Network Video Recorder User Manual
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Q5. Why are no images displayed on part or all of the channels of the NVR?
Possible Reasons:
1)
The program does not match. Please upgrade the correct program.
2)
The brightness of image becomes “0”. Please restore the default settings.
3)
Channel protection or screen saver has been set.
4)
NVR is not connected to IPC, or user name and password of IPC are incorrect.
5)
Hardware failure.
Q6. Image problems: serious distortion of color and brightness, etc.
Possible Reasons:
1)
The impedance mismatch between NVR and monitor.
2)
The settings of color and brightness are not correct.
Q7. Why can't query the video when local playback?
Possible Reasons:
1)
There's a faulty connection of HDD data line or jumper.
2)
The HDD is damaged.
3)
Upgrade the program distinguishing from original file system
4)
The video file you want to query has been overwritten.
5)
Don’t enable recording.
Q8. The video shows blurred screen.
Possible Reasons:
1)
The image quality is too poor.
2)
There is a problem reading data from the program.
Usually return to normal
after restart NVR.
3)
There's a faulty connection of HDD data line or jumper.
4)
HDD failure.
5)
Hardware failure.
Q9. There is no sound while monitoring.
Possible Reasons:
1)
The pickup is not active.
Содержание QH-NVR
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