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 Post subject: Hd tvi ptz
PostPosted: Thu Sep 14, 2017 4:45 pm 
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Hello, I have an alibi hdtvi PTZ camera that has been working fairly well until recently. Over the last 6 months I started getting tears and complete video loss randomly. Sometimes days will pass with no issue other times I will loos video for a few minutes sometimes for several hours or days.

During the video outage today I decided to do some troubleshooting. The CVBS lead at the camera has video as well as the HDtvi lead. I found out when the DVR shows a video loss for the camera if I go out and I unhook the cameras TVI lead then hook up the CVBS the signal makes it back to the DVR.

I am extremely new to CCTV systems and I'm learning as I go. Recently I started reading about ground loops. Is it possible to have a ground Loop that knocks out the hdtvi signal.

Any suggestions would be helpful thank you very much in advance


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 Post subject: Re: Hd tvi ptz
PostPosted: Thu Sep 14, 2017 9:38 pm 
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Joined: Jan 2017
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Hello. Since you have had the DVR for a while, you might want to consider replacing the adapter that powers the cameras.


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