Dahua HCVR5104C User Manual page 630

11. Time display is not correct.
There are following possibilities:
Setup is not correct

Battery contact is not correct or voltage is too low.

Crystal is broken.

12. DVR cannot control PTZ.
There are following possibilities:
Front panel PTZ error

PTZ decoder setup, connection or installation is not correct.

Cable connection is not correct.

PTZ setup is not correct.

PTZ decoder and DVR protocol is not compatible.

PTZ decoder and DVR address is not compatible.

When there are several decoders, please add 120 Ohm between the PTZ

decoder A/B cables furthest end to delete the reverberation or impedance
matching. Otherwise the PTZ control is not stable.
The distance is too far.

13. Motion detection function does not work.
There are following possibilities:
Period setup is not correct.

Motion detection zone setup is not correct.

Sensitivity is too low.

For some versions, there is hardware limit.

14. Cannot log in client-end or web.
There are following possibilities:
For Windows 98 or Windows ME user, please update your system to Windows

2000 sp4. Or you can install client-end software of lower version. Please note
right now, our DVR is not compatible with Windows VISTA control.
ActiveX control has been disabled.

No dx8.1 or higher. Please upgrade display card driver.

Network connection error.

Network setup error.

Password or user name is invalid.

Client-end is not compatible with DVR program.

15. There is only mosaic no video when preview or playback video file remotely.
There are following possibilities:
Network fluency is not good.

Client-end resources are limit.

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