I spend weeks getting my Demolition Man working perfectly for when our family stays over for the holiday and two hours before they all arrive the display starts to flake out.
Basically there are bunches of extra pixels randomly lighting up - usually in vertical lines spaced evenly across the panel. Most all the graphics are messed up but a few are fine. When I run a display test - same thing happens, random pixels and vertical lines. Plus, the test indicates some sort of page error (but it's hard to tell because the text is all messed up).
I have no idea if the display is going bad or the DMD controller board or RAM or something else. Any suggestions on how to diagnose this?
Thanks