12 – 5
2. REINSTALL
1. Insert the moulding cord stopper of power supply cord into the
square hole of the rear cabinet, referring to the Figure C-3 (b).
2. Install the earth wire lead of power supply cord to the oven cavity
back plate with one (1) screw and tight the screw.
3. Connect the brown and blue wire leads of power supply cord to the
noise filter correctly, referring to the Pictorial Diagram.
4. Re-install outer case and check that the oven is operating properly.
Figure C-3(b) Power Supply Cord Replacement
[11] 1ST. LATCH SWITCH, 2ND. INTERLOCK RELAY CONTROL SWITCH AND MONITOR
SWITCH REMOVAL
1. REMOVAL
1. CARRY OUT 3D CHECKS.
2. Disconnect wire leads from the switches.
3. Remove two (2) screws holding latch hook to oven flange.
4. Remove latch hook assembly from oven flange.
5. Push outward on the two (2) retaining tabs holding switch in place.
6. Switch is now free. At this time switch lever will be free, do not lose
it.
2. REINSTALL
1. Reinstall each switch in its place. The 1st. latch and monitor
switches are in the lower position and the 2nd. interlock relay con-
trol switch is in the upper position.
2. Reconnect 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.
[12] 1ST. LATCH SWITCH, 2ND. INTERLOCK RELAY CONTROL SWITCH AND MONITOR
SWITCH ADJUSTMENT
1. Adjustment
If the 1st. latch switch, 2nd. interlock relay control switch and monitor
switch do not operate properly due to a misadjustment, the following
adjustment should be made.
1. Loosen the two (2) screws holding latch hook to the oven cavity
front flange.
2. 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 1st.latch switch and 2nd. interlock relay control switch are acti-
vated 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.
3. Secure the screws with washers firmly.
4. Check all switches operation. If each switch has not activated with
the door closed, loosen screw and adjust the latch hook position.
2. 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 1st. latch switch and 2nd. interlock relay controls witch inter-
rupt 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-4. Latch Switch Adjustments
Power Supply
Cord
Oven Cavity
Back Plate
Square
Hole
Moulding
Cord Stopper
Latch Hook
Monitor Switch
2nd. Interlock
Relay Control
Switch
1st Latch Switch
Latch
Heads
Door
R-350Y(S)
