Hi
ok , so if it’s a Dahua , maybe good news ?
the system powers on , there are green lights illuminated against every Hard Disk ( 16 in total ) the internal fans are running , the power button is illuminated ( blue led ) , but there is a right light led against the warning triangle on the front .
there are approx 48 IP cameras attached to a powered switch , all of which are showing network connections , the switch is connected to the NVR .
I have plugged in a monitor to every HDMI port and also the VGA port and am unable to get a signal .
System is installed in Rugby , West Midlands . England .
Edit
Photo attached of the front screen , the display says “No Sync”