Question about Texas Instruments TI-89 Calculator
My screen is solid black as if the contrast is all the way up. I tried to lower it but it still doesn't work. If i gently press on the screen i can see the numbers i press in the background very faintly. I haven't used this calculator for about 4 yrs and there were no AAA batteries inside when i first tried it out. It hasn't been dropped or water damaged either. I put new batteries in it including the small circle battery under the screwed down cover and still no screen. What do you recommend i do?
Hey, if this is a ti-89, press green diamond button, then -, keep going and it soguld fix itself
Posted on Mar 10, 2008
Hey, my girlfriend tried this on a ti-84+, jab the contrast buttons repeatedly until the display goes back to normal. Might work for you too.
Posted on Feb 07, 2008
I had the same problem however, when I took out my back up battery it said "re-intalling" when I turned it back on and the screen was fixed. Im sure for a marginal price you might be able to send in your cal. to TI to get the screen replaced if its a problem with the LCD.
Posted on Feb 22, 2008
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Posted on Jan 02, 2017
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