Read Sharp R-90GCK (serv.man10) Service Manual online
27
R-90GCK
1. CARRY OUT 3D CHECKS.
2. Remove the back plate from the oven, referring to
2. Remove the back plate from the oven, referring to
“BACK PLATE REMOVAL”.
3. Remove the door assembly from the oven, referring to
“DOOR REPLACEMENT”, and remove the door
springs, the door cam right and the door cam left.
springs, the door cam right and the door cam left.
4. Remove the high voltage transformer, magnetron,
magnetron separator, high voltage capacitor assembly,
fan motor (high voltage transformer side) with fan
mounting angle, and fan motor (magnetron side),
referring to their removal procedures.
fan motor (high voltage transformer side) with fan
mounting angle, and fan motor (magnetron side),
referring to their removal procedures.
5. Disconnect the wire leads from all electrical parts
except for the turntable motor, monitor switch,
secondary interlock switch, door sensing switch and
3rd. latch switch.
secondary interlock switch, door sensing switch and
3rd. latch switch.
6. Remove the two (2) screws holding the latch hook right
and latch hook left from the oven cavity front plate.
7. Remove the two (2) screws holding the right and left
chassis supports to the oven cavity front plate.
8. Remove the two (2) screws holding the exhaust duct to
the oven cavity. And remove it.
9. Remove the one (1) screw holding the damper duct assembly
to the oven cavity from inside of the oven cavity.
10.Remove the two (2) screws holding the damper duct
assembly to the thermal cover upper and the waveguide.
11.Remove the damper duct assembly from the oven.
12.Remove the two (2) screws holding the separator left
12.Remove the two (2) screws holding the separator left
to the thermal cover upper. And remove it.
13.Disconnect the connector of the touch control
transformer from the power unit.
14.Remove the one (1) screw holding the touch control
transformer to the bottom plate. And remove it.
15.Remove the two (2) screws holding the PWB mounting
angle to the bottom plate.
HEATER DUCT LEFT ASSEMBLY, HEATER DUCT UPPER ASSEMBLY AND CONVECTION
DUCT ASSEMBLY REMOVAL
16.Remove the PWB mounting angle with the power unit
from the bottom plate.
17.Remove the three (3) screws holding the thermal cover
left to the heater duct left.
18.Remove the one (1) screw holding the thermal cover
left to the thermal cover upper.
19.Straighten the three (3) tabs holding the thermal cover
left to the oven cavity, and remove the thermal cover
left and the thermal insulation left from the oven cavity.
left and the thermal insulation left from the oven cavity.
20.Remove the two (2) screws holding the thermal cover
upper to the heater duct upper.
21.Straighten the four (4) tabs holding the thermal cover
upper to the oven cavity, and remove the thermal cover
upper and the thermal insulation upper from the oven
cavity.
upper and the thermal insulation upper from the oven
cavity.
22.Straighten the two (2) tabs holding the thermal insulation
upper, and remove it.
23.Remove the fourteen (14) screws holding the heater
duct left to the oven cavity and the convection duct.
24.Remove the heater duct left assembly from the oven
cavity.
25.Now, the heater duct left assembly is free.
26.Remove the two (2) screws holding the convection
26.Remove the two (2) screws holding the convection
motor mounting angle to the bottom plate from under
the bottom plate.
the bottom plate.
27.Remove the thirteen (13) screws holding the convection
duct to the oven cavity and the heater duct upper.
28.Remove the convection duct assembly from the oven
cavity.
29.Now, the convection duct assembly is free.
30.Remove the nine (9) screws holding the heater duct
30.Remove the nine (9) screws holding the heater duct
upper to the oven cavity.
31.Remove the heater duct upper from the oven cavity.
32.Now, the heater duct upper assembly is free.
32.Now, the heater duct upper assembly is free.
1. CARRY OUT 3D CHECKS.
2. Remove the back plate from the oven, referring to
2. Remove the back plate from the oven, referring to
“BACK PLATE REMOVAL”.
3. Remove the heater duct left assembly from the oven
cavity, referring to “HEATER DUCT LEFT ASSEMBLY,
H E A T E R D U C T U P P E R A S S E M B L Y A N D
H E A T E R D U C T U P P E R A S S E M B L Y A N D
SIDE HEATING ELEMENT REMOVAL
CONVECTION DUCT ASSEMBLY REMOVAL
4. Remove the one (1) screw holding the heater mounting
angle B to the heater duct left.
5. Remove the two (2) nuts holding the side heating
element to the heater duct left.
6. Now, the side heating element is free.
1. CARRY OUT 3D CHECKS.
2. Remove the back plate from the oven, referring to
2. Remove the back plate from the oven, referring to
“BACK PLATE REMOVAL”.
3. Remove the convection duct assembly from the oven
cavity, referring to “HEATER DUCT LEFT ASSEMBLY,
H E A T E R D U C T U P P E R A S S E M B L Y A N D
CONVECTION DUCT ASSEMBLY REMOVAL
H E A T E R D U C T U P P E R A S S E M B L Y A N D
CONVECTION DUCT ASSEMBLY REMOVAL
4. Loosen the one (1) screw holding the convection fan
assembly to the convection fan motor shaft with a
CONVECTION MOTOR REMOVAL
hexagon key wrench, and remove the convection fan.
5. Remove the four (4) screws holding the convection
motor mounting angle to the convection duct.
6. Remove the six (6) screws holding the convection
motor to the convection motor mounting angle.
7. Remove the convection motor from the convection
motor mounting angle.
8. Now, the convection motor is free.
TOP HEATING ELEMENT REMOVAL
1. CARRY OUT 3D CHECKS.
2. Remove the back plate from the oven, referring to
2. Remove the back plate from the oven, referring to
“BACK PLATE REMOVAL”.
3. Remove the heater duct left assembly from the oven
cavity, referring to “HEATER DUCT LEFT ASSEMBLY,
H E A T E R D U C T U P P E R A S S E M B L Y A N D
CONVECTION DUCT ASSEMBLY REMOVAL
H E A T E R D U C T U P P E R A S S E M B L Y A N D
CONVECTION DUCT ASSEMBLY REMOVAL
4. Remove the one (1) screw holding the heater mounting
Click on the first or last page to see other R-90GCK (serv.man10) service manuals if exist.