User’s Manual
351
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. 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. Upgrade to the latest version.
Brightness is 0. 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:
Summary of Contents for DH-XVR42 AN-I Series
Page 1: ...AI Digital Video Recorder User s Manual V2 0 0 ZHEJIANG DAHUA VISION TECHNOLOGY CO LTD...
Page 185: ...User s Manual 175 Details Click Register ID Register ID Click to add a face picture...
Page 236: ...User s Manual 226 Details Click Register ID Register ID Click to add a face picture...
Page 312: ...User s Manual 302 Main stream Sub stream...
Page 315: ...User s Manual 305 Version 1 Version 2...
Page 360: ...User s Manual 350 Legal information...
Page 386: ...User s Manual 376 Appendix Figure 7 7 Check neutral cable connection...
Page 392: ...User s Manual...