Service manual

20
3. Disassembly and Reassembly
3-9 Replacement of Control Circuit Board
Parts Explaination Photo Explaination
Removal of
Control Box
Assembly
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.
Remove a screw securing the control box
assembly.
4.
Disconnect the connectors from the control
circuit board.
Removal of
P.C.B Assembly
1. Pull the lever end of the plastic fastener and
remove the Flexible Printed Circuit(FPC) of
membrane panel.
2.
Remove screws (3) securing the control circuit
board.
3.
Lift up the control circuit board from the Ass’y
control box.
4.
When reconnecting the FPC connector, make
sure that the holes on the connector are
properly engaged with the hooks on the Plastic
Fastener.