22
DC4030P
SELF DIAGNOSTIC TESTS
* LED display is dtfferent from
that shown to the left.
If LED displays "E1", replace the
width motor or board "A".
* LED indicates "00".
When the foot control
is not depressed, LED
should display "F0" to "FF"
(hexadecimal value).
When the foot control is
fully depressed, LED should
display "05" to "2F".
When the control is
disconnected, LED should
show "00" to "04".
* LED display is different from
that shown to the left.
If LED displays "E2", replace
motor or board "A".
* LED displays "FS".
Feed motor is set to the initial position.
(Stitch length : 0)
* LED displays "bs".
Zigzag width motor is set to the initial
position. (Needle centered)
STEP
OPERATION
CORECT CONDITION
DEFECTIVE CONDITION
10)
Foot
controller
Press needle up/down button,
the LED displays "10" for one
second.
Depress the foot controller down
all the way and release.
* LED display is different from
that shown to the left.
1. Replace foot control.
2. Replace machine socket.
3. Replace board "A".
11)
Zigzag width
motor
Press the needle up/down
button, the LED displays "11" for
one second.
* Press the start/stop button.
Feed
motor
Turn the handwheel toward you
to lower the needle to its lowest
position, then press start/stop
button.
12)
DC motor
THE END OF TEST:
All of test is finished, turn off the power switch.
Press needle up/down button,
L E D i n d i c a t e s " 1 2 " fo r o n e
swcond.
* Press foot control.
* LED indicates "dc".
* Machine runs at the speed set by
the speed control lever.
Full left: 80 ~100 SPM
Full right: 800 ~840 SPM
Machine does not run, LED
displays "Lo".
1. Replace DC motor.
2. Replace board "A".
LED
LED
LED
LED
