Ok guys -
I have read and searched and have TMI overload right now...let me describe the issues. Game is Black Knight.
Player 1, Player 2 and the credit/match display are fine.
For Player Three: The last digit is out completely , and segments 'a' and 'b' are out on every other character.
For Player Four: The first digit is out completely, and segments 'f' and 'g' are out on every other digit.
So...I think I am right in assuming all of the resistors on the master driver are good, since in some combination, for players 3 and 4 all of the segments are accounted for.
Also, I think I am good in assuming that the data lines from the MPU are good, or I would see nothing.
So If I am right, then I am stuck and can't find what to troubleshoot next...any ideas?
Thanks -
-scott