I’m currently working on designing a Falcon class JAMMA adapter. Let’s just say that it isn’t easy with all the variety in the games out there.
I’ve got at least a dozen PCBs that use some variant of this pinout. This includes original Falcon games, bootleg games from Sega, Konami, Irem and Namco. I didn’t expect to see it being that widely used, and only realized this when I started to look into it.
I still haven’t decided on what the final end product will look like, but most likely there will be two main Falcon adapters, plus maybe another one for games that don’t quite fit the class, such as Make Trax and Eyes / Ms. Pacman bootleg that are flipped. I really don’t want people to connect these backwards and fry their games… or my own.
More information will be available when I figure it all out…