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Question about Sony PFM-42B1 42 in. HD-Ready Plasma Television

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Sony 42" Plasma

My plasma tv has 1 2" black line that runs down the center of the screen. Does anyone know why this is happening and how i may be able to get if fixed. Thank you.

Posted by Anonymous on

  • patziegler Sep 21, 2008

    I have a Sony 40" LCD with a line down the middle of the screen. It started at the top with a length of about 5". Gradually it has grown to the bottom of the screen. How can I repair this?

  • t_bandith Jan 18, 2009

    if anyone has solution. Please post it. I could use your help. thanks in advance

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  • 217 Answers

This could be caused by a buffer board on the lower part inside the set

Posted on Feb 18, 2007

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If you wish to get some details; visit the site linked here. Pull up older posts.
http://electronicshelponline.blogspot.com/
Line faults & possible causes to LCD & Plasma screen are given with illustrations. You can get an idea about the fault to an extent. Faults to all LCD & Plasma screen are similar, irrespective of its brand and screen size.
Search the site by type in the "BRAND NAME" of your device; (Exclude the model number), in the "Search box at the top right of the display window of the Homepage" to get gathered related posts
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Hi my name is Eric,
I hope I can help you with your issue ,
Bad news is you need a new panel. that is the screen itself.

 
 
If I have helped you with your issue please click accept.
If you have more questions you can still respond until this post expires,
I will reply asap
Thanks
Eric

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

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There are 4 or 5 ribbon cables on the bottom or on one side, they control part of the plasma screen. Check the ribbon cable2_bing.gifnear the black lines. Unplug the ribbon cable and look for black chipson the underside of it, I think they say 100 on them, you need toresolder both ends on each chip. Should fix the black line issue.
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The matrix controler or the matrix drive area is failing. The fix is to change the proper circuit boards, and then do the factory setup to match the board is necessary. In the worse case, it may be the display screen itself that has a failure occuring.

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this tv fail from loose ribon cable plug, but I dont recomend you to work with it, becouse you cand spoil and easy job for the tech, and will cost you more, so get a tech, will be better...good luck
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