5 - 1
5
Failure Investigation
for Electronic Parts
* Perform resistance measurements after turning off the power and detaching the
connectors to be measured from the PCB.
Error code list ...................................5 - 2
Power cannot be turned on ..............5 - 3
Pulse motors do not return to starting point
..5 - 4
Pattern cannot be selected...............5 - 5
Main motor does not turn..................5 - 6
Main motor rotation abnormal...........5 - 8
Cannot sew pattern well ...................5 - 9
Cannot sew button holes well.........5 - 10
Problems with vertical needle
movement and backstitching ..........5 - 11
Does not operate when the foot controller is used.
5 - 12
Needle bar cutting and
separating does not occur normally.
....5 - 13
Cassette LED does not light ...........5 - 14
Bobbin winding cannot be done. ....5 - 15
The workspace does not light.........5 - 16
LCD does not display normally
(S3:CS8100 Series only) ................5 - 18
Buzzer does not sound
(S3:CS8100 Series only) ................5 - 19
Error is displayed............................5 - 20
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