I have an NSM Firebird ES-IV that has the title changer box,
and 3 cables (2 from the side, and 1 from back small PCB).
I am looking for the interface board that will connect the Title Changer Box to
the rest of the juke.

I cannot find any for sale - does anyone have a good schematic for the board
so I can build one? My manual from coinopmanuals does not have a very clear
schemati.