Question about Texas Instruments TI-89 Calculator

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Does not turn on

I have a Texas instrument TI-92. I didn't use it for a long time. I put it without a battery. When I tried to use it now with new batteries, it will not turn on. How can I turn it on?!

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Posted on Jun 03, 2008


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1 Answer

TI 92 Turns on but has a black screen.

This is expected behavior when batteries are replaced and you don't need to reset the device, simply adjust the contrast more than you would think it should take.
See the answer to a similar question at When powered on the LCD screen is dark blue.

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My Texas Instrument TI 83 Plus will not 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. 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. If this doesn't do it, please reply to this post and we'll go on from there.

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TI will not come one with new batteries. Backup

Given a month without a response, I assume my suggestion worked.

Mar 08, 2010 | Texas Instruments TI-89 Calculator

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Ti 92 will not turn on

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.

Feb 01, 2009 | Texas Instruments TI-92 Plus Calculator

1 Answer

TI-92: Power loss while not in use.

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.

Dec 04, 2008 | Texas Instruments TI-92 Plus Calculator

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try to push the green diamond button once then use the plus or minus keys to change the brightness of the screen.

Sep 03, 2008 | Texas Instruments TI-92 Plus Calculator

1 Answer

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Hi my TI-92 that I bought at a garage sale will not power up after installing 4 AA and coin ( Brand New )batteries. How can I fix this problem. Thanks Ed

Jun 19, 2008 | Texas Instruments TI-92 Plus Calculator

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TI-92 Plus don't turn on

Your calculator's software is probably corrupt. I suggest you buy a new calculator

Apr 24, 2008 | Texas Instruments TI-89 Calculator

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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

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