Help: HD-TVI Image Problem? Diagonal Scrolling Lines?

Hello Everyone,

I recently had a set of HD-TVI cameras upgraded, but the image quality on a few of them is awful... there are diagonal lines across the picture.

Attached is a small snippet of the video - but you can clearly see the lines.

Is this a problem with the camera, interference, or a ground loop problem?

Has anyone seen a similar issue with TVI cameras?

Thanks.

redo the connectors and make sure the wiring harness not bet when mounted on wall. if this did not solve clear clean pic, its the camera. iy look as if it is grounded . I was so pissed i ran new wiring and return for new camera. it solved my issue. swap cameras if solves it. can be connector, wiring harness, or even wire

Are these cams wired or wireless? I scratched wireless cams long ago because of radio interference and wired my system. If wired, you might consider buying some better video cables. The cheap stuff doesn't cut it.