XtendLan NVR-12xxDP, Руководство пользователя

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8 FAQ
1. Device can not boot up properly.
There are following possibilities:
•
Input power is not correct.
•
Power connection is not correct.
•
Power switch button is damaged.
•
Program upgrade is wrong.
•
HDD malfunction or something wrong with HDD ribbon.
•
Seagate DB35.1
，
DB35.2
，
SV35 or Maxtor 17-g has compatibility problem. Please
upgrade to the latest version to solve this problem.
•
Front panel error.
•
Main board is damaged.
2. Device often automatically shuts down or stops running.
There are following possibilities:
•
Input voltage is not stable or it is too low.
•
HDD malfunction or something wrong wit the ribbon.
•
Button power is not enough.
•
Front video signal is not stable.
•
Working environment is too harsh, too much dust.
•
Hardware malfunction.
3. System can not detect hard disk.
There are following possibilities:
•
HDD is broken.
•
HDD ribbon is damaged.
•
HDD cable connection is loose.
•
Main board SATA port is broken.
4. There is no video output whether it is one-channel, multiple-channel or all-channel
output.
There are following possibilities:
•
Program is not compatible. Please upgrade to the latest version.
•
Brightness is 0. Please restore factory default setup.
•
There is no video input signal or it is too weak.
•
Check privacy mask setup or your screen saver.
•
Device hardware malfunctions.
5. Real-time video color is distorted.
There are following possibilities:
•
When using BNC output, NTSC and PAL setup is not correct. The real-time video
becomes black and white.
•
Device and monitor resistance is not compatible.
•
Video transmission is too long or degrading is too huge.