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Foggy HD projection TV

Do you know how to take some foggyness away from a HD projection TV

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Re: Foggy HD projection TV

I think your refering to the CRT colant needing to be changed if it has a halo effect on the blue and green colors Also some times your picture can get dingy because the mirror gets dull. Try cleaning the mirror and tube lenses. Use a damp soft cloth on the mirror and lenses not windex.

Posted on Jan 22, 2008

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Dear technician, My TV has gradually built up a layer of yellowish with some gray cloudy patches (foggy like) across the screen. Can you tell what seems to be the problem? I had this TV for 4 years and...

If your TV looks 3D, warped, or distorted it likely has a convergenge problem. If however it just looks dull, washed out, redish, or if it looks like objects on the screen have halos the fluid in the lens has soured. You can search google for parts or you can get the parts with repair instructions from sites such as

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Foggy picture quality, white too bright

This indicates an Automatic Gain Control (AGC) problem often caused by a dried up capacitor. You will probably need a schematic to go much further. This could be a problem in the tuner, IF, or video amplifiers.

The following assumes you are sure the signal source is strong - try a VCR or other local one (channel 3/4, not the RCA jacks).

(From: Glenn Watkins ( Substitute a variable voltage source for the tuner's AGC voltage. Most of the time the range of AGC is from 1 to 7 volts. If you can get a decent snow free picture with an external AGC source, then the tuner is probably OK.

This is will require you to open the back cover of the television alongside an ohmmeter to read components on the printed circuit board of the television..
Take care

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Do I need to ever clean the bulbs and mirror?

Only if your picture looks hazy or foggy and not clear.
If you do not know what you are doing or haven't done it before call your local tv repair shop.

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I have a Sony KP-53VP0 Rear Projection TV Kinda Cloudy Picture.

take off the back of the tv and clean the lenses and the foggy picture will go away

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Ur convergence is cold solders or dying,U know how to solders?Tries websites.Tv repair, for the convergence kit.

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That model is famous for having bacterial contamination in the CRT coolant causeing halos, and dim pictures with bad overall color issues. You can look into the lens of the CRTs when the set is laying and if the coolant looks cloudy or has any growth there you will notice it right away, and changing the coolant will restore color, clarity and brightness.

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The tv has a bad lite engine. Please call the manufacture's customer service and asked them for a concession for this repair. This a $700.00 to $900.00 repair. If you persist 95% of the time they will cover this repair for you. Use the word 'concession' that's there verbiage.Good luck.

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We also have vertical lines with our JVC 62"... turning it off and letting it cool down is the only solution. For us, we know it's a problem with heat. We simply are wits end on fixing it. added two additional fans, a exterior fan to blow heat away from the back of the tv, pulled everything else away, etc.... Anyway, goodluck.

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