Question about Texas Instruments TI-84 Plus Calculator
New batteries but will not turn on. had to buy son a new one for test tomorrow. what can i check. it worked yesterday.
First of all, and I mean no offense here, check that the batteries are inserted correctly, respecting the polarity +-+-. The flat part (bottom) of the battery is the one that sits on the protruding helix-like electrical terminal. Inside calculator, there is polarity diagram.
When you change batteries, the display contrast may become too dim (too light) for the user to see anything. In that case, it can be adjusted.
Adjusting the screen contrast. Here is how to do it.
There is a key labeled 2nd. It is blue on the TI84Plus, and yellow/orange on the TI83Plus.
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Posted on Dec 11, 2009
Testimonial: "Thank you so much. I followed the steps you provided and it works great. Hopefully Walmart will take the other back. Thanks again!!!"
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Posted on Jan 02, 2017
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