A friend sent me this picture today asking for help- I feel like I've seen this type thing before but could find it in pinwiki or through searching.
Is there an obvious diagnosis before I go try to troubleshoot?
If not, I assume troubleshoot procedure would be:
1) Test Voltages
2) Reseat/fiddle with ribbon connectors
3) Swap known good DMD (I have one a spare I think)
4) Swap known good board (then go after RAM)
I don't have much DMD troubleshooting, so appreciate the thoughts.