User's Manual
336
●
HDD jumper is damaged.
●
HDD is broken.
●
Upgraded program is not compatible.
●
The recorded file has been overwritten.
●
Record function has been disabled.
7.
Video is distorted when searching local records.
There are following possibilities:
●
Video quality setup is too low.
●
Program read error, bit data is too small. There is mosaic in the full screen. Please restart the
DVR to solve this problem.
●
HDD data jumper error.
●
HDD malfunction.
●
DVR hardware malfunctions.
8.
No audio under monitor state.
There are following possibilities:
●
It is not a power picker.
●
It is not a power acoustics.
●
Audio cable is damaged.
●
DVR hardware malfunctions.
9.
There is audio under monitor state but no audio under playback state.
There are following possibilities:
●
Setup is not correct. Please enable audio function.
●
Corresponding channel has no video input. Playback is not continuous when the screen is
blue.
10.
System time is not correct.
There are following possibilities:
●
Setup is not correct.
●
Battery contact is not correct or voltage is too low.
●
Crystal oscillator is broken.
11.
Cannot control PTZ on DVR.
There are following possibilities:
●
Front panel PTZ error.
●
PTZ decoder setup, connection or installation is not correct.
●
Cable connection is not correct.
●
PTZ setup is not correct.
●
PTZ decoder and DVR protocol is not compatible.
●
PTZ decoder and DVR address is not compatible.
●
When there are several decoders, please add 120 Ohm between the PTZ decoder A/B cables
furthest end to delete the reverberation or impedance matching. Otherwise the PTZ control is
not stable.
●
The distance is too far.
12.
Motion detection function does not work.
There are following possibilities:
●
Period setup is not correct.
●
Motion detection zone setup is not correct.
Summary of Contents for DH-XVR Series
Page 1: ...AI Digital Video Recorder User s Manual ZHEJIANG DAHUA VISION TECHNOLOGY CO LTD V2 3 1...
Page 33: ...User s Manual 17 Figure 2 35 Fasten screws...
Page 110: ...User s Manual 94 Figure 5 50 Main menu...
Page 213: ...User s Manual 197 Figure 5 154 Smart search 4 Click the picture that you want to play back...
Page 218: ...User s Manual 202 Figure 5 160 Search results...
Page 307: ...User s Manual 291 Figure 5 263 Version 1 Figure 5 264 Version 2 Step 3 Click Apply...
Page 350: ...User s Manual 334 Figure 6 3 Legal information...
Page 378: ...User s Manual 362 Appendix Figure 7 7 Check neutral cable connection...
Page 384: ...User s Manual...