Digisol DG-CD1020HC User Manual page 71

7. The local video is not clear.
Possible reasons are as follows:
i.
ii.
iii.
iv.
8. There is no audio signal in the surveillance window.
Possible reasons are as follows:
i.
ii.
iii.
iv.
9. There is audio signal in the surveillance window but no audio signal in the
playback state.
Possible reasons are as follows:
i.
ii.
10. The time is wrong.
Possible reasons are as follows:
i.
ii.
iii.
11. The DVR cannot control the PTZ.
Possible reasons are as follows:
i.
ii.
iii.
The image quality is too bad.
The reading program is wrong. Reboot the DVR.
The power to the camera is not proper.
The hardware of the DVR is damaged.
It is not an active tone arm.
It is not an active sound box.
The audio lines are damaged.
The hardware of the DVR is damaged.
Setting issues: the audio option is not chosen.
The respective channel is not connected with the video.
Setting is wrong.
The battery is in bad connection or the voltage is too low.
The oscillation is damaged.
There is something wrong with the frontal PTZ.
The setting, connection or the installation of the PTZ decoder is not
correct.
The connections are not correct.
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DVR User Manual