Response from Jonathan: Joshua,

We actually shot a video on wiring a cocktail cabinet JAMMA recently. We wire the game outside of the cabinet to make it easier to see. Here’s a link to the video: Wiring An Arcade Cabinet Using The JAMMA Standard. You might also check out our other videos on the JAMMA standard as they can give you more information.

I noticed that you said that your game is getting sound but no picture. We usually call this problem playing blind. If your monitor was working before the rewire then you could have some wiring issues going from your harness to your monitor. We talk a little bit about wiring monitors in our post on Replacing An Arcade Monitor. You might check that out as well.

Thank you for your question and good luck with your repair.