Question about LG Televison & Video
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Posted on Jan 02, 2017
The plastic housing that holds all the optics etc producing the image warps due to the high heat from aging lamps and causes these kinds of distortions. It is a major repair involving the whole light module so hopefully you are under warranty.
Posted on Jan 01, 2008
those are going to be dust spots on the LCD panels internal to the optical engine. i suggest that you take the screen off and take off the panel i nthe middle of the tv with 2 screws in it and there will be an area that has 3 metal fins covering thin orange ribbon cables. the 3 square objects at the end of those ribbon cables will be the LCD panels spray wiht air compressor unitl clean and that should greatly help your problem.
Posted on Feb 20, 2008
bonsoir!ce que vous avez ici c'est un probleme de light engine ;c'est surement un le filtre bleu qui est brule et cette tache va remplir tout l'ecran apres,il faut contacter lg et manifester parceque le light engine coute tres cher 900 us
Posted on Oct 18, 2008
its the polarized filter in the optical engine which arnt being sold as a spare part anymore so if it is not under warranty it will need a new optical engine which range from $550au to $1100 depending on the tv
Posted on Sep 22, 2009
Projection TV sets need to have all three colors - RED - BLUE - GREEN - lined up correctly on the screen in order for the video to look normal. When its out of alignment the video will look 3D, wavy, distorted, etc. Most of the time you just need to adjust your convergence in the TV menu. If you cannot adjust it in the menu - then your convergence is broken and needs to be repaired.
This is a very common failure on these projection sets and a fairly simple DIY fix. All projeciton sets including Samsung, RCA, Sony, Philip Magnavox, Panasonic, Pioneer, Akai, GE, JVC, Toshiba, and others at some point will have the same problem.
Common Symptoms include....
Here is a quick test....
Using your original remote go-to the settings menu then goto the convergence section.
Try to adjust the red and then the blue convergence.
You should be able to move RED and BLUE in all directions - up, down, left, and right. And you should be able to get the grid straight.
If you can't move them in all directions or cant move them far enough your convergence chips are bad and should be replaced. This is a common problem.
Note: If you TV has as flash focus or magic focus button only try pressing the button. If it fails to fix the convergence your need to fix it. See below for a fix
You will need to replace the convergence chips and possibly some convergence resistors and pico fuses.
This is a a fairly easy DIY job if you are handy and can follow directions. You can get complete repair kits from TvRepairKits.com or click here. They have put together DIY repair kits that include the OEM parts and step by step photo instructions for each repair. If you are not handy or can't follow directions we would suggest calling a shop.
Posted on Jun 06, 2010
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