Question about Samsung LN-R268W 26 in. HD-Ready LCD Television

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Upper left part of screen turns blue after about 30 minutes

Sounds like we have the same problem, perhaps manifesting itself in different ways. The problem I have does not move around, but is focused in the top left corner of the screen along the left edge. I believe it has gotten slightly larger in the past few months. It only happens after the tv has been on for a while, and it seemed like it would take longer to happen during the winter, which made me think it was related to heat.

Did you ever take this to the shop? What did they tell you?

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You have two possible causes. First the Main bd is going bad and second but most probably the Panel is bad and needs to be replaced.

Posted on Jul 16, 2009

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Posted on Jan 02, 2017

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Screen seems OK but there is no way to interface as it does not respond to touch. Unit is 255w and about 2 years old.


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Sounds like the picture tubes are failing,common on sony. do you notice any thin horizontal lines? You mite get lucky and be able to adjust the voltages. Remove back cover and look inside to see which tubes are lighting up.The front panel below the screen will come off and behind it is a small access cover.remove it. there you will find the voltage controls (its a plastic square with 6 knobs). 2 knobs for each tube, 1 is focus the other is the voltage labeled "screen". they are marked so look closely. Green is always in the middle but sometimes they flip the controls for red and blue so pay attention to which you are controlling .slowly adjust screen voltages to see if you can get it to stay on. If you over do it those thin horizontal lines will pop up and the tv will shut off again. If you already have lines back off the voltage by turning knob to the left slowly until they diappear. If that seems to fix it but the problem but it comes back later, then the tubes are shot. good luck!

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Blue color spread over the pictures


This sounds classic to a thermo problem where a part(s) are becoming thermo sensitive with aga and use. When the set is cold and then warmed up, the defective part(s) is changing characteristics.

Some components became thermo sensitive that are driving the display. Or an embeded component in the display itself became thermo sensitive. It is very possible that the fault is on the board that does the X - Y addressing or on the backplane electronics of the display screen itself.

Using the set with defective components is a bad idea. If the part(s) fail completely and go shorted or opened, other more costly damage can be done.

The service rep for the manufacture of your set is equiped and trained to be able to troubleshoot and service your set.

You will have to take the set in to have it serviced.

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I have a blue screen after power up


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