Question about Texas Instruments TI-86 Calculator

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TI 86 No display screen

I replaced the bateries in my TI 86 and there is no display. Is there another internal battery or reset? Thanks for any help you can give.

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  • Anonymous May 17, 2008

    wont turn on. put in new batteries and back up battery

  • Grumpy Mike May 28, 2008

    I used the ti86 on friday and it just wont turn on on Monday. new batteries and back up battery .. still wont boot up.

    any body have any ideas?

    Is there a repair center any where?

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1 Answer

How do I reset my TI-86 after a long period of no use.


Every time you change batteries this will happen to you. First press 2nd then press and hold the down arrow. Hold until their is no black in the background but you can still see the numbers on the screen.

Sep 05, 2014 | Texas Instruments TI-86 Calculator

1 Answer

I've had my ti-86 for a very long time & recently it just quit working. I changed the AAA batteries & the back up battery & it will not come back on. Please help???!!!!


TI calculators have an annoying habit of dimming the screen when the batteries are changed so that it appears as if the calculator isn't turning on. Turn the calculator on (or at least press the ON key). Press and release the 2ND key. Press and hold the Up-arrow key for a few seconds and see whether the screen becomes legible. Does it?

Dec 02, 2011 | Texas Instruments TI-86 Calculator

1 Answer

Turned on ti 86 and have a black screen. I have replaced all of the batteries and still is black.


Whenever the screen is full and a line with calculation result comes up at the bottom of the screen, the screen all of a sudden shows things in a weird way and can't be read. By press "2nd+mode"(=quit), or try reset button (a small hole which a pin can only be used to press it to RESET. Gud Luck

Aug 25, 2010 | Texas Instruments TI-86 Calculator

1 Answer

It doesnt turn back on. and i just put new bateries in it.


Hi,
After battery replacement, the screen contrast very often is reset to defaults and that may be a blank screen. Check that batteries were inserted correctly.

To darken the screen
Press the 2nd key and release it.
Press and hold the UpArrow key to increase the contrast (darken it.)

If that does not work, you may see this page on the TI Knowledge Base page to help you troubleshoot further.

Hope it helps.
Thank you for rating this solution.

Nov 24, 2009 | Texas Instruments TI-83 Plus Calculator

1 Answer

My TI-86 has a completely black background, please let me know how to fix it. thanks


Hi,
After changing the batteries the calculator is restored to factory defaults, but the screen contrast may change. In your case (even if you did not just change batteries) the screen may be too dark. Lighten it a bit.
Press [2nd] key and release it.
Press and hold [DownArrow] until screen is light enough.

Hope it helps.
Thank You for using FixYa and for rating the solution.

Nov 15, 2009 | Texas Instruments TI-86 Calculator

1 Answer

The screen is black i cant see any thing i replaced the batteries


this is a firmware problem and you may need to upgrade the software or have carrier do it.

Aug 27, 2009 | Texas Instruments TI-86 Calculator

1 Answer

I do not see anything on the screen. I replaced


First try turning the calculator on and then pressing the 2nd key. Hold down the "up arrow". If the contrast has been turned down, this should turn it up.

If that doesn't work, could be that your calculator needs to be reset. Take out the internal battery located right above the 4 AAA batteries behind a small door with a screw. Leave all batteries out for about 8 hours. Reassemble and hopefully you can turn it on. If this doesn't work, you might replacing the internal battery. Hopefully one of these solutions will work.

Aug 06, 2009 | Texas Instruments TI-86 Calculator

3 Answers

TI 86- Texas instrument


OMG THANK YOU SOOO SOOO MUCH

i had borred my friends ti-86 and when school finished i forgot to return it. i ended up leaving the calculator in my car where the sun fried the battery.
3 months later i brought new batteries and when it turned on i only saw black and i started to freak out thinking i had to buy a new one..

ONCE again thanks for the solution

Jun 17, 2008 | Texas Instruments TI-86 Calculator

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