Search results

I have two different revisions of IGS PGM board - they both have had the original battery removed and CR2032 holder installed. One (I think maybe later version) saves NVRAM settings ok, but the other one doesn't (which seems to be the revision of board that has the features in this mod...

Hi, Long time arcade collector here. I've always enjoyed hardware hacks such as replacing numerous roms on classic games with a single rom, or getting multiple games to work on similar hardware. I reprogrammed a PAL once to emulate a PROM so I could get a sound board working in a Star Trek...