I have two rear-view cameras on the motorhome. On a recent long journey the picture from the one that looks straight back started to flicker. The fault had been there for ages, but it hadn't been very bad. Now it was bad; very distracting. The fault was only present when the vehicle was moving. It looked very much like a poor connection somewhere. It got worse and worse. I knew it had to be either the camera switcher or the cable to the camera or the camera itself, because other cameras were unaffected.There was no opportunity to fault-find at the destination, and on the way home the fault was present. After about a hundred miles we stopped for a meal and once the vehicle was stationary the fault disappeared. I wanted to use the lavatory so I said to Hil, "While I'm at the back I'll bash a few panels to see if I can make that flicker appear, so you watch the monitor." The first thing I did at the back was open and then slam the lavatory door. Hil said, "Ohh yes! Real bad flicker!" I slammed the door again. Nothing. I bashed every wall and ceiling panel. Nothing. The fault did not reappear as we completed our journey. When we got off the motorway I drove over some really rough roads. No fault appeared. At home I tapped the camera housing and wiggled all accessible cable. Nothing. How frustrating. Obviously there's a big chance the fault will come back at an inconvenient time.
Bill