Dahua Technology XVR4 Series User Manual

FAQ 293
 Some program versions might have this problem. Please upgrade your system.
19. Alarm function is null.
There are following possibilities:
 Alarm setup is not correct.
 Alarm cable connection is not correct.
 Alarm input signal is not correct.
 There are two loops connect to one alarm device.
20. Remote control does not work.
There are following possibilities:
 Remote control address is not correct.
 Distance is too far or control angle is too small.
 Remote control battery power is low.
 Remote control is damaged or DVR front panel is damaged.
21. Record storage period is not enough.
There are following possibilities:
 Camera quality is too low. Lens is dirty. Camera is installed against the light. Camera
aperture setup is not correct.
 HDD capacity is not enough.
 HDD is damaged.
22. Cannot playback the downloaded file.
There are following possibilities:
 There is no media player.
 No DXB8.1 or higher graphic acceleration software.
 There is no DivX503Bundle.exe control when you play the file transformed to AVI via
media player.
 No DivX503Bundle.exe or ffdshow-2004 1012 .exe in Windows XP OS.
23. Forgot local menu operation password or network password
Please contact your local service engineer or our sales person for help. We can guide you to
solve this problem.
24. When I login via HTTPS, a dialogue says the certificate for this website is for other address.
Please create server certificate again.
25. When I login via HTTPS, a dialogue says the certificate is not trusted.
Please download root certificate again.
26. When I login via HTTPS, a dialogue says the certificate has expired or is not valid yet.
Please make sure your PC time is the same as the device time.
27. I connect the general analog camera to the device, there is no video output.
There are following possibilities:
 Check camera power supplying, data cable connection and other items.
 This series device does not support the analog camera of all brands. Please make sure the
device supports general standard definition analog camera.
28. I connect the standard definition analog camera or the coaxial camera to the device, there is
no video output.
There are following possibilities:
 Check camera power supplying, or camera data cable connection.

Dahua Technology XVR4 Series Specifications

General

Brand	Dahua Technology
Model	XVR4 Series
Category	DVR
Language	English