I have a Stern Monopoly pinball and the display is not working. I have replaced the Display Power PCB with new aftermarket, replaced the DMD PCB, replaced the ribbon cables, replaced the DMD with a colorDMD display, replaced the Display ROM and CPU ROM. When I turn the game on I get "Monopoly and the ROM version" displayed then a blank screen. I am getting the proper 5.01 Voltages. I can play the game blind but it would be nice to see what my score is. Any ideas? Could someone point me in the right direction? I have contacted Stern and they said I could send them my CPU board. I would like to see if anyone can help me out first. Any ideas??