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The Samsung LCDs plagued with bad capacitors are a few years older than the LED backlit models.
I'm starting to see the first of these come in with actual faults (cracked panels from accidental damage is far more common).
Most of these have had tab bond failures in the LCD panel itself. Where the failure occurs between the tab and PCB it may be repairable (my attempts so far have failed, but I have seen it done). When the failure is between the tab and the panel the only option is to replace the panel (usually not viable).
Other have had LEDs fail in the backlight. The shows as a dark area in the picture or causes the backlight driver to shutdown. Also repairable, but probably not viable.
LED backlights in general don't seem to last as long a CCFL backlights.
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