- 13 -
4-8 Replacement of Control Circuit Board
4-8-1 Removal of Control Box
1. Disconnect power and remove grille.
2. Be sure to ground any static electric charge in
your body and never touch the control circuit.
3. Disconnect the connectors from the control
circuit board.
4. Remove a screw securing the control box
assembly.
4-8-2 Removal of P.C.B Assembly
1. Pull the lever end of the plastic fastener and
remove the Flexible Printed Circuit(FPC) of mem-
brane panel.
2. Remove screws (3) securing the control circuit
board.
3. Lift up the control circuit board from the Ass’y con-
trol box.
4. When reconnecting the FPC connector, make sure
that the holes on the connector are properly en-
gaged with the hooks on the Plastic Fastener.
SCREW
CONTROL-BOX
Screw
FPC
connector
Screw
