Question about Sharp AQUOS LC-42D85U 42 in. LCD TV
Unplug it for about an hour to see if it will reset itself, if not, you will have to do some in-depth troubleshooting or have it repaired.
First two board to check will be the power supply module and the backlight inverter board. You will be looking for bad caps, cold solder joints, short circuits in the power supply and in the inverter board.
Please read my guide so you get some basic understanding on how LCD TV works.
If you are going to DIY and have proper tools, electronics knowledge, and know safety precaution then please read on:
Please see my basic troubleshooting guide here:
Capacitors kit: http://lcdalternatives.auctivacommerce.com/Default.aspx
Posted on Aug 04, 2010
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Posted on Jan 02, 2017
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