R-8000GK - Sharp Home Appliance Service Manual (repair manual). Page 27

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1. CARRY OUT 3D CHECKS.

2. Disconnect the wire leads from the switch.
3. Remove the one (1) screw holding the latch hook (right or left)

to the oven cavity front plate, and release the latch hook (right
or left).

4. Keep pushing the stopper tab holding the switch to the latch

hook (right or left) and revolve the switch on the pole.

5. Remove the switch from the latch hook (right or left).
6. Now, the switch is free.
Reinstallation
1. Reinstall the switch in its place. The door sensing switch is in

the lower position of the latch hook right. The 3rd. latch switch
is in the upper position of the latch hook right. The secondary
interlock switch is in the lower position of the latch hook left. And
the monitor switch is in the upper position of the latch hook left.

2. Hold the latch hook (right or left) to the oven cavity front plate

with the one (1) screw.

3. Reconnect the wire leads to the switch.
4. Make sure that the monitor switch is operating properly and

check continuity of the monitor circuit. Refer to chapter “Test
Procedure” and “Adjustment procedure.

If the door sensing switch, secondary interlock switch, 3rd latch
switch and monitor switch do not operate properly due to a
misadjustment, the following adjustment should be made.

1. CARRY OUT 3D CHECKS.

2. Loosen each one (1) screw holding the latch hook right and

the latch hook left to the oven cavity front plate.

3. With door closed, adjust the latch hook right and the latch

hook left by moving them back and forth, and up and down.
In and out play of the door allowed by the latch hook right and
the latch hook left should be less than 0.5 mm. The vertical
position of the latch hook right and the latch hook left should
be adjusted so that the door sensing switch and the secondary
interlock switch are activated with the door closed. The
horizontal position of the latch hook right and the latch hook
left should be adjusted so that the plungers of the monitor
switch and the 3rd. latch switch are pressed with the door
closed.

4. Secure the screws firmly.
5. Check all of the switches operation. If each switch has not

activated with the door closed, loosen the screws and adjust
the position of the latch hook right and the latch hook left.

After adjustment, check the following.
1. In and out play of the door remains less than 0.5 mm when

in the latched position. First check the position of the latch
hook right, pushing and pulling right portion of the door
toward the oven face. Then check the position of the latch
hook left, pushing and pulling left portion of the door toward
the oven face. Both results (play in the door) should be less
than 0.5 mm.

2. The door sensing switch and the secondary interlock switch

interrupt the circuit before the door can be opened.

3. The monitor switch contacts close when the door is opened.
4. The 3rd. latch switch interrupt the circuit when the door is

opened.

5. Reinstall the outer case cabinet and check for microwave

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

flat. No sharp edges must be evident after removal of the
turntable motor.

7. Disconnect the wire leads from the turntable motor.
8. Remove the one (1) screw holding the turntable motor to the

oven cavity bottom plate.

9. Now, the turntable motor is free.
10. After replacement, use the one (1) screw to fit the turntable

motor cover.

Door
sensing switch
(Primary interlock
  relay control switch)

Latch hook right

Monitor 
switch

3rd. latch 
switch

Latch hook left

Secondary
interlock 
switch
(Monitored 
latch switch)

Pole

Pole

Pole

Pole

Stopper 
tab

Stopper 
tab

Stopper 
tab

Stopper 
tab

Monitor switch

Latch hook left

3rd. latch 
switch

Latch 
head

Secondary
interlock switch
(Monitored latch switch)

Door
sensing switch
(Primary interlock
  relay control switch)

Latch hook right

Latch 
head

1. Disconnect the power supply cord.
2. Wait for 60 seconds to discharge the high voltage capacitor.
3. Remove the turntable tray and the turntable support from the

oven cavity.

4. Lay the oven on its backside.
5. Remove the turntable motor cover by snipping off the material

in four corners.

6. Where the corners have been snipped off, bend corner areas