I am very happy that it fired up.
Three displays are working but 2 of them are missing digits & player 4 display is dead. I swapped player 4 to player 3 to confirm that it was gone.
 I read somewhere that if one display has a problem it could effect others. Not sure if this is true but i plan to replace the dead display first to see what happens.  So if i can get one display i will start with that.I also need to work out the door diagnostics. I may need your help on this daniel.