Question about Texas Instruments TI-85 Calculator
I bought my TI-85 in 1995. I have not used it in several years. I just refreshed the batteries and noticed that the LCD display is faded I can't see anything but a faded blip on the display, so I know that it is on. I remember that back in the days I used to press the blue button and the UP arrow and that used to brighten up the LCD display, however that does not do anything to fix this problem. PLEASE ADVICE WHAT TO DO. Thank you!
I did a little research on the Texas Instruments Website and here is the answer.
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 14, 2009
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Posted on Jan 02, 2017
Tips for a great answer:
Remove all of the batteries including the round lithium battery for 5 minutes. After the 5 minute
period, reinsert all of the batteries and turn the calculator on. Adjust the contrast if necessary.
Just keep trying. Sometimes they can be a pain.
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