Janome J30 Service Manual And Parts List page 23

STEP AND
ITEMS TO PROCEDURE
CHECK
08)
Attach the foot control to the
FOOT
machine.
CONTROL
Depress the foot control as far as
it goes, then release it.
If the result is correct condition,
press the start/stop button to
proceed the next step.
If the result is defective condition,
press the reverse stitch button to
proceed the next step.
Shift the slide volume from left to
09)
SLIDE
right, then return to the left.
VOLUME
If the result is correct condition,
press the start/stop button to
proceed the next step.
If the result is defective condition,
press the reverse stitch button to
proceed the next step.
10)
Press the needle up/down button.
DC MOTOR
If the result is correct condition,
press the start/stop button to
proceed the next step.
If the result is defective condition,
press the reverse stitch button to
proceed the next step.
11) Not applicable for this machine.
THREAD
Press the start/stop button to
TENSION
proceed the next step.
RELEASE
SOLENOID
12)
Not applicable for this machine.
THREAD
Press the start/stop button to
CUTTER
proceed the next step.
MOTOR,
THREAD
CUTTER
SOLENOID
SELF-DIAGNOSTIC TEST
LCD displays "SC 08--".
The foot control symbol appears when
the foot control is attached.
Buzzer sounds when the foot control is
deeply depressed.
Buzzer sounds when the foot control is
released.
LCD displays "SC 09--".
Buzzer sounds at rightmost or leftmost
position.
LCD displays "SC 10--".
Machine runs slow, then fast, and the
needle bar stops at its highest position.
LCD displays "SC 11of".
LCD displays "SC 12--".
21
CORRECT CONDITION
Foot control
symbol
DEFECTIVE CONDITION
The foot control symbol
does not appear.
Buzzer does not sound.
–REMEDY–
Replace the foot control.
Replace the machine
socket (foot control
socket).
Replace the circuit board A.
Buzzer does not sound.
–REMEDY–
Replace the slide volume.
Replace the circuit board A.
The machine motor does
not start.
The motor stops
immediately.
The motor runs unstable.
–REMEDY–
Replace the DC motor.
Replace the circuit board A.