Question about Texas Instruments TI-85 Calculator

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It just quit working even though the batteries are good

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TI calculators have an annoying habit of dimming the screen 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.

Posted on Mar 15, 2010

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