Question about Texas Instruments TI-89 Calculator

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My Ti 89 won't turn on an I put brand new batteries in

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TI calculators have a habit of dimming the screen contrast when the batteries are changed so that it appears as if the calculator isn't turning on. Turn the calculator on (or at least press the ON key). Press and hold the diamond key and press the the + key to darken the screen. If you go too far, use the diamond and - keys to lighten the screen.

If this doesn't do it, please reply to this post and we can try more drastic measures, though they may cause the loss of memory.

Posted on Mar 23, 2011

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1 Answer

Hi, My TI 89 calculator just stopped working. I can't turn it on; I changed battery to brand new ones, but still dead. What can I do?


TI calculators have an annoying habit of dimming the screen when the batteries are changed so that it appears as if the calculator isn't turning on. Turn the calculator on (or at least press the ON key). Press and hold the diamond key, and press and hold the + key for a couple of seconds to see whether the screen darkens.

If this doesn't do it, please reply to this post and we can try something else.

Jan 29, 2011 | Texas Instruments TI-89 Calculator

1 Answer

My TI-89 Titanium won't turn on!


A hard reset will clear all memory and should give you back control of the calculator.

1. Put the batteries in the calculator.

2. Press and hold left arrow, right arrow, and 2nd keys.

3. Press and release ON.

Jan 15, 2010 | Texas Instruments TI-89 Calculator

2 Answers

TI-89 won't turn on, even w/ new batteries


Try a hard reset:

Press and hold the 2ND, Left, and Right keys.
Press and release the ON key.

Be aware that this will clear all RAM.

Oct 04, 2009 | Texas Instruments TI-89 Calculator

1 Answer

When I turn the switch on, ti-89 titanium does not turn on.


If you connect calculator to computer using Ti connect device explorer you might be able to see what files are on the calculator. I don't know if you downloaded from the web but, 3rd party programs and shells tent to miss up the calculator. This would able you to delete out possible problems which could be re installed later.

Sep 22, 2009 | Texas Instruments TI-89 Calculator

1 Answer

New, barely used 89 drains batteries quickly


Because the games programs are writen badly and are running even when the calculator is off. Battery life will be extended if you get rid of the games.

Apr 14, 2009 | Texas Instruments TI-83 Plus Silver...

1 Answer

Ti 89 Titanium Battery use


I have a regular TI-89 (HW2)...have had it for 6 or 7 years. Suddenly it's doing the same thing. I have to put new batteries in it every week or so. I even replaced the backup Li-Ion battery. I'm getting really tired of buying new batteries but don't want to go shell out 100+ for a new one.

Anyone have anything on this? I'm having trouble finding much on this...

Oct 01, 2008 | Texas Instruments TI-89 Calculator

1 Answer

My TI-89 Dies out fast


If you download games and some third party software can be running all the time draining your batteries. Some of the APPS with Ti 84 will do the same thing. I'd try and find the problem software and delete it.

Apr 02, 2008 | Texas Instruments TI-89 Calculator

1 Answer

HELP!!


Well, in most calculators, the action of taking out the backup battery practically clears the whole thing. Memory, everything. I myself have a Ti-89 and have not yet experienced this problem, but I have on an older Ti-82 and removed the backup battery and the whole thing is dead now, or at least nothing happens when I turn it on, even after replacing the batteries again. If you still have the manual, I would check out the troubleshooting. If you don't have it, try to find it online. And if you have done both of these things, try getting hold of technical support through Texas Instruments.

Jan 30, 2008 | Texas Instruments TI-89 Calculator

16 Answers

My TI -89 won`t turn off


Solution that worked for me, taken from "Ti-89 titanium wont turn off":
Best Solution posted on Mar 05, 2008 Guest
Rank: Apprentice
Rating: 0%, 0 votes
I was able to fix the problem nut it requires several steps and only offers a temporary fix (untill the calculator is reset then it needs to be done again).
1. Press F5, then Dimond (symbol on buttion) then "Clear"
2. Press "alpha" then "S"
3. Press "0" dont mess with anything else here
4. Press "2nd" then "Quit"
Now you can turn it off but are missing the bottom text (rad,auto, etc...) to fix
6. Press "Mode" change radian to degree then "enter"
Now the text is displayed showing the mode.
7. Set the mode back to radian by reversing step 6.
Thats it I dont know how to get the bottom line back though...

Oct 25, 2007 | Texas Instruments TI-89 Calculator

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