P66
4、 There are no video outputs in single channel, multiple channels and all channels.
Possible reasons are as followed:
1 The program is not matched. Please update the program.
2 The image brightness is all 0. Please restore the default setup.
3 There is no video input signal or the signal is too weak.
4 The channel protection or the screen protection is set.
5 The hardware of the DVR is damaged.
5、 Real-time image problems such as the image color or the brightness distortion.
Possible reasons are as followed:
1 When using the BNC output, the option between the N mode or PAL mode is wrong and the
image becomes black and white.
2 The DVR is not matched the monitor impedance.
3 The video transmission distance is too far or the loss of the video transmission line is too
large.
4 The color and brightness setting of the DVR is wrong.
6、 I can not find the video files in local playback mode.
Possible reasons are as followed:
1 The data line of the hard disk is damaged.
2 The hard disk is damaged.
3 Update the different program with the origin program files.
4 The video files to look up are covered.
5 The recording is not on.
7、 The local video is not clear.
Possible reasons are as followed:
1 The image quality is too bad.
2 The reading program is wrong. Reboot up the DVR.
3 The data line of the hard disk is damaged.
4 The hard disk is damaged.
5 The hardware of the DVR is damaged.
8、 There is no audio signal in the surveillance window.
