Stitch Length And Zigzag Width Cannot Be Done By Manual Adjustment; Failure Investigation For Electronic Parts - Brother NX600 Service Manual

Failure Investigation for Electronic Parts

Does the LCD panel display change
when the manual key for stitch length
and the manual key for zigzag width
are turned ON and OFF normally?
Is the resistance between pins 1 & 2
and pins 3 & 4 on the Z pulse motor
and F pulse motor connectors 4 – 6 Ω?
5 - 10
Stitch length and zigzag width cannot be done
by manual adjustment.
Stitch length and zigzag width
cannot be done by manual
adjustment.
Y
Y
Y
Replace main F3D PCB assy.
• Replace rubber keys
N
or
• Replace operation F3 PCB
assy.
N
Replace pulse motor