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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.
Possible reasons are as followed:
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.
9. THERE IS AUDIO SIGNAL IN THE SURVEILLANCE WINDOW BUT MO AUDIO SIGNAL IN THE PLAYBACK STATE
Possible reasons are as followed:
1. Setting issues: the audio option is not chosen.
2. The according channel is not connected with the video.
10. THE TIME IS WRONG
Possible reasons are as followed:
1. Setting is wrong..
2. The battery is in bad connection or the voltage is too low.
3. The oscillation is damaged.
11. THE DVR CAN NOT CONTROL THE PTZ
Possible reasons are as followed:
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.
12. THE MOTION DETECT IS NOT WORKING
Possible reasons are as followed:
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.
13. I CAN NOT LOGIN VIA WEB
Possible reasons are as followed:
1. The system is windows 98 or windows me. We recommend updating to windows 2000sp4 or higher edition or
installing the software for low edition.
2. ActiveX is hold back.
3. The edition is not exceeded dx8.1. Update the display card driver.
4. Network connection failure.
5. Network setting issues.
6. Invalid password or user name.
7. The user edition is not matched the DVR program edition.
14. THE IMAGE IS NOT CLEAR OR THERE IS NO IMAGE IN NETWORK PREVIEW STATE OR VIDEO FILE PLAYBACK STATE
Possible reasons are as followed:
1. Network is not stable.
2. The user machine is resource limited.
3. Choose the play-in-team mode in the network setup of DVR.
4. The region shelter or channel protection is set.
5. The user has no surveillance purview.
6. The real-time image of the hard disk recording machine itself is not clear.
15. NETWORK CONNECTION IS NOT STABLE
Possible reasons are as followed:
1. Network is not stable.
2. IP address is conflicted.
3. MAC address is conflicted.
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