Question about Texas Instruments TI-89 Calculator

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Half the screen on my TI-89 is black

I have the normal Ti-89. When I turn on the calculator, the screen is half black. If I change the contrast, it does not help me see anything anymore. I used to be able to read the calculator by adjusting the contrast to barely make out the numbers on both sides, but now that doesn't even work for me.

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Re: Half the screen on my TI-89 is black

Hey, i have nearly the same problem and now finally found a solution to it. In my case half of the screen was empty and the other worked correctly AND slight pressure to the frame surrounding the display on the side of the defect half and/or above the display makes the display reappearing again. Because it's annoying if you always have to press with one hand on your calculator while working with it i did the following: Important: Make sure that... ... you have a backup of the data stored on your TI because you could lose them during the following procedure. ... we are really talking about the same problem. ... this hints come without any warranty and you might destroy your calculator completely following this advice. 1. Open your TI 89 as described for example in [1] 2. Take a piece of foam rubber and cut out a stripe with a shape like |_ or "L", about 1cm in width which fits approximately the frame around the display on the the defect side and the top. 3. Place the foam rubber on the silver shield you see after opening the back of your TI. 4. Then you can assemble your calculator again. I hope i could help you! [1]

Posted on Sep 21, 2007

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The top half of the screen is black. This is not a contrast issue. I know how to deal with that. It is the top half only.

The most likely answer is that the screen has partly failed.
Another user said 'The TI-8X series of calculators work great as standalone calculators, ... I've purchased at least 3 TI-8x's over the years and all of them died (screen failure)'

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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

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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

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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

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How do you fix a TI-89 calculator whose screen is half dark?

use a metallic clip to put pressure along the top side of screen81cc2b4.jpg

Nov 11, 2009 | Texas Instruments TI-89 Calculator

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TI 89 Titanium

Well the best solution is to stop making more problems

Oct 26, 2007 | Texas Instruments TI-89 Calculator

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it may have been spoilt, TI-89 Titanium calculators are not very lasting. You may want to try the resetting all memory (2nd 6 F1 3 Enter)

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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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