In this article we intend to help solve common faults in a cctv camera. The problems start when we stop seeing the image of a camera on the screen of the DVR or recorder, it is important to know that the point of failure can be varied, mention you them here to help you locate the problem.
First check that the camera really this going on, this can verify it by connecting the camera to a power supply in good condition and as well as possible covering the infrared camera, this mode if the go really light at the time of detecting missing light, then the camera is not damaged.
Fault in the camera: we can have the camera image on the screen however do not necessarily have to be this that is damaged, in this case we must review two points:
- The power supply to 12V this operating correctly i.e. to actually measuring the output of the source to be us this by delivering the proper voltage.
- Measure the power supply to keep current this know it measuring that the transformer has 127 v input
In the delivery of the video: when we don’t have video in a cctv camera also can be product of the failure of other accessories such as this:
- The BNC connectors in the wiring of video terminals, sometimes these connectors can oxidize or come loose so the first thing is to check that these connectors are in good condition and that they are not loose.
- Check that the wiring is in good condition and that can revise it testing the continuity of the cable joining the mesh in the center of the cable end and measuring continuity to the other end.
Failures in a cctv camera is not necessarily social in that they no longer see, can also start to see spots or streaks in picture as if it was rain. These types of failure are usually due to noise induced by electric current or have connected inductive as engines within teams of the same line as the cameras causing us interference in image quality. We must remember that wiring the video from the camera must have a separate pipeline and should not be mixed with electric current to 127 v, also if it is possible to have a separate circuit to power cameras and thus avoid interference in the image.