Shown No Signal on the monitor
What if you cannot get any display on TV from the NVR system, this is caused by resolution compatibility issue.
The default output resolution of the NVR is 1280*1024, Please check what's your monitor resolution input.
Here is how to solve it:
1. Connect the NVR to any other screen via VGA; (or you may also try any other screen via HDMI to see if you can enter the menu)
2. When you are able to see the menu, click right button on mouse, go to System Setup – General Setup – Screen Setup – VGA resolution; change it to 1080p@60; apply to save it. (US mostly is 1080p@60, it depends on your monitor)
3. Connect it back your primary screen via HDMI. You should have it worked with the screen.
Once enter the NVR Recorder menu, right click mouse> system setup> general setup>Screen setup , adjust the resolution match with your monitor.