Brother NV4000D Service Manual page 357
Computized sewing machine
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Also See for NV4000D:
- User manual (251 pages) ,
- Manual de instrucciones (249 pages) ,
- Manual de instrucciones (250 pages)
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Failure Investigation for Electronic Parts Universal serial bus (USB) cannot be used normally
Universal serial bus (USB) cannot
Is the USB device firmly connected?
When the USB device is replaced with
a new one, does it work correctly?
be used normally.
Y
N
Change panel PCB.
N
Connect it properly.
Y
Replace the USB device.
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