Question about Sony Grand WEGA KDF-42WE655 42" Rear Projection HDTV

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On screen yellow tint

On screen tint runs from top to bottom of screen in the center of screen.
Faint yellowish color. help.....Thanks, Dennis

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  • 4 more comments 
  • Anonymous Jul 31, 2008

    Yellowish screen .

  • rzh14 Aug 13, 2008

    I have the same problem! but it'snow taken over my entire screen with the eception of 2 or 3 small spots

  • Anonymous Sep 14, 2008

    Yellow tint co ers most of screen. Is it optical block?

  • Anonymous Sep 29, 2008

    me too, but mine is a greenish tint

  • tiny12be Sep 30, 2008

    Mine is green too????

  • Zebop Feb 28, 2009

    Same problem.... but mine is BLUE!

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  • 195 Answers

Yes, is the optics unit block, the blue lens have a cloud in the lens

Posted on Feb 26, 2010

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My tv screen when on turns yellow then after a while it will switch back to normal colors what can be wrong with it....


Televisions covered: all Projection with yellow picture, but not Projection TVs with a yellowish tint surrounding objects in a nearly normal picture.

Yellow = red + green
normal picture = red + blue + green (RGB). See illustration.

12_27_2011_5_00_56_am.png

Fig. 1 Additive color mixing in an RGB monitor, or RGB Projection TV.

The circuitry powering your blue output, or the blue light engine itself is starting to fail.

Operating Theory:

The lamp module shines a bright light into the optical unit; there are a series of lens and baffles, and at the top of the light engine, a lens puts the picture into a mirror which is reflected onto the screen; All video and color is processed thru the light engine. Blue most commonly fails first, leaving a yellow picture.

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1 Answer

Yellowish tint on my rear projection


IF you turn the color off and go to a black and white channel, a yellow screen indicates something and just confirm this so I am able to help.

SD TECH

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1 Answer

Can't fix the color - really blue or really yellow.


Probably Blue CRT shot. Put tint back to center and turn color level to 0. Should look good black and white pic. If blue CRT shot, will look yellowish; usually more yellow around perimeter.

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1 Answer

Slight yellow tint to the color.


replace the coolant in the picture tubes that will restore the color and the clarity. Heres a link to the kit which has the coolant and step by step instructions.
http://servicemanuals.vstore.ca/product_info.php/pName/phillips-crt-coolant-replacement-kit/cName/repair-kits

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2 Answers

I have a panasonic rear projection lcd, it has a yellow tint around center of screen. Help


My PT-43LC14 has a yellow tint on 3/4 of the bottom to top. the top 1/4 seems normal. I removed the bulb assembly and it looks OK. Any ideas. Is there anything I can doe myself. and if so what is the p/n I can buy?

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1 Answer

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1 Answer

Picture Color



http://www.partstore.com/ModelDetai...close=1&exact=1

What do you think "CRT ASSY, Projection: Blue" might be?

CRT ASSY, PROJECTION: BLUE
RCA Part Number: 258486
RCA Model: D52W20
52" CRT BLUE P16LTG00BMB, DELTA 250

They want $183,

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1 Answer

Yellowish color


turn off the color and see if you have a good grey picture if not your grey scale is off and requires adjustment

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