Talos Security DR800 Series DVR User Manual - Manual (Page 82)

H.264 Network DVR
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Operating system update failure
1. USB device incompatibility, try a new USB drive.
2. Bad USB connection.
The image on the monitor is black and white
1. Check the video input, DVR, monitor or TV is exactly the same video format, if it isn’t, please change the setting to automatic.
No image on the monitor
1. Check the status of the monitor; power on, brightness.
2. Check the monitor video cable.
Video ripple or tearing
1. Check for shorts in the video cables.
2. Check for interference from other AC devices on the video cable.
3. Check the video with a newer monitor.
Video color distortion
1. Check whether the video input/output setting is right.
2. Check whether the connection is right.
When using a PC monitor there is color and video distortion
1. Check the connection of VGA cable to the DVR.
2. Check the operating temperature of the DVR.