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Does Not Operate When The Foot Controller Is Used - Brother NX600 Service Manual

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Failure Investigation for Electronic Parts Does not operate when the foot controller is used.
Does not operate when the foot controller is
used.
Is the resistance between the assy.
pin jack F connector pins 2 & 3
normal?
• Foot controller disconnected ... 1 Ω
• Foot controller connected ...... ∞
With the foot controller connected,
does the resistance between pins 1 &
3 on the assy. pin jack F connector
vary from several Ω – 10 kΩ when
the foot controller is pressed down?
5 - 12
or less
Y
Y
Replace main F3D PCB assy.
N
Replace assy. pin jack F
• Replace the food controller
N
or
• Replace assy. pin jack F

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