Hey peter,

I recently had issues with my Getaway showing vertical lines on the DMD which would flash in time with the score flashing.

For the life of me I can't remember which ribbon cable I wiggled first, as I was leaning over the playfield and had my daughter watching the screen, but it was one of the two ribbon cables on the left hand side of the DMD Controller board (J601, J602) which end up at the CPU board at J201, and J202.

In my case it appeared to be a bad connection at the DMD side. It's possible you may have issues at or before the header pins on your CPU board at (J201, or J202), as that would definitely result in the problem moving from pin to pin.

Hope that helps.

Andy