VDH-NK160
Hardware Manual
10
Q 8.
No audio sound
A : The possible causes:
1. Not powered-speaker
2. Audio cable error
3. NVR hardware error
Q 9.
Live video with audio, but no sound when playback
A : The possible causes:
1. Wrong setting: audio not enabled
2. No video to the paired channels; when the screen is blue, playback will
be choppy.
Q 10.
Wrong time
A : The possible causes:
1. Wrong settings
2. Bad battery connection or low voltage
3. Bad frequency oscillator
Q 11.
Motion detection not function
A : The possible causes:
1. Wrong schedule setting
2. Wrong area setting
3. Low sensitivity
4. Hardware limitation for different version
Q 12.
Fail to login by using client software or Web browsers
A : The possible causes:
1. Operating system is Win98 or Win Me and the client software cannot
be installed or displayed normally; Upgrade the operating system to
Win2000sp4 or above, or use lower versions of the client software.
2. ActiveX control blocked; install the ActiveX control in the attached CD.
3. DX8.1 or above not installed; upgrade the display driver.
4. Networking error
5. Wrong Networking settings