To my surprise; it came with some wiring and chip info specific to the proton pack.
When I mentioned this in the chat today I was told that information on wiring up one of these chips was a "tribal knowledge" sort of thing.
Here's a shot of the chip:
As you can see this is one of the newer FC-2's and has the orange potentiometer not the blue one as seen in the ebay listing and all the other pics of the board I've seen and have been told it operates the same.
http://www.gbfans.com/community/viewtop ... 42&t=31992