troubleshooting

Hey, everyone. Just stumbled upon this forum, and looking forward to learning a lot. Mostly out of impulse and curiosity, I just purchased a Tekken 2 arcade PCB from an online store I use frequently. They've been around for a while and are well-established, but this is the first time I've seen...

[SOLUTION FOLLOWS] Shortly after posting I was shown a troubleshooting video which identified a rainbow cable as a crucial part (which was missing from my unit). I then sought out and purchased a replacement since I didn't have the proper connectors on hand to wire one up. Once it arrived, I...

I bought a supposedly "working" board from arcade spare parts, I got this because the one I previously had was not working due to displaying Nothing but a "No signal" and I wanted one working so I can more easily diagnose the problem. But unfortunately even this one is failing to boot, it gets...

I’m having issues loading pretty much all games with the exception of ghouls n ghosts which works great. Final fight is audio only. Cadillac and dinosaurs shows the opening screen and then nothing. Others only show black screen. Any clue?

.