I have a Gottlieb System 80B game (Hollywood Heat in particular) that is giving me a variety of troubles. The main one I would like to address and get some advice on is that occasional games will end out of nowhere. Basically, in the middle of gameplay, power to the flippers drop, the alpha-numeric display goes back to its attract mode, and that's it. I can hit start to begin a new game as if nothing happened. Lights didn't flicker, no crazy sounds were made (not that I could tell, that's my second issue--the sound, but that's a topic for another day), etc.

Any idea what could be causing this? It's definitely not slam tilting, which would display certain characters indicating such happened.

I can't tell if it happens when both flippers are pressed at the same time (usually it's during multi-ball when things get crazy and I'm flipping fast). It never happened before up until the last several weeks, and it might happen once out of a good five or ten games. It feels like it's becoming more frequent though.

All right, I never got around to trying these troubleshooting methods, but for a few months there the game wasn't having many problems. Over the last couple of weeks or so though it began resetting like crazy again. Yesterday in particular I couldn't play for more than 20 or 30 seconds before having the game reset. Perhaps over this weekend I'll try a few of the things suggested.

A couple of other issues on-hand I wanted to get some advice on as well:

1) Game slam tilts whenever I open the coin door. I thought it was the slam tilt switch itself on the door so I disconnected and wrapped the wires together, but it's still happening. Any ideas what is causing this? (This is unrelated to the reset issue)

2) Sound constantly cuts in and out. This has been a long-running issue as well and I replaced the volume pot by the coin door within the last year as a first step in troubleshooting the issue (apparently that wasn't the problem).