Brother PR655 Service Manual

Failure Investigation for Electronic Parts
Failure Investigation
for Electronic Parts
Failure Investigation
for Electronic Parts
5 - 20
The hoop sensor does not function normally.
The hoop sensor does not function
normally.
Connect it properly.
N
Y
Is the hoop sensor properly connected
to CN1 on the hoop sensor PCB?
Connect it properly.
N
Y
Is the FFC (SML2CD-XH) connected to CN2
on the hoop sensor PCB and CN1 on the X
area sensor PCB? Is the orientation of the
FFC (SML2CD-XH) correct?
Connect it properly.
N
Is the FFC (SML2CD-CX) properly connected
to CN1 on the X area sensor PCB and CN3
on the connect PCB? Is the orientation of
the FFC (SML2CD-CX) correct?
Y
Connect it properly.
N
Is the FFC (SML2CD-YC) properly connected
to CN1 on the Y area sensor PCB and CN1
on the connect PCB? Is the orientation of
the FFC (SML2CD-YC) correct?
Y
Connect it properly.
N
Is the Y area sensor's lead properly
connected to CN23 on the main
PCB?
Y
Change the
FFCSML2CD-XH.
N
Is the resistance between each terminal at both
ends 1Ω or below when both ends of the
FFCSML2CD-XH are removed from the PCB?
Y
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Brother PR655 Specifications

General

Number of Needles	6
Built-in Designs	25
USB Port	Yes
LCD Display	Yes
Type	Embroidery Machine
Built-in Fonts	28
Maximum Speed	1000 stitches per minute
Embroidery Area	300mm x 200mm