safeandsoundss 0 Posted August 1, 2016 Having trouble with colorful vertical lines which move across the screen. Its an old apartment complex. Cat5e cable to a power balun. 24v ac power supply. I have installed ground loop isolators which have helped a little. Any advice? Share this post Link to post Share on other sites
SunnyKim 2 Posted August 1, 2016 Ask HikVision. Or Ask Techpoint who supplies the HD-TVI receiver chip set to Hikvision. Share this post Link to post Share on other sites
tomcctv 190 Posted August 1, 2016 Ask HikVision. Or Ask Techpoint who supplies the HD-TVI receiver chip set to Hikvision. Techpoint supplies. But another classic chip post Share this post Link to post Share on other sites