I thought I'd posted about a problem I had with this, but I guess I didn't.
Last fall I completely disassembled quite a bit of the cab - at least all the parts came out. When I reassembled it it no longer worked.

You'd power it up, but all you would get it 1/10 of a second of the startup sound, and nothing more.
Fast forward to today, thought I'd give everything a look over.
100% user error. I plugged the video board power cable into the wrong connector. I was trying to beat the darkness that day and it got the best of me.
Luckily it seems there is no damage. Still have only 1/10 of a second of startup sound, but the game plays 100%. *shrug*