Service manual

Troubleshooting
5-12
EPSON FX-880/FX-1180 Service Manual
START
Do the control panel
buttons sound and
feel normal when
pressed?
Replace the
PNL board.
Replace the
C229 MAIN
board.
Is the
problem
solved?
Check to make sure
the FFC is securely
connected to the
C229 MAIN board and
to the PNL.
Is the
problem
solved?
END
YES
NO
NO
YES
YES
NO
Replace the
FFC.
Is the
problem
solved?
NO
YES
Flowchart 5. Abnormal Control Panel Operation
ABNORMAL CONTROL PANEL
OPERATION