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4. There is no video output on any of the channels.
Below are a few possible reasons why this may be occurring:
•
The NVR firmware is incompatible with the attached cameras. Upgrade to the latest firmware.
•
The image brightness is set to 0. Change the brightness using the image settings or restore the NVR to factory default
settings.
•
There is no video input signal, or the signal is too weak.
•
A privacy mask or screensaver may be enabled.
•
There might be a malfunction with the NVR hardware.
5. Real-time video color is distorted.
Below are a few possible reasons why this may be occurring:
•
When using a BNC output, NTSC and PAL may be setup incorrectly. The real-time video may become black and white.
•
The NVR is not compatible with the monitor.
•
The video transmission cable is too long, or signal degradation is too great.
•
The NVR's color or brightness settings are not correctly configured.
6. Local Recordings are not searchable.
Below are a few possible reasons why this may be occurring:
•
The hard drive cable is damaged.
•
The hard drive is broken.
•
The NVR's firmware is incompatible with the recorded video.
•
The recorded files have been overwritten.
•
The recording function has been disabled.
7. Local playback video is distorted.
Below are a few possible reasons why this may be occurring:
•
The video quality setting is too low.
•
The NVR software has a read error. Restart the NVR to solve this problem.
•
The hard drive cable is damaged.
•
The hard drive is malfunctioning.
•
The NVR's hardware is malfunctioning.
8. There is no audio during real-time monitoring.
Below are a few possible reasons why this may be occurring:
•
The microphone being used is not sufficiently powered.
•
The speakers being used are not sufficiently powered.
•
The audio cable is damaged.
•
The NVR hardware is malfunctioning.
Summary of Contents for NV21 Series
Page 1: ...Network Video Recorder User Manual Version 1 0 4 Revised November 21st 2018 ...
Page 201: ...201 Figure 5 39 5 9 2 7 Email The email interface is shown as in Figure 5 40 ...
Page 214: ...214 Figure 5 58 ...
Page 227: ...227 Figure 5 77 Figure 5 78 ...
Page 245: ...245 Figure 5 102 5 10 2 Log Here you can view system log See Figure 5 103 Figure 5 103 ...