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I have a Samsung LN-T5265F LCD TV. Recently, I've been having an issue with it where a three-inch wide green band appears down the center of the screen (during DVD playback from an HDMI-connected PS3 and coax-connected cable from Comcast) for about five seconds followed by a sort of green "shadowing" effect on the right side of the screen that lasts for about ten seconds. This has happened twice since yesterday, but there doesn't seem to be any residual effect; the screen behaves normally after the green stuff goes away. Does anybody have any suggestions?

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  • tommyhx1138 Dec 11, 2008

    The problem has escalated since my original post. The green bands have been replaced by thin, colored vertical lines that run from the top of ONE SIDE of the screen to the bottom. The colors and width of the lines vary when the TV is turned off then on again but remain onscreen. I would appreciate any suggestions or input as to what part(s) is malfunctioning and needs to be replaced. Thanks.

  • tommyhx1138 Dec 11, 2008

    All of the external connections are fine. (I haven't dismantled the TV or anything yet.) The screen malfunctions even when nothing is connected (ie, the TV is plugged in and the blank screen is still affected). Could it be any other parts?

  • tommyhx1138 Dec 11, 2008

    OK, I know my television is an LCD and not a projection TV. I am not technologically challenged. I have no idea why FixYa posted my problem under Projection TVs after I clearly searched for my TV by model number and posted my question regarding it.

    In addition to not being technologically challenged, I am also not logically challenged. The first thing I did when I noticed the problem was check on the warranty. It has expired which is why my question is posted on FixYa.

    I would like to express my gratitude for all the legitimate assistance many of you have provided, but I am also intolerant of pseudo-advice (ie, stating the obvious and not actually answering my question) that is of very little use.

  • tommyhx1138 Dec 11, 2008

    Could someone please provide me with some information to find out how to figure out if my TV panel is one that Samsung has offered to replace?

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I agree with mistersony. You have a bad TCON board.

If you had a problem with the panel itself, you should be able to recreate the stripe by tapping the edge of the screen (lightly). If it is indeed a connectivity issue between the ribbon and the glass, a light tapping should disrupt it. Most likely, it is the board, and power related. I would suggest returning it.

Posted on Dec 12, 2008

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I work more with computers than T.V's but the issuie is similar to what happens to LCD screens on our laptops. They have Crystals like the other guy mentioned and usually have a ribbone or some other way they are connected to the board. Here is what might cause the issue.

The GPU could be bad. ( graphics Processor Unit) If its part of the main circuit board, then it will most likeley need to be replaced, If its a seperate GPU that can be removed from the main circuite board, then you may be able to order just that. Depending of course on the T.V.

The other issue could just be a lose connector ribbon, if so inclined, you could take the case apart, but leave the screen on, and power it up and lightly tap the data ribbon and see iof it causes more or less distortion. Then you will know its the ribon and can see about just order and replacing that.

The other issue could be that the connection from the ribbon itself to the screen could be damaged and you would have to replace that.


This information is based off of llaptop LCD's which are similar excpet in size. Is there any video mode that the color bars do not show?

Idf its one of the above issues, then you would have the problem on all video modes. If its only on one, then it might be those input jacks.

Allthough im betting its the GPU chip. Let me know and good luck.

Posted on Dec 11, 2008

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You either have a bad LCD panel OR a bad TCON board. The TCON board is basically the address board for the panel, it tell the panel which lines and pixels are turned on and off, and when to do it. You could try replacing the TCON board, as it is obviously the cheaper option over replacing the panel. A TCON board for your set is available here:
http://www.shopjimmy.com/showparts.cfm?item=323703&ps=3237&pn=3
Be aware that Samsung had a bad run of 46" and 52" panels recently, and many are just starting to show up as defective. Samsung is aware of this issue and has offered to replace the panels in some cases. I hope this information is what you are looking for; feel free to ask any additional questions if you have them.

Posted on Dec 11, 2008

  • Any Guy
    Any Guy Dec 11, 2008

    Samsung has not published the model listing with the panels that are defective. They are handling the panel replacements on a case-by-case basis. The only way for you to know is to contact Samsung customer support. I am sorry if this was not the answer you were looking for.

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This is problem of LCD Panel and if your TV is under warranty, please call Samsung Customer Support.

Posted on Dec 11, 2008

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  • Shahid Electronics
    Shahid Electronics Dec 11, 2008

    Let me explain whats wrong with LCD Panel. ( bit technical though)
    There are few connectors on LCD panel sides to send picture signal / data. These connectors are bounded with adhesive material to LCD panel as its made of 2 sheets of glass and inside crystals of liquid display.
    If any of these connectors become lose, such problem comes and this is not repairable at repair shop level. That is why LCD panel will be replaced.
    There is another issue of cost of LCD panel That is why I asked you warranty cover. You can ask an estimate from Samsung for LCD panel replacement which would be near to TV price.


  • Shahid Electronics
    Shahid Electronics Dec 11, 2008

    If you need, I can post here illustrated picture of LCD panel for easy and better understanding.



  • Shahid Electronics
    Shahid Electronics Dec 11, 2008

    Any comments on LCD problem details?



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It could be because of two problems 1)either the connection is loose somewhere.make it proper. or 2)its the problem of main board and needs reparing to make it proper. components gets faulty or are at the end of its life.need to be checked with a multimeter to locate the faulty ones.

Posted on Dec 11, 2008

  • tech gurus Dec 11, 2008

    definately the internal issue and needs reparing.




     



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