Question about Sharp Televison & Video
The white smoke - usually with a nasty smell will be a capacitor in (most likely) the power supply section. You will probably find one of the capacitor cans has a bowed and punctuered top. It's designed to fail that way with excess pressure. (If the top hadn't punctured, then the pressure would probably have blown the entire can off of its legs and made a mess on the PCB.)
Assuming it is a failed capacitor, it's probably a one-off (you'll find out!), so replace it like-for-like. Pay attention not only to the polarity and voltage rating, but make sure it is high-temperature rated (ususally 105C) and a low ESR type. Fittting a standard (non-lowESR) capacitor in a switch-mode power supply will lead to early overheating and failure.
(Obviously, if there's any detritus from the old capacitor, clean it off of the PCB first!!!) Good luck with that.
Posted on Dec 02, 2016
Testimonial: "wow well out my steady capability hands then!!! thank u for your reply you is spot on with diagnostic me main capacitor can lid has blown so I'm not able to just remove the top then?"
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Posted on Jan 02, 2017
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