Quoted from hd60609:
I had the random resets as well. It was happening quite often. Sometimes the display would just scramble, but that seemed to be better when I reseated the ribbon cables. But the game reset, especially noticeable in the middle of multiball making me think it was mechanical shaking. I reseated the power connectors often, but then ended up reflowing the connectors on the power supply. It is now much better, but still happens every couple weeks.
I am strongly considering getting a new power supply. Which did you end up getting and from which vendor? Are you happy with it? I was going to go with the one specifically made for the large displays, but I am running a 12v Dr Pinball LCD display and may eventually switch to the Color DMD LCD. So I was considering the Rottendog power supply that doesn't have the higher voltage going to the DMD board.
I was also going to purchase the new capacitor kit for the large DMDs, reflow the fuse clip holders and keep the original power supply as a spare. Anyone redo the capacitors? Does it really help?
Here is the power supply I purchased. A few people told me I'd save a lot of money rebuilding the board but I didn't want to fry my son's game on my first restore. Thus, I just purchased a new board. I've had no issues at all. The color DMD doesn't use as much power as the legacy DMD.