I don't see just a F7 in the tech. data sheet, but I do see:
F700--->Loss of Display tail #0. Check connection P3 on UIB and J3 on Glass Touch Panel.
F710--->Loss of Display tail #1. Check connection J2 on UIB and J4 on Glass Touch Panel.
F701--->Loss of Keyboard Tail. Check connection P2 on UIB and J5 on Glass Touch Panel.
F702--->Shorted Keypad. Disconnect power, wait 30 seconds and reapply power. If fault returns upon power-up: 1. Replace EOC. 2. Replace Glass Touch Panel.