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Yellowish-green area in picture

Thanks for the suggestion. However, mine is an LCD projecrtion set, so de-gaussing is likely not an answer here, The model is Hitachi 60V715. I appreciate you.

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  • 4caster Jun 16, 2008

    Does the lamp fail slowly, yielding the yellowish-green area, or does it fail suddenly and completely? The lamp is supposed to be user serviceable, but I don't know how to gain access to it. (Hitachi model 60V715)

  • Nathan Ayers
    Nathan Ayers May 11, 2010

    Ya i reposted right after what to do thanks for the clarification though. If you had read a few of my comments you would've seen all the information you needed.


    Thanks anyway,

    Nathan


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Its your bulb anyways its just old and needs replacement. As stated by Hitachi's FAQ on the problem your having. call a technician for a new bulb. and have him clean the bulbs and mirror and your fine. since its a hitachi the color guns can only become misaligned if you drop it 10 stories (not really, but just about).

hope it helps,

if not you can rate whoever for the FixYa.

Thanks,
Nathan

Posted on Jun 16, 2008

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I HAVE A MATSUI 28WN20 CRT TELEVISION AND ITS COLOUR HAS TURNED REALLY WEIRD. FOR EXAMPLE BLOOD SPLATTER COMES UP AS GREEN AND ALL THE REST OF THE COLOURS YOU SEE ARE ONLY PURPLE AND GREEN .


Hi, this sounds like your TV needs De-Gaussing, the screen has become magnetised and the electrons being fired at the screen are being diverted or scattered and mixed to the area's that are magnetised creating the odd colours, what you need is a de-gaussing coil, you can wave this in a pattern to de-magnetise the screen thus allowing the electrons to flow properly to the screen, it may also be the PTC on the tv's PCB near the mains input, if this is faulty the tv's own degaussing coil may not operate properly, you local TV technician maybe able to help with this as the part is specific to the TV, they maybe able to degauss it too for a small fee.

Here's a better expaliation ---> CLICK HERE <---- it shows a circular pattern here but there are many kinds of pattern magnetism can create but the colours are nearly always the same just in different places witn different strengths.

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1 Answer

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Top portion of the screen is some what green. Every thing else is OK


If you have green patching or anyother colour patching on the screen, your TV may need de-gaussing. The problem is caused when a magnetic field comes close to the TV. A simple solution can often be achieved with a fridge magnet, by moving it over the green patch and pulling it away in certain directions may solve the problem. A TV tech will have a de-gaussing coil which can solve the problem in a matter of minutes.

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HI...
I t sound like the De-gauss circuit has failed.
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1 Answer

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1 Answer

Degaussing problem


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1 Answer

Colourful picture


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The other scenario is that someone (small child generally) has run a magnetic object very near to the screen, magnetizing the shadow mask (inside the picture tube) and causing a rainbow effect. This is less likely if the rainbow effect is a nice even circular shape. Generally if it's been magnetized by a magnet as described the discolored areas will appear blotchy.

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Purity problem?? Try manual de-gaussing.....T

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