mimix 0 Posted March 20, 2012 hi everybody ! first, sorry for my bad english, i'm french and i do what i can i have a problem with a cheap CCTV configuration in my house. i have installed 6 CCTV cameras with rj45 cable and balluns, a dedicated power supply 12V 150W and a digital recorder for CCTV with a lan access and a 2To hard drive... when i have installed all of that, that was perfect ! good captures and no parasites. but after 6 months.... argh ! can you help me to solve this problem ? Share this post Link to post Share on other sites
andy_jac2003 0 Posted March 20, 2012 Change frequency from outlets. Share this post Link to post Share on other sites
mimix 0 Posted March 20, 2012 i have ettempt many test today: change pal to nstc => the screen jump change quality while desactivate many cameras and level up quality and framerate on only one camera => no change remove the fan inside the vcr (maybe it cause parasites) => no change remove the hdd (power supply + sata) => no change plug only one camera => no change when i plug a playstation 1 to the vcr, nothing appears (maybe too high resolution...) when i plug a camera to a little 36cm TV, camera appears with a great quality ! my problem appears to be the recorder... but 100€ in the wind ... argh ! Share this post Link to post Share on other sites
Horizon 0 Posted March 21, 2012 Hello mimix. Maybe your 12V 150W power supply is faulty. Try connecting one camera to the recorder (use coax for this test), and use a different supply. From your pictures, it looks like the video signal is very weak and noisy. It might be a problem with your 12V supply, or your wiring. Maybe it is the recorder. Has anyone moved a computer, monitor, or TV near your recorder or camera wiring? Maybe you are getting interference from this? Share this post Link to post Share on other sites
mimix 0 Posted March 21, 2012 but when i plug them on a tv, no parasites... if it's the power supply, they should be here (the tv, for the test, is near to the vcr in a special 19" bay without sector parasites, same as all cables and 12v power supply for cameras and vcr) Share this post Link to post Share on other sites
mimix 0 Posted March 21, 2012 i have does the test with a new power supply only for the dvr... it appears better. i'll look during a week if it's constant. Share this post Link to post Share on other sites
