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Sony Bravia KDL-52XBR4 has developed thin vertical green lines evenly spaced apart about 3/4 of an inch across the whole screen on all inputs except pc. where I don't notice them.

Posted by Thomas Bleichert on

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5 Related Answers

Anonymous

  • 137 Answers

SOURCE: thin vertical red line

This maybe the symptom of a bad Panel. One Vertically This line is 99% bad panel. Call your warranty provider or SONY tech support if purchased under 2 years.

Best regards
CircuitCity

Posted on Dec 06, 2007

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John Laur

  • 2 Answers

SOURCE: even spaced vertical lines across the whole screen on all sources

If you are handy with SMT rework it might be possible to fix this problem. The heat spreaders on the LCD drivers are insufficient to cool the chips and they will get hot enough to reflow the solder and cause a short on some of the pins. I think it most often happens after bulb replacement since bulbs near their end of life are dimmed and run cooler. After replacing the bulb the bit of extra heat is all that is needed to push them over the edge.

The problem also seems to be most prevalent on the green IC since it shares a heatsink with red and has a smaller area to dissapate the heat into.

If you pull the heatsink you will probably be able to see the short with careful inspection. The pitch is very small - 0.6mm but I was able to wick, clean, and reflow one side of my green IC and the problem went away.

I am planning on adding some additional aluminum stock to the heat spreaders with some thermal adhesive to give the chips more cooling.

By the way the very common rattle noise in these projectors is not a fan but the auto iris. You can unplug the iris servo from the mainboard and disable the auto iris in the menu to work around the problem or you can replace the iris servo for about $75, again, if you are handy with that sort of thing.

Posted on Dec 30, 2008

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roety

Eric Rotmil

  • 587 Answers

SOURCE: thin vertical line runs across the top of screen

Hi my name is Roety,
I can help you with your issue ,
 Try the format, aspect buttons on the Box remote, if the line is there on every input and effect the TV menu your panel (screen) is bad.
A new panel would cost as much as a new TV.
 
 
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

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

Posted on Oct 24, 2009

blueextc3221

blueextc3221

  • 15935 Answers

SOURCE: I have a Flat screen

Are the lines all the way across the screen? or just a few? Solid black - or trannslucent?

Like this??

5af01cc.jpg
Horizontal drive has either data, voltage, or control problem from the pixel registry circuit......get it serviced before the problem spreads causing further damage.

However, in all likelyhood, the panel itself is bad. The Bravia line has had a bad rap about the faulty displays, and at $1800 replacement (plus labor) - it may be time to call SONY direct to complain!

Thanks!!
nc

Posted on Apr 02, 2010

Anonymous

  • 1 Answer

SOURCE: Sony kdl-v40xbr1 has horizontal lines

I'm having the same problem. I have noticed on mine that the menu when brought up is clear and I can see it perfectly. The picture on all the inputs is just as described above though. BUT, like I said I can see the menu just fine. This leads me to believe that it's not the panel. Anyone have a solution to this, or at least know what could be causing it?

Posted on Sep 24, 2010

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I can help you with your issue ,
 Try the format, aspect buttons on the Box remote, if the line is there on every input and effect the TV menu your panel (screen) is bad.
A new panel would cost as much as a new TV.
 
 
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

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

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