MY Pfaff 7530 screen went blank, no motion on any function, the only thing that happened was the light went on. I took it to the shop that I purchased it from in 2001. They said it was the mother board and there were no new boards being made. They'd put in a used or rebuilt one, with no guarantee it would not happen again soon. It would cost $250 for them to just look at the machine. I took my machine home and I may burn some incense over it. Maybe that will help. Does anyone have any helpful suggestions?