Question about Samsung HCN473W 47" Rear Projection Television

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Bright shadows While watching TV all figures and wording have a bright shadow up and to the left. Any ideas?

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Is this a convergence problem? Did you try adjusting the convergence? IF the bright shaddow is also colored, that might be it. See this discussion:

http://www.fixya.com/support/t543966-curved_red_lies_top_bottom_some_double

Posted on May 13, 2008

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1 Answer

How can i fix shadows on my tv ?


the shop should have told you of any problems after they did the repair; I'd ask them why they didn't.

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White shadows


Usually it is normal but if contrast set way too high that can also cause it.

set bright at about 70% and contrast a bit lower.,

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Blue and Yellow shadows on people and words


Open the front panel, till you see three knobs, adjust those knobs till you get the right picture again.

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Convergence is the problem. You can get instructions and parts frow www.TvRepairKits.com

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Shadowing words and figures


Your TV most likely has one of two possible problems.

Problem #1 - Failure in the convergence circuits. ( common problem )

Here are some of the most common symptoms and example photos of a convergence problem


  • Screen looks 3D
  • Colors don't line up
  • One or more colors can't be adjusted when using the convergence menu.
  • Screen is bowed or warped.
Here are some photos of convergence problems.

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Here is a quick test....

Using your original remote go-to the tv settings then goto the convergence section.

Try to adjust the red and then the blue convergence.

You should be able to move them up, down, left, and right.

If you can't move them in all directions your convergence chips are bad and should be replaced. This is a common problem.

0667c5f.pngSOLUTION

You will need to replace the convergence chips and possibly some convergence resistors and pico fuses. Its a fairly easy DIY job or you can call in a pro. If you want to do the repair yourself check the site www.TvRepairKits.com. Their kits include a photo instruction guide, original OEM Sanyo STK chips, convergence resistors, pico fuses, thermal paste, email/phone support, etc.

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. Notice how dull the colors are and how white the screen looks. The screen may also look red, orange, dull, etc.

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TV set after fluid change. Notice how bright the colors are now. Everthing looks crisp and sharp again.

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2c07611.pngSolution #2


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

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1 Answer

Blue shadows appear to be behind white objects


TV shows large red spot in middle of tv when dark show are on, you can see it more.  Now blue spots on upper right side too.  Spend way to much on this tv to have these kinds of problems only after 3 yrs.

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1 Answer

Mitsubishi WD-52631 shadows and blurs in dark lit movies


Good Day;
You may have a lamp going bad,when was the last time you replaced it? Or the DMD or light engine, try lamp first. Good Luck, big IRISH.

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1 Answer

Green shadows all over the screen


You didn't say how old the set was and how much it's used, but the shadows you're describing sound like a bad green picture tube.

Hope that helps...

Geno

Apr 25, 2008 | Hitachi 53UWX10B 53" Rear Projection...

1 Answer

Yellow shadow


Convergence amp ic bad
http://home.earthlink.net/~oleg.filippov/ConvergenceFix.htm
http://cmpalmer.blogspot.com/2006/11/fixing-my-own-tv-part-ii.html
http://www.hdtvoice.com/voice/showthread.php?t=28929
Or send to ptscorp.com
http://www.hdtvoice.com/voice/index.php?s=

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