ELNA Elnita ec60 Service Manual page 21

Step and items
to check
Turn on the power switch while
01)
simultaneously pressing the start/stop
Function of
button and locking stitch button.
LCD, buzzer
and lamp
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 to 6.
02)
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.
03) Lower the buttonhole lever.
Buttonhole
Move the buttonhole lever back and
Sensor
forth.
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.
04) Move the bobbin winder spindle to the
Bobbin
right.
winder Return it to the left.
switch
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
Procedure
Sewing lamp and LCD backlight lits. LCD
displays "01".
Buzzer sounds. LCD displays symbols and
numbers in order. LCD repeats displaying
after all symbols and numbers are shown.
LCD displays "SC 02".
Buzzer sounds when button is pressed. Button
4 1
number is displayed when the button is pressed.
3
2
5 6
LCD displays "S3" when button 1 is pressed.
LCD displays "S4" when button 2 is pressed.
LCD displays "S5" when button 3 is pressed.
LCD displays "S6" when button 4 is pressed.
LCD displays "S8" when button 5 is pressed.
LCD displays "S9" when button 6 is pressed.
LCD displays "SC 03".
When the buttonhole lever is pulled, buzzer
sounds and LCD displays BH symbol.
When the buttonhole lever is pushed, buzzer
sounds and LCD displays BH symbol.
LCD displays "SC 04".
When the bobbin winder spindle is moved to
the left, buzzer sounds.
When the bobbin winder spindle is moved to
the right, buzzer sounds and LCD displays
the bobbin symbol.
Correct Condition
BH symbol
Bobbin symbol
19
Defective Condition
Sewing lamp does not lit.
LCD backlight does not lit.
LCD does not display "01".
Buzzer does not sound.
LCD does not turned on.
LCD does not display any symbols
or not in order.
–REMEDY–
Replace the printed circuit board A.
Buzzer does not sound.
LCD does not display the number
correctly.
–REMEDY–
Replace the printed circuit board A.
Replace the printed circuit board F.
Buzzer does not sound.
BH symbol does not appear.
–REMEDY–
Replace the printed circuit board A.
Adjust the button hole lever position
Replace the button hole sensor.
Buzzer does not sound.
Bobbin symbol is not displayed.
–REMEDY–
Replace the bobbin winder switch.
Replace the printed circuit board A.