Sadly no access to the coin door from the back there is a big piece of sheet metal blocking it with no way to remove it, I took a closer look at the actual PCB and i see a spot that says "test" but there is no switch or anything it is a square with 4 holes, 1 at each corner, I tried to snap a picture but its nothing but blur so i will have to try and manufacture some better lighting conditions and try again. Dont know if I am supposed to use something to poke inside the hole to reset it or what, As I said I am a total novice with an actual arcade cabinet so I really appreciate all the help