I have two games with this issue, Ballyl Hotdoggin and Stern Big Game. Hotdoggin was only wired with one coin mech so it's a bit weird.

I think there's something wrong with DIP switch 1 and/or 9 as changing those does nothing. I can get either game to give me multiple credits per quarter but not multiple quarters per credit. The 3/2 pricing works but isn't what I want.

On Hotdoggin I've verified that each switch works by testing continuity. I also tested each diode (all 32) and they all test good. From there though I'm a bit lost. It looks like each switch goes through a diode and then into a maze of tiny caps. Each game works 100% with no switch errors. Not sure if the DIPs are a part of the regular matrix or what. In fact I couldn't really find any info about this.

In the meantime I threw in an Altek and it works perfectly but I'd prefer to use the factory board. Any ideas?

Sprayed Deoxit into the switches but the switches work fine. Continuity when set to on, no continuity when set to off.