My Sharp aquos won't resond to remote

SOURCE: Sharp aquos lcd screen goes blank

i was having these same problems with the screen going black, and i found that when i hit the back of my tv it would work sometimes. so, i improvised on some of the advice on this page and so far no problems. here is what i did (its very easy):

1. lay the tv on the floor and take off the back panel. (i think 12 screws)

2. on the right side of the tv (as you are looking at the back) you will notice a large metal covering that is held in place by 6 screws. unscrew these and remove the metal cover.

3. you will notice that the three screw holes on the left side of the board have some sort of metal or solder around them, in sort of a star pattern. when i looked closely i noticed that most of the metal (solder) was tarnished, or kind of blackened. (this must mean that the ground screws werent getting a good connection and this would explain why it would work sometimes when i hit it because it would vibrate the screws enough to get a good connection! )

so, take a pencil eraser and erase all the black or tarnish off the metal surrounding the screw holes. thats it! (to be safe i took some sandpaper and cleaned up the screw holes on the back of the metal covering, but i dont know if that was necessary)

at this point i followed another gentleman's advice to do a hard reset. this involved unplugging the 8 connections although i dont know if this was really necessary because i believe my problem was a ground issue. i did it just to be safe. his advice is on this site if you want to do this step.

4. i put everything back together and it worked! i performed a soft reset at this point which puts your tv back to factory settings. just go to menu>setup>reset>return to factory settings? yes
this will turn your tv off and back on. that's it. so far so good for me.

SOURCE: sharp remote control not working

Ok, looks like this TV works on MS Windows. Anyone who has had a computer 5 years back knows that when Windows has a problem, there is only one sure-shot solution.

SHUT IT DOWN, START IT UP !

Try this with your TV. Completely unplug it and leave for one minute. Start again. Voila ! Remote works flawlessly.

SOURCE: tv remote controle codes for starchoice 5-in-1 remote (sharp aquos tv)

you might try unplugging the TV and then plugging in again. It worked for me

SOURCE: sharp aquos lc-42d85u remote does not work,

you might try unplugging tv.

SOURCE: sharp aquos lcd, 6 months old. TV will not

try unplugging tv.