Question about Texas Instruments TI-85 Calculator
Adjust the contrast by pressing and releasing the [2nd] key followed by pressing and releasing the up arrow; repeat as necessary. To adjust or lighten the display, use the down arrow.
Posted on Jan 13, 2009
Press 2nd and then hold arrow up and it should work otherwise you may need new batteries, let me know if this doesn't work and I will try to figure out a different solution
Posted on Mar 22, 2008
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Posted on Jan 02, 2017
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