Question about Texas Instruments TI-85 Calculator

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TI 85 Screen is too dark

The screen on my TI 85 is too dark. How can I make it lighter so I can read it.

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  • ankur89 May 11, 2010

    The screen on my TI 85 is too dark. How can I make it lighter so I can read it???

  • Anonymous Mar 20, 2014

    how to convert a deciminal to a fraction on a ti-85

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The "2nd" key and then down arrow will lighten it up. You have to press 2nd and then the down arrow for EACH adjustment, in other words, you cannot just hold the keys down. Keep pressing 2nd and then down over repeatedly.

The bad news is that with brand-new batteries that are really charged up good, the display should be readable but will will be dark. I am using new Lithium Ion Energizers, and the display will not turn down. I also tried using NiMH rechargeables with no luck, so your best bet on batteries is probably just plain old AAA alkalines.

Posted on Jan 31, 2013

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I'm so glad someone asked this question before me. I have my wife's to help me with some economics problems, but I'm having trouble contacting her (I'm in Kuwait, while she's in the US) Thanks for the 2nd key arrow thing.

Posted on Sep 20, 2008

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Press the 2nd key and the down arrow to lighten the screen.

Posted on Nov 13, 2007

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1 Answer

How do I lighten the screen on my TI 85 calculator, it is very dark, I just recently changed both batteries


Press and release 2nd, then press and release down-arrow. Repeat as necessary. If you go too far, press and release 2nd, then press and release up-arrow.

Oct 18, 2014 | Texas Instruments TI-85 Calculator

1 Answer

The screen is dark and i dont know how to make it lighter


Turn the calculator on. Press then release the [2nd] key, then press and hold the [down-arrow] key. If you go too far, use the [2nd] and [up-arrow] keys to darken the screen.

Aug 30, 2011 | Texas Instruments TI-85 Calculator

1 Answer

The batteries died, and now when I turn on the calculator the screen is too dark for me to read the numbers. How do I lighten up the screen?


Try adjusting the screen contrast. Press and release the 2ND key, then press and hold the up-arrow to increase or the down-arrow to decrease the contrast.

Oct 25, 2010 | Texas Instruments TI-85 Calculator

1 Answer

TI-85 with new battery is too dark to read.


Turn the calculator on. Press and release the 2nd key. Press and hold the down-arrow key for a few seconds to lighten the screen. Obviously, if you go too far, press and release the 2nd key and then press and hold the up-arrow key.

Aug 12, 2010 | Texas Instruments TI-85 Calculator

1 Answer

How do you set the contrast on the TI-85? My


turn the TI-85 on and then hit the yellow "2nd" button and then down arrow. This may take several repeats. If it gets too light hit "2nd" and Up arrow.

May 12, 2010 | Texas Instruments TI-85 Calculator

1 Answer

How do you set the contrast on the TI-85? My screen is too dark and I need to lighten it. Thanks!


Turn the calculator on. Press and release the 2ND key. Press and hold the down-arrow key until the screen is to your liking. Obviously, if you go too far, you can press and release the 2ND key and then press and hold the up-arrow key to go the other way.

Mar 19, 2010 | Texas Instruments TI-85 Calculator

2 Answers

Darkness to lightness


you have to press the 2nd key, then the up or down arrow. up for darker screen, and down for a lighter screen.

May 08, 2008 | Texas Instruments TI-83 Plus Calculator

3 Answers

Dark screen


hit second and the down arrow to change screen darkness

Apr 30, 2008 | Texas Instruments TI-85 Calculator

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