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Security camera Problem with Smoke Detectors I have a new varifocal camera i put on my 8 channel dvr. it was ok last night in black and white with leds on and for the first hour after switching to color, but then it began flickering badly and i noticed that when it flickers it also has images from my other cameras feeding through on that channel. it has osd so i tried adjusting white balance and used a different power supply but nothing works. the other images feeding through on that line from my other cameras is puzzing. any ideas?

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6ya6ya
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Posted on Jan 02, 2017

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  • 68 Answers

SOURCE: Picture - Flickers/Shimmers

I think the solution to your problem is adjustment, not of the brightness but either the `contrast' which is probably too high, or the `sharpening' if your set has this function. Too much sharpness will cause a shimmering effect, especially where you see an edge between colours.(due to ringing at a very high video frequency). Too much contrast can start to turn the video signal upside down, causing noise on the peak white in the picture. Another cause is if the RF signal into the aerial socket is too large, This can be corrected by an attenuator, costing about £2. 6dB or 10dB can be tried.

Posted on Oct 25, 2006

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old marine
  • 2005 Answers

SOURCE: The image veiwing window is mostly black, with horizontal

It sounds like your CCD image sensor is bad. Canon has issued a world wide technical notice regarding this, and will repair it at no cost if this is determined to be the problem, regardless of warranty.

Posted on Dec 09, 2008

  • 2 Answers

SOURCE: Toshiba 50HDX82 screen flickers at the top

Replace the Hyper Board, There 11 10uf 16v cap's that go bad.
Common Problem with this set

Posted on Feb 16, 2009

  • 1 Answer

SOURCE: Image flicker when viewing pictures in playback mode

You have the camera in Highlights mode.. while in playback use the up,down,right,left pad press it up and it will go through different displays like what settings you had the camera in when you took the picture then there is a graph screen... after that one is the highlights display which is what you have it on. Push up one more time to have it on regular playback mode. The manual explains this much better than I just did. If you have the manual you should check it out if my instructions dont help.

Posted on Apr 19, 2009

electrotech1
  • 1126 Answers

SOURCE: I have a 32" Vizio.

It does sound like a power supply problem, that caps may look good, but that don't mean that they are good.. You really need a ESR meter to test caps, but the tester is about 200, but from experience, I fine that the lower microfarads are the ones that go bad and look like they are fine. I repair LCD everyday at work and from what you are telling me, it is the power supply, replace low value caps, like the 1, 10 , 33, 50 farads. That should take care of your problem.

Posted on Dec 09, 2010

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