Unisight M4Core D-Seres Manual page 147

Digital Network Video Surveillance System
There are following possibilities:
 Setup is not correct
 Battery contact is not correct or voltage is too low.
Crystal is broken.

12. DVR can not 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. Can not 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.
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