I was working on a Gameplan Super Nova. It boots and starts a game. I hear a two tone beeping going on continuously, very faint. And only a few solenoids seem to be working.
Any ideas? The pinwiki has a lot about the boot process, but not much on diagnosing other issues.

OK, got the initial beeping to stop after a boot by reseating the connection. Now, the game seems to randomly lock up after some switch or bumper hits. Haven't nailed down a common cause.

It looks great! Eric told me you had done lots of work. I am looking forward to playing it!