Kids, changing the polarity of components that don’t seem to work in an attempt to get them to work often makes them work even less.

RIP Recom R-78HB

  • lightrush@lemmy.caOP
    3·
    1 year ago

    I was a bit surprised because this unit has got protection against just about anything. I didn’t expect reverse polarity to do it in. 😅

    • PCChipsM922U@sh.itjust.works
      2·
      1 year ago

      You could actually try to see if has a zener or a schotky diode inside the unit and just remove it, it’s probably short circuited. It’s there for protection, so the whole thing doesn’t go poof if a PSU with inadequate voltage or reverse polarity is plugged in. If it’s a schotky diode, it’s probably in series with the +. If it’s a zener diode, it’s in parallel with the rails, between the + and -. In the first case, you need to remove and short circuit the diode. In the second case, just remove the zener diode.

      Plug it in, see if goes KABOOM 🤷 😂.