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I have a memorex LCD HDTV 3yrs old, now the set has perfect sound but no picture, just a black screen,

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Your LCD lamp may have burnt out or the component usually a driver transistor that drives the lamp to glow may have been defective. Some of LCD have fuses on this section that automatically opens when there was a problem. A qualified electronic service technician could figure out your problem right away if you don't have any experience in electronics troubleshooting.

Posted on May 27, 2011

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Posted on Jan 02, 2017

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I have exactly the same problem with the same model tv. I am currently scouring the internet to try and find a solution to fix this problem. If you find one before I do, please share your findings and I will do the same. It has been suggested that it could be capacitor failures in the power supply unit. I have not looked at the psu yet to see if any capacitors are "bulging" I want to be sure before I start changing components.

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