I have been working on repairing my Pinbot and swapped out the CPU board with one that I knew was mostly working (The one in the machine originally was badly damaged.) Anyways the one known issue with this board is that no matter what machine it is in, the top line of the display does not work. So as an example O looks like a U and T looks like I. Everything I have been able to find state that the issue is on the display board, however I have tried multiple displays as well as multiple cables.
Any ideas what I could be missing?