I just swapped out an older Multiplexer (Sanyo MPX-MD16) for a Speco DVR-16TL digital recorder. There are 11 analog mini dome cameras in the house (not sure what brand/model). As far as I know all the cameras were working with the old system. I did not install the cameras, but to my knowledge they were installed by an experienced company.
The problem I'm having is video "mixing" on three channels on the DVR. The image that is supposed to be coming from the cameras is mixing with the video from another camera with a black bar and distortion in between. It's like the feed from the three cameras is bad, because the same three cameras have the problem no matter which input I use. They even have the same issue if I plug them in individually (one at a time). I also attached an image of the problem, notice cameras 6, 8, and 11.
What could cause this kind of issue?
