5 - 5
Failure Investigation
for Electronic Parts
Failure Investigation for Electronic Parts
Pattern cannot be selected
Y
Reconnect it correctly
Is the operation PCB assy. FFC
correctly connected to CN7 (S2) or
CN8 (S3) of the main PCB assy.?
If the foot controller is connected, is it
in the depressed position?
N
Reconnect it correctly
Set the foot controller so it is
not pressed down
Is the foot controller connector
correctly connected to CN14 (S2) or
CN15 (S3) on the main PCB assy.?
N
N
Y
Y
Pattern cannot be selected
• Replace operation PCB assy.
or
• Replace main PCB assy.
S2 : CS8000 Series
S3 : CS8100 Series
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