Read Sharp R-657SL (serv.man10) Service Manual online
R657(W)
11 – 3
[7] TURNTABLE MOTOR REPLACEMENT
1. Disconnect the oven from the power supply.
2. Remove the turntable motor cover by snipping off the material in
four corners.
3. Where the corners have been snipped off bent corner areas flat. No
sharp edge must be evident after removal of turntable motor cover.
4. Disconnect the wire leads from the turntable motor and remove the
one (1) screw holding the turntable motor.
5. Turntable motor is now free.
6. After replacement use one (1) screw to fit the turntable motor
cover.(XOTS740P08000)
[8] CONTROL PANEL ASSEMBLY REMOVAL
1. CARRY OUT 3D CHECKS.
2. Disconnect all the wire leads and the connectors from the control
panel.
3. Straighten the tab holding the control panel to the oven cavity face.
4. Lift up the control panel assembly and pull it forward.
Now the control panel assembly is free.
[9] GRAPHIC SHEET AND MEMBRANE SWITCH REPLACEMENT
1. REMOVAL
1. CARRY OUT 3D CHECKS.
2. Remove the control panel assembly, referring to chapter of CON-
TROL PANEL ASSEMBLY REMOVAL.
3. Disconnect the ribbon cable of the membrane switch from the con-
nector (CN-G) on the control unit.
4. Tear away the graphic sheet from the control panel frame.
5. Tear away the membrane switch from the control panel frame.
2. REINSTALL
1. Remove remaining adhesive on the control panel frame surfaces
with a soft cloth soaked in alcohol.
2. Tear the backing paper from the new membrane switch.
3. Insert the ribbon cable of the membrane switch into the slit of the
control panel frame.
4. Adjust the upper edge and right edge of the membrane switch to
the small depression on the surface of the control panel frame.
5. Attach the membrane switch to the control panel frame by rubbing
with a soft cloth not to scratch.
6. Tear the backing paper from the new graphic sheet.
7. Adjust the upper edge and right edge of the graphic sheet to the
large depression on the surface of the control panel frame.
8. Attach the graphic sheet to the control panel frame by rubbing with
a soft cloth not to scratch.
9. Connect the ribbon cable of the membrane switch to the connector
(CN-G) on the control unit.
NOTE: Do not contact the contact surface of the ribbon cable
(edge) and the rubber connector directly with your fin-
gers. This is to avoid oxidized. If display digits are miss-
ing or scrambled, remove control unit and clean contact
surface with alcohol. After cleaning, do not attach the rub-
ber connector until alcohol dries up. Do not use alcohol
or solution to clean the rubber connector. Make sure that
there is no trash or foreign substance on contact surface
of the rubber connector.
gers. This is to avoid oxidized. If display digits are miss-
ing or scrambled, remove control unit and clean contact
surface with alcohol. After cleaning, do not attach the rub-
ber connector until alcohol dries up. Do not use alcohol
or solution to clean the rubber connector. Make sure that
there is no trash or foreign substance on contact surface
of the rubber connector.
Figure C-1. Graphic Sheet and Membrane Switch Replace-
ment
[10] OVEN LAMP REMOVAL
1. CARRY OUT 3D CHECKS.
2. Disconnect the wire lead from the oven lamp.
3. Lift up the oven lamp from the clips of the air intake duct.
4. Now, the oven lamp is free.
Oven lamp
[11] GRILL HEATING ELEMENTS REMOVAL
1. CARRY OUT 3D CHECKS.
2. Remove the two (2) screws holding the two (2) terminals of the
main wire harness to the grill heating element.
Graphic sheet
Ribbon
cable
cable
Connector
(CN-G)
(CN-G)
Small depression
Control panel frame
Slit
Control unit
Membrane
switch
switch
Ribbon
cable
cable
Large
depression
depression
BULB
LOCK
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