ProScan NC691B, Operation Manual, Page: 47 / 47

43
Solution
: Modify the physical address of Network High Speed Dome.
Possible Reason 5 : Web port has been modified
Solution : Contact Network Administrator to obtain related information.
5.The color of images is abnormal (green or other colors).
Sometimes Network High Speed Dome images cannot display properly for the difference between Graphics Cards, the images
appears to be green or other colors, then you should run the programme Config.exe (or run C:\windows/ system32\Config.exe)to
set the following parameters of display buffer: auto-detection, used display card memory or system memory, then reopen IE and
connect Network High Speed Dome.
6.There is no sound while monitoring.
Possible Reason 1: No audio input connection
Solution: Check audio connection of the host
Possible Reason 2: The audio option of Network High Speed Dome is off
Solution: Check audio parameter settings to see if you have opened the audio.
7.Search NVS software cannot find device.
Possible reason: Search NVS software adopts multicast protocol to perform searching. But the firewall forbids multicast data packet.
Solution: Disable the firewall.
8.Image processing doesn’t work properly.
Possible Reason 1: System issue, DirectX function is disabled, which will cause slow display of images and abnormal color.
Possible Reason 2: Hardware issue, graphics card doesn’t support image acceleration and hardware zooming functions.(For
hardware issue, the only solution is to replace graphics card)
Solution: Install DirectX image drive, then Start

Run

input “ Dxdiag ”order.
Enable DirectDraw speedup, Direct3D speedup, AGP veins speedup in DirectX function. If they cannot be enabled,
that means DirectX installation fails or hardware not supportive.