Question about Texas Instruments TI-86 Calculator

1 Answer

Ti 86 hi, i haven't used my calculator for some time..turned it on and there are missing lines in the numbers...hard to sometimes figure it out what number is exactly that i see on the screen w the lines slicing through number...not very good:-).if i darken the screen totally, i have missing "white" the calculator useless at this point or can it still be fixed? thank you

Posted by on

1 Answer

  • Level 2:

    An expert who has achieved level 2 by getting 100 points


    An expert that gotĀ 5 achievements.


    An expert who has written 50 answers of more than 400 characters.


    An expert whose answer gotĀ voted for 20 times.

  • Expert
  • 138 Answers
Re: ti 86

Hi I got a problem with Ti-86 which is a line of the screen pixel missing. I tried to increase and decrease the intensity of the screen (2nd and up, down). Also tried to go to MODE function. I have tried those for several times. It works great. The line of those missing screen pixel came back. I don't know why. Just try it.

Posted on Mar 09, 2009

Add Your Answer

0 characters

Uploading: 0%


Complete. Click "Add" to insert your video. Add


3 Points

Related Questions:

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

2 Answers

I am using a TI-86 calculator and whenever I try to do even the simplest problems (1+1) I get weird answers (10b) or "error"

Hi mandajoytoll,

Your in binary mode. All you can enter is 1 or an 0 in that mode or, your going to get an error. That is what the b at the end of the number is telling you, Binary! You probably want to change to Dec mode. Press [2nd] [MODE] and arrow down about 5 time. You'll probably notice Bin is highlighted. Select Dec by pressing [ENTER] to go to decimal mode calculations. Then press [EXIT] or, [2nd] [QUIT]. If you have any questions just post a comment and, I'll respond quickly.

Jan 26, 2011 | Texas Instruments TI-86 Calculator

1 Answer

Adjusting the ti-86 screen

First make sure the cable at the top of the screen is not pealing off near the edge, on the inside of the calcualtor. You may need to peal it off and reattach it, align the strip with the metal coating strips on the glass, you will see the strips when viewing the glass at an angle, but that is risky because you may not be able to reattach it. Next check the small square that says "8" on the back of the display board, you will see minature wires, make sure all the wires are lined up properly, if not thats a factory defect. Goodluck.

Feb 04, 2009 | Texas Instruments TI-86 Calculator

1 Answer

When I turn on my Ti-86, there are two lines across the screen

Try to reset the RAM. [2nd] MEM and select Reset.
Hope it helps.

Dec 01, 2008 | Texas Instruments TI-86 Calculator

4 Answers

Texas instruments ti-86 screen problem

The TI-86 uses a very small, very thin ribbon cable to connect the display board to the LCD. The cable is about 2.5 " wide and about 4" long, and is only slightly thicker than a piece of paper but has about 40+ leads buried inside. Over time the leads will break at the folds (there are at least two folds in this cable to fit it down inside the case). There is no cheap solution to fix this problem. You might have some "Mr. Fix-it" try to fix it, but he will tell you to throw it away after he renders it completely inoperable. The calculator uses two Torx bit screws at the bottom of the case (T-6 size) so you will have to get the correct screwdriver to open the case. Save your money, sanity and time and use it till you can't stand the missing lines and throw it out. Even the data cable looks like it is glued down so if it lifts off after being cooked or frozen a couple of dozen times in the back of your car you can't fix this.

Mar 28, 2008 | Texas Instruments TI-86 Calculator

2 Answers

Calculator screen stratified black lines

call the tech support # 972 644 5580, they man was very helpful and they walk you through troubleshooting

Jan 19, 2007 | Texas Instruments TI-86 Calculator

1 Answer

Random characters lines and pixels

I've had a similar problem in the past with my TI-86. It still happens sometimes when I don't use it for a while. To fix it, all I did was set the screen to its darkest setting and left it on for 10 minutes (keep it from turning itself off, by pushing buttons every few minutes.) It works great, and the calculator is fine unless you leave it unused for a month or so. A similar solution may work for you.

Dec 12, 2006 | Texas Instruments TI-83 Plus Calculator

Not finding what you are looking for?
Texas Instruments TI-86 Calculator Logo

Related Topics:

1,206 people viewed this question

Ask a Question

Usually answered in minutes!

Top Texas Instruments Calculators Experts


Level 3 Expert

94198 Answers


Level 3 Expert

7983 Answers

Stevan Milanovic

Level 2 Expert

243 Answers

Are you a Texas Instruments Calculator Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides