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 replaced all the batteries including the backup battery on my TI-86 and it still doesn't power on. I also tried adjusting the contrast.


It sounds like the calculator is broken. Well broken past the point where you can fix it by yourself. You can try contacting TI about the warranty.

Mar 05, 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

2 Answers

I stop using my TI-86 for a few months and know


I hadn't used mine in years and had the same problem. Essentially you just need to give it a workout to get all the pixels working properly again and then it'll be just fine. I adjusted the contrast between full dark and nothing multiple times and turned the calculator on and off after each cycle and now it works like new.

Jul 06, 2010 | Texas Instruments TI-86 Calculator

1 Answer

Ti-86 Error Message--HELP!!


To restore memory on a TI 84 to factory settings follow the directions on pages 108 and 109 of the instructions manual (TI 84 Plus Silver). Otherwise look in the index for RESET MEMORY to get the right page. Be sure you read the precaustions!!!!!!

Dec 12, 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

1 Answer

IT-86 Both batteries removed, now dead


Hello,
Use the TIconnect or TIGraphlink software to reinstall the programs. You will find the programs in the TI Program archives.
ftp://ftp.ti.com/pub/graph-ti/calc-apps/86/.

Hope it helps

Jan 18, 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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