mkstretch 0 Posted June 3, 2015 My power supply is make big like a clicking kinda sound and the green lights inside are flickering. My CCTV camera are also not coming in the picture is rolling and flickering. Any ideas? Thanks guys. Share this post Link to post Share on other sites
rmfjr78 0 Posted June 4, 2015 grab a a cheap 12 v transformer and plug a few cameras into it to test em. If they come up and function, your power supply is shot. Also, you can use a multimeter on DC and check the terminals to make sure they are sending 12-13 volts constant. Also check the voltage at the cameras themselves. Share this post Link to post Share on other sites
