Read Sharp R-269WM (serv.man11) Service Manual online
R269WM
11 – 4
2. REINSTALL
1. Insert the moulding cord stopper of power supply cord into the
square hole of the rear cabinet, referring to the Figure C-3 (b).
2. Install the earth wire lead of power supply cord to the oven cavity
back plate with one (1) screw and tight the screw.
3. Connect the brown and blue wire leads of power supply cord to the
noise filter correctly, referring to the Pictorial Diagram.
Figure C-3(a) Power Supply Cord Replacement Figure C-3(b) Power Supply Cord Replacement
[10] CONTROL PANEL ASSEMBLY REMOVAL
1. CARRY OUT 3D CHECKS.
2. Disconnect the leads from the control unit.
3. Remove the one (1) screw holding the control panel to the front
panel of the oven cavity.
4. Lift up the control panel assembly and release it from the oven cav-
ity.
5. Now, the control panel assembly is free.
[11] GRAPHIC SHEET AND MEMBRANE SWITCH REPLACEMENT
1. REMOVAL
1. CARRY OUT 3D CHECKS.
2. Remove the control panel assembly, referring to chapter of CON-
TROL PANEL ASSEMBLY REMOVAL.
3. Disconnect the ribbon cable of the membrane switch from the con-
nector (CN-G) on the control unit.
4. Tear away the graphic sheet from the control panel frame.
5. Tear away the membrane switch from the control panel frame.
2. REINSTALL
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 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.
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 to the
large depression on the surface of the control panel frame.
8. Attach the graphic sheet to the control panel frame by rubbing with
a soft cloth not to scratch.
9. Connect the ribbon cable of the membrane switch to the connector
(CN-G) on the control unit.
NOTE: 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 miss-
ing or scrambled, remove control unit and clean contact
surface with alcohol. After cleaning, do not attach the rub-
ber 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 miss-
ing or scrambled, remove control unit and clean contact
surface with alcohol. After cleaning, do not attach the rub-
ber 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-4. Graphic Sheet and Membrane Switch Replacement
N
L
Power Supply
Cord
Cord
Oven Cavity
Back Plate
Back Plate
Screw
Green/Yellow
Wire
Wire
Brown Wire
Blue
Wire
Wire
Noise Filter
WHT
RED
P ower S upply
C ord
C ord
O ven C avity
B ack P late
B ack P late
S quare
Hole
Hole
Moulding
C ord S topper
C ord S topper
Graphic sheet
Ribbon
cable
cable
Connector
(CN-G)
(CN-G)
Small depression
Control panel frame
Slit
Control unit
Membrane
switch
switch
Ribbon
cable
cable
Large
depression
depression
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