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Wired Security Camera Troubleshooting Guide

Follow the steps below to troubleshoot issues with wired security cameras.

No Picture / Signal

  • Ensure the camera power adapter is plugged in and that the outlet it is plugged into is receiving power. If the camera is plugged into a surge protector, ensure the surge protector is on.

    TIP: To check to see if the camera is receiving power, cover the light sensor with your finger. This causes the camera to activate night vision. If the camera is receiving power, the night vision LED's in the camera will glow red, and you may hear a clicking sound in some cameras that have an Auto Mechanical IR Cut Filter.
    Camera Light Sensor

  • Ensure video cables are properly connected to the DVR / TV.
  • Switch the extension cable that is connected to the camera with another extension cable to check if there is an issue with the extension cable run.

No Picture / Signal when Connected to TV

  • Ensure your TV has the correct input channel selected. Common terms of an input channel include: INPUT, AV, CHANNEL, LINE1, LINE2, AUX.

No Picture / Signal when Connected to DVR

  • Ensure the DVR is properly connected to your TV / monitor and that the correct input channel is selected.
  • Ensure the camera video cable is connected to a Video Input (sometimes referred to as Video IN or Camera IN) port.
  • Connect the camera to a different channel on the DVR.
  • Ensure that the channel the camera is connected to does not have Covert Recording enabled. Covert Recording will hide the channel from being viewed locally. Check your DVR Instruction Manual for details on disabling Covert Recording. Not all DVR's support Covert Recording.

Camera BNC Connection does not Connect to TV

  • Use a BNC to RCA adapter (model # BNCB) at the end of the extension cable.

 

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Picture is too Bright

  • Ensure the camera is not pointed directly at a source of light, such as the sun or a spot light.
  • If your camera has an adjustable sunshade, slide it forward to block excess light.
  • Adjust the brightness and contrast settings on the device your camera connects to (TV / monitor / DVR).
  • Move your camera to a different location.
Adjustable sunshade

Picture is too Dark

  • Adjust the brightness and contrast settings of the device your camera connects to (TV / monitor / DVR).
  • If using during the day, the camera may not be getting enough light:
    • Adjust the camera position as needed.
    • If your camera has an adjustable sunshade, slide it backwards to let in more light.
    • Move the camera to a different location.

Picture is not Clear

  • The camera lens may be dirty. Check the camera lens for dirt, dust, spiderwebs, etc. Clean the lens with a soft, clean cloth. Do not use harsh cleaners or aerosol cleaners.
  • Your extension cable run may be too long. See the Camera Cables and Connectors Guide for more information.
  • On varifocal cameras, the camera's focus and zoom settings may need to be adjusted. Varifocal cameras may require adjustment from time to time.

Zoom and focus knobs on Lorex varifocal bullet camera

Zoom and Focus knobs on Lorex varifocal bullet camera

Video is Permanently Black and White (Even During Day Time)

  • The camera may not be getting enough light. Change the camera position or move the camera to a different location.
  • Your extension cable run may be too long. See the Camera Cables and Connectors Guide for more information.

Night Vision is not Working

  • The night vision activates when light levels drop. The area may have too much light.

Bright Spot in Video when Viewing Camera at Night

  • This occurs when a camera is pointed at a window to see outside, because the night vision LED's produce Infrared light that reflects off the glass. Move the camera to a different location.
camera pointed through a window during the day Night vision reflected off window
Camera pointed out of a window (daytime) Camera pointed out of a window (nighttime)

Last Updated: 4/21/2012

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