Do you have a different DMD controller board you can swap in?
There's a good chance one of the chips on that DMD board is fried, it happens, and will show the symptoms you describe, and updating the HV section won't fix it because it isn't a power issue. This happened to be on a CFTBL. I just replaced the board with another I had laying around. As others have said a bad or loose ribbon cable can cause these issues also.