Samsung SPN4235 42 in. Plasma HDTV Logo
sam west Posted on Oct 03, 2012
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Hi have a samsung 42 inch plasma, all of a sudden it has a band 20cm wide of dotted lines going across the whole screen, some channels or when playstation in use the band gets wider, does not seem to matter if its tv ,dvd, playstation same issue.. any ideas would be appreciated .

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  • Expert 163 Answers
  • Posted on Oct 03, 2012
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Joined: Oct 26, 2007
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If the band is horizontal your tv has bad y-buffer board. Usually there are 2 buffer boards- top and bottom. if the problem is in the top half of the screen replace the top board, otherwise replace bottom board.
but better to replace both a the same time.

if the tv has a vertical lines from top to bottom it may have bad plasma panel and can be considered as not economical to repair.

5 Related Answers

Bob Giebel

  • 1 Answer
  • Posted on Dec 28, 2006

SOURCE: Red Dots on My Plasma.

Did you get this problem resoslved? I had the same issue a few months ago. I tech came by and took my TV to the shop, a few days later he said it was fixed as they needed to make some adjustments.....The TV has been fine up until a week or so ago and now the red dots have appeared again. Was wondering what happened to yours.

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Anonymous

  • 934 Answers
  • Posted on Jun 08, 2007

SOURCE: samsung 42" plasma hdtv

Black bars to pink dots are all symptoms of the logic board failing. Samsung p/n# BN96-02042A and this isn't a repair for the novice. The board itself contains many small smd caps that are the likely culprits. But the fine wire traces on this board make replacing the caps nearly impossible without some very sophisticated smd removal equipment and a magnifier that could double as a hubble telescope. Most shops merely replace the board. They're about $180 plus shipping and core charges. If you want to price it goto vance baldwin's site https://www.vancebaldwin.com and enter as a guest. Select parts and enter the part number above. It's about 1-2 hour install and re-assemble barring any complications. Find a reputable shop and take the unit in yourself. That will help keep the cost down, but expect that this one will cost in the neighborhood of $375 - $450 and could run higher if anything else is found wrong. If you need some help finding a good shop try NESDA, National Electronic Service Dealer's Assn., for a member shop near you. http://www.nesda.com/locator/state_search.php Good Luck Bill

Anonymous

  • 179 Answers
  • Posted on Dec 01, 2007

SOURCE: samsumg plasma tv 42

it sounds like the panel is bad..if it is less then a year old you should contact samsung

roety

Eric Rotmil

  • 587 Answers
  • Posted on Aug 19, 2009

SOURCE: 42 inch samsung plasma tv black vertical lines

Hi, Depeending on the thickness of the lines matters. If the lines are Black and about 1-2 inches thick it may be a bad bottom buffer board or a bad panel (screen).
If the lines are thin 1/16 to 1/8 inch it is most likely a bad panel.
You can open up the set and depending on the model, see the thin board/boards running across the bottom with ribbon cables going to the panel. You may be able to attempt reseating the ribbon cables, but be careful as some retainer plugs break very easy.
If the lines are thick black and the reseating doesn't correct it you may be able to buy the coresponding buffer. Unfortunately some bottom buffers are actually part of the panel. If you are not comfortable taking it apart then call a professional but be aware labor charges start around $200 not counting parts, panels start at $600 up to over $1000
hope this helps
Thanks
Eric

I’m happy to help further over the phone at https://www.6ya.com/expert/eric_ab7c09ec01841771

Anonymous

  • 5 Answers
  • Posted on Dec 22, 2009

SOURCE: Samsung Plasma TV has horizontal lines of colored dots

I have the same problem, currently searching for a solution. Have you resolved your problem yet? Looking to repair myself, any tips or ideas that you have/expirenced would be greatly appreciated. Thanks, Todd

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