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Main Motor Does Not Turn - Brother NV-10A Service Manual

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Failure Investigation for Electronic Parts Main motor does not turn
Is the main motor connector correctly
connected to CN401 of the power
supply PCB assy.?
Is the main motor resistance 2 – 5 Ω
at any rotation position?
Is the power lead wire assy. correctly
connected to CN201 of the power PCB
assy. and to CN5 of the main PCB assy.?
Is the connector of the SS-VR PCB
assy. correctly connected to CN1 of
the main PCB assy.?
5 - 6

Main motor does not turn

Does the pulley turn easily?
Y
Y
Y
Y
Y
To next page
N
Adjust the assy. of upper shaft
N
Reconnect it correctly
N
Replace the main motor
N
Reconnect it correctly
N
Reconnect it correctly

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