Samsung forum

General discussion

Samsung PN50B400 Horizontal Black Lines

by shogunreaper / March 10, 2015 2:41 PM 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?

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Remember, not user serviceable.
by R. Proffitt Forum moderator / March 11, 2015 12:32 AM 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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by shogunreaper / March 11, 2015 10:02 AM PDT

wha? I'm not a tech.

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(NT) Then you call it in, ask for estimates.
by R. Proffitt Forum moderator / March 11, 2015 10:05 AM PDT
In reply to: ..
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by shogunreaper / March 11, 2015 3:54 PM 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.
by R. Proffitt Forum moderator / March 11, 2015 3:58 PM PDT
In reply to: ..

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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by shogunreaper / March 12, 2015 1:14 PM PDT

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

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I wish you were right.
by R. Proffitt Forum moderator / March 12, 2015 3:11 PM PDT
In reply to: ..

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?

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