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R-490C(S)

DOOR REPLACEMENT

REMOVAL
1. Disconnect the power supply cord.
2. Push the 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-6 to free engaging parts.

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

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 panel with door frame is free from oven

cavity.

Figure C-6. Door Disassembly

9. Remove the two (2) screws holding the door panel to

the door frame.

10.Release door panel from nine (9) 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.

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

16.Now, the door frame assembly is free.

NOTE: The door glass can not be exchanged by itself.

Because the door decoration is fixed by the both
sides adhesive tape. The Door frame assembly
should be available as spare part.

RE-INSTALL
1. 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.

2. Re-install door panel to door frame by fitting nine (9)

tabs of door frame to nine (9) holes of door panel.

3. Hold the door panel to the door frame with the two (2)

screws.

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

about how to handle new one.

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

and lower oven hinges.

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

Note: After any service to the door;

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

stop switch and monitor switch are operating
properly. (Refer to chapter “Test Procedures”.).

(B) An approved microwave survey meter should be

used to assure compliance with proper microwave
radiation emission limitation standards.

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
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-7. Door Replacement

SEALER FILM

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

Figure C-8. Sealer film

Sealer film

Backing film

Adhesive tape

Choke Cover

Door Frame

Putty Knife