Re: Bad port on DVR weird trouble shoot

[nick markowitz <nmarkowitz@xxxxxxxxx>]

On Sep 17, 5:49=A0am, G. Morgan <G_Mor...@xxxxxxxx> wrote:
> 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 =A0looks 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. =A0First time I have seen this usually the
> >port =A0just 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 =A0in over 5 years =A0of installing there cameras and DVR an=
y
> >one else run into it?
>
> Nope. =A0Are you sure its not a ground loop feedback?

No first thing I checked it is definitely the port doing it as soon as
any cam gets plugged into port 3 the DVR starts waking out