Sharp R-950A Service Manual page 33

R-950A
1. CARRY OUT 3D CHECKS.
2. Remove the two (2) screws holding grill duct cover to
the steam duct and the divide plate (right).
3. Remove the grill duct cover from the oven cavity.
4. Remove the one (1) screw holding the divide plate
(right) to the oven cavity, and remove the one (1) screw
holding the thermistor harness to the divide plate (right).
5. Remove the divide plate (right) from the oven cavity.
6. Remove four (4) screws holding steam duct to the oven
cavity.
7. Remove the steam duct from the oven cavity.
8. Disconnect the wire leads from the grill heaters.
CONTROL PANEL ASSEMBLY AND CONTROL UNIT REMOVAL
To remove the control panel, proceed as follows:
1. CARRY OUT 3D CHECKS
2. Disconnect connector CN-A, CN-E and CN-F from the
control unit.
3. Disconnect the wire leads from relays RY1, RY2 and RY3.
4. Remove one (1) screw holding the control panel back
plate to the chassis support.
5. Remove the one (1) screw holding the bottom edge of
the back plate to the cabinet base.
6. Remove two (2) screws holding the back plate to the
oven cavity flange.
7. Lift up and pull the control panel forward.
Replacement of individual component is as follows:
CONTROL UNIT AND KEY UNIT
1. Disconnect the flat ribbon cable from the control unit.
TURNTABLE MOTOR AND/OR COUPLING REMOVAL
1. Disconnect the oven from power supply.
2. Remove one (1) screw holding the turntable motor cover
to the base cabinet and take off the turntable motor cover.
3. Disconnect wire lead from the turntable motor.
1. CARRY OUT 3D CHECKS.
2. Disconnect wire leads from the convection motor.
Remove the convection fan belt and pulley(M).
3. Remove two (2) screws holding the convection motor
mounting angle to the heater duct and base cabinet.
1. CARRY OUT 3D CHECKS.
2. Remove cooling fan motor and magnetron refer to
"Cooling Fan Motor Removal" and "Magnetron
Removal".
3. Disconnect wire leads from damper motor and damper
switch.
4. Remove two(2) ovenside screws holding damper motor
REMOVAL
1. CARRY OUT 3D CHECKS.
2. Disconnect the wire leads from the fan motor and
thermal cut-out.
GRILL HEATER REMOVAL
9. Lay down the two (2) tabs holding the grill cover to the
10.Remove the grill cover from the oven cavity by sliding
11.Make the tabs of heater mounting plate straight.
12.Remove the heater mounting plate, grill heaters and
13.Remove the heater mounting plate from the grill heating
14.Remove two (2) screws holding the short terminal to
15.Now, the grill heaters are free.
2. Remove the two (2) screws holding the panel frame to
3. Separate the panel frame and back plate.
4. Remove the three (3) screws holding the control unit to
5. Lift up the control unit .
6. Now, the control unit and frame assembly are separated.
NOTE: 1. Before attaching a new key unit, remove remaining
4. Remove the two (2) screws holding the turntable motor
5. Pull the turntable coupling out of the oven cavity.
6. Turntable coupling and motor will be free.
CONVECTION MOTOR REMOVAL
4. Take out the convection motor assembly from the unit.
5. Remove two (2) screws and nuts holding the motor to
6. Convection motor is now free.
DAMPER ASSEMBLY REMOVAL
5. Damper assembly is free.
6. Remove one (1) screw holding damper motor to damper
7. Damper motor and switch are free.
FAN MOTOR REPLACEMENT
3. Remove the three (3) screws holding the chassis
26
oven cavity.
it toward the magnetron.
the short terminal together from the grill cover.
elements.
the grill heaters.
the back plate.
the panel frame.
adhesive on the control panel frame surfaces
completely with a soft cloth soaked in 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.
to the mounting plate of the oven cavity bottom.
The convection motor assembly is now free.
mounting angle.
angle to thermal protection plate (right).
motor angle and one (1) screw holding damper switch
to damper motor angle.
support to rear cabinet, control panel back plate and
waveguide.