R-464 (serv.man4). Control panel, component replacement and adjustment procedure - Sharp Home Appliance Service Manual (repair manual). Page 10

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Door frame

Front cover

Front cover

7-pin wire 
harness

7-pin wire 
harness

Power unit

Base plate

Hole

Hole

Door

Sealer film

Backing film

Adhesive tape

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.

11.With pulling out the 7-pin wire harness from the hole of

the oven cavity front plate and the front cover. Remove
the door from the oven cavity.

12.Now, the door is free from the oven cavity.

REINSTALLATION
1. Insert the 7-pin wire harness to the holes of the front

cover and the oven cavity front plate.

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

and lower oven hinges.

3. Re-install choke cover  to door panel by pushing.
4. Connect the 7-pin wire harness to the power unit on the

base plate.

5. Re-install the front cover to the oven cavity front plate.
6. Hold the front cover to the base plate with (2) screws.
7. Now the door is installed.

(A) Make sure that 1st.  interlock switch, 2nd. interlock

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.)

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

Pin

Pin

Upper oven
hinge

Upper 
oven hinge

Lower 
oven hinge

Lower 
oven hinge

Door frame 
assembly

Choke cover

Slit choke of
door panel

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

film as shown in Fig. C-8.

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

DOOR PANEL
1. CARRY OUT 3D CHECKS.
2. Remove the door from the oven. Refer to "DOOR

REPLACEMENT".

3. The choke cover should have been removed.
4. Remove the four (4) screws holding the door panel to

the door screen.

5. Now, door panel is free.

LATCH HEAD AND LATCH SPRING
6. Slide the latch head and remove it from the door

frame assembly with releasing the latch spring from
the door frame assembly and the latch head.

7. Now, the latch head and the latch spring are free.

CPU UNIT
6. Remove the two (2) screws holding the PWB cover to

the door frame assembly.

7. Remove the PWB cover from the door frame assembly.
8. Remove the one (1) screw holding the CPU unit to the

door frame assembly.

9. Releasing the two (2) tabs, remove the CPU unit with

the LCD holder from the door frame assembly.

10.Releasing the two (2) tabs, release the LCD from the

LCD  holder.

11.Releasing the four (4) tabs, remove the LCD holder