Hello, I just moved in to my new house and i am having a problem getting my multiplexer to work! It is a tecton drax duplex 10 multiplexer. When i hook it up and put the cameras up to it, it seems like it is going at the speed of light. I cant even see a picture half the time and i need to slow the speed down or something. does anyone know how to work this or does anyone have a manual......thanks so much