Question about Sharp LC 42LE540U - 42" Aquos LED LED-backlit LCD TV - - LC-42LE540U

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Sharp tv has no power

Got hit by power surge, replaced power supply still no power

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Sounds like your set has been zapped by a spike on the line. Now you know why UPS units and surge diverters were invented.
A new TV sounds probable as many components could be damaged. If you are lucky it could be just a fuse but I have my doubts.
Moral, invest in a surge diverter, it would have saved you a new TV

Posted on Apr 01, 2015

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Posted on Jan 02, 2017

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2010 dlp mitsubishi tv is not working after power surge even though it was on surge protector. Have replaced power supply board and lamp. Now it gives error code 5 red flashes then 7 yellow.


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Check and replace damaged component/s at its main power regulator [SMPS] section circuit. Contact any service technician. If you wish to get some details; check the site linked here. Surf the site with patience. Pull up older posts.
http://electro-medical.blogspot.com/
http://electronicshelponline.blogspot.com/
It will be best to replace the power supply regulator board as card basis rather than making "Surgery" to it; which usually will make loss for both money and time. Even though you can make it right, it will cost around an amount equal to the cost of a new board; including the cost of (spare parts + service charge) More to say, most of the spare parts to it will be difficult to get from open electronic spare part market. This is true to most of the flat panel TV power supply boards; irrespective of its brand and screen size.

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Sharp aquos TV is not working after power surge, how do I fix this?


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Please see my basic troubleshooting guide here:
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http://s807.photobucket.com/home/budm/allalbums

http://en.wikipedia.org/wiki/Capacitor_plague


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