hitsnero.blogg.se - Night owl camera system no signal on all cameras

If you have a test monitor that can supply power to your camera, connect the power output of the monitor to your camera. If you do not get a video signal, disconnect the power cable from your camera.Disconnect the video cable from your camera and use a short RG59 BNC jumper cable to connect the video output of the camera to the BNC input of the test monitor. If your camera is already mounted and connected to a power supply, I recommend that you first only connect the camera’s video to the input of the test monitor.Here are the steps that I recommend if you are going to use a test monitor to troubleshoot. Many CCTV testers, like the one above, have a 12V DC power output that can be used to supply power to your camera. Using a test monitor, you can temporarily eliminate the power and video cable that your camera is using. One of the most common problems when a camera is not displaying video is a bad cable or BNC connection. Using a test monitor is one way to do this.Ī CCTV test monitor is extremely helpful when troubleshooting camera video issues. If you have confirmed that your power supply is working properly and that the ports on your DVR are also working properly, the next step would be to determine if you have a bad power or video cable. If the troubled camera works and the camera that was working does not work, then you have a bad input port on your DVR. Does the working camera show video on the other BNC port? Does the troubled camera display video on the other port? Plug the BNC connector of the camera that is working into the port of the camera that is not working. Simply disconnect the BNC video connector of the troubled surveillance camera from the back of your digital video recorder and plug it into one of the ports where a working camera is plugged in. It is a simple thing to test, so you may as well give it a try before you spend time on the other troubleshooting steps. This is uncommon, but it is possible that one of the BNC video input ports on your security camera DVR went bad. Confirm that the wire power connections are securely in place and have not become loose or disconnected.Disconnect each camera one at a time to see which one is causing the problem. If they are not, you may have a short circuit somewhere. If your power supply box uses PTCs, instead of fuses, confirm that the LED light are on for all channels.

If one is burnt out, the LED light under that particular fuse will be off.

If your power supply box uses traditional fuses, confirm that none of the fuses are burnt out.

Make sure that the the power switch is turned on and the LED status lights are on.

Both types have an on / off switch the control power to the entire unit.įollow these steps to troubleshoot your power supply box. The one on the right uses PTC “auto reset fuses”. The one on the left uses traditional one time use fuses. The above image shows the inside of two CCTV power supply boxes. If your security camera system uses a CCTV power supply box, I recommend that you check the fuses inside the box. Plug it in and test to see if you camera now displays video. Most are 12V DC.ĭisconnect your existing power supply from the cable and attach your spare. If you do not have a spare, you can find security camera power supplies here.īe sure to look at your existing power supply to confirm whether it is 12V DC or 24VAC. Many CCTV systems include individual DC power transformers for each camera (like the one in the above image).

Confirm your Camera and DVR are Compatibleīefore you go through the trouble and expense of buying a test monitor or a spare CCTV cable, I recommend that you check to make sure that you do not have a power supply problem.

Is this a new security camera or DVR? Do this first.

Use a Test Cable and Spare Power Supply.

Is this an existing camera that was working and at some point had video loss? Follow these troubleshooting steps.Here are some initial questions that you should answer when troubleshooting a security camera that has no video image. It applies to analog CCTV cameras and HD coax security cameras. The guide is used for hard wired security cameras that use BNC connectors and coax cable. Here is a guide for CCTV troubleshooting no picture issues. At CCTV Camera Pros, we regularly hear from people that need help saying “my CCTV camera is not working”.