If there's no video output on the monitor from NVR, try the following:

• Ensure the lowest resolution of the TV/monitor Is no less than 1080p, or It won't be able to display any video from the NVR.

• Ensure the power supply of your NVR is working. Please notice the status of Power LED.

• Ensure the HDMI/VGA cables and TV/monitor you used are working properly, we suggest trying a different cable or monitor to test.