Question about Texas Instruments TI-83 Plus Calculator

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Big problem I go to turn on the calculator but the screen will only show up sometimes and it will flash on qiuckly then turn off. I don't know if it was wrecked but I was wondering what you could do to make the screen appear and the calcualtor work. I have installed new batteries too. Thanks

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2 Answers

Re: Big problem - Texas Instruments TI-83 Plus Calculator Calculators

That is the exact same problem for me!

Posted on Jan 15, 2008

Re: Big problem

SAME PROBLEM FOR ME! sometimes it shows a bunch of wierd random numbers and symbols and it wont let me do anything but then it goes away and wont turn back on .. have installed new batteries and tried the one battery reinstall trick w/ the clear and on buttons.. no luck PLEASE HELP

Posted on Jan 15, 2008

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Flashing asterick in lower left of screen; ever since will not correctly calculate PV or PMT

I believe there are two separate issues here.
The asterisk in the lower left corner of the screen is the low-battery indicator. Put in a fresh set of batteries and that will go away.
As for not getting the correct results, are you sure you have all the modes set correctly? Could you post a sample problem, with the results you get and the results you expect to get?

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Ti89 responds to resets but nothing else

If the calculator is several years old it may be showing its age.
There is a connection point between the keyboard and the display
that over time loses its efficiency. Try this: press a number key
and at the same time apply pressure with your thumb or index
finger to the region of the calculator just below the display.
If you press hard, the number may just show up in the display.
This is a test for the tightness (or electrical efficiency) of the
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Another way to make this test is to twist the calculator while
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Sometimes the effect is such that the keys on one side or the
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This can be repaired by a good electronic technician if you
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Hi, I need to graph with my TI 83 but I've run into a problem when trying to enter the (x,y) points that need to be plotted. From the beginning, I push "STAT" and highlight where it says...

Turn calculator on. Press the STAT button. In the new screen that displays, press 5:SetUpEditor, then ENTER. The deleted lists will be restored. Any data that was in them will not be recovered.

Jul 26, 2011 | Texas Instruments TI-83 Plus Calculator

1 Answer

My touch screen is not working. after a long time

if you kept the batteris inside for long time it could be that they leaked inside when it happend there is some damage inside.
update for the OS sometimes helps

i fix this calculators

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1 Answer

I turn on the calculator and the screen just shows me this like big dark box that fills the screen and thats all it does.

After you change battery the screen contrast often changes: it can become too light or too dark (your case).
To lighten screen
  1. Press 2nd key and RELEASE IT.
  2. Press and HOLD the downArrow.
  3. Keep pressing the arrow until the screen is light enough.

Jan 13, 2010 | Texas Instruments TI-83 Plus Calculator

1 Answer

The calculators screen is not fulling showing the


If it is too dark
Try reducing the contast as follows
1.Press [2nd] key and release it
2.Press [DownArrow] and release it
3. Keep repeating the sequence until contrast is adequate.

If it is too light increase contrast
To increase contrast Do the same but press [UpArrow] instead of [DownArrow]

Hope it helps

Sep 07, 2009 | Texas Instruments TI-83 Plus Calculator

1 Answer

My calculator works fine but recently when I use it the screen is very light. I already have it on maximum darkness and sometimes it works but occasionally the screen flickers?

When screen is at maximum darkness you see almost nothing.

Here how you change screen contrast (just in case another readed does not know how to do it).

To increase contrast:
1. Press [2nd] key then release it
2.Press [UpArrow] key then release it.
3. Repeated steps 1 and 2 in sequence, until contrast is dork to your taste.

To decrease contrast:
Follow the algorithm (a very big word for procedure) above substituting [DownArrow] for [UpArrow].

Hope it helps.

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1 Answer

My Casio fx-85v Super - fx solar power calculator shows a erratic

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