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HDTV19647 how do I fix the colors? Top half of screen turns dark black- green greenblack hair? looks more like a combat report Peggy Epps peggy402@knology.net

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The television you are refering to has a problem with burned dot matrix lenses. only way to repair this is to replace the video engine assy. very expensive .

Posted on Jul 07, 2008

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The screen is all messed up! It has green and


This is a common problem. Its called a convergence failure.

Problem #1) Convergence

Symptoms:

  • Screen Looks 3D
  • Colors wont align
  • Screen may look distorted

You can see some examples and find a fix here...

http://www.fixya.com/support/r2861467-solution_video_looking_whiteish_dull

Jan 31, 2010 | Sony KP-51WS510 51" Rear Projection...

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There is a green tint to my screen. Seems to be more evident in dark shows and on shadows.


Pull the front speaker grille off and remove the access panel. In the customer menu turn the color off so you have a black and white picture. get a flashlight and adjust the screen controls for the red, green and blue tubes until you get a nice black and white picture. then turn the color back up.

May 26, 2009 | Hitachi 51F59 51" HDTV Projection...

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Picture is very dark and color not too good.


Take the front speaker grille off; it is stiff but will pull off. Take off the access panel underneath; four or five screws. Inside you will find a screen/focus block control assembly. Get a flashlight. Turn up the screen controls SLIGHTLY. for RED, GREEN AND BLUE. The best way to do this is to turn off the color first and make sure you end up with a good black and white pix ( not tinged green, red or blue) then turn the color back up in the menu.

May 11, 2009 | Projection Televisions

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Red , Green And Blue.


Heres the best way to set a phillips screen controls. Go into the picture controls and set picture or contrast to roughly 75%, then set brightness to 50% and then set the color level completely off. Then adjust the screen with the 3 color controls untill you recieve the best black and white picture as possible. If you are unable to achieve a good black and white picture change the coolant in the green and blue tubes. But if you can get a good black and white picture stop there then turn your color level back up and the picture should be correct. Let me know if you need further assistance.

May 22, 2008 | Projection Televisions

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TOSHIBA 65H82


you need to replace your 2-convergence ic's #STK392-110 you need to replace both ,,they are attached to 2 big heat sinks and identified as q-751 & q-752 you can get the ic's you need plus free tec support and installation instructions including pictures at the link I gave you.
http://servicemanuals.vstore.ca/

Apr 12, 2008 | Toshiba 65H82 65" Rear Projection...

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Wierd color problem. JVC AV-65WP55


thats how my stared than got worse i call for service and got fix after 4 moths had the same problem and i called the same guy again at firs he told me that the convergence was bad and replaced them i think there are three pieces but than the second time he took the box inside the tv he checked all the circuits and the board and he found out the something else was getting real hot and was causing that the convergence to bad now he fixed hope i got no more problems

Dec 11, 2007 | JVC AV-65WP55 65" Rear Projection...

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Bad picture


Try to consider the following tips:

Smearing out of one or several colors, best seen in txt-mode, my 27CE4599/30R smeared out in red and green, not in blue, fully exchanging the drivers (input and output complete, otherwise the RGB driver will blank the crt) moved the fault to the other color
Replace the 180K feedback resistors in the amplifiers with normal 1/4W metal film instead of 1/8W, they can become open circuited (in mine both green and red were faulty in this way). Change all 3 and not just the defective ones, replace also all the paralleled 75K resistors per color (fe by 47K+27K) to prevent bright color raster (they can also become open circuit)

Nov 29, 2007 | Toshiba 55H70 55" Rear Projection...

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Magnavox model 6P5440


You can turn up the Screen controls in back of set. Look for the focus block that has 6 controls on it. 3 are for the screen and 3 for the focus, in each color Red, Blue, Green. need to turn evenly to keep color balanced. On set turn color all the way down and then get a good black and white picture.

Sep 14, 2007 | Hitachi 57UWX20B 57" Rear Projection...

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Top half of screen looks like 3D


the prob. described points to convergence amp failure. have qualified tv tech to repair..john

Nov 10, 2006 | Akai PT4298HD Rear Projection Television

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