Hi there,
I am absolutely newbie to cctv. Recently I just bought a AVtech 760 dvr with 4 IR camera. After connected everything, (each camera to an inout behind the dvr and a coaxial from dvr to a normal TV) nothing comes out? May I know whether there is any trick in between?
Also, When I switch on the DVR there is a beep sounds for a start and then half way through (around another 2-3 min) another beep sounds goes off (sounds like a warning sound), could it be that my DVR is faulty?