NO.IN FLOW
CHART
PARTS
TO
BE
REF.
CAUSE
CHECK/ADJUSTMENT/REPAIR
AND
ERROR
STATUS
REPLACED
PAGE
#5
1. Floppy harness defective
Check
that
connector
P131s
correctly
connected
and
Floppy harness
P94
"Disk
ERR."
is
proper continuity tested for.
displayed.
2.
FDD
power
supply harness
(a)
Check
that
connector
P141s
correctly
connected
or
FDD
power
supply
P94
defective
proper continuity tested for.
harness
(b)* With
connector
P14
removed,
measure
voltage
P94
between pin 1
(+)and
pin 2
(-).
If
It
Is
not +
SV,
It
Is
defective.
3. Floppy disk drive defective
Replace
floppy
disk
drive.
Floppy disk drive
4.
Improper media
(a)
Check
that
It
Is
correct for
machine.
Media
(b)
Check
that
media
type
Is
correct.
200
cannot
be
Media
type
replaced
by
2HO,
and
vice
versa.
5. Main circuit board defective
Replace
main
circuit board.
Main circuit board
P47
#6
Mis-operation
Check
area
and
ratio
In
editing
mode.
------------
."Short
of
Area"
is
displayed.
#7
Improper
media
Check
media.
Replace media.
"*th
data
ERR."
is
displayed.
#8
1. Mis-operation
Entered
data
exceeds
the
Inside
memory
capacity
and
·-----------
"*th
Memory
OVR"
is
cannot
be
managed.
displayed.
2.
Memory
expansion board
Replace
memory
expansion
board.
Memory
expansion P49
defective board
3. Main circuit board defective
Replace
main
circuit
board.
Main circuit board P47
#9
Mis-operation
Area
Is
set too
small.
Re-edit
In
editing
mode.
------------
Hoop does
not
move. Refer
to
item
#3.
Refer
to
Item #3.
Refer
to
item
#3.
Refer
to
ltem#3.
#10
1. Encoder harness defective
Check
that
connector
P181s
correctly
connected
and
Encoder harness P98
Sewing machine runs
proper continuity tested for.
but
hoop
does
not
2. Rotary encoder defective
Replace
rotary
encoder.
Rotary encoder
move. 3. Synchronizer defective
Replace
synchronizer.
Synchronizer
#11 1. Sewing machine
motor
circuit
Check
that
connector
P17
Is
correctly
connected
and
Sewing
machine
motor
P98
Overload occurs board harness defective
proper continuity tested for.
circuit board
harness
immediately
after
2. Sewing machine
motor
circuit
Replace
sewing
machine
motor circuit
board.
Sewing
machine
motor P48
sewing began.
board
circuit board
and
transistor
alley
3. Transistor alley defective
Replace
transistor alley. PS9
4.
Fuse
F6
blown
Replace
fuse.
Fuse
PSB
#12 Machinery defective
Repair
and
adjust
machinery.
Overload occurs
during
Refer
to
item
#11.
Refer
to
Item
#11.
Refer
to
item
#11.
automatic
thread
trimming.
#13
1. Index circuit board harness
Check
that
connector
P7
Is
correctly
connected
and
Index circuit board
P93
Errors relative
to
defective
proper continuity tested for.
harness
needle
bar
case
2.
Pulse
motor
harness defective
Check
that
connector
P4
Is
correctly
connected
and
Pulse
motor
P92
appear.
proper continuity tested for.
harness
3.
·Needle change
p~lse
motor
Replace
pulse
motor.
Pulse
motor
defective
4. PMD circuit board defective
Replace
PMO
circuit
board.
PMD circuit board P48
5.
Fuse
F1
blown
Replace
fuse.
Fuse
P58
-79-
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