The Hoop Does Not Move Normally - Brother PR600II Service Manual

Failure Investigation for Electronic Parts The hoop does not move normally.
Is the FFC (SML2CD-C) properly connected
to CN1 on the X area sensor PCB and CN4
on the connect PCB? Is the orientation of
the FFC (SML2CD-C) correct?
Is the FFC (SML2CD-Y) properly connected
to CN1 on the Y area sensor PCB and CN2
on the connect PCB? Is the orientation of
the FFC (SML2CD-Y) correct?
Is the Y area sensor's lead properly
connected to CN19 on the main
PCB?
Is the resistance between each terminal
at both ends 1Ω or below when the FFC
(SML2CD-C) is removed from the PCB?
Is the resistance between each terminal
at both ends 1Ω or below when the FFC
(SML2CD-Y) is removed from the PCB?
Does the machine function normally when the X
area sensor PCB is replaced with a reliable one?
5 - 10

The hoop does not move normally.

Y
Y
Y
Y
Y
N
To the next page
N
Connect it properly.
N
Connect it properly.
N
Connect it properly.
N
Change FFC (SML2CD-C).
N
Change FFC (SML2CD-Y).
Y
Change X area sensor PCB.