DISCOVER
×

How to repair a CCTV security camera

Updated July 20, 2017

A closed circuit television (CCTV) security camera is a good way to ensure safety in a public building, but as with any type of electronic equipment, there are possible performance problems. Such issues include the camera not sending images to the monitoring station, sending blurry images and images flickering on the monitor. Depending on the problem you encounter, there are several solutions.

Check the main power cord. If it is not securely plugged into an AC outlet, plug it in. (See Source 1)

Check the cables. If any of the cables is loose or disconnected, securely reconnect it. (See Source 1)

Check the IRIS mode select switch. If you are using a DC driven auto iris lens, it should be set to "DC" mode. If using a video driven auto iris lens, it should be set to "VI" mode. (See Source 1)

Check the camera's lens for dirt or other contaminants. Use a soft cloth to clean both sides of the lens. (See Source 1)

Adjust the focus on the lens until the picture on the monitor comes in clearly. (See Source 1)

Set the iris select switch to "ES" mode if you are using a manual iris lens. (See Source 1)

Adjust the direction if the camera is facing fluorescent lighting or an area with too much sunlight, as these can cause interference with images. (See Source 1)

Check the iris mode select switch. If you are using a DC driven auto iris lens, it should be set to "DC" mode. If using a video driven auto iris lens, it should be set to "VI" mode. (See Source 1)

Set the iris select switch to "ES" mode if you are using a manual iris lens. (See Source 1)

Tip

Problems with the colour of the images on your monitor may be signs of a problem with your monitor and not the camera itself. (See Source 1)

Cite this Article A tool to create a citation to reference this article Cite this Article

About the Author