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Digital Video Recorder
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Crystal is not broken.
12. DVR cannot control PTZ.
There are following possibilities:
u Front panel PTZ error
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PTZ decoder setup, connection or installation is not correct.
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Cable connection is not correct.
PTZ setup is not correct.
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PTZ decoder and DVR protocol is not compatible.
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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.
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Otherwise the PTZ control is not stable.
The distance is too far.
13. Motion detection function does not work.
There are following possibilities:
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Period setup is not correct.
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Motion detection zone setup is not correct.
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Sensitivity is too low.
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For some versions, there is hardware limit.
14. Cannot log in client-end or web.
There are following possibilities:
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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.
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ActiveX control has been disabled.
No dx8.1 or higher. Please upgrade display card driver.
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Network connection error.
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Network setup error.
Password or user name is invalid.
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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:
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Network fluency is not good.
Client-end resources are limit.
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There is multiple-cast group setup in DVR. This mode can result in mosaic. Usually
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we do not recommend this mode.
There is privacy mask or channel protection setup.
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Current user has no right to monitor.
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DVR local video output quality is not good.
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