Quoted from copyboy311:

Have the adjustment failure message on startup of Rollergames and went through most of the troubleshooting suggested in this thread, but not any ram/rom testing. I have a remote battery holder, so that's the first thing I did; replace the batteries.
Found no bad or missing contacts or connections in the battery holder. Go through reset and free play setting procedures with door audit/adjustment switches and game will play fine until I turn it off. When powering on again, I get the error messages. If coin door is closed, error is "adjustment failure." If door is open when powering on, it's "factory settings." Still have to go into menus and set to free play to get game play again.
Not sure where to go next. Could the door open-closed switch have anything to do with it?

Quoted from copyboy311:

Thanks. I visually inspected D2 and didn't see anything. I'll keep an eye on it. However, I did check all the pin connectors and ROM chips on the boards to make sure they were all snug. Many connectors were not. Like my old Donkey Kong game whose video wigs out sometimes, pressing around on the circuit boards usually helps get something seated properly and clears up some problems. Not sure if what I did actually was what fixed it, but that's my layman's explanation!