Question about Sharp LC-32AV22U 32 in. LCD TV

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Sharp 32" lcd tv vertical lines on screen

Y sharp 32" lcd tv is showing vertical lines, not sure what the problem is. The sound works fine, and the line colors change as the picture changes. It used to work fine, then it did this once, and after turning it on and off a few times, i got it to work again. After coming home today, i turned it on again, and im back to the vertical lines. Tried taping the screen as well as the back of the tv, and wasn't able to get it to work. Also took the cover off and checked the connections, and nothing changed. What should i do? It has some service ports on the back, including one with a usb connector. Is there some way of using this with my laptop or some other device to tell me whats wrong with it? I know it would be easier to buy a new tv, but i'll never learn anything by doing that. Instead, i'd rather fix it myself. What do i check, and how do i go about doing this? Here is a video of it, i posted it on youtube a few hours ago: https://www.youtube.com/watch?v=fmk2Tev9ik0&feature=youtube_gdata_player

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  • 1,238 Answers

Sounds like you have receiver connection problem..

To test it try to play dvd on your TV..if the picture is fine your TV is good..your problem is on the cable box or receiver..

Posted on Nov 06, 2012

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6 Suggested Answers

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Posted on Jan 02, 2017

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  • 1894 Answers

SOURCE: After 4 hours of use, developed a green vertical line down center of picture.

your vertical ICs need to be replaced.


Posted on Jul 21, 2008

  • 346 Answers

SOURCE: Blue horizontal and vertical lines

poor convergence

Posted on Nov 12, 2008

  • 33 Answers

SOURCE: Sharp aquos hdtv has sound but shows a white screen

yes and no. That particular tv you have is done for, but if you just purchased it 6 months ago, you are still within you 1 year warranty with sharp. they will ask you to take it to a authorized service center and you need to follow through with the process. about a week or 2 will pass and the service center will deem the unit unrepairable and sharp will replace it if they cant solve the problem. give em call..good luck 2u

Posted on Feb 19, 2009

  • 1 Answer

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.


Posted on Dec 18, 2008

  • 53 Answers

SOURCE: Picture goes black but hear the sound

this is the problem related to display of ur TV screen...please contact the service centre...plz dont try to repair it urself..

Posted on Apr 30, 2009

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