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Appendix A Troubleshooting, Daily
Maintenance and Glossary
5.
Cannot search local recordings
Possible reasons:
•
HDD ribbon is damaged
•
HDD is damaged
•
Upgraded program is not compatible
•
The recorded file has been overwritten
•
The Record function has been disabled
6.
Video is distorted when searching local recordings
Possible reasons:
•
Video quality setup is too low
•
Program read error, bit data is too small. If there is a mosaic pattern in the full screen—
Restart the NVR to solve this problem
•
HDD data ribbon error
•
HDD malfunction
•
NVR hardware malfunction
7.
Time display is not correct
Possible reasons:
•
Setup is not correct
•
Battery contact is not correct or voltage is too low
•
Crystal is damaged
8.
NVR cannot control Pan/Tilt/Zoom (PTZ)
Possible reasons:
•
Front panel PTZ error
•
PTZ decoder setup, connection or installation is not correct.
•
Cable connection is not correct.
•
Distance from NVR to PTZ is too long
•
PTZ setup is not correct.
•
PTZ decoder and NVR protocol is not compatible.
•
PTZ decoder and NVR address is not compatible
9.
There is a mosaic pattern on the screen—no video when viewing live video or playback file
Possible reasons:
•
Poor network quality
•
Client end resources are limited
•
There is a multicast group setup on the NVR. This mode can result in a mosaic screen.
Usually this mode is not recommended.
•
There is a Privacy Mask or channel protection setup
•
Current user does not have proper rights to monitor
•
NVR local video output quality is of poor quality
NVR7400 Series User Guide
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Содержание NVR7400 Series
Страница 1: ...ADT NVR7400 Series Network Video Recorder User Guide...
Страница 17: ...2 Getting Started 1 3 4 Network Connections Figure 1 5 NVR7400 Series User Guide 7...
Страница 50: ...Hybrid Standalone NVR User Guide 3 Local Menu Operations NVR7400 Series User Guide 40...
Страница 137: ...Hybrid Standalone NVR User Guide 3 Local Menu Operations Figure 3 90 NVR7400 Series User Guide 127...