
R-25JT-F
35
procedure.
DOOR SENSING SWITCH
Push the two (2) tabs outward and pull switch forwards to
release switch.
MONITOR SWITCHES OR SECONDARY INTERLOCK
SWITCHES
Remove one (1) screw and nut holding two switches together
to latch hook.
8. Now, switch(es) is now free.
RE-INSTALL
1. Re-install the switch(es) in accordance with following
procedure.
DOOR SENSING SWITCH
Mount the door sensing switch in the lower position of latch
hook.
MONITOR SWITCHES
1) Mount the two (2) switches side by side in the top position
of the latch hook.
2) Fasten both switches together to latch hook with one (1)
screw and nut.
SECONDARY INTERLOCK SWITCHES
1) Mount the two (2) switches side by side in the middle
position of the latch hook.
2) Fasten both switches together to latch hook with one (1)
screw and nut.
2. Re-install latch hook assembly and fasten it to oven flange
with two (2) screws.
3. Re-connect all wire leads to all switches, referring to
pictorial diagram. Be careful to ensure proper connection of
the wire leads.
4. Make sure that the monitor switches (1), (2) and all other
switches are operating properly. And check continuity of the
monitor circuit. Refer to chapter "Test Procedure" and
Adjustment procedure.
1. Disconnect the power supply cord and then remove outer
case, referring to "OUTER CASE, REAR CABINET AND
POWER SUPPLY CORD REMOVAL".
2. Open the oven door and block it open.
3. Discharge two high voltage capacitors.
If the door sensing switch, secondary interlock switches (1), (2)
and monitor switches (1), (2) do not operate properly due to a
misadjustment, the following adjustment should be made.
4. Loosen the two (2) screws holding latch hook to the oven
cavity front flange.
5. With door closed, adjust latch hook by moving it back and
forth, and 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 door sensing switch and
secondary interlock switches (1), (2) are activated with the
door closed. The horizontal position of the latch hook
should be adjusted so that the monitor switches (1), (2) are
activated with the door closed.
6. Secure the screws with washers firmly.
7. Check the operation of all switches. If all switches have not
activated with the door closed, loosen two (2) screws and
adjust the latch hook position.
After adjustment, check the following.
1. In and out play of door remains less than 0.5mm when in the
latched position.
DOOR SENSING SWITCH/SECONDARY INTERLOCK SWITCHES (1), (2) AND MONITOR
SWITCHES (1), (2) ADJUSTMENT
2. The door sensing switch and secondary interlock switches
(1), (2) interrupt the circuit before the door can be opened.
3. Monitor switches (1), (2) contacts close when door is
opened.
4. Re-install outer case and check for microwave leakage
around door with an approved microwave survey meter.
(Refer to Microwave Measurement Procedure.)
Figure C-3. Latch Switch Adjustments
Latch head
Monitor switch (1)
Latch hook
Secondary interlock
switch (2)
Door sensing switch
Latch head
Joint lever
Door release
lever
Latch lever
Secondary interlock
switch (1)
Monitor switch (2)
Switch lever C
Switch lever A
Switch lever B
DOOR REPLACEMENT
REMOVAL
1. Disconnect the power supply cord and then remove outer
case, referring to "OUTER CASE, REAR CABINET AND
POWER SUPPLY CORD REMOVAL".
2. Open the oven door and block it open.
3. Discharge two high voltage capacitors.
4. Remove the two (2) screws holding each of the upper and
lower oven hinges to the oven cavity.
5. Remove door assembly with upper and lower oven hinges
by pulling it forward.
6. Release upper and lower oven hinges from door assembly.
7. Now, door assembly is free.
NOTE:When individual parts are replaced, refer to "Door
Disassembly".
RE-INSTALL
1. Insert the upper and lower oven hinges into door hinge pins.
2. Insert the upper and lower oven hinges with door assembly
into rectangular holes of oven cavity front plate.
3. Make sure that the door is parallel with oven face lines (left
and upper side line) and door latch heads pass through the
latch holes correctly.
4. Fasten upper and lower oven hinges firmly to oven cavity
with two (2) screws on each hinge.