Sharp R-3A53 User Manual

R-3A53
R-3A53B
IST LATCH SWITCH, 2ND LATCH SWITCH,
STOP SWITCH AND MONITOR SWITCH REMOVAL
1. CARRY OUT 3D CHECKS.
2, Remove the control panel assembly referring to
“CONTROL PANEL REPLACEMENT”.
3. Disconnect the leads from all switches.
4. Remove the two (2) screws holding the latch hook
to the oven cavity.
5. Remove the latch hook.
6. Remove the switch(s) from the latch hook by
pushing the retaining tab backwards slightly and
turning the switch(s) on the post.
7. Now, the switch(s) is free.
Latch Hook,
Post
Figure C-l 1. Switches
IST LATCH SWITCH, 2ND LATCH SWITCH
STOP SWITCH AND MONITOR SWITCH ADJUSTMENT
If the 1st latch switch, 2nd 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. 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 stop switch and moni-
tor switch have activated with the door closed.
The vertical position of the latch hook should be
placed where the 1st and 2nd latch switches have
activated with the door closed.
4. Secure the screws with washers firmly.
5. Make sure of the 1 st latch switch,-2nd latch switch,
stop switch, and monitor switch operation. If those
switches have not activated with the door closed,
two (2) screws holding latch hook to oven cavity
front flange and adjust the latch hook position.
After adjustment, make sure of following:
1. In and out play of door remains less than 0.5 mm
when latched position. First check latch hook posi-
tion, pushing and pulling the door toward the oven
face. The results (play of the door) should be less
than 0.5mm.
2. The 1st and 2nd latch switches interrupt the circuit
before the door can be opened.
3. The monitor switch contacts close when the door
is opened.
4. The stop switch contacts open when the door is
opened.
5. Re-install outer case and check for microwave
leakage around the door with an approved micro-
wave survey meter. (Refer to Microwave Measure-
ment Procedure.)
Door ,
2nd latch switch
Monitor switch
1 st latch switch
\
Switch lever
Figure C-l 2. Latch switches Adjustment
31

Sharp R-3A53 Specifications

General

Brand	Sharp
Model	R-3A53
Category	Microwave Oven
Language	English