Question about Texas Instruments TI-89 Calculator

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TI 89 calculator

I was playing games on it and i accidently bumped on the table and now it still works but the screen has increased its contrast. if i bed it towards light i can see it but if i hold it normally i cant.

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  • flix8612 Apr 25, 2008

    Im having the same problem with my TI-89 titanium. Each time i power up my calc a black screen will appear bt it has having all the icons appearing faintly when i tilt it towards the lights. I even changed the batteries bt still having problem...Plz help me out, got examz coming!!!



1 Answer

Have you tried adjusting the contrast from plus and minus buttons?

Posted on Feb 28, 2008


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I cant really read some of the options on the screen on my ti 89....the letters are so blurry......what can i do ?????

Hey shrestha,

I've never seen a calculator with display clarity problems.

The only option I could think to offer you is to attempt to adjust the contrast. However, I'm not sure whether or not your TI-89 actually has an option to change the contrast. Because I own a TI-89 Titanium - and although its a wonderful calculator - it does not allow the user to alter the darkness/brightness of the display.

Call Texas Instruments: 1-800-TI- CARES...They are pretty helpful with common questions like this.


The Math Cheetah

Mar 13, 2011 | Texas Instruments TI-89 Calculator

1 Answer

I have a TI 89 but when I turn it on the screen is totaly black after waiting like 10minutes or so it started to brighten.

Try adjusting the screen contrast. Turn the calculator on. Press and hold the diamond key, then press + to darken or - to lighten the screen.

Jan 12, 2011 | Texas Instruments TI-89 Calculator

1 Answer

I turned on my TI 89 calculator to take an online college test that is due by midnight, and my screen is completely black!..HELP

your contrast might be up to much.
try this:

hit the diamond key and then the minus key. this shoud decrease the contrast. keep reapeating these same steps until your home screen is visible. hitting the diamond key, then the plus key turns up the contrast.

Oct 20, 2010 | Texas Instruments TI-89 Calculator

1 Answer

My ti 80 screen is frozen

If nothing is visible on the screen, increase the contrast by pressing and releasing the 2ND key then pressing and holding the up-arrow key.

If the screen is visible but you get no response to the keys, press and hold the 2ND, left-arrow, and right-arrow keys, then press and release the ON key.

If this doesn't do it, please add a comment to this post and we'll go on from there.

Sep 11, 2010 | Texas Instruments TI-89 Calculator

1 Answer

I have a casio ti 89 calculator and now nothing's working. There's only a message on the screen "adress error" . Please can you help me ?

The following procedure will completely reset the calculator. Please, bear in mind that this will erase the memory of the calculator and restore all manufacturer's defaults.

On the TI-89 family:
• Hold down the following keys [2nd] [<] and [>] (right and left arrow keys)
• Press [ON]
• Release all the keys at the same time
• Adjust the contrast, if necessary

Jun 26, 2010 | Texas Instruments TI-89 Calculator

1 Answer

I accidently sat some books on my calculator, and the screen went do I make it go back to normal?

Adjust the contrast by pressing and holding the Diamond key and then tapping the - key to lighten or the + key to darken the screen.

Dec 07, 2009 | Texas Instruments TI-89 Calculator

1 Answer

It will not turn on

The problem may be due to the screen contrast being too low.

You can play with the contrast (increase or decrease).
To change contrast you perform the following manipulations.
1. Turn calculator ON
2. Press [2nd] key, then release it.
3. Press Up arrow, then release it
4. Repeat steps 2, and 3, until contrast is satisfactory.

To decrease contrast do as above, pressing Down arrow in step 3.

Hope it helps lighten up those screens

Jul 14, 2009 | Texas Instruments TI-83 Plus Calculator

1 Answer

The calculator that I have is all blue or black in the screen

The right way to set contrast is
1.Press [Diamond] key, release it
2. Press [+] and release it (to increase contast) or [-] to decrease.
3 repeat steps 1, 2 till contrast is adequate.

If you follow procedure and it does not work resel machine to factory default [2nd][MEM] [F1][1][2]

Hope it helps

Jun 30, 2009 | Texas Instruments TI-89 Calculator

1 Answer

The TI-89 Titanium calc. purchased in Oct. 09 won't turn on

Try to increase the contrast
1. Turn it on
2. press [2nd] and release button
3. Press [UpArrow] and release button
4. Repeat steps 2 and 3 until contrast is adequate.

If that does not work use the link below to install TIConnect software
Install it on your computer and run it to oppen the main Window. Then connect you calculator to a USB port and, in the TIConnect main window Click the TIConnect TIDeviceInfo. It will try retrieve the info.
If it does your calculator is fine.

If it tells you Device Not found , Click communication settings in same pop up window where it said Not found, and Select Device, Select Cable, Select Port and try OK..

If all that does not work, then it may be time look for a repair shop.

If you are lucky and it works, you should reinstall the OS, which can be downloaded from You drag and drop the OS on the TIconnect main window. Calculator must of couse be connected to computer.
Hope it helps

Apr 05, 2009 | Texas Instruments TI-89 Calculator

2 Answers

Screen is half Black

The ribbon cable that controls the screen is damaged (or the liquid crystal has baked out... tis happens when the unit is exposed to high temps or long periods of direct sunlight). From my experience w/ these calculators they cannot be repaired.

Sep 11, 2007 | Texas Instruments TI-89 Calculator

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