[CA] Spx 10 seatalk fault

[jono63812]

Hi, i have a spx 10 autopilot computer. It has worked great since installed. Today i accidently knocked the switch to my instruments off, when i switched the back on the autopilot head st6002 said no pilot.

I have a spare autopilot head, so tried that and it still said no pilot. On checking the spx 10 computer, all fuses are ok, but the 2 red fault lights are on above the seatalk connections into the computer???

The seatalk system seems to be fine, as all other elements of the system are recieving the seatalk informantion.

Any help or thoughts are apprieciated.