Question about Texas Instruments TI-81 Calculator

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I have an older texas instrument Ti-81 that is in good condition. I have replaced the batteries, but the calculator will not turn on. What can I do?

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  • kakima Sep 16, 2010

    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.

    Does this do any good?

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Having gone over a month without a response to my query, I assume the suggested screen adjustment solved the problem.

Posted on Oct 22, 2010

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1 Answer

TI-81


Adjust the screen contrast. Turn the calculator on. Press and release the 2nd key. Press and hold the down-arrow key to lighten the screen. If you go too far, use the 2nd and up-arrow keys to darken it.

Aug 08, 2012 | Texas Instruments TI-81 Calculator

1 Answer

TI-81 when turned on, screen is totally black, can perform calculations & barely see results on screen. is this a battery problem?


Adjust the screen contrast. Turn the calculator on. Press and release the 2nd key. Press and hold the down-arrow key to lighten the screen. If you go too far, use the 2nd and up-arrow keys to darken it.

Aug 08, 2012 | Texas Instruments TI-81 Calculator

1 Answer

Good Day, I have replace the batteries in my TI-81. But the calutator will not turn on. What else can I do? Martina Jacobs


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.

Sep 15, 2010 | Texas Instruments TI-81 Calculator

1 Answer

I replace all the batteries and have a blank screen, is there a way of resetting the unit or 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 release the 2ND key. Press and hold the Up-arrow key for a few seconds and see whether the screen becomes legible.

Sep 09, 2010 | Texas Instruments TI-81 Calculator

1 Answer

My TI-81 screen is so faint. How do I make it


Turn the calculator on. Press and release the 2ND key. Press and hold the up-arrow key to darken the screen/increase the contrast.

Obviously, to go the other way you use the down-arrow key instead of the up-arrow.

Apr 23, 2010 | Texas Instruments TI-81 Calculator

1 Answer

I have a TI-81 that stop working, I installed the


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.

Mar 16, 2010 | Texas Instruments TI-81 Calculator

1 Answer

I need to know how to convert decimals to fraction on my TI-81 texas instrument.


Unfortunately the TI-81, unlike later models, does not have this capability built-in. You'll have to find and load a program to do this.

Oct 23, 2009 | Texas Instruments TI-81 Calculator

1 Answer

Grandaughter gave me her TI-81. I replaced all


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.

Sep 09, 2009 | Texas Instruments TI-81 Calculator

2 Answers

My texas instruments ti-30Xa doesn't turn on!


It is battery powered. You simply need to replace the battery. This website may help you.

http://www.calculatorsource.com/ti-30xa.html

Aug 03, 2009 | Texas Instruments TI-30XA Calculator

1 Answer

Took a battery out, put it back in and it wouldn't turn on.


Try replacing both the AAA batteries and the back-up batteries. This should probably fix the problem.

Feb 10, 2007 | Texas Instruments TI-81 Calculator

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