User's Manual
335
7 FAQ
1.
DVR cannot 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 jumper configuration.
●
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.
DVR frequently shuts down or stops running.
There are following possibilities:
●
Input voltage is not stable or it is too low.
●
HDD malfunction or something wrong with jumper configuration.
●
Button power is not enough.
●
Front video signal is not stable.
●
Working environment is too harsh, too much dust.
●
Hardware malfunction.
3.
Hard disk cannot be detected.
There are following possibilities:
●
HDD is broken.
●
HDD jumper 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.
●
DVR 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.
●
DVR and monitor resistance is not compatible.
●
Video transmission is too long or degrading is too huge.
●
DVR color or brightness setup is not correct.
6.
Cannot search local records.
There are following possibilities:
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