9 faq – DVR systems DVRxx04HF-U Series User Manual
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9 FAQ
1. DVR can not boot up properly.
There are following possibilities:
z
Input power is not correct.
z
Power connection is not correct.
z
Power switch button is damaged.
z
Program upgrade is wrong.
z
HDD malfunction or something wrong with HDD ribbon.
z
Seagate
DB35.1，DB35.2，SV35 or Maxtor 17-g has compatibility problem.
Please upgrade to the latest version to solve this problem.
z
Front panel error.
z
Main board is damaged.
2. DVR often automatically shuts down or stops running.
There are following possibilities:
z
Input voltage is not stable or it is too low.
z
HDD malfunction or something wrong wit the ribbon.
z
Button power is not enough.
z
Front video signal is not stable.
z
Working environment is too harsh, too much dust.
z
Hardware
malfunction.
3. System can not detect hard disk.
There are following possibilities:
z
HDD is broken.
z
HDD ribbon is damaged.
z
HDD cable connection is loose.
z
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:
z
Program is not compatible. Please upgrade to the latest version.
z
Brightness is 0. Please restore factory default setup.
z
There is no video input signal or it is too weak.
z
Check privacy mask setup or your screen saver.
z
DVR hardware malfunctions.
5. Real-time video color is distorted.
There are following possibilities:
z
When using BNC output, NTSC and PAL setup is not correct. The real-time video
becomes black and white.