Quoted from Blackbeard:Passed on a decent PZ this weekend. Every time the left ramp shot was hit, the Captain head would get stuck looking backwards. Only happened on that shot. I figured it was a gearing issue and got nervous and passed not knowing if parts were available or not OR if that was even the issue. Odd thing was is that the head passed in test mode.
I just bought one day before yesterday and mind did the exact same thing. I repaired it yesterday it was the #3 optos on the head motor board. Replaced the optos with a spare I had and functions perfect now. Sounds like that pin has the exact same problem.