R-757M (serv.man10). Component replacement and adjustment procedure - Sharp Home Appliance Service Manual (repair manual). Page 5

R-757M - 24

If the monitored latch switch, stop switch and monitor
switch do not operate properly due to a mis-adjustment,
the following adjustment should be made.
1. CARRY OUT 3D CHECKS.
2. Loosen the two (2) screws holding the latch hook to

the oven cavity front flange.

3. With the door closed, adjust the latch hook by moving

it back and forward, or up and down. In and out play of
the door allowed by the latch hook should be less than
0.5 mm. The horizontal position of the latch hook
should be placed where the monitor switch has acti-
vated with the door closed. The vertical position of the
latch hook should be placed where the monitored latch
switch and stop switch have activated with the door
closed.

4. Secure the screws with washers firmly.
5. Make sure of the monitored latch switch, stop switch

and monitor switch operation. If those switches have
not activated with the door closed, repeat step 1 - 4.

1. In and out play of door remains less than 0.5 mm when

latched position. First check latch hook position, push-
ing and pulling upper position of the door toward the
oven face. The results (play of the door) should be less

than 0.5mm.

2. The contacts (COM-NO) of monitored latch switch and

stop switch interrupt the circuit before the door can be
opened.

3. The contacts (COM-NC) of the monitor switch close

when 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.)

1. CARRY OUT 3D CHECKS.
2. Remove the control panel assembly referring to "CON-

TROL PANEL ASSEMBLY REMOVAL".

3. Disconnect the leads from all switches.
5. Remove the two (2) screws holding the latch hook to

the oven cavity.

6. Remove the latch hook.
7. Push the retaining tab slightly and remove switch.
8. Now the switch(es) is free.

Stop Switch

Monitor Switch

Monitored 
Latch Switch

Latch Hooks

Stop Switch

Monitor 
Switch

Monitored
Latch 
Switch

1. CARRY OUT 3D CHECKS.
2. Remove the one (1) screw holding the exhaust duct to

the oven cavity.

3. Remove the exhaust duct from the oven cavity.
4. Remove the two (2) screws holding the two (2) termi-

nals of the main wire harness to the grill heating
element.

5. Remove the two (2) screws holding the two (2) grill

heater angles to the top of the oven cavity.

6. Remove the two (2) grill heater angles from the oven

cavity.

7. Remove the grill heating element from the top of the

oven cavity.

8. Now the grill heating element is free.