A motor on my HiFi system (which is supposed to lift a volume controller) has broken. The motor is stuck and I don't want to fix the mechanical part. I assume disassembling the volume controller would cause problems.
However, I have access to the flat cable to the complete volume unit. I'd like to isolate the motor pin. The flat cable looks like this one:
The pins are really tiny. How could I isolate the pin? It would be great if this is reversible. I thought about using nail polish. This usually works well on bigger connectors. However I fear it might be too thick or be too hard to apply on only one pin. Are there other "more professional" approaches to make such on PCB changes?