Possible Damage to Cambridge 302

Had my canopy off today to do some work behind the panel. I accidentally
leaned against the panel and it slammed down. I powered up and everything
works except for the CAI302. The display turns on and, IIRC, the needle
swung, but it never got beyond the second screen, the one which displays a
number at the top and the firmware version at the bottom.

The wind got pretty strong today at Moriarty so I put it back in the
trailer. My plan for tomorrow is to disconnect everything and reconnect
thinking that a connector or wire might have come loose. There's no
indication of damage by looking at the screen. Any suggestions?