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R-297ST
18
Removal
1. Disconnect the oven from the power supply.
2. Remove the turntable and turntable support from the
2. Remove the turntable and turntable support from the
oven cavity.
3. Turn the oven over.
4. Remove the one (1) screw holding the turntable motor
4. Remove the one (1) screw holding the turntable motor
cover to the bottom plate.
5. Now, the turntable motor cover is free.
6. Disconnect the wire leads from the turntable motor.
7. Remove the single (1) screw holding the turntable
6. Disconnect the wire leads from the turntable motor.
7. Remove the single (1) screw holding the turntable
motor to the oven cavity.
8. Remove the turntable motor from the oven cavity.
9. Remove the TTM packing from the turntable motor.
10.Now, the turntable motor is free.
9. Remove the TTM packing from the turntable motor.
10.Now, the turntable motor is free.
TURNTABLE MOTOR REMOVAL
Re-install
1. Re-install the TTM packing.
2. Re-install the turntable motor with theTTM packing
2. Re-install the turntable motor with theTTM packing
with the single (1) screw.
3. Re-connect the wire leads to the turntable motor.
4. Insert the tab of the turntable motor cover into the hole
4. Insert the tab of the turntable motor cover into the hole
of the bottom plate.
5. Re-install the turntable motor cover to the bottom plate
with one (1) screw.
Figure C-3. TTM packing Installation
3. Remove the three (3) screws holding the control unit to the
control panel frame. And remove the control unit.
4. Remove the rubber connector from the long slit on the
control panel frame.
5. Tear away the graphic sheet from the control panel frame.
6. Tear away the membrane switch from the control panel
6. Tear away the membrane switch from the control panel
frame.
Installation
1. Remove remaining adhesive on the control panel frame
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
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.
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
7. Adjust the upper edge and right edge of the graphic sheet
to the large depression on the surface of the control panel
frame.
frame.
8. Attach the graphic sheet to the control panel frame by
rubbing with a soft cloth not to scratch.
9. Tear the small backing paper from the ribbon cable of the
membrane switch.
10. Insert the two (2) holes of the ribbon cable into the two (2)
pins of the control panel frame (rear side).
11. Attach the ribbon cable to the control panel frame rear side.
12. Place the edge of the membrane switch’s ribbon cable on
12. Place the edge of the membrane switch’s ribbon cable on
the lower portion of the liquid crystal display.
13. Insert the rubber connector into the long slit on the control
panel frame.
14. Reinstall the control unit to the control panel frame with
the three (3) screws.
NOTE:
Do not contact the contact surface of the ribbon cable
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
missing or scrambled, remove control unit and clean
contact surface with alcohol. After cleaning, do not
attach the rubber 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
missing or scrambled, remove control unit and clean
contact surface with alcohol. After cleaning, do not
attach the rubber 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-2. Graphic Sheet and Membrane Switch
Replacement
COOLING FAN MOTOR REMOVAL
Rubber connector
Contact surface
Ribbon cable
of membrane
switch
of membrane
switch
Liquid crystal
display
display
Control panel frame
(Rear side)
(Rear side)
Long slit
Pin
Graphic sheet
Membrane
switch
switch
Small
depression
depression
Large
depression
depression
Small backing
paper
paper
Ribbon
cable
cable
Control panel frame
Slit
TTM packing
Turntable motor
REMOVAL
1. CARRY OUT 3D CHECKS.
2. Remove the magnetron from the waveguide. Refer to
1. CARRY OUT 3D CHECKS.
2. Remove the magnetron from the waveguide. Refer to
chapter "MAGNETRON REMOVAL"
3. Disconnect the wire leads from the fan motor.
4. Release the wire leads from the hole of the fan duct.
5. Remove the three (3) screws holding the fan duct to the
4. Release the wire leads from the hole of the fan duct.
5. Remove the three (3) screws holding the fan duct to the
oven cavity.
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