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General discussion

Samsung PN50B400 Horizontal Black Lines

Mar 10, 2015 2:41PM PDT

I have an older samsung plama (about 5 years old) and its been developing these black lines near the top of the screen over the past few months now

First one is 2 pixels thick, and just a few hours ago there's another one about an inch below it thats only 1 pixels thick

Is there a way to fix this?

Discussion is locked

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Remember, not user serviceable.
Mar 11, 2015 12:32AM PDT

You can find YouTubes showing such on many makes and models. But it doesn't mean it's what they found there. You as a TV tech would use your service manual and prior repairs as your guide to what to replace. If it's the panel you use your best effort not to upset the owner.
Bob

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Mar 11, 2015 10:02AM PDT

wha? I'm not a tech.

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(NT) Then you call it in, ask for estimates.
Mar 11, 2015 10:05AM PDT
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Mar 11, 2015 3:54PM PDT

i'm asking here to see if anyone has similar experience and has gotten it fixed.

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My TV tech friends have.
Mar 11, 2015 3:58PM PDT

But here's the rub. What fixed it one time doesn't the next. And it's not considered user serviceable for the issues they shared with me.
Bob

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Mar 12, 2015 1:14PM PDT

This doesn't seem like a problem that would have multiple causes to it.

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I wish you were right.
Mar 12, 2015 3:11PM PDT

There's a driver board, cables and panels. Sometimes it's more than one of those and you can find some posts about cable bond failures. So that's 4?