Infrared not working with new dvr
Hi everyone hoping for some help.
I’ve recently moved into a new place with an older 8 camera set up. Had an old dvr and all cameras were working including night/day and infrared. Upgraded the dvr to a Dahua hybrid as I couldn’t access any of the controls/menu of the old box. Since then the outdoor cameras (AHD) are still working normally but the indoor ones (zosi) night/day modes still work, I can hear the infrared shutter click but the infrared itself isn’t turning on. I assume they are pretty old cameras as they only work ok cvbs and there isn’t a switch on the camera lead to change signal type.
I’ve been through all the settings on the dvr and can’t get the infrared to work. Still works normally when I go back to the old box.
Anyone have any ideas on what would be causing the infrared lights to not turn on?