We may receive a commission on purchases made from links. Electrical diagnostic work is one of the most challenging parts of automotive repair. It can be incredibly daunting for beginners or DIY ...

i've got two fresh v2.1 boards, wired up with a plain std. encoder with switch. my multimeter shows the switch conducts exactly when pushed. the boards are unconfigured, ie. using the default values ...

Optocouplers frequently fail without a sound in labs or during repairs. The package appears to be undamaged, but there may be no output from the LED source or the photosensitive output stage. Testing ...