Power Supply Cord Replacement; 1St. Latch Switch, 2Nd. Interlock Relay Control Switch And Monitor Switch Adjustment - Sharp R-380LS Service Manual

2. Hold the center of the bracket which supports the shaft of the fan
motor on the flat table.
3. Apply the screw lock tight into the hole (for shaft) of the fan blade.
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.
5. Install the fan motor assembly to the oven cavity back plate with
two (2) screws.
Coil
Groove joint pliers
Stator
Gap
Bracket
Rotor
Rear View

[11] POWER SUPPLY CORD REPLACEMENT

1. REMOVAL
1. CARRY OUT 3D CHECKS.
2. Remove the single (1) screw holding the green/yellow wire to the
oven cavity back plate.
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 Fig-
ure C-3(b).
5. Now, the power supply cord is free.
Power Supply
Cord
Green/Yellow
Wire
Brown Wire
Blue
Wire
Figure C-3(a) Power Supply Cord Replacement
[12] 1ST. LATCH SWITCH, 2ND. INTERLOCK RELAY CONTROL SWITCH AND MONITOR
SWITCH ADJUSTMENT
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.
Shaft
Axis
Stator
Rotor
Side View
Oven Cavity
Back Plate
Screw
Noise Filter
11 – 4
CAUTION: • Do not hit the fan blade strongly when installed because
the bracket may be disfigured.
• Make sure that the fan blade rotates smooth afterinstal-
lation.
• Make sure that the axis of the shaft is not slanted.
6. Connect the wire leads to the magnetron and fan motor, referring to
the pictorial diagram.
These are the positions
that should be pinched
with pliers.
Table
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.
Moulding
Cord Stopper
Oven Cavity
Back Plate
Figure C-3(b) Power Supply Cord Replacement
2. REINSTALL
1. Reinstall each switch in its place. The 1st. latch and monitor
switches are in the lower position and the2nd. 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.
R380L(W)
Shaft
Center of
bracket
Power Supply
Cord
Square
Hole