R-61FBSTM - Sharp Home Appliance Service Manual (repair manual). Page 23

R-61FBSTM/R-62FBSTM - 23

below.

1. CARRY OUT 3D CHECKS.
2. Disconnect the wire leads from the switches and control

panel.

3. Remove the control panel assembly from the oven cavity

front flange. Referring to chapter "CONTROL PANEL
ASSEMBLY REMOVAL".

4. Remove the one (1) screw holding the latch hook to the

oven flange.

5. Remove the latch hook assembly from the oven flange.
6. To remove the switch.
6-1. With pushing outward on the tab that is holding the

switch, turn the switch so that the post is an axis.(Monitor
Switch)

With pushing outward on the tab that is holding the
switch, slide  the switch out of the latch hook.(Stop
Switch and Monitored Latch switch)

6-2. Pull out the switch from the latch hook. Do not break the

post or tab of the latch hook.

6-3. Now the switch is free.

Re-install
1. Re-install each switch in its place. The monitored latch

switch is in the lower position and the monitor switch is
in the middle position. The stop switch is in the upper
position.

2. Re-connect wire leads to each switch. Refer to chapter

“Pictorial Diagram”.(page 29)

3. Secure latch hook (with one (1) mounting screw) to oven

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

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

flange.

4. Re-install the control panel assembly to the oven cavity

front flange.

5. Re-connect wire leads to the control unit. Refer to

chapter “Pictorial Diagram”.(page 29).

6. Make sure that monitor switch is operating properly

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

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

flange of the oven front face.

3. With the door closed, adjust latch hook by moving it 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 stop switch and the
monitored latch switch are activated with the door closed.

4. Secure the screw firmly.
5. 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 monitored latch switch and stop switch interrupt the

circuit before the door can be opened.

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

door is opened.

Latch hook

Tab

SW3: Stop switch 

SW2: Monitor switch 

SW1:  Monitored latch switch 

Tab

Tab

Latch hook

SW3: Stop switch

Door

SW2: Monitor switch

SW1:Monitored latch switch

Latch heads