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ELNA 6005 heirloom edition Service Manual Page 9

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7
Step
9.
Step Foot
control.
10. Step Speed
control lever.
11. Step
Buttonhole.
When the check is completed, LCD shows (SELF – CHECK END).
If the machine works properly, LCD shows (SELF – CHECK OK).
If not , LCD shows ( ERROR O ) then it shows the part to be replaced by the following letters:
A – Printed circuit board A
D – Driving motor
P – Upper shaft sensor
Y – Stepping motor for feed
"Reverse" Key.
DIAGNOSIS CHART
Test operation
1
Depress the foot
control as far as it
will go. Then
release it.
1
Move the speed
control lever from
the leftmost
position to the
rightmost position.
1
Press the Reverse
button.
Correct condition
1
Buzzer sounds and LCD
shows (controller).
2
Buzzer sounds when the
foot controller is
depressed and released.
1
Buzzer sounds and LCD
shows (Volume).
2
Buzzer sounds at the
leftmost and the rightmost
positions.
1
Buzzer sounds and LCD
shows (DC Motor).
2
The machine runs at low
speed, then at high speed
and stops at the highest
position automatically.
B – Buttonhole sensor
K – Printed circuit board K
R – Machine socket
Defect condition
If not working properly, replace
the following parts in order
and recheck.
5. Foot control.
6. Machine socket.
7. Printed circuit board A.
If not working properly, replace
the following parts in order
and recheck.
1. Printed circuit board K.
2. Printed circuit board A.
If machine does not work
properly, replace the following
parts in order and recheck.
1
Buttonhole sensor.
2
Printed circuit board K.
3
Printed circuit board A.
C – Foot control
L – Light bulb
X – Stepping motor for ZZ

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