sorry, no attachment function on the other thread...thanks so much for all the help, really, thank you!! The bill validtaor is a wba 12/13 ss I believe. it has a attached card on the side, I believe RS-232 or something to that effect. As I said, doesn't power up, the harness seems intact, but not sure it's plugged in properly, from the the bill validator back to the back board, the harness splits into a large and small connector, the large is attached to it's female end. there is a three pin connector that's free floating...not sure where it plugs in or even if it should be...any help appreciated. I'll send more pictures tomorrow...