Question about Texas Instruments TI-89 Calculator
Won't turn on. Batteries are fine, but have no idea wats wrong. wondering if theres a store that fixes ti-89s located in the atlanta area?
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. 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.
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Posted on Jul 15, 2010
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Posted on Jan 02, 2017
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