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Service Manual
SEC.25-5
Trouble contents on display (5)
Name of al
No.
Way of detect
code
Problem in
Hoop
movement
Needle position became lower position before
(hoop moved
hoop motion has completely end at embroidery
14
with needle at
mode.
bottom
position)
Any button of START/STOP, FORWARD
Trouble of
STICTH, REVERSE STITCH or AUTOMATIC
operation
15
THREAD TRIMING is pressed more than
board.
5seconds when turning on the sewing machine.
nil
16
If exceed amount of electric current has followed
to bobbin winder motor more than 50ms out of
Trouble of
250ms at condition of PWM output is off and
PWM output
connecting to protection relay while main power
is on.
Trouble of
main shaft
stop (detected
If exceed amount of electric current has followed
17
it is moving
to bobbin winder motor within 200rms while main
even though it
bobbin winder motor is turned on.
should be
stopped.)
Trouble of
Regardless of motor turned on or off, if exceed
loading
amount of electric current has followed to bobbin
current
winder motor for more than 3seconds.
Original issue
May 2014
Page 58／64
Model
XL-420
Solution
The embroidery data is
broken.
Switch button has been
stiffened and pressed.
It is need to check
button.
Replace CPU board is
needed.
Replace CPU board is
needed.
Replace CPU board is
needed.
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