I have an F14 tomcat. Any switch in column 5 will activate multiple switches in other columns. I have replaced SRC6, Q43, SR15, U40 and U38 PIA. I know the issue is on the board because I removed connectors J8 and J10 and jumped the pins at J8-5 with pins on J10 and I get the multiple switch closures for any in column 5. I don't know what else it could be causing it. Any help would be greatly appreciated.
Edit - I didn't replace the resistor at R72 because I didn't have one handy but I tested it with a MM and it checks out at 1.5k.