Black Line Samsung Plasma - AVS | Home Theater Discussions And Reviews
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post #1 of 5 Old 01-08-2013, 02:02 PM - Thread Starter
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Model PN50A450. I bought my TV in May of 2008. I then Had it repaired in 09 due to screen discoloring issues. Today while watching it a thin black horizontal line has appeared. It shows up on all inputs and runs across the top of the screen about 3" from the top of the screen. It looks like a row of inactive pixels. TV has been sitting on a stand for nearly it's entire life and gets used everyday for several hours. Obviously I am 3 years out of warranty, but 4.5 years seems like a short life for a $1200 TV..

I have read others have had this issue. Is there any fix? or should I be shopping for a non Samsung TV?
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post #2 of 5 Old 01-08-2013, 04:11 PM - Thread Starter
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I just called the authorized repair center and they told me to chuck it an buy a new one.
Wow.. 4.5 years.. I think I may be done with Samsung.
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post #3 of 5 Old Today, 12:24 PM
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I just called the authorized repair center and they told me to chuck it an buy a new one.<br>
Wow.. 4.5 years.. I think I may be done with Samsung.
did you get a new tv or was it repaired.
I have a samsung pn50c7000 that I have had for 5 years that just got a line in the bottom half
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post #4 of 5 Old Today, 02:03 PM
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Based upon the other thread you found jgcec I would consider removing the back panel and reseating the ribbon cables that feed that portion of the panel. You have nothing to lose on a set that is out of warranty. Just only do so if you are comfortable with that sort of thing and prepared to take the proper percautions....plasma TVs can contain high voltages and you could get a shock even with the power unplugged. I would think there would be three points of failure with something like this....the boards feeding the panel....the data cable or connection to the panel and the panel itself. Obviously the panel itself would be the worst case scenario as it would be expensive and likely unavailable anyways.


You might also see if the service manual for your set is available online. I'm not sure on the Samsung but Panny service manuals describe potential failures and suggest what parts to replace.

Living room: Sony KDL-60NX720, Yamaha RX-V673, NHT Super One/Super Zero w/ NHT Ten Subwoofer, Panasonic DMP-BDT230 Blu-ray.
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post #5 of 5 Old Today, 08:39 PM
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Based upon the other thread you found jgcec I would consider removing the back panel and reseating the ribbon cables that feed that portion of the panel. You have nothing to lose on a set that is out of warranty. Just only do so if you are comfortable with that sort of thing and prepared to take the proper percautions....plasma TVs can contain high voltages and you could get a shock even with the power unplugged. I would think there would be three points of failure with something like this....the boards feeding the panel....the data cable or connection to the panel and the panel itself. Obviously the panel itself would be the worst case scenario as it would be expensive and likely unavailable anyways.


You might also see if the service manual for your set is available online. I'm not sure on the Samsung but Panny service manuals describe potential failures and suggest what parts to replace.
What would you do to prevent high voltage shocks?
I have built computers and use a static grounding pad.
Is there some other precaution for TVs.

Have you heard of a Samsung plasma tv being fixed with the horizontal black line?
by reseating the cables or the y buffer board replacement?
The other guy Coffee something says the panels are bad if the black line appears.

Actually on my TV one of the hdmi inputs stopped working for about 6 months and then just started working again.
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