Question about JVC Tk-C920u 1/3" CCD Super Lo-Lux Hi-Res 535tvl Color Security Camera

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Bad Picture quality when AC powered

When I power my camera with a 24vac supply the image is extremely noisy but when powered via 12vdc it is clear. Any suggestions

Posted by bocoin on

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Louie Role

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Hi,

Based on your post/description, your power supply is faulty.
1. It your 24VAC adapter/power supply is the original one that came with the camera, then most likely a component failure inside. More often it is the filter capacitor.
2. If it is a replacement, then possibly the ratings are not compatible with the camera, specifically the current or power (Amps or Watts).
3. In some instances the built-in regulator might be shot since your source is 24 but your load rewuires only 12.

Hope this be of some help/idea. Post back how things turned out or should you need additional information.

Good luck and kind regards.

Posted on Oct 26, 2007

  • Louie  Role
    Louie Role Oct 26, 2007

    Hi again,

    In some camera models, there is also a voltage regulator/capacitor inside the camera.

    Cheers.

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