Brother PR600II Service Manual page 293

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Failure Investigation for Electronic Parts The hoop does not move normally.
Does the machine function normally when the Y
area sensor PCB is replaced with a reliable one?
Does the machine function normally when the
connect PCB is replaced with a reliable one?
Is the resistance between pins 1 and 2,
and 3 and 4 of the X motor 5.4 - 6.8Ω,
respectively, when the motor's connector
CN3 is removed from the connect PCB?
Is the resistance between pins 1 and 2,
and 3 and 4 of the Y motor 5.2 - 6.4Ω,
respectively, when the motor's connector
(CN20) is removed from the main PCB?
From the previous page
N
N
Y
Y
Change main PCB.
Y
Change Y area sensor PCB.
Y
Change connect PCB.
N
Change X motor.
N
Change Y motor.
5 - 11

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