A black square pops up on the screen while watching a show. The only way for this black square to go away, is to turn up or down the volume.

Black square on the screen Vizio Gallevia 47" 1080p - Fixya

www.fixya.com/support/t355299-black_square_screen_vizio_gallevia_47

Jan 16, 2008 - Black square sized app. 10"x10" pops up on the bottom right corner of the screen and won't go away. .... Model 42LG70. Why is nothing on screen except for horizontal green and pink pixel line? I am looking at replacing the ...

bad screens display vertical lines with a white background ...

https://www.ifixit.com/.../bad+screens+display+vertical+lines+with+...

iFixitJun 17, 2014 - I am now replacing a screen on a different G2 and I am on the secondscreen. ... A touchscreen smartphone made by LG Released: 09/2013 Model: VS980..... on the rigth side, from the top to the botton has 6/7 black lines.Missing: 42lg70 ‎pixel

Broken LG LCD TV Capacitor Black Screen My Wont Turn ...

? 6:27
https://www.youtube.com/watch?v=EbGiXqBAvvo
Aug 25, 2010 - Uploaded by FixItUrselfDummy
Broken LG LCD TV Capacitor Black Screen My Wont Turn On ...How I fixed my LG TV, Won't turn on or show picture Model: LG42LC7D ...Missing: horizontal ‎pink ‎pixel ‎line

it could be you have pressed the old teletext service button, look for a button with 3 lines on it in a box and press it or try turning the tv off at the plug then back on again.

How big is this black square? Is it like 1/4 to 1/2 the size of the screen? If so, you probably have Closed-Captioning turned on, and turned on to TEXT mode. Either change it to CC1, or else turn it off, and your black square will go away!

it's one of the closed-caption options. get into the menu and remove the cc.

it sounds like someone may have accidentally turned on the closed caption text box. So simply. turn off the closed caption and you sould be set!!!!
Larry

Turn off your Closed Caption, it's in text mode.

You have the closed captioning turned on to "Text" mode. Turn off the CC and it will go away.

Good Day, britt93;
It sounds like you have the TV's CLOSE CAPTION on; in the text mode, turn off and you and the TV will be fine.
Good Luck, big IRISH.

He, he. Somebody activated the subtitle mode on the remote. Desactivate the CC mode on your menu and it'll go away or at least if you want CC put it in CC1 Text1

I had the same problem once with my RCA television. It only happened on certain channels and didn't happen during commercial breaks. If I adjusted the volume on the tv the box went away, but came back shortly after. The problem ended up being some malfunction in the closed captioning. I turned it all off and changed the CC settings and never had the problem again.