DL2 loss of Motor Control for iris/focus/zoom

Good morning.

I have inherited 2 Dl2s on this current tour that have just recieved new head cards (for reasons unknown.) I have power on the motors but no control of iris/focus or zoom. Running xpe2.0 with 1.5.4 software. I have checkd all connections, calibrated motors & rolled firmware back to 1.5.2 but I have had no luck. If it helps - anytime I home any of these three functions, the pan & tilt home instead. Not sure if that is normal.

Any ideas?????

Cheers
Jabba