Question about Texas Instruments TI-92 Plus Calculator

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Ti 92 will not turn on

I have a ti 92 that was not used (my wife used it) for several years. I got it out and put new batteries in and nothing happens. Is it trash or is there hope?

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  • uowe192116 Apr 10, 2009

    TI 92 not in use for 3 years ..will not turn on replaced batteries

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Hello,
Adjust the screen contrast
Press and hold [diamond] button (green near th [ON] button).
Press [+] to increase the contrast and [-] to decrease it.

Hope it helps.

Posted on Sep 02, 2009

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Hello,
You may be right. I have left batteries in my TI92 for years without using it. When I put in fresh batteries, it came back to life. The backup battery of my TI92 (bought a dozain years ago) has not been changed yet.

Hope it helps.

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Hello,
I would not let it lie to rest yet. Play again with the contrast: Lower it so
Press [diamond] key the green one beteen the [ON] and [2nd].
If that does not work it may be because by removing the batteries while the calculator is [ON] you might have pressed inadvertently a button on the keyboard, and that can lead to erasure of the OS. Besides, you cannot change all batteries at the same time:Backup batterie should be in and in good working order when you change main batteries. Similarly, main batteries should be in place when you change backup batteries.

There may yet be a chance to get it back to life and that is to install the operating system through a computer.
You need the cable (TI SilverCable from Staples or Office Depot).
You need to download The TI Connect Software from education.ti.com and install it on the computer.

After installing the software on the computer, run TI connect, then connect the calculator to the computer, and press the [ON] key. Usually it turns on as soon as you plug the TISilvercable into the calculator port.

In the TIConnect window there are several icons (TI device explorer, TI Screen Captrure ) You may try to use them to see if the calculator responds. If it does you calculator is not totally damaged).
Whatever the results of the foregoing actions, you should try to install the OS.

At the top of the TIconnect windows there are 4 round buttons (2 green, 2 gray). Click the Update button. (you must be connected to the Internet) If it works, I congratulate you. If it does not, I have no idea what you might do next.

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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.

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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.

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