IC Realtime Combo Series: 8 Channel DVR with built-in 19 LCD monitor - Manual (Page 129)

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z Battery contact is not correct or voltage is too low.
z Crystal is broken.
12. Combo DVR can not control PTZ.
There are following possibilities:
z Front panel PTZ error
z PTZ decoder setup, connection or installation is not correct.
z Cable connection is not correct.
z PTZ setup is not correct.
z PTZ decoder and combo DVR protocol is not compatible.
z PTZ decoder and combo DVR address is not compatible.
z 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.
z The distance is too far.
13. Motion detection function does not work.
There are following possibilities:
z Period setup is not correct.
z Motion detection zone setup is not correct.
z Sensitivity is too low.
z For some versions, there is hardware limit.
14. Can not log in client-end or web.
There are following possibilities:
z 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
combo DVR is not compatible with Windows VISTA control.
z ActiveX control has been disabled.
z No dx8.1 or higher. Please upgrade display card driver.
z Network connection error.
z Network setup error.
z Password or user name is invalid.
z Client-end is not compatible with combo DVR program.
15. There is only mosaic no video when preview or playback video file remotely.
There are following possibilities:
z Network fluency is not good.
z Client-end resources are limit.
z There is multiple-cast group setup in combo DVR. This mode can result in mosaic.
Usually we do not recommend this mode.
z There is privacy mask or channel protection setup.
z Current user has no right to monitor.
z Combo DVR local video output quality is not good.