Sharp R-1880LS Service Manual page 45

CONTROL PANEL ASSEMBLY, CONTROL UNIT AND KEY UNIT REMOVAL
1. Disconnect the power supply cord.
. Open the door and block it open.
3. Remove one (1) screw holding the hood exhaust louver to
oven cavity front flange.
4. Remove the hood exhaust louver from the oven by pushing
the right and left tabs of the hood exhaust louver. (Refer to
procedure of "HOOD EXHAUST LOUVER REMOVAL")
5. Open the oven door.
6. Remove one (1) screw holding the control panel to the oven
cavity front face plate.
7. Release the control panel from the oven cavity front face plate
by lifting it up.
8. Disconnect the wire leads from the relays RY1, RY and
RY3.
9. Disconnect the connectors CN-A, CN-B CN-C, CN-E, CN-D
and CN-F from the control unit.
POSITIVE LOCK
1. Disconnect the power supply cord.and remove the oven from
wall and remove outer case. (Refer to procedure of "Removal
of Oven from Wall" and Outer case Removal")
. Open the door and block it open.
3. Discharge high voltage capacitor.
4. Pull down on the positive lock
5. Push the lever of positive lock
CAUTION: WHEN CONNECTING THE POSITIVE LOCK
CONNECTORS TO THE TERMINALS, INSTALL
THE POSITIVE LOCK
FACES YOU.
CONNECTOR (NO-CASE TYPE) REMOVAL
®
connector.
®
®
SO THAT THE LEVER
®
10. Remove the control panel assembly from the oven.
11. Now, the control panel assembly is free.
1. Remove six (6) screws holding the control unit to the control
panel.
13. Now, the control unit is free.
14. Remove the one (1) screw holding the key fixing plate to the
control panel.
15. Release the four (4) tabs holding the key fixing plate to the
control panel.
16. Remove the key fixing plate from the control panel.
17. Tear the key unit from the key fixing plate.
18. Now, the key unit is free
NOTES FOR KEY UNIT REPLACEMENT
1. Do not reuse the torn key unit because the performance of the
adhesive become weak.
. Before attaching a new key unit, wipe off remaining adhesive
on the key fixing plate surfaces completely with a soft cloth
soaked in alcohol.
3. When attaching the key unit to the key fixing plate, adjust
the upper edge and right edge of the key unit to the correct
position of key fixing plate.
4. Stick the key unit firmly to the key fixing plate by rubbing
with soft cloth not to scratch.
Positive lock¨
connector
Lever
®
Positive lock
45
R-1880LS/LST
Terminal
1
Push
2
Pull down
connector
®