How to change the Brightness and Contrast Settings on Casio Classwiz fx-991EX Calculator

Описание к видео How to change the Brightness and Contrast Settings on Casio Classwiz fx-991EX Calculator

In this video I will show you how to change the brightness on a Casio classwiz series calculator. This video will show you how to make the calculator display brighter or darker increasing or decreasing the contrast for ease of use. This method works for all classis series calculators including the Casio Classwiz fx-570ex and fx-991EX.

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