Sharp R930AK - 1.5 CF 900 Watts Convection Sensor Interactive; Charcoal Service Manual page 31

1. Disconnect the oven from power supply.
Remove the turntable tray, and the turntable support out
of the oven cavity.
2. Turn the oven upside down and remove one (1) screw
holding the turntable motor cover to the base plate and
take off the turntable motor cover.
1. Disconnect oven from power supply and remove outer
case.
2. Discharge the high voltage capacitor.
3. Disconnect wire leads from damper motor and damper
switch.
4. Remove two (2) oven side screws holding damper motor
(HEATING ELEMENT/CONVECTION FAN/CONVECTION MOTOR/THERMISTOR)
THERMISTOR REMOVAL
1. Disconnect oven from power supply and remove outer
case cabinet.
2. Discharge the high voltage capacitor.
Disconnect wire leads from H.V. capacitor and remove
four (4) screws holding rear cabinet to bottom plate and
three (3) screws holding to heater unit assembly and two
(2) screws holding steam duct to top of oven cavity.
Disconnect wire leads from power supply cord terminals.
3. Disconnect wire leads from thermistor. Remove two (2)
screws from thremistor.
4. Disconnect wire leads from convection motor, thermal
cut-out and heater element.
5. Remove nine (9) screws holding heater duct to the oven
cavity.
6. Remove two (2) screws holding heater duct to base
cabinet. Release two (2) snap bands holding wire harness
to the thermal cover (convection).
7. The heater unit is now free.
1. Disconnect oven from power supply and remove outer
case.
2. Discharge high voltage capacitor.
3. Bend the tab of the air guide holding the lamp socket.
4. Lift up the oven lamp socket.
5. Pull the wire leads from the oven lamp socket by pushing
the terminal hole of the oven lamp socket with the small
flat type screw driver.
6. Now, the oven lamp socket is free.
1. Disconnect oven from power supply and remove outer
case.
2. Discharge high voltage capacitor.
3. Disconnect the wire leads from the fan motor.
4. Remove one (1) screw holding the fan motor grounding
wire to the air guide (Right).
TURNTABLE MOTOR REMOVAL
DAMPER ASSEMBLY REMOVAL
HEATER UNIT ASSEMBLY REMOVAL
OVEN LAMP AND LAMP SOCKET REMOVAL
FAN MOTOR REMOVAL
3. Disconnect wire lead from the turntable motor.
4. Remove the two (2) screws holding the turntable motor
and coupling mounting plate to the oven cavity bottom.
5. Turntable motor, Coupling mounting plate and Thermal
protection plate bottom will be free.
angle to thermal protection plate (right).
5. Damper assembly is free.
6. Remove one (1) screw holding damper motor to damper
motor angle and one (1) screw holding damper switch to
damper motor angle.
7. Damper motor and switch are free.
HEATING ELEMENT REMOVAL
1. Remove two (2) screws holding heating element to
heater duct.
2. Loosen two (2) screws holding holders to heater duct
and take heating element out of heating element holders.
3. Heating element is free.
NOTE: After installed the heating element completely,
bent top of the heating element holder to inside
using by long nose pliers as shown following
illustration.
Terminal
Wire lead
Figure C-3. Oven lamp socket
5. Remove three (3) screws holding the chassis support to
the rear cabinet, waveguide and control panel back
plate.
6. Remove the chassis support from the oven.
7. Remove one (1) screw holding the magnetron air guide
to the waveguide.
29
R-930AK
R-930AW
Long nose plier
Heating
element
Heating element
holder
Oven lamp
socket
Terminal hole
Flate type small
screw driver