Service manual

R-204(W)
21
POWER SUPPLY CORD REPLACEMENT
Removal
1. CARRY OUT 3D CHECKS.
2. Remove the single (1) screw holding the green/yellow
wire to the oven cavity.
3. Disconnect the leads of the power supply cord from the
noise filter, referring to the Figure C-3 (a).
4. Release the moulding cord stopper of the power supply
cord from the square hole of the oven cavity back plate,
referring to the Figure C-3 (b).
5. 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 rear cabinet, referring to the
Figure C-3 (b).
2. Install the earth wire lead of power supply cord and the
earth angle to the oven cavity 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.
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 the switch lever from the oven cavity
5. Remove latch hook assembly from oven flange.
6. Push outward on the two (2) retaining tabs holding
switch in place.
7. Switch is now free.
1ST. INTERLOCK SWITCH (SW1), 2ND. INTERLOCK RELAY CONTROL SWITCH (SW3) AND
MONITOR SWITCH (SW2) REMOVAL
Re-install
1. Re-install each switch in its place. The secondary
interlock/monitor switches are in the lower position and
the door sensing 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. Install the switch lever to the oven cavity
5. Make sure that the monitor switch is operating properly
and check continuity of the monitor circuit. Refer to
chapter "Test Procedure" and Adjustment procedure.
1ST. INTERLOCK SWITCH (SW1), 2ND. INTERLOCK RELAY CONTROL SWITCH (SW3) AND
MONITOR SWITCH (SW2) ADJUSTMENT
Power Supply Cord
Oven Cavity
Back Plate
Screw
Green/Yelow
Wire
Brown Wire
Fuse
Blue Wire
Noise Filter
Power Supply
Cord
Oven Cavity
Back Plate
Square
Hole
Moulding
Cord Stopper
Figure C-3 (a). Power Supply Cord Replacement Figure C-3 (b) Power Supply Cord Replacement
1. CARRY OUT 3D CHECKS.
If the 1st. interlock switch, 2nd. interlock relay control
switch and monitor switch do not operate properly due to
a misadjustment, the following adjustment should be
made.
2. Loosen the two (2) screws holding latch hook to the
oven cavity front flange.
3. 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.
interlock switch and 2nd. interlock relay control 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.
4. Secure the screws with washers firmly.
5. Check the operation of all switches. If each switch has
not activated with the door closed, loosen screw and
adjust the latch hook position.
Figure C-4. Latch Switch Adjustments
Latch Heads
Latch Hook
Door
SW3:
2nd. Interlock Relay
Control Switch
SW2:
Monitor Switch
Switch Lever
SW1:
1st. Interlock
Switch