Question about HP PL4260N 42 in. Plasma HDTV

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PL4260N Getting Pulsating Lines Across TV Screen. Checked connections and cable OK

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  • eamaral May 31, 2008

    Amazing, same thing happend to my PL4260N on the same date.

    I was watching a show and hundreds of vertical white lines started crossing the screen. No solution so far..

  • derstewie Aug 31, 2008

    I have the same problem - it goes away and comes back...but is getting more frequent. I thought it was the connection and replaced all the cords, but even when I whitewash the screen it does the same thing. Oh well I guess it's time for a new TV.

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I also have 2 horizonatl lines that roll about a foot apart up the screen...
i have been told twice now by two different people that it is a cable grounding problem, so if you have cable tv call the company and tell them what it is doing, i was informed they are aware of this problem and can install a filter at the main cable in line and this should solve this problem...which since i just had this looked at this morning i am going to be calling the cable company today!
hope this helps

Posted on Dec 09, 2008

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Posted on Jan 02, 2017

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What part is needed to fix colored vertical lines across entire screen of Samsung tv


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Would have helped if you posted the make/model of the TV as well.

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Horizontal lines across tv


If your LCD TV or monitor has stopped working, or is displaying one of the following
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I have a Grainy Screen with Horizontal lines, There is picture behind this. Is this th Ysus Board? I have a HP PL4260N 42 In


Is it only when connected to the computer? If so there are several settings that could be causing the issue. The biggest is the refresh rate, make sure it's set to a max of 60HZ. Also make sure the resolution is not set to high. If your TV is 720p it's 1280x720, for 1080p it's 1920x1080 MAX! Also make sure the cable is tight on both ends. If all this is okay, it may be a hardware issue, but it's doubtful. Try hooking the computer to another TV.

If it's not a computer the issue is most likely either the source resolution or the cable.

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Green lines on LCD screens generally means physical damage. Did you drop it or bump it by chance? Physical could also include the cable that you are using. Try using a different cable, or make sure it is connected all the way.


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Little lines across the screen about 6 lines going from Side to Side. What can be done


look it up online.. some guy uses a baseball bat to fix that on his lcd tv.

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Hi phalbeis, Unfortunately it looks like the power supply has failed, since the unit is new I would check into the return policy of the store you bought it from, if your lucky you can just exchange it. If not it will have to be shipped back to the manufacturer.which can be a hassle, you may have to pay the shipping to the repair facility.
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Getting Pulsating lines across screen


I have 2 horizontal lines that roll up my screen about a foot apart
i have had 2 different tv repair men tell me it is a CABLE GROUNDING problem
you should call the cable company (if you have regular cable) and supposedly they are aware of this type of problem and can install a filter at the main cable in box and hopefully this will work for you

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1 Answer

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If the lines across the screen are made up of coloured blocks, then the problem is likely to be a weak signal.

Digital channels are broadcast in groups called multiplexes. Sometimes one multiplex may have a weaker signal than others, and so you experience problems with up to 6 channels when all others are ok.

If it is only one or a few channels then just wait and see what happens, because it may be transmitter works.

If you have problems with all channels it could be a connection or antenna problem.



If the lines are just straight lines, then try resetting the TV as follows:

Switch on the TV

Press and hold the menu button on the side of the set. The settings menu will appear. Hold until the menu disappears again.

When you release the button, the TV will take up to about 90 seconds and then reset.

The TV will then show the original screen when the TV was new.

Press ok when shown.

Set language and country settings.

Move down the list and press ok to re-install all channels.

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