fig. I
fig. II
a
b
c
d
e
a
- 14 -
LOCATING THE DEFFECTED
ELECTRICAL PART
The self-diagnostic program
This machine is provided with the self-diagnostic program
for electrical parts.
If the machine does not function normally, although the
mechanical setting has been completed, check the
electrical parts by this program.
TO RUN THE SELF-DIAGNOSTIC PROGRAM
1. Trun off the power switch.
2. With pressing the both stitch length and width “+”
button, turn on the power switch. (fig. I)
3. When this program has started correctly, the LCD will
indicate the machine icon and version number of this
program. (fig. I)
When buttons are released, the LCD will change to
indicate the Frequency of power line. (fig. II-a)
4. By pressing any button, the mode of this program will
change and repeat as follow steps. (fig. II)
a. Frequency of power line.
b. Condition of switches and sesors
c. Phase of feed pulse motor
d. Phase of zigzag pulse motor
e. Condition of foot controller and speed control lever
5. To quit this program, turn off the power switch.
HOW TO CHECK
a. Frequency of power line
The frequency of connected power line will be indicated.
(50 or 60 Hz)
