Question about Texas Instruments TI-86 Calculator

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My TI-86 screen changes brightness randomly

After using my TI-86 calculator for a somewhat extended period of time, or sometimes when i turn the calculator on or off, the screen brightness changes. Sometimes the screen becomes very light, and at other times very dark it seems rather sporadic. It's not hard to fix, but id like to know what may be wrong.

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(x-3)(x+3)

Posted on May 17, 2013

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  • 2 Answers

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Posted on Jan 02, 2017

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SOURCE: How do I increase the screen brightness on my TI-85 calculator?

push the 2nd key and then the up arrow.
Jon

Posted on Mar 26, 2009

  • 56 Answers

SOURCE: cracked TI-86 screen

well this isn't looking to good for you? The TI 86 isn't made anymore, so I doubt you can get it replaced. your luck has kinda run dry. You are probably going to have to buy a new calculator. Sorry to be the barer of bad news. Good luck though.

Posted on Feb 12, 2008

tantong
  • 138 Answers

SOURCE: 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

  • 7993 Answers

SOURCE: the calculator crashed two times several days ago

I will address one part of the question only: I will avoid the speculations.

How to change the screen contrast

  1. (TI-Nspire with native keyboard): With the TI-Nspire keyboard in place,
  2. Press the ON button to turn calculator ON.
  3. Press and HOLD the Control key [CTRL]
  4. Press [+] to darken the screen
  5. Press [-] to lighten the screen (Your case)
  6. Stop when contrast is adequate.
  • TI-Nspire with TI84PLUS keyboard: With the TI84PLUS keyboard in place
  • Press the ON button to turn calculator ON
  • Pres the [2nd] key and RELEASE it
  • Press the [UpArrow] of the NavPad to darken
  • Press

Posted on Feb 15, 2010

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SOURCE: My calculator will not go to the operating screen,

Yes, there is a reset. Remove all four AAA batteries. Press and hold the ON key for at least ten seconds. Replace the batteries.

Posted on Jul 22, 2010

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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.

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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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