Question about Texas Instruments TI-89 Calculator

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TI-89 won't stay turned off/ can't turn off alpha function

The two are probable related- when I power on my calculator after a hard reset without batteries or backup battery, the alpha function turns on and stays stuck on unless I hold down the alpha key. When I try to turn it off, it turns back on after about half of a second. I tried the 2nd-L-R-On reset, blew off any dust that may have been on the i/o ports and still haven't had any luck. Does anyone have any ideas?

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  • Anonymous Nov 06, 2008

    My TI-89 suddenly stops turning off too! It will only turn off for a second when I press 2nd and On. I don't know how to fix it! anyone have any ideas? please help!

  • michaelvforn Feb 28, 2009

    same problem!!! Help!!!

  • tlaczko Mar 13, 2009

    After more than one year of ownership, my TI 89 Titanium started to act strangely - it will not turn off anymore. After changing a set of exhausted batteries, same issue. Immediately after hitting 2nd - Power off, it powers on again. HELP, please !!!!

  • battheman_2 Mar 21, 2009

    can't turn off

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Same problem here, that auto-program, is not worked, please help

Posted on Dec 15, 2010

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Auto-off is to turn off the alpha button when you enter into a program that only uses numbers. It's a safe asm program and download the one that says, ".89z" to your calculator. I guess it will work or not. Remember where you got that program in case you need to uninstall it. I actually think you'll like it. Just have it real close so you can run it when you need to. If you have hardware 2 make sure you download h220xtsr too.

http://www.ticalc.org/archives/files/fileinfo/155/15554.html

I tried to figure a way to help you with a simple function, I'll let you know if I come up with any ideas.

Posted on Sep 18, 2009

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Posted on Jan 02, 2017

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1 Answer

I cant find my L1 buttom in ti 89


There isn't one. Unlike the TI-83/84, the TI-89 lets you use any name for lists. If you want a list (or any other item) named "L1" you can spell it out by pressing ALPHA 4 1.

Mar 04, 2014 | Texas Instruments TI-89 Calculator

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I have a TI-89, I enter a function and then switch to graph. It shows nothing. I tried simple functions like y=x, y=2 and nothing.. It does show the X and Y axis only.


What probably happened is the graph was turned off. stealthnh.png to turn the graph back on, select the function (ex. y1) and then press f4. This should turn the graph back on and you should see the function.
Hope this helps.

Apr 20, 2011 | Texas Instruments TI-89 Calculator

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My ti 89 calculator turns on but the screen is blank. i don't get any results when i push the apps button.


Having gone five months without a response, I assume either the contrast adjustment or the reset solved the problem.

Oct 03, 2010 | Texas Instruments TI-89 Calculator

1 Answer

TI 89 when solving equations or integrating a message appears:


With the ALPHA keyboard, Type in the NewProb command and press ]ENTER] It resets the one-letter variables to their default status.
Alternatively, you can use the CATALOG of commands to launch the NewProb command.
Another way is
In HOME directory, press the [2nd][F1] to activate the F6 key. In the menu list, press 1:Clear a-z and ]ENTER].
If you have to use the variable x multiplied by a function (sin, cos, tan, log, etc) do not used implied multiplication: enter the [*] explicitly.

Apr 14, 2010 | Texas Instruments TI-89 Calculator

1 Answer

My ti-89 keep repeating the same function ! no matter what i click, it came out the same function. The only way I can do is take out the battery. Otherwise, it just keep showing me the fame function.It...


If the calculator keeps showing you the same function, you can open the Y= editor and erase the function. To turn calculator OFF, press Diamond key then ON.

Feb 19, 2010 | Texas Instruments TI-89 Calculator

1 Answer

TI 89 won't turn on


Try a hard reset if you're willing to sacrifice the contents of all RAM.

1. Make sure the batteries are installed correctly.
2. Press and hold the 2nd, Left, and Right keys.
3. Press and release the On key.

Jan 19, 2010 | Texas Instruments TI-89 Calculator

3 Answers

I'm an older student.....in my 50's. I am taking classes to complete my bachelor's degree in nursing, something I should have done 30 years ago. Better late than never, right? Anyway, I found my son's TI...


Hi Anne,
here are some tips to use your TI 83 calculator. Patiently follows this:

  1. Press ENTER to find out the answer to an expression.
  2. Press 2ND before pressing a button to use the function in yellow above the button.
  3. Press ALPHA to enter in letters.
  4. Press 2ND before pressing Alpha to turn on Alpha lock, which will automatically use the alpha mode until you press a directional key or ALPHA again.
  5. Press 2ND and then hold up or down to adjust the screen contrast accordingly.
Advanced Instructions
  1. Press MODE to go to a menu that allows to change graphing modes, degree modes, and notation modes among other things.
  2. Enter in a number then press STO> then enter in a letter and hit enter to store values in variables.
  3. Press Y= and enter in a function and then press GRAPH to view it. If you are having trouble viewing it, press WINDOW and adjust the graph's window.
Thanks,

Cherile

Aug 30, 2009 | Texas Instruments TI-83 Plus Calculator

1 Answer

TI-84 Plus calculator without ~ | or y keys


type 15 then click a button that looks like this^. then 365. Then hit enter. it is like a normal clcutor except with more function. Sometimes you need to use the 2nd and the alpha button to do some functions.

Jan 17, 2009 | Texas Instruments TI-84 Plus Calculator

1 Answer

TI 89 problem


Try doing a hard reset (hold simultaneously Left + Right + 2nd + On). If it just isn't wanting to display properly, but does turn on, that might help. I think you can do the same thing by taking the four AAA's out and the spare CR1616/CR1620. Otherwise, the battery acid probably ate one of your components and it's time to repair/replace your handy-dandy.

Oct 26, 2007 | Texas Instruments TI-89 Calculator

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