Sharp R-403KK Service Manual page 28

R - 4 0 5 K S
R - 4 0 3 K K
Installation
1. Remove remaining adhesive on the control panel frame surfaces with a soft cloth soaked in alcohol.
2. Make sure that the LCD sheet and the liquid crystal display is installed in position.
3. Remove the backing paper from the new membrane switch and ribbon cable.
4. Insert the ribbon cable of the membrane switch into the slit of the control panel frame.
5. Adjust the upper edge and right edge of the membrane switch to the small depression on the surface of the control panel
frame.
6. Attach the membrane switch to the control panel frame by rubbing with a soft cloth not to scratch.
7. Remove the backing paper from the new graphic sheet.
8. Adjust the upper edge and right edge of the graphic sheet to the large depression on the surface of the control panel frame.
9. Attach the graphic sheet to the control panel frame by rubbing with a soft cloth not to scratch.
10. Attach the ribbon cable to the control panel frame rear side.
11. Place the edge of the membrane switch's ribbon cable on the lower portion of the liquid crystal display.
12. Insert the rubber connector into the long slit on the control panel frame.
13. Reinstall the control unit to the control panel frame with the three (3) screws.
NOTE:
Do not touch the contact surface of the ribbon cable (edge) and the rubber connector with a finger directly not to be
oxidized.
If display digits are missing or scrambled, remove control unit and make sure that there is not any trash or foreign
substance on the contact surface of the rubber connector. Use an adhesive tape to clean the contact surface of the
rubber connector.
(* Heat gun will soften adhesive.)
Liquid crystal
displa y
Membrane
Graphic
switch
sheet
1. Disconnect the power supply cord.
2. Remove turntable and turntable support from oven cavity.
3. Lay the oven on it's backside. Remove the turntable motor
cover by snipping off the material in four corners.
4. Where the corners have been snipped off bend corner
areas flat. No sharp edges must be evident after removal
of the turntable motor cover.
Control panel frame
LCD sheet
Ribbon
cab le
R-405KS Graphic Sheet and Membrane Switch Replacement
TURNTABLE MOTOR REMOVAL
Ribbon cable
Liquid crystal
of membr ane
displa y
switch
Contact
surface
Long slit
Slit
Contact surface
5. Disconnect wire leads from turntable motor.
(See "Positive lock connector removal")
6. Remove one (1) screw holding turntable motor to oven
cavity.
7. Now the turntable motor is free.
8. After replacement, use the one (1) screw provided with the
TTM Kit, to attach the turntable motor cover.
26
Control panel frame
(Rear side)
Rubber connector