Question about Texas Instruments TI-86 Calculator

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My TI-86 screen had white lines (dead pixels) in the first and last rows. By following k_akima's remedy (set it to darkest and leave it for a while), I managed to get back the first row pixels to normal. The last row is still partially dead. Do you guys know any other solution to this?

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  • Texas Instru... Master
  • 8,081 Answers

There is no solution for old age. Get a newer calculator.

Posted on May 28, 2018

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6ya6ya
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SOURCE:

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Posted on Jan 02, 2017

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  • 1 Answer

SOURCE: TI-82 Screen Not Working or Black

Try a hard reset. Take out all the batteries, and while putting them back in, hold down the "DEL" key. Then, turn it back on and you can adjust the contrast by pressing the "2nd" key and the down arrow at the same time. I just got this info. online and it finally worked for me...good luck!

Posted on Apr 03, 2008

  • 8081 Answers

SOURCE: buttons on far right row of ti-84 plus clear the screen

Hello,
It seems like a harware problem. I think you shoul have the calculator repaired.

Hope it helps.

Posted on Sep 10, 2009

raklein62
  • 360 Answers

SOURCE: TI-89

If you make a custom, you can have the Toolbar F function keys operate as 7, 8, & 9. If you respond with a rating I'd even write one out for you, and make it where you just hit [2nd] [CUSTOM] for the use of those keys.

Posted on Sep 15, 2009

  • 5 Answers

SOURCE: 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.

Posted on Jan 20, 2010

  • 8081 Answers

SOURCE: I need to enter a 3 x 3 matrix.

  1. Press [2nd] [X to -1] under [MATH[ to access the (Matrix) menus.
  2. Use right arrow to highlight [EDIT]
  3. Press [1:A] to edit (create from scratch) the A matrix.
  4. On the line MATRIX[A] line cursor blinks on 1
  5. Enter m dimension (3) and press [ENTER].
  6. Cursor moves to the second dimension (n). type 3.
  7. Press [ENTER].
  8. A 3x3 matrix template is displayed with A_11 element highlighted.
  9. Replace the value 0 with your value for A_11.
  10. Press [ENTER].
  11. Type a value and press [ENTER].
  12. When finished, press [2nd][QUIT] to exit the matrix editor.
Your matrix is ready to be operated on (squaring, multiplication by a scalar, inverse if matrix is non-singular, determinant.) All operations are available under [2nd][X^-1](Matrix) [=>][MATH].


Posted on Feb 03, 2010

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1 Answer

White line down centre of screen advent verona


Those are called "stuck pixels" .
Try this:
1.Turn off your laptop.
2.Get yourself a damp cloth, so that you won't scratch the screen.
3.Apply pressure to the area where the stuck pixel is. Try not to put pressure anywhere else, as this may trigger the creation of more stuck pixels.
4.While applying pressure, turn on your Laptop.
5.Remove pressure and the stuck pixel should be gone.
If the computer is still under warranty, return it for repair. If the warranty is dead, you may wish to try some of the home remedies listed in this article:
http://www.wikihow.com/Fix-a-Stuck-Pixel-on-an-LCD-Monitor

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Try this, hook up new battery and go to MODE and darken and lighten the screen.. do it ten to fifteen times. if that doesn't help, try hook up most left and most right's battery terminal to a DC supply at 4.5V. dont go above 4.5 it will fry your calc (it is design to handle 3V). now you are forcing extra juice into the dead LCD screen lines... and reapeat the MODE + darken trick. I fixed mine like that! Works! and remeber to leave it completely black(darkest) for a while to keep that dead line alive!

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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.

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1 Answer

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Try a hard reset. Take out all the batteries, and while putting them back in, hold down the "DEL" key. Then, turn it back on and you can adjust the contrast by pressing the "2nd" key and the down arrow at the same time. I just got this info. online and it finally worked for me...good luck!

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I had the same problem but i finally found the solution i held my calculator at gun point and told it to stop messing with me.

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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.

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