I have HDX1100 x2, with autopilot with remote knob control panel. Recently I sent in to Dynon my roll server for repair. The problem: I have had the autopilot do something really screwy. (I have had a previous issue with having to replace the shear pin in the roll access servo for a problem I could not identify). Sometimes when using the autopilot in expert mode and using tracking, I will get a message over the headphones which says "Autopilot" which I have learned means the autopilot has been seemingly disconnected, but without my command. Sometimes I just turn it back on but sometimes I notice (and I have witnessed on the ground that the roll axis is behaving somewhat erratically, going back and forth but without any purposeful movement, like it is having a "seizure.") Also, at the same time, the pitch axis is completely disconnected and is the elevator is free. But the autopilot is not really off. When it starts doing this you cannot turn the autopilot fully back on. Nor can you turn it fully off unless you pull the breaker . The affect in the air, is the roll servo "fights" manual input but is unable to overcome manual control. It sort of feels like when the power steering belt breaks while you are driving a car. The shear pin has not been overloaded either. Dynon suggested that the servo was defective so I sent it in for repair. Any ideas about the autopilot problem. Could the cheap serial connectors be the culprit?
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