Sharp R-22GT Service Manual Download Page 33

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R-22GV
R-22GT
R-23GT
R-24GT

pictorial diagram. Be careful to ensure proper connection
of the wire leads.

4. Make sure that the monitor switches (1), (2) and all other

switches are operating properly. And check continuity of
the monitor circuit. Refer to chapter "Test Procedure"
and Adjustment procedure.

If the door sensing switch, secondary interlock switches (1),
(2) and monitor switches (1), (2) 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 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 door sensing
switch and secondary interlock switches (1), (2) are
activated with the door closed. The horizontal position of
the latch hook should be adjusted so that the monitor
switches (1), (2) are activated with the door closed.

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

not activated with the door closed, loosen two (2) screws
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.

2. The door sensing switch and secondary interlock switches

(1), (2) interrupt the circuit before the door can be
opened.

DOOR SENSING SWITCH/SECONDARY INTERLOCK SWITCHES (1), (2)

AND MONITOR SWITCHES (1), (2) ADJUSTMENT

3. Monitor switches (1), (2) 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.)

Latch head

Monitor switch (1)

Latch hook

Secondary interlock
switch (1)

Door sensing switch

Latch head

Joint lever

Door release
lever

Latch lever

Secondary interlock
switch (2)

Monitor switch (2)

Switch lever C

Switch lever A

Switch lever B

Figure C-2. Latch Switch Adjustments

(B) An approved microwave survey meter should be

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

DOOR ADJUSTMENT
Door adjustment is performed with the door properly in-
stalled and closed and while the oven hinges are loose.
1. Loosen upper and lower oven hinges with phillips head

screw driver.

2. Adjust the door by moving it vertically so that the top right

hand corner of the door is in line with the top of the control
panel frame assembly.

3. Tighten the upper and lower oven hinge screws.
After adjustment, make sure of the following:
1. Door latch heads smoothly catch the latch hook through

the latch holes, and the latch head goes through the
center of the latch hole.

2. Deviation of the door alignment from horizontal line of

cavity face plate is to be less than 1.0mm.

3. The door is positioned with its face depressed toward the

cavity face plate.

4. Re-install outer case and 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-

REMOVAL
1. Disconnect oven from power supply
2. Remove outer case referring to "OUTER CASE, REAR

CABINET AND POWER SUPPLY CORD REMOVAL".

3. Remove the two (2) screws holding each of the upper

and lower oven hinges to the oven cavity.

4. Remove door assembly with upper and lower oven

hinges by pulling it forward.

5. Release upper and lower oven hinges from door

assembly.

6. Now, door assembly is free.
NOTE: When individual parts are replaced, refer to "Door

Disassembly".

RE-INSTALL
1. Insert the upper and lower oven hinges into door hinge

pins.