LG RU-52SZ51D 52" Rear Projection HDTV-Ready Television Logo
Posted on Jul 12, 2009
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Red and blue ghosting,

Hi, our rear projection TV has been great for 6 years. Now it is blury (red & blue ghosting). After convergence there is no difference in quality. I have also noticed that the red crosshairs won't move vertically, only horizontally. when a word appears on the TV, the word appears horizontal (normal) but then a ghosted 'red' word goes above the horizontal word at an angle. general viewing images have red and blue ghosting, a straight line appears curved. Model number PT-53A83T serial number 208KT00117

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  • LG Master 3,459 Answers
  • Posted on Apr 18, 2010
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The most likely cause is shorted convergence chips and possibly a few pico fuses.

These sets need to have all three colors - RED - BLUE - GREEN - lined up correctly on the screen in order for the picture to look normal. This is called convergence.

When its out of alignment the video will look 3-D, wavy, distorted, etc. Most of the time you just need to adjust your convergence in the menu. If you cannot adjust it in the menu - then your convergence is broken and needs to be repaired. Convergence problems are very common on all Projection TV sets including Sony,Samsung,JVC,Philip Magnavox,Panasonic,Akai,PioneerRed and blue ghosting, - 2_bing.gif Hitachi,Mitsubishi,Zenith and others.
You can get a convergenece repair kit with instructions from the links below.

Here are some of the most common problems with these sets...

Problem #1) Convergence

Yours may have one or more of the following symptoms...

*Screen Looks 3-D
*Colors wont align
*Screen may look distorted or warped
*No Audio/Video - TV Shuts down - May also make a constant chirping sound

Problem #2
Another common problem is dull or washed out video.

Your set may have one or more of the following symptoms....

*Dull looking picture
*White looking picture
*Halos around objects
*Red/Orange looking picture

You can see some more examples and find a fix herebb0cf99.png http://www.fixya.com/support/r2861467-solution_video_looking_whiteish_dull

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Good Day,

This is a common problem with this TV, but there is an upgrade to correct the CONVERVGENCE circuit problem.
If you want to repair this concern yourself: Contact: B&D ENTERPRISES,
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If you want some else to do the repair for you call an Authorized Service Center.
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http://www.digitalhome.ca/forum/showpost.php?p=564268&postcount=220
http://cmpalmer.blogspot.com/2006/11/fixing-my-own-tv-part-ii.html

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This is a common problem. Your convergence has gone out.

Common symptoms are...

1) 3D Video
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Go here for a solution...

http://www.fixya.com/support/r2861627-updated_convergence_problems_amp
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Odds are real good that the cooling fluid in the green and blue picture tube assemblies has become contaminated. You can tell by looking down into the lenses with a flash light. Funny thing is the red never gets contaminated because whatever organism is causing the problem can't survive in red light. BTW this may still not solve all of your convergence problems but when the colors are so badly diffused the convergence sensors for flash focus can't lock onto the beam landing.
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Convergence problem, blue ghosts

Projection TV sets have several common problems listed below.

Problem #1) Convergence

Symptoms:

  • Screen Looks 3-D
  • Colors wont align
  • Screen may look distorted
  • No Audio/Video - makes a chirping sound.
Example Photo:
5f6e85c.jpg
Problem #2 CRT Fluid has clouded over.

Symptoms


  • Dull Video, Washed out
  • White/Bright looking video
  • Halos around objects
  • Red/Orange looking
Example Photo:
ee1ca68.jpg

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

bb0cf99.pnghttp://www.fixya.com/support/r2861467-solution_video_looking_whiteish_dull
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replace vertical IC and shadows/ghosting the problem is either electrolytic capcitor or video IC or convergence adjustment
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convergence amp ic going bad.
http://cmpalmer.blogspot.com/2006/11/fixing-my-own-tv-part-ii.html
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Sounds like your convergence amps need to be replaced (STKs). I am not sure what the rates are in your area, but typically you're looking at around $200 or so.
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