Question about Hitachi 53UWX10B 53" Rear Projection Television

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I just turned on my tv and there are shadows around everything on the screen. Purple ones on the left of the object and green on the right. I was just watching it last night and now it's doing this. Please give me an answer to what is wrong. Thank you

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  • Hitachi Master
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Very common problems with the DLP projection tvs.The tv have a problems known as a convergence problems,it dead.Tv colors lines R,G,B mis alignments,have colors pictures shadows or 3D pictures.The tv convergence board the 2 STK convergence ICS and some or all it resistors are dead.These parts on the tv convergence board,must be replaced to solved the tv picture convergence problems.The shop,will cost u $300-350 for parts and labors.

Posted on Oct 12, 2010

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1 Answer

Remove purple haze around edges


The set needs to be focussed and reconverged. The red and blue images combined make a magenta/purple image. Adding green makes it white. Depending on the type of TV, if it's a CRT projection TV then there's an electronic focus control for each of the three tubes as well as the mechanical adjustment of the optical lenses. Given the description, then I'd have a look at the electronic focus first. A sudden shift in focus suggests that something in that circuit has given out. This would cause the red and blue images to go soft enough to create a halo around objects on screen.

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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. 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, Pioneer, Hitachi, Zenith, and others. You can get a convergenece repair kit wiith instructions from the links below.

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Yours may have one or more of the following symptoms
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bb0cf99.pnghttp://www.fixya.com/support/r2861467-solution_video_looking_whiteish_dull

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1 Answer

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1 Answer

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check the 3.3ohm resistors right next to the convergence ICs. Also the ICs for 3.49 are most likely cheap chinese ICs and not origional sanyo ICs . I have seen the cheap ICs go out as soon as you power up the set the first time.If you need more assistance please let me know.

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1 Answer

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