27
R-1200
R-1201
1. Disconnect the power supply cord.
2. Open the door and block it open.
3. To discharge the high voltage capacitor, wait for 60
seconds.
4. Remove one (1) screw holding the right panel to the oven
cavity front face plate.
5. Release the right panel from the oven cavity front face
plate by lifting it up.
6. Disconnect the wire leads from the relays RY1 and RY2.
RIGHT PANEL ASSEMBLY AND POWER UNIT REMOVAL
7. Disconnect the connectors CN-A, CN-B and CN-C from
the control unit.
8. Remove the right panel assembly from the oven.
9. Now, the right panel assembly is free.
10.Remove the two (2) screws holding the power unit to
the right panel.
11.Release the two (2) tabs holding the power unit to the
right panel.
12.Now, the power unit is free.
1. Disconnect the power supply cord and remove the oven
from wall and remove outer case. (Refer to procedure of
"Removal of Oven from Wall" and "Outer case Removal")
2. Open the door and block it open.
3. To discharge the high voltage capacitor, wait for 60
seconds.
4. Remove the right panel assembly, referring to the
procedure of "RIGHT PANEL ASSEMBLY AND POWER
UNIT REMOVAL".
5. Remove the two (2) screws holding the latch hook to the
oven cavity front flange.
6. Remove the latch hook from the oven cavity front flange.
7. Disconnect the wire leads of each switch.
8. Remove each switch from the latch hook by pushing the
DOOR SENSING SWITCH, PRIMARY INTERLOCK SWITCH AND MONITOR SWITCH REMOVAL
one (1) stopper tab holding each switch.
9. Now, each switch is free.
Reinstall
1. Reinstall each switch in its place. The primary interlock
switch is in the lower position, door sensing switch is in
the upper position and the monitor switch is in the middle
position.
2. Reconnect wire leads to each switch. Refer to pictorial
diagram.
3. Secure the latch hook (with two (2) mounting screws) to
oven cavity front flange.
4. Make sure that the monitor switch is operating properly
and check continuity of the monitor circuit. Refer to
chapter "Test Procedure" and "Adjustment procedure".
1. Disconnect the power supply cord and remove the oven
from wall and remove outer case. (Refer to procedure of
"Removal of Oven from Wall" and "Outer case Removal")
2. Open the door and block it open.
3. To discharge the high voltage capacitor, wait for 60
seconds.
4. Remove the right panel assembly, referring to the
procedure of "RIGHT PANEL ASSEMBLY AND POWER
UNIT REMOVAL".
If the door sensing switch, primary interlock switch and
monitor switch do not operate properly due to a
misadjustment, the following adjustment should be made.
5. Loosen the two (2) screws holding latch hook to the oven
cavity front flange.
6. 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 primary interlock switch are activated with the
door closed. The horizontal position of the latch hook
should be adjusted so that the monitor switch is activated
with the door closed.
7. Secure the screws with washers firmly.
8. Check all of the switches operation. If any switch has not
activated with the door closed, loosen screw and adjust
the latch hook position.
DOOR SENSING SWITCH, PRIMARY INTERLOCK SWITCH AND MONITOR SWITCH ADJUSTMENT
After adjustment, check the following.
1. In and out play of 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 the door
toward the oven face. Both results (play in the door)
should be less than 0.5mm.
2. The door sensing switch and primary interlock switch
interrupt the circuit before the door can be opened.
3. Monitor switch contacts close when door is opened.
4. Reinstall outer case and check for microwave leakage
around door with an approved microwave survey meter.
(Refer to Microwave Measurement Procedure.)
Figure C-1. Latch Switch Adjustments
Latch hook
Door sensing
switch
Latch heads
Monitor switch
Primary interlock switch
Open lever
Door
