Question about Texas Instruments Office Equipment & Supplies
...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. Remove one of the AAA ...
...brightness, held DEL while reinserting batteries, replaced batteries but nothing changed hi bckyshldn, Did you remove all of the batteries including the round lithium battery for 5 minutes. After the ...
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