winteriscoming
Champion
I recently purchased a cheap type 1 i/o board that had a badly burnt up 12v input header. I was happy to discover it works fine without 12v. I had assumed I'd be missing out on lamp outputs, but never tested.
Today, in my OR2SP cab that has a fully working type 1, I noticed I didn't have the 12v plugged in and lamp outputs still worked fine.
What does the 12v do on these boards, and why did Sega bother to wire it up in OR2SP if it wasn't needed for anything?
Today, in my OR2SP cab that has a fully working type 1, I noticed I didn't have the 12v plugged in and lamp outputs still worked fine.
What does the 12v do on these boards, and why did Sega bother to wire it up in OR2SP if it wasn't needed for anything?