Dahua XVR User Manual

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 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. Can not search local records.
There are following possibilities:
 HDD ribbon 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 ribbon error.
 HDD malfunction.
 DVR hardware malfunctions.
8. There is no audio when monitor.
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 when monitor but there is no audio when system playback.
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. Time display is not correct.
There are following possibilities:
 Setup is not correct
 Battery contact is not correct or voltage is too low.
 Crystal is broken.
11. DVR can not control PTZ.
There are following possibilities:
 Front panel PTZ error

Dahua XVR Specifications

General

Channels	4/8/16
Video Compression	H.265/H.264
Audio Input	Yes
Audio Output	1 channel RCA
Video Output	HDMI/VGA
Recording Resolution	720P
HDD	1 SATA
Network Interface	RJ45
USB Interface	2 USB 2.0
Power Supply	12V DC
Operating Temperature	-10 °C to +55 °C