Question about Texas Instruments TI-89 Calculator

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I spilt just a little water on my calcultor (ti-89) i opened the back of the battery and they had small droplets on some of the batteries. It turns on but when ever I try to type something it types the wrong keys

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  • Texas Instru... Expert
  • 264 Answers

Try to solve this problem on this ways:

1. By
first, replace 4 AAA batteries.

2. If that does not help replace a small lithium battery. Its so called back up
battery

Posted on Jan 19, 2013

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Posted on Jan 02, 2017

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FirePhantom
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SOURCE: My TI-89 cant do simple calculations.

You have to set how the calculator handles numbers. To do this follow these steps: 1. Press the 'MODE' button. This brings up the calculator's main settings page. 2. Scroll down until you reach a field titled 'Exact/Approx...'. This is the setting for how the calculator handles numbers, whether it will show the exact answer (which is usually in fraction format) or whether it will show an approximate number (which will be in decimal format). 3. Press the right arrow which will bring up the options for that setting. You must now choose between three ways of handling numbers: -'1:AUTO' will determine which type of answer the calculator will give based on what numbers you want it to calculate (e.g. if you want an answer in decimal format just add a decimal somewhere in your problem). -'2:EXACT' will automatically display all answers in either whole number format or in fraction format. -'3:APPROXIMATE' will automatically display all answers in decimal format. 4. After you have selected one of those options press enter one more time to get out of the 'MODE' dialogue and return to the 'HOME' screen. Now try a problem and see what happens. Personally I like using 'AUTO' because then I don't have to keep returning to 'MODE' when I want either or. Hope this helped, I had the same problem when I first started using the TI-89.

Posted on Oct 07, 2007

  • 2 Answers

SOURCE: ti-89 titanium SIN!!!!!

The answer that you have received in actuality is correct. However, it is in exact form when the answer that you were looking for was an approximation (decimal form) answer. To achieve this all you have to do is hit the alpha button (the yellow button with a diamond in the center) and then enter which will give you your desired answer :-)

Posted on Jan 15, 2008

Flortzweich
  • 8 Answers

SOURCE: TI-89 Won't Turn On

Please don't get your hopes up, but perhaps something in the following few suggestions will work:

For the TI-89 Family, TI-92 Family, and Voyage™ 200:

  1. Adjust the contrast by pressing and releasing the Diamond Key key followed by pressing and releasing the [+] key; repeat as necessary. To adjust or lighten the display, use the [-] key.
  2. Users of the TI-89 Titanium or Voyage 200 should see the following case before performing the following reset procedure to prevent the loss of valuable Apps.
    On the TI-92 family or Voyage 200, hold the [2nd] key and the [hand] key, then press and release the [on] key. On the TI-89 family, press and hold the [2nd] key, left arrow, and right arrow; then press and release the [on] key. This should reinitialize the operating system, in which you should see a progress bar filling on the screen.
  3. Remove one of the AAA or AA batteries. Press and hold the [APPS] key, and while holding the [APPS] key, replace the battery and turn the unit on. TI-89, 92 Plus, or Voyage 200 users should see "Press I to install code...", and should press the [9] key. The calculator should then say, "Waiting to receive...". TI-89 Titanium users should see "Waiting to receive..." or "Waiting to received OS...". You will need to restore the calculator's operating system.
To reinstall the Calculator's operating system, take a look at the following TI site.

http://epsstore.ti.com/OA_HTML/csksxvm.jsp?nSetNumber=12089

I would hunt around on the TI knowledge base to see if there are some more useful suggestions if nothing above works. If I find any more info that could be useful I will post it.

Posted on Jan 30, 2009

  • 2 Answers

SOURCE: My TI-89 Calculator will not turn on.

The damage was battery corrosion. If you CAREFULLY take a damp(not dripping wet) rag and wipe the contacts of the corrosion you may have luck. The batteries just leaked, Very common especially for cheap "Heavy Duty" batteries. Alkalines seem to hold up better in a discharged condition. I hope this helps.Do wash your hands after the cleaning. A q-tip may also be of help. Just wet it and squeeze most of the water from it.

Posted on Aug 26, 2009

  • 102366 Answers

SOURCE: ti-89 won't turn on

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 at all. Turn the calculator on (or at least press the ON key). Press and release the 2ND key. Press and hold the Up-arrow key for a few seconds and see whether the screen becomes legible.

Posted on Mar 15, 2010

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1 Answer

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Next try. Remove one of the four AAA batteries. Press and hold (-) and ) keys as you replace the battery. Continue holding (-) and ) keys for five seconds before releasing. What happens now?

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Usually you will be able to re-install everything. And I would try uninstalling the program first then if that doen't work just pull the batteries out and put them back in or just press the reset button. Hope this helps. =)

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I'm having the same problem:(
I need to solve this urgently, i can't stand always being removing the batteries... please help me!!!

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Hey, if this is a ti-89, press green diamond button, then -, keep going and it soguld fix itself

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