Question about Samsung LE40R72BDX 40 in. HD-Ready LCD Television

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Samsung 40" lcd sound but no picture.

My tv must be almost 4 years old now, about 8 months ago every now and then the picture would just turn black. The sound could still be heard, but just a very dark screen. Turning the tv off and back on again would resolve the problem.But it's doing it all the time now,and driving me crazy.

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May be the backlight is out, can you see a picture when shining a flashlight on the screen. if yes you have either a bad inverter power supply or bad screen (panel).
both are serious , also could be just a few bad capacitors on the power supply, if you want you can do a visual of the power board caps will appear swollen on top and are easy to solder in cost about $1 each

Posted on Aug 01, 2009

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Posted on Jan 02, 2017

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