Quoted from Boof-Ed:
Player one and two are completely scrambled. Player three and four have one or two digits out. When the score scrolls to the left the digit that is out moves with the score and the same scrambled pattern on player one and two scrolls to the left also. I don't think there is a problem with the actual glass display.
Any ideas on what may be causing this would be appreciated.
Hey Boof-Ed, I looked at my F-14 and you may want to look at your ribbon cable going to the MPU and display, yours appears to be on incorrectly, here's a picture of mine where the displays work fine and I when I put my cable on the same as yours, I also got garbage like you did.