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Bright blue pixels on left side of plasma screen

Hi there, about 6 months ago i bought a samsung 42" plasma and i've just started noticing this problem. After the tv has been on for a while, maybe an hour or 2, these groups of very bright blue pixels start showing up and spiking from the left side of the screen. It seems to happen when the screen shot changes, then blue pixels fade til the shot changes again. Its most noticable on solid single colours, eg. when your flicking through the source input (HDMI, AV1etc..), the tv displays what input you're on in a block at the top left of the screen, so every time you change source the pixels 'spike' out from the left and then slowley fade. Sorry for the vagueness buts its quite hard to describe......... Any ideas?
The model is PS-42Q7H (R)
Thanks

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  • Cdub7 Jan 01, 2008

    Hi zjut, thanks for the tip, but i have no idea how to adjust the Vs or Vsc, i dont even know where to do it......... do they have anything to do with using a PC with the PDP? because ive never connected my PC to it before, i usually notice the blue pixels when watching TV....

  • jrcarr Feb 04, 2008

    Yea, I have the same problem bright blue pixels on left side of the screen and sometimes goes to the center, talking about some B.S. still looking for a resolution to problem.

  • mrdouble08 Mar 17, 2008

    I'm having the same issue. What is the Vs & Vsc?? My TV is still
    under warranty - Is it something I can tweak without taking off the
    cover

    Chewy

  • mrdouble08 Mar 17, 2008

    If it helps I have a Media Centre (custom built) with Foxtel (Cable) and large speakers.. the large speakers are 40-50cms away from the tv on each side (the problem onyl occurs on the left).

  • Chuck1972 May 12, 2008

    I have a Samsung 720p 42" with an HDMI connection. I had the TV for about 1.5 years and just noticed this same problem. After the TV is on for more than an hour, a blue blue appears on the left side of the TV. I don't have a warranty on it, so I am sure it will cost some $$ to have a repairman come out. I will mention your suggestion for adujsting the voltage.

  • miotico Aug 25, 2008

    Yes, I have a 40" magnavox plasma. I noticed the same blue pixels. They come and go, and sometimes they end up somewhere in the center. It does seem to be related to what is on the display because it comes back to the same scene and goes away with other tv shots.

  • miotico Apr 16, 2009

    Same problem here.My Magnavox 40" plasma displays blue pixels on my left screen also.They appear on HD channels at first, but even when I am watching blue-ray movies. I called my warranty service and they changed the logic board on the tv. Guess what? It didn't help. I still have the same problem. Another technician is coming out to see it today. I'll post anything if there is a clear solution.

  • Anonymous May 12, 2009

    my samsung tv keeps getting sparodic blue pixels on screen it is a 37" lcd can anyone help

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Try to adjust Vs & Vsc within 5% of their spec on the power supply board when you notice the problem.

Posted on Jan 01, 2008

  • LX Jiang
    LX Jiang Jan 01, 2008

    You need to open the back cover of your tv. There is no way you can do it with your PC. You can easily find the Vs & Vsc(or Vscan) locations printed on power supply boards. Also look at the Vs & Vsc specifications printed on the back of PDP panel. Try to get some help from persons who have some knowledge of plasma tv.

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I have had the same problems with blue pixelation on the left hand side of the screen after 1.5 years of owning the TV. However I took out the extended warranty and had it repaired just yesterday. It was a firmware update that needs to be done on the TV to allow more voltage through the board, and it seems to have worked. Had the TV on all day yesterday and no sign of blue pixelation.
Im sorry to say I cant tell you what firmware version it was upgraded to. Hope this points you in the right direction for the fix though

Posted on Jul 08, 2008

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The hole screen has gone blue its a plasma panasonic viera its 6 yrs old there is sound still please help thank you .

Posted on Jul 01, 2010

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U need to by a something board for the tv of ebay or amazon can be purchased for 30 to 40 pound i have the same problem if the rrom is kept cool it dusnt come up

Posted on Oct 26, 2009

I got the same problem. and out of warranty. samsung simply screwed us over. the technicians say they would have to change the plasma screen for the neighbourhood of $1000 bucks. no thanks I could buy the damn tv brand new for the price

Posted on Jul 08, 2008

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I'm having the same issue. What is the Vs & Vsc?? My TV is still under warranty - Is it something I can tweak without taking off the cover

Chewy

Posted on Mar 17, 2008

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