Question about Hitachi 53SDX01B 53" Rear Projection Television

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BIG SCREEN TV

COLOR OK BUT PICTURE KEEPS GETTING DARKER

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  • blrne Oct 13, 2008

    My 23SDX01B started doing the same thing. The color is fine but the picture is dark. I noticed that on some shows I could see it getting darker and than lighter. Now it seems to be consistently dark.

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2.5 ohm resister at 2 watts at R43 is bad on the 53sdx01b same boards as my tv , when mine went it was at 12 ohm instead of 2.5

Posted on Jan 23, 2009

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Posted on Jan 02, 2017

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The picture is not clear anymore. It seems as though the picture has gotten gradually darker. We still use the television, it is just not clear enough. When watching nighttime scenes, we cannot see mu


Projection TV sets have two very common problems. One is convergence ( 3D/Warped video) the other is CRT fluid ( Dull Video). Below are more details for both items. Also, complete repair kits with instructions and repair support are avail from site such as www.TvRepairKits.com

Common Problem #1) Convergence has gone out

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 projection 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....

  • Screen looks 3D
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  • One or more colors can't be adjusted when using the convergence menu.
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Here are some pics of convergence problems.


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69189a5.pngSOLUTION #1

What you will need to do is convergence. You can get a repair kit from TvRepairKits.com . It includes replacement parts,step by step instructions, support, etc.

Common Problem #2) CRT Fluid is Cloudy

Projection TV tubes have a liquid coolant that is used to keep them from overheating. After many years the coolant in the blue and green tubes will become cloudy and cause the screen to look dull, red/orange, etc. You may even see halos around images.

Picture of a set that needs the fluid changed.

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TV set after fluid change

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69189a5.pngSOLUTION

What you will need to do is replace the coolant and clean the crt. You can get a repair kit from TvRepairKits.com . It includes replacement coolant,step by step instructions, support, etc.

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