Hopefully somebody will be able to help me out, but picked up a nishijin metal army pachinko machine and everything works so far except the screen, the unit turns on and you can shoot the balls and get jackpots and the sound also works but when it comes to the screen the only thing it does is the backlight or light lights up the screen but no graphics show up on it. I checked the connection they all look solid and plugged in correctly but don't know much past that so any help would be greatly appreciated.