WE have owned our 2005 Holiday Rambler for almost a year now and the whole time our back-up camera has not really worked. It either has lines on it or has a very blurry picture. I found a company called RV cams inc. If you send your camera and monitor to them they will trouble shoot them for free. So I decided that was what we would do.
I was up on the rv trying to figure out how to unhook the camera and I had to almost totally disassemble it, only to find out there was no way to get the wires out of the case and take the camera off. They evidently put the wire through the case and then put the connector on. So I put the camera back together and the picture was a little better but still blurry.
DH said is there anyway that the camera can be adjusted so its not blurry. I said are you thinking maybe it just needs to be focused or something? So I turned the end of the little camera lens and sure enough that was all it was, it was just out of focus. I wish we would have thought of that before I took the whole thing apart. Standing on a ladder trying to put itty bitty screws back in was a pain. And I would have felt really stupid if I had sent the camera and monitor off and it was only out of focus..