I'm working on a Stern Lectronamo that was in really bad shape. I reworked all the boards, new connectors, rebuilt the flippers, etc. The wiring is still a mess. But I finally got it to where I could play a game. During the second game it just quit. The general lights still were on, the feature lights flashed (only two on the playfield work) and the displays went out. And it wouldn't start a new game. I knew the ground brad to the backbox was disconnected. I reconnected it and tried again. Played a couple of games and the same thing happened. Before I rebooted I checked all the voltages on the rectifier board, driver board, and MPU. All checked OK. Rebooted and it did it again.
I'm not sure what happens when a slam switch goes off. Does the game need to be rebooted or can I just start a new game?
I know this game needs a lot more work but this is something I haven't seen before.
Anyone have any suggestions where to look first?