John_ch 0 Posted June 25, 2022 Hi all, I am having trouble connecting a Samsung ptz camera to my Hikvision system. When connected it flickers between a dark picture to normal for a brief second. When it is bright, I can control it via the coax and dvr. When it’s dark, nothing! Any ideas? I will link a couple of clips. https://www.facebook.com/100005618645184/videos/1249441082494607/?fs=e&s=cl https://www.facebook.com/100005618645184/videos/1442446726198211/?fs=e&s=cl i forgot to say, If I connect it directly to my monitor and joystick control, it’s perfect. Also when I use my test monitor Share this post Link to post Share on other sites
tomcctv 190 Posted June 25, 2022 Hi that looks like a power problem how are you powering the camera and type of cable you are using Share this post Link to post Share on other sites
John_ch 0 Posted June 25, 2022 Hi Tom, I am using a 24v box that has 8 connections available. Only using one and it’s powered with the shotgun cable. What’s annoying is…. When I put it on the test monitor, the picture is perfect. The same if I plug it directly into the monitor and use the joystick pad, perfect picture. It’s only when I connect to the dvr. Even a short patch lead gives me the same problem. I have 2 cameras and they both give the same results. All my 12v cameras are perfect. Share this post Link to post Share on other sites
tomcctv 190 Posted June 25, 2022 Hi can you turn the power cables red into - and black into + …… only at power supply end also what size is your power supply Share this post Link to post Share on other sites
John_ch 0 Posted June 25, 2022 Hi Tom, changing the polarity does not make any difference. The power supply is a pow500 6A with 6 outputs. Share this post Link to post Share on other sites
tomcctv 190 Posted June 25, 2022 Ok not a good power supply is this the fuse type or auto reset type (no fuse each channel) are you in the uk Share this post Link to post Share on other sites
John_ch 0 Posted June 25, 2022 It has a fuse in each channel and yes I’m in the UK Share this post Link to post Share on other sites
tomcctv 190 Posted June 25, 2022 Ok for over 1amp one fuse needs to be changed and rest of fuses removed how far is ptz from power supply and dvr which bosh are you using ? do you have a multi meter Share this post Link to post Share on other sites
John_ch 0 Posted June 25, 2022 Thanks again for the help! so remove all the fuses and replace with a single 6amp? It’s a Samsung SCP-3371P, my multimeter is with a friend (going to pick it up tomorrow) would a separate 24v supply be better? Share this post Link to post Share on other sites
tomcctv 190 Posted June 26, 2022 22 hours ago, John_ch said: would a separate 24v supply be better Hi. How many cameras do you have on the supply ? also still need to know how far power run is. the multi meter is to check the voltage on the BNC at back of dvr for ptz Share this post Link to post Share on other sites
John_ch 0 Posted June 26, 2022 Hi, I only have the 1 camera on this supply, the others are on a 12v box. The run is only about 30’ Share this post Link to post Share on other sites
