Befaco.org

Basic Troubleshooting

This guide tries to cover basic troubleshooting: Some simple steps that can be taken by anyone with a multimeter and some spare time. It’s on continuous evolution, so you can expect modifications and updates.

These steps do not try to cover everything, just the steps that would solve the most common problems after a kit assembly.

When everything is assembled, before plugin the module to power:

When all these questions have  positive answer plug it in, then…

  1. Doublecheck the cable and power connection. It might be reversed.
  2. Check if there is continuity between V+,V- or GND. If so, look for a short-circuit
  1. It might be reversed or placed in the wrong place. Doublecheck this.
  2. Test for short circuits  or funky solderings.
  1. If no volts are present, doublecheck power soldering points and paths for the ones did not worked.
  2. Use the multimeter to check continuity between socket’s contact and soldered leg on the other side of the board.

See below a flow chart to help carry on with these previous steps. You can also download it in pdf or dia formats.

 

Basic_troubleshooting

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