24
R-763 -
1. CARRY OUT 3D CHECKS.
2. Remove the control panel assembly referring to
“CONTROL PANEL REMOVAL”.
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. Push the retaining tab slightly and remove the switch.
MONITORED LATCH SWITCH, STOP SWITCH AND MONITOR SWITCH ADJUSTMENT
Figure C-4Latch Switches Adjustment
Latch Hooks
Stop Switch
SW3
Monitor Switch
SW2
Monitored Latch
Switch SW1
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 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 monitored latch switch, stop switch and
monitor switch operation. If those switches have not
activated with the door closed, repeat steps 1-4.
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 position, pushing
and pulling the door toward the oven face. The results
(play of the door) should be less than 0.5 mm.
2. The contacts (COM - NO) of monitored latch switch and
stop switch interrupt the circuit before the door can be
opened.
Stop switch
SW3
Monitor switch
SW2
Monitored latch
switch SW1
COMPONENT REPLACEMENT AND ADJUSTMENT PROCEDURE
PRIMARY LATCH SWITCH, STOP SWITCH AND MONITOR SWITCH REMOVAL
3. The contacts (COM - NC) of the monitor switch close
when the 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.)
Figure C-3. Switches
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