R-98STMA (serv.man11). Component Replacement And Adjustment Procedure - Sharp Home Appliance Service Manual (repair manual). Page 5

R98STMAA

11 – 5

1. Insert the moulding cord stopper of power supply cord into the

square hole of the power angle, referring to the Figure C-5(b).

2. Install the earth wire lead of power supply cord to the back plate

with one (1) screw and tight the screw.

3. Connect the brown and blue wire leads of power supply cord to the

noise filter correctly, referring to the Pictorial Diagram.

Figure C-5(b). Power Supply Cord Replacement

1. CARRY OUT 3D CHECKS.

2. Disconnect wire leads from the thermal cut-out (GRILL).

3. Remove the two (2)screws holding the two (2) terminals of the main

wire harness to the two (2) grill heating elements.

4. Remove the one (1) screw holding the exhaust duct to the oven

cavity top plate. 

5. Remove the exhaust duct from the oven cavity top plate.

6. By pushing the two (2) tabs holding the grill reflector to the oven

cavity top plate, slide the grill reflector toward the magnetron. And
then lift up the grill reflector and remove it.

7. Remove the one (1) screw holding the grill heater angle to the grill

heater reflector. 

8. Straighten the two (2) tabs of the grill heater angle and remove the

grill heater angle from the grill reflector.

9. Remove the two (2) screws holding the earth plate to the two (2)

grill heating elements.

10.Remove the two (2) grill heating elements from the grill reflector.

11.Now, the grill heating elements are free.

1. CARRY OUT 3D CHECKS.

2. Remove the control panel assembly referring to “CONTROL

PANEL ASSEMBLY REMOVAL”.

3. Disconnect the leads from all switches.

4. Remove the two (2) screws holding the latch hook to the oven cav-

ity.

5. Remove the latch hook.

6. Remove the switch(es) from the latch hook by pushing the retaining

tab backwards slightly and turning the switch(es) on the post.

7. Now the switch(es) is free

Figure C-6. Switches

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 activated 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 all switches operation. If the latch head has not

pushed the plungers of the monitor switch with door closed, adjust
the latch hook position. At that time, the latch head should have
pushed the plungers of the monitored latch switch and stop switch.
If the latch head has not pushed the plungers of the monitored latch
switch and stop switch with door closed, loose two (2) screws hold-
ing latch hook to oven cavity front flange and adjust the latch hook
position.

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

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

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

switch open within 1.8mm gap between right side of cavity face
plate and door when door is opened.

Power supply cord

Back plate

Moulding cord stopper

Square hole

Stop switch

Monitor switch

Monitored
latch switch

Tab

Post

Post