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docs: Suggest checking for bad wires in "lost communications" faq entry 

Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
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Kevin O'Connor 2019-01-07 10:28:25 -05:00
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docs/FAQ.md
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@ -250,6 +250,9 @@ between the host machine and the micro-controller. Things to look for:
- Make sure the printer's power supply is not being overloaded. (Power
fluctuations to the micro-controller's USB chip may result in resets
of that chip.)
- Verify stepper, heater, and other printer wires are not crimped or
frayed. (Printer movement may place stress on a faulty wire causing
it to lose contact, briefly short, or generate excessive noise.)
- There have been reports of high USB noise when both the printer's
power supply and the host's 5V power supply are mixed. (If you find
that the micro-controller powers on when either the printer's power