DeleteUser

I have one Pelco Spectra 4 SE PTZ connected to a Pelco DX8000 DVR. Both video and PTZ control is sent through a coax. The camera has worked for three years but now is failing to move to the left or right. I rebooted the camera, checked for voltage drops, switched DVR port, checked BNCs. Sometimes the camera will say "Configuration failed" after a reboot of the camera. Is this a camera, backboard, or wire issue?

Is there a way to test if it's the backboard or just the camera? There are several other sites which have PTZ coaxitron issues. If they do go into their "dance" after reboot what else could it be?