Re: Bad port on DVR weird trouble shoot

[G. Morgan <G_Morgan@xxxxxxxx>]

nick markowitz Wrote:

>CCTV system i put in couple years back has been working fine and
>customer called to say cameras pictures rolling all over them selves.
>Get there and  looks like AC feeding into video find camera 3 causing
>problem so I isolate it and start testing and camera is not bad but
>here the port on DVR is bad.  First time I have seen this usually the
>port  just goes dead on a DVR not doing the rollover thing. its a
>EV4000 Nuvico and first time I have ever had a problem with any of
>there stuff  in over 5 years  of installing there cameras and DVR any
>one else run into it?

Nope.  Are you sure its not a ground loop feedback?