Question about Samsung HL-S5679W 56" HDTV

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I get green shadows on my screen which part do I need to replace?

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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
  • Colors don't line up
  • One or more colors can't be adjusted when using the convergence menu.
  • Screen is bowed or warped.
  • TV shuts off after powering on. Power light will blink. TV may also make a chirping noise.
Here are some pics of convergence problems.


I get green shadows on my screen which part do I - 7859b01.jpg


69189a5.pngSOLUTION #1

For more more examples and find a fix using this link on Fixya http://www.fixya.com/support/r2861467-solution_video_looking_whiteish_dull

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.

578ba6c.jpgTV set after fluid change

65af323.jpg

69189a5.pngSOLUTION

You can see some more examples and find a fix using this link on Fixya http://www.fixya.com/support/r2861467-solution_video_looking_whiteish_dull

Please do us a favor and rate this solution after reading

Posted on May 22, 2011

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After having our tv in storage for aver a year, now it has a green shadow to it. What could be wrong/


Not sure I understand what you mean by green shadow. I would check the fluid in the green and blue CRTS and verify they are clear. I would do this if the green color seemed fuzzy or blotchy looking on the screen.

When looking on a blank screen, do you see any arc lines of either green, blue or red? If so, you would need to lower the screen voltage for that particular CRT.

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convergence solder connections likely going bad. you may be able to resolder or just replace the chips.
check my tutorial and let me know if you need more help.
http://www.fixya.com/support/r5001731-convergence_diagnosing_convergence

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the lense red blue green is warped you will need to replace those lenses

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needs a convergence board repair, not too hard to fix if you are handy with a soldering iron.

get the 2 convergence chips for this model @ partsstore.com

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Shadowing with the greens and reds


I had this problem with my rear projection screen tv. It was the gel going out in the projection lights. You will need to get it replaced.

Dec 20, 2008 | Hitachi Televison & Video

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Good Day;
Suspect Convergence IC's STK4274, part Number 2003191. Replace all three IK04(red), IK05(green), IK06(blue).
Good Luck, big IRISH.

Aug 30, 2008 | Hitachi 50UX26B/27K 50" Rear Projection...

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I understand that the problem does not go away with the replacement light engine. Avoid Hitachi and just spend more bucks and get a Sony or Panasonic.

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the convergence ic's are breaking down and require replacement should cost under $ 250 depending on your service shop.

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Convergence IC's should be replaced before any alignment is
attempted ....part # STK392-560....You need two......mount
to large heatsink...............T.

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1 Answer

Jvc av56pw74 blue shadow


You are going to need a full convergance alignment to rectify this issue.

Aug 09, 2007 | JVC AV-27720 27" TV

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