Question about Texas Instruments TI-83 Plus Calculator

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My calculator won't get rid of the big black square in the center I've tried pressing the 2nd key and then the down button but nothing seems to work and the back up battery is new and new AAA batteries in it to.

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My Ti83 had the same problem. It got sat on, and broke the filament in the middle of the screen. Your right, it isn't going to go away. Eventhough, after a while it did seem to lighten up a little before, I sold it cheap on ebay. I think the filament leaked back through the back side of the screen. It is not worth fixing, and your better off getting a low winning bid for a better one on ebay. You will more likely destroy it if you try to take it a part. I only know one person who was able to take theirs a part. Everybody else destroyed theirs. If you have to have one try ebay. They will tell you everything wrong, and your more likely to get a good one. People on ebay will disclose everything about their products instead taking the chance for getting bad feedback.

Posted on Nov 01, 2009

  • Richard Klein
    Richard Klein Nov 02, 2009

    They almost give them away on ebay! If you do it right.

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Hello,
Read this article from the TI Knowledge base. It may help you to diagnose further.

I hope it helps.

Posted on Oct 30, 2009

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Related Questions:

1 Answer

Still dark screen after trying to hold down the second key and then the down arrow


I got frustrated with mine so I started to press the 2nd, then releasing, then hitting the down arrow, and back and forth... and it worked! Please try this instead, it worked and I've been trying to use the hold and press this and that, but the alternating worked better!

Jan 09, 2012 | Texas Instruments TI-86 Calculator

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How do i use the square root button? I don't know how to use the gray symbols above the buttons.


Press the "2ND" key at the upper-left-hand corner of the keyboard to access the second functions. For example, to calculate the square root of 2, press 2ND [square-root] 2 ENTER.

Aug 26, 2011 | Texas Instruments TI-84 Plus Calculator

1 Answer

All I get when powered on is a black square that is gridlike. No other controls work. All 5 batteries are new. How do I get it fixed. My location is Reseda California 91335


Try to lighten the screen reolution. Turn the calculator on, press the 2nd key. Then hold the down arrow key. This should lighten the screen. You can darken the screen also. The only difference is hold the up arrow key down until it's dark enough.

Jul 14, 2011 | Texas Instruments TI-83 Plus Calculator

2 Answers

How do u use sqaure roots


  1. Press 2nd button (upper left hand corner of the device, it's the blue button)
  2. Press the x2 button (just to the left of the 7 key)
  3. Put in the number you want to square root.
  4. Press =
Hope that works for you.

Mar 01, 2011 | Texas Instruments TI-30 XIIS Calculator

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How to calculate a square root number after pressing the 2nd button? For example, one of the problems i was asked was, 105625 all in square root by pressing 2nd, x^2 105625) and enter. But I cannot find...


Are we discussing squares or square roots?

The square root is the 2nd function of the multiply key.

There is no square function on the keyboard. Instead, simply raise the number to the second power using the ^ key just above the divide.

Sep 04, 2010 | Texas Instruments TI-89 Calculator

1 Answer

TI-84 Plus Calculator: my calculator screen is black everytime i turn it ...


Turn the calculator on. Press and release the 2ND key. Press and hold the down-arrow key for a few seconds until the screen lightens.

Obviously, if you've gone too far, press and release the 2ND key, then press and hold the up-arrow key.

May 17, 2010 | Texas Instruments TI-84 Plus Calculator

4 Answers

Dark screen?


press 2nd, hold the down key until the screen lightens up.

May 07, 2008 | Texas Instruments TI-85 Calculator

7 Answers

Help!!a Black screen appears when I turn on my calculator


http://oakroadsystems.com/math/ti83oops.htm#Lines

ok guys, after about 10 years of not using my ti-83, i put the new batteries in and got the black screen you are all talking about.. came to this site.. saw no solutions.. kept looking.
I've fixed my calculator, but my brain won't tell me exactly how.. but i followed those instructions..
you CAN see what is on your screen if you tilt it under the light ... just fiddle around until you can see faint writing on your screen under the black.
Press window

i have these entries in my calculator
xmin=-10
xmax=10
xscl=1
ymin=-10
ymax=10
yscl=5
xres=2

then go and press second and the down arrow to lighten your screen. it should work.

Nov 01, 2007 | Texas Instruments TI-83 Plus Calculator

3 Answers

Screen is all black


Try adjusting the brightness by pressing 2nd key or witchever name is on yours for the Alt key + the up or down arow key(as you see fitted)

Aug 25, 2007 | Texas Instruments TI-83 Plus Calculator

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