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Sharp Aquos TV won't power on anymore

HDTV Technical - www.avsforum.com
I have a LC-52LE700UN that is about 8 years old, and out of the blue today it stopped working properly. When I power it on, the Power and OPC lights in front blink once, and then the power light blinks once, and it just repeats this. I am getting no picture at all, just a black screen. I tried some troubleshooting methods, holding various buttons before powering on, the only thing that did anything was if I hold channel down and volume up and then plug it in, the power light becomes solid and stays solid but again, no picture or any other change. Anyone got any idea what to do?
Date: Jun 19, 2017   


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