Question about Texas Instruments TI-83 Plus Calculator

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Dead calculator~! mine too!i havent use it for many mths and now it is DEAD. ): puttin in fresh batteries dont work either.

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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 09, 2010


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Posted on Jan 02, 2017


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Dead Battery?

Take out the batteries. Also take out the backup battery. It is a button battery beneath the screw in the battery compartment. Check the button battery volts with a multi-meter. After 5 minutes put the button battery back in and then the fresh batteries. It might work now. Alternatively take out a battery, then hold the clear button and put the battery back in. Then try to turn on. If it still does not work take out a battery press the del button and put the battery back in.

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Batteries are dead will not recharge

I do believe the company sells their own batteries for your product and even if they dont, you can always buy them yourself.First look on the back of your product and see what size you will need.

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Ti 84 plus cannot clear or divide HELPPP!

We had one that did the same thing. The retailer we purchased it from advised us to remove the batteries and put fresh ones in, then turn it back on. Ours resolved itself. Hope this works for you. If not, return it to the retailer you bought it from. Could be a lemon.

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1 Answer



if puttin it to the light makes it work than what you got is some dead batteries you need to replace . Check the back cover and see what batteries your calculator need to be replace it with; than go to the watch repair dept in walmart or meijers buy two batteries and have them take off the back cover and remove the old batteries and replace them with new put your back cover on and your calculator will work as good as new.

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1 Answer

Battery going dead

The battery regulator may not be functioning properly. At times it will send a charge to the battery and at times it won't. This is normal, but if it is not allowing the battery to receive current when it should then there is a problem. Another possibility is a loose connection in the wiring. I would check the connections first.

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Try this, hook up new battery and go to MODE and darken and lighten the screen.. do it ten to fifteen times. if that doesn't help, try hook up most left and most right's battery terminal to a DC supply at 4.5V. dont go above 4.5 it will fry your calc (it is design to handle 3V). now you are forcing extra juice into the dead LCD screen lines... and reapeat the MODE + darken trick. I fixed mine like that! Works! and remeber to leave it completely black(darkest) for a while to keep that dead line alive!

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1 Answer

First time used in months

Check the batteries polarity.
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