I recently bought a DOA++ board from a seller on eBay. When I connect it in my Aero City cabinet it won't sync. Then in my Blast City it sort of syncs, but the picture is dim and contrast is off. When I connect it to my HAS supergun test setup the picture is perfect. I've already messed around with my monitors in both cabs. Is there something that I am missing about this board? It's not the Model 2 variant, but regular old jamma...