Helping a friend with a Tspp. Posted a thread a couple weeks back because his new color dmd wasn't working. So we figured we would diagnose to see if it was his new screen or the machine. He had new 5.0 ROMs in the game. We decided to swap everything back to the way it was. Old dmd with 4.0 ROMs. Old screen wouldn't work in the game. He had a working LOTR for swapping boards. Swapped dmd ribbon cables, screen and every board other than the power driver board between both games. Everything worked in the LOTR but LOTR swaps wouldn't work in Tspp. Checked every fuse on the power driver board as well. We ran out of time so we couldn't swap power driver boards. Any suggestions? Here are some pics in case we overlooked something. Test points on power driver read fine.