Question about Televison & Video
It seems most likely that the problem is either the backlight itself or the power supply board .
If you get sound and there is no picture then it could be issue with the back light inverter
However, if there's no "glow" around the edges when the picture is black,then i am sure that it is issue with the backlight, changing the backlight should solve your issue.
If there is an indication of the backlight working ("glow") then the problem could be anywhere in the video circuitry that drives the panel
If you dont get even sound and the unit is completely dead after switching on, here is the solution
A blown internal fuse would cause things to appear completely dead. It is not intended to be user serviced. If you do find a blown fuse, never replace it with a larger size. Using an oversized fuse may cause additional damage.
If the same size blows again there is some sort of fault, typically something like a shorted diode, electrolytic capacitor, or switching transistor.
There could be more than one fuse. Sometimes there is one on the AC power coming in, and one or more on various outputs from the main power supply. The AC line fuse may fail simply from a nasty surge coming down the power line. Other fuses usually blow from internal faults.
If your TV is completely dead you have to check the fuse, or i f you get any color indiaction on your LED, like colir changing from green to red etc, please leave it as comment, we may solve your issue
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Posted on Nov 14, 2009
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Posted on Jan 02, 2017
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