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Fis.
52
lf
it
is
not
set
correctly,
re-set
and check
again.
lf
it
is
set
correctly,
push
the
CF
key
again
and check
the
movement
of
the
pattern
card.
lf
the
pattern card is
fed
one
row
forward
before
the
mark
sensor reads
the
second
time
of
the
same
row, the
pattern variation switch No.
4
(DOUBLE
LENGTH)
does
not
work
correctly.
Replace
the pattern
case
whole
unit
or the main
P.C.B.
assembly
with
a
new
one.
I
ncorrect
needle
selection.
Push
the
CR
key, the error
lamp
flashes
on and
off.
Select
the
needles
by
moving
the
K
carriage.
lf
the
same
incorrect
needle
selection
appears again,
the
mark
sensor does
not
read
the pattern
card
correctly.
Clean
the
specular surface
of
the
card guide
A
and mark
sensor
and check
the
standstill position
of
the pattern
card.
(Fig. 53)
The
first
pattern's
line
of the
pattern
card should
be
on
the
same level
as
the
bottom
line
of
the
windows.
(Fig.
53)
lf
it
is
not,
adjust
the position
of
the pattern
card.
lf
the position of the pattern
card
is
correct.
check
the mark
sensor
circuit.
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7.
Adjusting the
card
reader.
7-1. When
taking
off
or
replaceing
the
stepping
motor.
1
).
Mount
the
card
reader
to
the body
and connect
the
connector
54
of
the
lead
wire for the
stepping
motor
to
P4
of
the
main
P.C.B.,
the
connector
51
1
to
P1
1
of the
power
supply
board,
the
connector
S8
of the
DC
motor
to
P8
of
the
power supply board and
the
connector
S10
of
the
encorder board
assembly
to
P10
of
the mark
sensor.
2]..
Remove
the
fuse
(F201)
from
the
power
supply
board.
(The
DC
motor
does
not
move.)
CAUTION:
lf
the
power
switch
is
turned
on
without
connecting the
connector 58, the
power
supply
board
will
be
broken.
3).
Loosen
the
screw
of
the
gear
260.
(Fig.
54)
Fis.
-t:.
54
Card
guide
A
Fig.
53
-30-
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