Control Panel Assembly Removal; Turntable Motor Removal; Cooling Fan Motor Removal - Sharp R-204EWA Service Manual

Service manual
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R - 2 0 4 E W A
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 the leads from the control unit.
5. Remove the one (1) screw holding the chassis support
to the front plate of the oven cavity.
6. Remove the chassis support from the oven.
7. Lift up the control panel and release it from the oven
cavity.
8. Now, the control panel assembly is free.
Removal
1. Disconnect the power supply cord.
2. Remove the turntable and turntable support from the
oven cavity.
3. Turn the oven over.
4. Cut the four (4) bridges holding the turntable motor cover
to the bottom plate with the cutting pliers as shown in
Figure C-3.
CAUTION: DO NOT DROP THE TURNTABLE MOTOR
COVER INTO THE OVEN AFTER CUTTING
THE BRIDGES. BECAUSE IT WILL DAMAGE
THE WIRE LEADS OF THE MOTOR AND IT IS
DIFFICULT TO REMOVE IT OUT OF THE
OVEN.
5. Remove the turntable motor cover from the bottom plate.
6. Disconnect the wire leads from the turntable motor.
7. Remove the single (1) screw holding the turntable motor
to the oven cavity.
Screw; XHTSD40P08RV0 or
XFPSD40P08K00
Cutting Pliers
Bridges
Bottom Plate
Figure C-3. Turntable Motor Cover
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 the wire leads from the fan motor.
5. Remove the one (1) screw holding the chassis support
to the oven cavity front plate.
6. Remove the chassis support .
7. Release the filament lead of the power transformer and
the H.V. wire from the fan duct.
8. Remove the one (1) screw holding the light mounting

CONTROL PANEL ASSEMBLY REMOVAL

TURNTABLE MOTOR REMOVAL

Tab
Turnrable
Hole
Motor Cover

COOLING FAN MOTOR REMOVAL

NOTE: 1. Before attaching a new key unit, remove remaining
adhesive on the control panel frame surfaces
completely with alcohol.
2. When attaching the key unit to the control panel
frame, adjust the upper edge and right edge of
the key unit to the correct position of control panel
frame.
3. Stick the key unit firmly to the control panel frame
by rubbing with soft cloth not to scratch.
8. Remove the turntable motor from the oven cavity.
9. Remove the O-ring and washer from the turntable motor.
10.Now, the turntable motor is free.
Reinstallation
1. Remove the any sharp edges on the turntable motor
cover and the bottom plate with the cutting pliers.
2. Re-install the O-ring.
3. Apply the grease (Shinetsu silicone grease G-420 of
Sinetsu Chemical Co. Ltd. or Toray Silicone grease SH-
14 of Toray Silicone Co., Ltd.) to the O-ring and the base
of the turntable motor shaft as shown in Figure C-4.
4. Re-install the turntable motor with the O-ring and washer
to the oven cavity with the single (1) screw.
5. Re-connect the wire leads to the turntable motor.
6. Insert the tab of the turntable motor cover into the hole of
the bottom plate as shown in Figure C-3.
7. Re-install the turntable motor cover to the bottom plate
with
one
(1)
XFPSD40P08K00 as shown in Figure C-3.
Washer
O-ring
Base of turntable
motor shaft
Figure C-4. Washer and O-ring Installation and
Grease Applying.
plate to the oven cavity.
9. Release the wire leads (to the oven lamp) from the hole
of the fan duct.
10.Remove the one (1) screw holding the fan duct to the
waveguide flange.
11.Release the fan motor assembly from the oven cavity.
12.Remove the fan blade from the fan motor shaft according
to the following procedure.
13.Hold the edge of the rotor of the fan motor by using a pair
of groove joint pliers.
24
screw
XHTSD40P08RV0
Washer
Apply the
grease hear
O-ring
Turntable motor
or

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