Power Supply Cord Replacement

1. CARRY OUT 3D CHECKS.

2. Disconnect the wire leads from the switches and control panel.

3. Remove the control panel assembly from the oven cavity front

flange. Referring to chapter “CONTROL PANEL ASSEMBLY
REMOVAL”.

4. Remove the one (1) screw holding the air intake duct to the latch

hook.

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

flange.

6. Remove the latch hook assembly from the oven flange.

7. To remove the switch.

1) With pushing outward on the tab that is holding the switch, turn

the switch so that the post is an axis.(Monitor Switch) 

With pushing outward on the tab that is holding the switch, slide
the switch out of the latch hook. (Stop Switch and Monitored
Latch switch)

2) Pull out the switch from the latch hook. Do not break the post or

tab of the latch hook. 

3) Now the switch is free.

1. Re-install each switch in its place. The monitored latch switch is in

the lower position and the monitor switch is in the middle position.
The stop switch is in the upper position.

2. Re-connect wire leads to each switch. Refer to chapter “Pictorial

Diagram”.

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

4. Reinstall the air intake duct to the latch hook with the one (1) screw.

5. Re-install the control panel assembly to the oven cavity front

flange.

6. Re-connect wire leads to the control unit. Refer to chapter “Pictorial

Diagram”.

7. Make sure that monitor switch is operating properly and check con-

tinuity of the monitor circuit. Refer to chapter “Test Procedure”, and
Adjustment Procedure

Figure C-3. Switches

Power supply
cord

Oven cavity
back plate

Chassis
support

BLU

G-Y

BRN

EARTH

Noise filter

RED

N

F2

F1

TP

TL

L

WHT

RED

RED

BLK

WHT

Power Supply
Cord

Oven Cavity
Rear Plate

Moulding Cord
Stopper

Square Hple

Latch hook

Tab

Stop switch

Monitor switch

Monitored latch switch

Tab

Tab

R658WM

11 – 5

If the  monitored latch switch, stop  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. And also loosen the one (1) screw holding air intake

duct to the latch hook.

3. 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 horizontal position of the latch hook should be placed where

the monitor switch has activated with the door closed. The vertical

position of  the  latch  hook  should be  placed  where the  monitored

latch switch and stop switch have activated with the door closed.

4. Secure the screws with washers firmly.
5. Make sure of the all switches operation. If the latch head has not

pushed the plungers of the monitor switch with door closed, adjust

the  latch  hook  position.  At  that  time,  the  latch  head  should  have

pushed the plungers of the monitored latch switch and stop switch.

If the latch head has not pushed the plungers of the monitored latch

switch and stop switch with door closed, loose two (2) screws hold-

ing latch hook to oven cavity front flange and adjust the latch hook

position.

1. In  and  out  play  of  door  remains  less  than  0.5  mm  when  latched

position.  First  check  the  latch  hook  position,  pushing  and  pulling

upper portion of the door toward the oven face. 

Then  check  the  lower  latch  hook  position,  pushing  and  pulling

lower portion of the door toward the oven face. Both results (play of

the door) should be less than 0.5mm.

2. The contacts (COM-NO) of the stop switch and the monitored latch

switch  open  within  1.6mm  gap  between  right  side  of  cavity  face

plate and door when door is opened.

3. When the door is closed, the contacts (COM-NO) of the stop switch

close. 

4. When  the  door  is  closed  the  contacts  (COM-NC)  of  the  monitor

switch and monitored latch switch open. And the contacts (COM-

NO) of their switches close.

5. Re-install  outer  case  cabinet  and  check  for  microwave  leakage

around the door with an approved microwave survey meter. (Refer

to Microwave Measurement Procedure.)

1. Disconnect the power supply cord.
2. Open the door slightly and remove the built in frame assembly (Ref:

to chapter built in frame assembly removal).

3. Remove the choke cover taking care not to break clips by inserting

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

C-5 to free the engaged parts.

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

Figure C-5. Door Disassembly

NOTE: When carrying out any repair to the door, do not bend or warp

the  slit choke (Tabs on the  door panel  assembly) to  prevent

microwave leakage.

6. Release two (2) pins of door panel from two (2) holes of upper and

lower oven hinges by lifting up. 

7. Remove door panel by removing screws (4).
8. Release  door  panel  from  tabs  of  door  frame  and  remove  door

frame.

9. Now, door panel with inner sealer film is free.
10.Tear inner sealer film from door panel.
11.Now, door panel is free.
12.Slide latch head upward and remove it from door frame with releas-

ing latch spring from door frame and latch head.

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

1. Re-install  latch  spring  to  the  head.  Re-install  latch  spring  to  the

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

2. Re-install door panel to door frame by fitting tabs of door frame to

holes of door panel.

3. Put sealer film on door panel. Refer to “Inner Sealer Film” and fig-

ure C-7, on how to handle the new film.

4. Catch two (2) pins of door panel on two (2) hole of upper and lower

oven hinges.

5. Re-install choke cover to door panel by pushing.
NOTE:

After any service to the door;
1)

2)

10

5

4

12

8

7

9

11

3

2

1

Choke Cover

Door Frame

Putty Knife

6

R65

8WM

11 – 6

1. Door latch heads smoothly catch latch hook through latch holes

and that latch head goes through centre 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 micro-

wave survey meter. (Refer to Microwave Measurement Procedure.)

NOTE: The door on a microwave oven is designed to act as an elec-

tronic 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.

           Figure C-6. Door Replacement

4. INNER SEALER FILM
Installation

1. Tear away the backing film.

2. Put the pasted side of the inner sealer film on the door panel.

Figure C-7. Inner Sealer Film

PIN

PIN

LOWER-
OVEN HINGE

UPPER-
OVEN HINGE

LOWER-
OVEN HINGE

CHOKE COVER

DOOR-
PANEL

DOOR SUB -
ASSEMBLY

SLIT CHOKE

Door film

Finger tab

Backing film