R-21JCA-F
23
Removal
1. Disconnect the power supply cord and then remove outer case.
2. Open the door and block it open.
3. Discharge high voltage capacitor.
4. Remove the one (1) screw holding the green wire to the
cavity rear plate.
5. Disconnect the wire leads of the power supply cord from the
noisew filter.
6. Release the power supply cord from the oven cavity rear
plate.
POWER SUPPLY CORD REPLACEMENT
7. Now, the power supply cord is free.
Re-install
1. Insert the moulding cord stopper of power supply cord into
the square hole of the oven cavity rear plate, referring to the
Figure C-3b.
2. Install the earth wire lead of power supply cord to the cavity
rear plate with one (1) screw and tighten the screw.
3. Connect the wire leads of power supply cord to the noise
filter, referring to the Pictorial Diagram.
DOOR SENSING SWITCH/SECONDARY INTERLOCK SWITCH AND MONITOR SWITCH REMOVAL
1. Disconnect the power supply cord and then remove outer
case.
2. Open the door and block it open.
3. Discharge high voltage capacitor.
4. Remove the control panel assembly referring to "CONTROL
PANEL ASSEMBLY REMOVAL".
5. Disconnect the leads from all switches.
6. Remove the two (2) screws holding the latch hook to the
oven cavity.
7. Remove the latch hook.
8. Push the retaining tab outward slightly and remove the
switch.
Re-install
1. Re-install each switch in its place. The door sensing switch
and monitor switch are in the lower position and the
secondary interlock switch is in the upper position.
2. Re-connect wire leads to each switch.
Refer to pictorial diagram.
3. Secure latch hook (with two (2) mounting screws) to oven
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.
Figure C-3a. Power Supply Cord Replacement
Figure C-3b. Power Supply Cord Replacement
Power Supply Cord
Chassis
Support
WHT
RED
L
N
Screw
Green
Wire
Noise Filter
White Wire
Oven Cavity
Rear Plate
Black Wire
Power
Supply Cord
Moulding
Cord Stopper
Oven Cavity
Rear Plate
Square Hole
Figure C-4. Switches
Latch Hook
Tabs
Tab
Tab
Tab
Tab
Secondary
Interlock
Switch
Monitor
Switch
Door
Sensing
Switch
1. Disconnect the power supply cord and then remove outer
case.
2. Open the door and block it open.
3. Discharge high voltage capacitor.
If the door sensing switch, secondary interlock switch and
monitor switch do not operate properly due to a misadjustment,
the following adjustment should be made.
4. Loosen the two (2) screws holding the 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
DOOR SENSING SWITCH/SECONDARY INTERLOCK SWITCH AND MONITOR SWITCH ADJUSTMENT
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 switch are activated with the door
closed. The horizontal position of the latch hook should be
adjusted so that the plunger of the monitor switch is pressed
with the door closed.
6. Secure the screws with washers firmly.
7. Check the operation of all switches. If each switch has not
activated with the door closed, loosen screw and adjust the
latch hook position.
