Power Supply Cord Replacement; Door Sensing Switch/Secondary Interlock Switch And Monitor Switch Removal - Sharp R-21LTF Service Manual

R21LTF
2. INSTALLATION
1. Install the fan motor to the fan duct with the two (2) screws.
2. Install the fan blade to the fan motor shaft according to the following
procedure.
3. Hold the center of the bracket which supports the shaft of the fan
motor on the flat table.
4. Install the fan blade to the shaft of fan motor by pushing the fan
blade with a small, light weight, ball peen hammer or rubber mallet.
CAUTION: DO not hit the fan blade hard when installing because the
bracket may be disfigured.
Coil
Groove joint pliers
Stator
Gap
Bracket
Rotor
Rear View

[11] POWER SUPPLY CORD REPLACEMENT

1. 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 noise
filter.
6. Release the power supply cord from the oven cavity rear plate.
7. Now, the power supply cord is free.
2. REINSTALL
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.
[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.
5. Install the fan duct to the oven cavity rear plate with the one (1)
6. Insert the tabs of the capacitor holder to the fan duct.
7. Install the capacitor holder to the oven cavity rear plate with the one
8. Re-connect the wire leads to the fan motor.
Shaft
These are the positions
Axis
that should be pinched
with pliers.
Stator
Rotor
Side View
3. Discharge high voltage capacitor.
4. Remove the control panel assembly, referring to section of CON-
11 – 4
MAKE SURE THAT THE FAN BLADE ROTATES
SMOOTH AFTER INSTALLED.
MAKE SURE THAT THE AXIS OF THE SHAFT IS NOT
SLANTED.
screw.
(1) screw.
Table
Oven Cavity
Rear Plate
Screw
Green
Wire
Black Wire
L
N
White Wire
Noise Filter
Figure C-3a. Power Supply Cord Replacement
Figure C-3b. Power Supply Cord Replacement
TROL PANEL ASSEMBLY REMOVAL.
Shaft
Center of
bracket
Power Supply Cord
Chassis
Support
RED
WHT
Moulding
Cord Stopper
Power
Supply Cord
Oven Cavity
Rear Plate
Square Hole