Operation Board Section - Panasonic KX-F900 Service Manual

I KX:F,00 1
3-10. OPERATION BOARD SECTION
(1) No key operation
I Key always pressed?
Is the
[_o
Check disconnection of CN5
(digital board) or CN301
(operation board).
t YES
Repair the keys.
Check IC301
(operation board)
(2) No LCD indication
I
[
Is the disconnection of the
cable and connector between
the LCD and Operation board
OK?
YES
Replace the LCD.
Check IC301.
NO
Repair.
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