Having some problems we Road Kings displays.
I was working on this game with my brother, hooked up the display driver board wrong and got fireworks. Blew a fuse and fried the display driver board. Bought a replacement display driver, got everything hooked up, getting scrambled characters on the alphanumeric displays number one and two. The ball in play display sorta works, player 4 is perfect.
Cables are all hooked up with red stripe on pin 1.
Anyone have any thoughts of where to start?

I'll double check, pretty sure the pin 1 is on the red stripe on the ribbon cables at both ends.

Good call, I don't have any system 11 now, but I will have access to one soon.