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CCTV Blog CCTV Software CCTV Questions CCTV Technical Support CCTV No Video

Initial Troubleshooting Questions

Here are some initial questions that you should answer when troubleshooting a security camera that has no video image.

• Is this an existing camera that was working and at some point had video loss? Follow these troubleshooting steps.

  1. Test Your Power Supply – get an adapter there’s LED on it or is it warm & working?

  2. Check Power Supply Box Fuses – if group of CCTV lost video, high chances is fuse blown.

  3. Test Camera on a Different DVR Port – unplug workable Camera cable to test on Lost Video BNC input.

  4. Use a Test Monitor – plug CCTV cable direct into a Analogo monitor to test video.

  5. Use a Test Cable and Spare Power Supply – get an external cable and mobile battery to power your faulty CCTV Camera.

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

  1. Confirm your Camera and DVR are Compatible – it might be codec AHD CVI TVI SDI, resolution 720 1080P, onvif protocol compatibility issue. 

Cheapest mode to diagnose, start with Power Adapter  check to make sure that you do not have a power supply problem. Many CCTV systems include individual DC power transformers for each camera (like the one in the above image). If you do not have a spare, you can loan free* security camera power supplies from SGCCTV Choicecycle (full refundable deposit).

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