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Improper
operation
of carriage.
Does
linear
motor
work?
NO
Does
linear
motor
step
out?
YES
SCU
Board
J14
pin
13
Measure
resistance of
pin
14
linear
motor
coil.
pin
15
2.02fi/ph<
se
pin
16
s
YES
NO
Is
home
position
detected?
YES
NO
Is
coil
resistance
2.02
n/phase?
YES
Measure
resistance
on
carriage circuit
board.
Check
installation
of carriage.
Check
level
of
R15.
Move
carriage
to
right/left,
and
turn
on/off the
sensor.
Replace
SCU
circuit
board.
YES
YES
Replace
SCU
circuit
board.
NO
Replace
carriage
motor
Replace
FPC-C
cable.
Replace
carriage
circuit
board.
76
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