On Devil Riders, the right ramp wouldn't drop, and the right outlane switch wouldn't allow the drain flipper to flip.
The O ring on the backbox rider was broken, so while I was testing that I noticed that the left drop target bank wasn't scoring. Right Targets don't either. Both banks 'work' even when being dropped by the targets behind the pop bumpers. Because so many things aren't working, I'm wondering what's going on with the boards. The game plays, and I think most people wouldn't even really notice the right ramp and right drain flipper. Not really sure where to start.
Also, the ramp posts or whatever you call the thing that raises and lowers the ramps don't seem to lock into position. The left one, the working one, seems to just be held by pressure pressing again a plastic bar. I haven't dug too deep yet because I'm afraid if I clean it it won't stay down at all.
Hope that's not all nonsense, and if anyone has a place to point to as a starting area, that would be a great help. Thanks.