hello, im new to the pinball world at least to working on them played them my whole life any way i just was givin a F-14 Tomcat and it worked great for 2 games. then the display went out. so i bought one from K's Arcade. got it yesterday and the top 2 displays are all wierd looking amd the bottom 2 look like they should. what would cause this and the fix for this thanks in advance