Power Supply Cord Replacement; Door Sensing Switch/Secondary Interlock Switch And Monitor Switch Removal - Sharp R-308KK Service Manual

Coil
Stator
Gap
Bracket
Rotor

[11] POWER SUPPLY CORD REPLACEMENT

1. REMOVAL
1. Disconnect the power supply cord, and remove outer case.
2. Open the door and block it open.
3. Discharge high voltage capacitor.
4. Remove the single (1) screw holding the green wire to the oven
cavity back plate.
5. Disconnect the leads of the power supply cord from the noise filter,
referring to the Figure C-3(a).
6. Release the moulding cord stopper of the power supply cord from
the square hole of the oven cavity back plate, referring to the Fig-
ure C-3(b).
Power Supply Cord
Screw
Gray Wires
Connect the wire lead which has the black case to
the terminal "L" of the noise filter.
Figure C-3(a) Power Supply Cord Replacement
[12] DOOR SENSING SWITCH/SECONDARY INTERLOCK SWITCH AND MONITOR SWITCH
REMOVAL
1. REMOVAL
1. Disconnect the power supply cord and remove outer case.
2. Open the door and block it open.
3. Discharge high voltage capacitor.
4. Disconnect wire leads from the switches.
5. Remove two (2) screws holding latch hook to oven flange.
6. Remove latch hook assembly from oven flange.
7. Push outward on the two (2) retaining tabs holding switch in place.
8. Switch is now free. At this time switch lever will be free, do not lose
it.
Groove joint pliers
Shaft
Axis
Stator
Rear View
Oven Cavity
Back Plate
Green Wire
Noise Filter
Fuse
These are the positions
that should be pinched
with pliers.
Rotor
Side View
7. Now, the power supply cord is free.
2. 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 to the oven cavity
back plate with one (1) screw and tight the screw.
3. Connect the gray 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.
Moulding
Cord Stopper
Oven Cavity
Back Plate
2. REINSTALL
1. Reinstall 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. 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.
11 – 5
Table
Power Supply
Cord
Square
Hole
Figure C-3(b) Power Supply Cord Replacement
R308KW
Shaft
Cen
brac