I am moderately sure I have the Hobby CNC Pro chopper driver board. It is 10+ years old. The input I have assigned to my probe has stopped working. I have ohmed all the wiring right to the board and no dice. I have changed the probe pin assignment and it all works when assigned to another pin. Pin 10 seems to be dead. Is this common? Would it be possible that since my machine is all conductive, that this has somehow stressed the input to the point of failure? I use all available inputs, so I don't have a spare.

Thank you

Ryan

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