Question about Samsung HP-R4272 42 in. Plasma HDTV

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Crazy (red) disturbances in image

Hi- I have had a Samsung HP-R4272 42" plasma for about 3 years now, so it's way out of warranty. A few months ago, it bagan to flicker for the first few minutes it was on, and here and there there would be a few pixels that would misbehave (light up bright with one color), but again, only for a few minutes, and never in the same spots.
Two days ago it started to show a really bad image, with these bands here and there under the whole image, and this mess of red distortion all over the screen. I have seen what i thought were other colors in the distortion, but really it almost all red - like spray or bleed. Changing inputs doesn't seem to make a diff. I can see disturbance through the black when there is no feed. I generally use the RBG component, but the vid input on the side gives the same effect. I am attaching a pic or two I tried to take. I am hoping this is some video board of some sort that failed. Anyone have any ideas or pointers? I would be eternally grateful.

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  • innate Mar 11, 2008

    Sorry - don't know what an IC is. Can i replace it myself if i contact samsung for the part? I have no problem opening and repairing computers and electronics, sans solder.

  • innate Mar 11, 2008

    Excellent - thanks much.



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I have a very similar problem. My HP-4272 is about 3.5 years old. Started off with the bottom half going black for a couple of seconds. Then the top would flicker. Now I get the following picture... Not sure if I need to replace boards (Y-buffer lower, upper, and/or Y Main Board)? or if something just needs to be "adjusted"...

Crazy (red) disturbances in image - cb96c75.jpg

Posted on Mar 24, 2009

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Ysus board need to be adjust. There is a pot ( adjustable resister) on the ysus board that needs adjusting.

Posted on Jan 26, 2009

  • bimbajan Jan 26, 2009

    ysus board need to be adjust. There is a pot ( adjustable resister) on the ysus board that needs adjusting.


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Pals, I have almost the same problem but mine is in the middle of the screen and is thinner than that. Whats the cause of it??? can it be repair and isnt too expensive??(mine is a samsung PL-42P5H, 2 years with ps3 hooked)

Posted on Jan 15, 2009

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The red convergence IC is signing off.. You will need to get it replaced!

Posted on Mar 11, 2008

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  • eagle338
    eagle338 Mar 11, 2008

    No its not user servicable.. i would advice that you take the assistance of a tech.. the IC costs around 15$ even including labor it shouldn't run you more than 50-75$. Hence i strongly advice to give a call to samsung... dont risk damaging your set..!


  • Dec 19, 2010

    First of all, there is no such a thing as "red convergence IC" in plasma TVs. I'd be curious where did you come up with that stuff from.

    Second, the problem is very common and very clearly buffer boards problem. No adustments will help it, only replacement of the buffers and it better be done before they short.

    Third, it is correct this is not serviceable at component level (it is too expensive), but the prices quoted are, unfortunately, not realisitc...if only because of the first reason I mentioned. If that was a DLP TV then yes, they would make sense.

    For more details see

  • eagle338
    eagle338 Dec 20, 2010

    That was posted a long time ago and I di not see the model number before posting.. I realized my mistake but there is no way to remove posts here. You do not find mistakes like these in my later posts. I appreciate you taking time to point fingers at someone else!


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