Janome DC6030 Service Manual page 20

Step and
Procedure
items to check
Turn the power switch on while
01)
simultaneously pressing needle
Function of
up/down button and the locking
LCD, buzzer
stitch button.
and lamp
Press the needle up/down button
within 1.5 sec after the beep.
Press the pattern selection button #1.
Press the start/stop button.
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.
Press buttons 1– 10.
02)
2
1
Button
9
10
4
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.
Self-diagnostic Test
Sewing lamp and LCD backlight lit.
LCD displays "- - - -".
Buzzer sounds.
LCD displays symbols and numbers in
order.
LCD repeats displaying after all symbols
and numbers are shown.
•
LEDs are turned on row by row.
After all the LEDs are turned on, they
are turned off.
The same sequence is repeated.
•
Start/stop button blinks turning red
and green.
LCD displays "02".
3
Buzzer sounds when button is pressed.
Button number is displayed when the
button is pressed.
7
8
6
5
button 1 → F1
button 2 → F2
button 3 → F3
button 4 → 01
01 - 30
(Selection button 1-30)
button 5 → 31
button 7 → 33
button 9 → 35
Correct Condition
button 8 → 32
button 9 → 34
button 10 → 36
18
Defective Condition
q Sewing lamp does not lit.
Replace the circuit
board L2.
* LCD backlight does not
lit.
* LCD does not display
"- - - - ".
q Replace the circuit
board A.
* Buzzer does not sound.
* LCD does not display a
symbol or LCD displays 2
or more symbols
simultaneously.
q Replace the circuit
board A.
* LCD is not turned on.
* LCD is nor turned off.
q Replace the circuit
board A.
* LED is not turned on.
q Replace the circuit
board F.
* Buzzer does not sound.
* LCD does not display the
number correctly.
q Replace the circuit
board A.
w Replace the circuit
board F2.