Tv screen goes black and says string to test text mode?

Try resetting your TV! or Unplug it and wait a couple of minutes then plug it back in.

That is a text box. Press the cc button on the original remote until the display reads cc off.

That sounds like a text box. Press the cc button and keep pressing it. You will see different closed captions options on your screen each time you press the button. Finally when it says cc off stop pressing the button and you should no longer get the black box. If you have a cable box connected you may also have to disable the captioning on it.

Look for the CC/Text button on the remote. The TV is in the TEXT mode and is showing garbage that is being sent by the broadcaster, You need to turn the CC/TEXT mode off.

tienes activado la funcion de subtitulos debes desactivarla

Turn off the closed-captioning. If it's set for text mode, the screen will blank out an area for the text to be displayed. On channels or programs where captions aren't being used you won't see any problems, but other times you'll have the mysterious black box. Many TV remotes have a single button to control captions, so it's easy to get into text mode without knowing it.

Projection TV tubes have a liquid coolant that is used to keep them from overheating. After many years the coolant in the blue and green tubes will become cloudy and cause the screen to look dull, red/orange, etc. You may even see halos around images. 

What you will need to do is replace the coolant and clean the crt. You can get a repair kit from www.TvRepairKits.com that includes replacement coolant, photos. instructions, etc.

my tv was working fine. somebody hit the menu button on the tv or the remote and i get the black box appearing in the middle of the screen. and also the pip is staying on my tv it keeps showing "a snowy picture of pip sjpwomg channels 2 through 18 i cannot figure out how to get this off of my screen.

have a tech take out the eeprom and change it for a new one.this will solve your problem.good luck.

Possibly the closed caption feature on this set has been turned on. There is a button on the remote control that says Caption. Press it until you turn the caption off. This will not be on a universal remote, only the original remote. You can also turn this off through the caption section on your on-screen menu.