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3. If the problem persists, replace a hard disk drive.
GV-Tower DVR/NVR/VMS System V2 suffers virus attack.
GV-Tower DVR/NVR/VMS System V2 is designed and optimized for Windows 7 platform. It
may be vulnerable to newly created worms and exploits that attack any of the underlying
operating system's previously undocumented flaws. If your GV-Tower DVR/NVR/VMS System
V2 suffers virus attack, try restoring the operating system and GV-System Software by using
the Recovery. Refer to 3.13.1 Restoring System.
GV-Tower DVR System V2 has video and/or audio lost.
If your GV-Tower DVR System V2 fails to show video, audio or both, try these steps:
1. Check the video/audio connection. Make sure one end of the LFH audio & video cable is
securely connected to the video/audio device, and the other end to the video/audio port of
the GV-Tower DVR System V2.
2. Make sure the video/audio device is turned on.
3. Switch the cable from the functional channel to the non-functional channel, and vice versa.
If the previously non-functional channel is now able to deliver video/audio, you should
check the video/audio device itself and its related cables.
The screen image appears distorted or jitters.
If the screen image seems to be distorted, jitter, or not to look right, try these steps:
1. Make sure the video standard in your country matches the setting in the GV-Tower
DVR/NVR System V2. Refer to 3.13.2 Configuring GV-Tower DVR System V2 for PAL.
2. Make sure the camera and its cable are not damaged or frayed. Try to replace a camera
or camera cable to see if this fixes the problem.
How can I find more help?
1. Visit our website at
2. Write us at
dvrsystem@geovision.com.tw
http://www.geovision.com.tw/english/4_1.asp
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Troubleshooting
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