Question about Sony XL-2100U Projector Lamp for KF-42WE610, KF-50WE610, KF-60WE610, KDF-60XBR950, KDF-70XBR95

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Sudden picture problems - color distortion and "negative" picture appearance

I've owned my Sony KF-42WE610 for about 3 years now and all of a sudden when I came home and turned on the TV something was wrong with the picture. Certain colors do not appear to be showing up and the picture generally has a pink tone to it. Overall the picture is very snowy and the best way I can descibe the picture is that it has some sort of a "negative" effect. I'm wondering if this is a bulb problem given that I've had the TV for 3 years now, but I want to be sure before going out and buying a new bulb. Thanks, Chad I had a problem with my Sony LCD projection KF50WE610 screen developing blue spotched. I replaced the buld and it did not fix the problem. How do remove the blue spots that appear?

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Hi,
Symptom shows problem with Light Engine circuit and most probably 3 LCD drive section in light engine.
Does TV give any error blinks on standby light?

Posted on Dec 17, 2008

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  • Sony Master
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This looks more like a convergence problem, if you have light the lamp is ok.

Try first unplugging the TV set power cord (and all other cables) for ten or twnty minutes, to reset the unit.

Posted on Dec 17, 2008

  • Ginko
    Ginko Dec 17, 2008

    Hi Chad, I was answering to the first problem on my first comment, in your case:

    "Chad
    I had a problem with my Sony LCD projection KF50WE610 screen
    developing blue spotched. I replaced the buld and it did not fix the
    problem. How do remove the blue spots that appear?"

    As I already stated, if you have raster the lamp is ok, as you can see it is generating light.

    If the blue spots are static, like ink stains that is definitively a faulty LCD.

    If the blue spots are on only when you have sygnal, and moving, it can be a faulty LCD, or a problem with several video ICs on the motherboard, this job requires thorought testing the unit, and some test (the ones on D board ICs) must be done with live power and require an adequate knowledge.
    This job must eb done by a technician or by an experienced electronic repairer.


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Posted on Jan 02, 2017

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