1 The recoding 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.
6.There is no audio signal in the surveillance window.
Possible reasons are as follows:
1 It is not an active tone arm.
2 It is not an active sound box.
3 The audio lines are damaged.
4 The hardware of the DVR is damaged.
7.There is audio signal in the surveillance window but mo audio signal in the playback state.
Possible reasons are as follows:
1 Setting issues: the audio option is not chosen.
2 The according channel is not connected with the video.
8.The time is wrong.
Possible reasons are as follows:
1 Setting is wrong.
2 The battery is in bad connection or the voltage is too low.
3 The oscillation is damaged.
9.The DVR can not control the PTZ.
Possible reasons are as follows:
1 There is something wrong with the frontal PTZ.
2 The setting, connection or the installation of the PTZ decoder is not correct.
3 The connections are not correct.
4 The PTZ setting of the DVR is not correct.
5 The protocols of the PTZ decoder and the DVR are not matched.
6 The address of the PTZ decoder and the DVR are not matched.
7 When multiple decoders are connected, the far port of the PTZ decoder line A (B) must connect a 120
resistance to reduce the reflection otherwise the PTZ control is not stable.
8 The distance is too far.
10.The motion detect is not working,
Possible reasons are as follows:
1 The time range set is not correct.
2 The motion detect area set is not correct.
3 The sensitivity is too low.
4 Limited by some hardware edition.
11.I can not login via web.
Possible reasons are as follows:
1 The system is windows 98 or windows me. We recommend updating to windows 2000sp4 or higher edition or
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