What is causing this problem on a sharp LC 55 LE653U TV?

SOURCE: sharp LC-26d4u tv won't turn on/power light is off

Check ur power source,unplug replug if not work,Ur tv power board ic inverter it dead needed to be change.

SOURCE: No sound from TV - Sharp TV LC-32GPIU

Make sure that output (audio) set to "fixed" not "variable", to verify that go to menu-option-output select-?

SOURCE: sharp flat panel tv,need manual for lc-19sb25u

http://www.sharp.ca/manuals/default2.asp

SOURCE: OWNER'S MANUAL AND A REMOTE FOR A SHARP SHARP 46'' TV MODEL lc-46s

The mauual you can get from the internet by Googling it will be in PDF format that you can print. The remote use a Universal cheap GE is good and program with one of these codes....
0079, 0123, 0063, 0020, 0004, 0009, 0226,
0266, 0006, 0095, 0122, Low cost approach.

SOURCE: I need a diagram for lcd tv Sharp LC-26SB14U.

I have a sharp LCD (LC-26SB14U) which I purchased one year ago and today the sound stop working as I was watching the olympics. Any idea how to fix this problem as the warranty is only good for a year.
Thanks, Bob