Sharp R-210A Service Manual Download

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R-210A

flange of the oven front face.

2. With the 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 horizontal
position of the latch hook should be adjusted so that the
monitor switch is activated with the door closed. The
vertical position of the latch hook should be adjusted so
that the 1st. latch switch and the 2nd. latch switch are
activated with the door closed.

3. Secure the screws firmly.
4. 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, make sure of the following.
1. In and out play of the 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 door
toward the oven face. Both results (play in the door)
should be less than 0.5mm.

2. The 1st. latch switch and 2nd. latch switch interrupt the

circuit before the door can be opened.

3. The monitor switch contacts close when the door is

opened.

4. Re-install outer case and check for microwave leakage

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

LATCH HOOK

LATCH

HEADS

DOOR

MONITOR
SWITCH

1ST. LATCH

SWITCH

2ND. LATCH

SWITCH

SWITCH LEVER

Figure C-6. Latch Switch Adjustments

REMOVAL
1. Disconnect oven from power supply.
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 corner portion of
door panel as shown in Figure C-7 to free engaging
parts.

4. Try the principles of the lever and lift up the choke cover

by inserting a putty knife in order shown in figure C-8.

5. Release choke cover from door panel.
6. Now choke cover is free.
7. Release two (2) pins of door panel from two (2) hole of

upper and lower oven hinges by lifting up.

8. Now, door panel is free from oven cavity.
9. Release door panel from ten (10) tabs of door frame

and remove door frame by sliding the door panel
downward.

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

with releasing latch spring from door frame and latch
head.

14.Now, latch head and latch spring are free.
15.Remove door screen from door frame.
16.Now, door screen is free.

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

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

3. Re-install door panel to door frame by fitting ten (10)

tabs of door frame to ten (10) holes of door panel.

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

and figure C-9, on how to handle the new film.

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

and lower oven hinges.

DOOR REPLACEMENT

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

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 micro-
wave radiation emission limitation standards.

Choke Cover

Door Frame

Putty Knife

Figure C-7. Door Disassembly

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 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 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
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 mois-