Question about Casio CFX 9850GB Plus Calculator
You can increase the contrast.
Press [MENU]. Use arrows to select [CONT] icon. Press [EXE] . Press arrow down to [CONTRAST]. Use + or - to adjust. You can also adjust color individually, or press [F1] to set the factory default.
If all this does not improve the display, you may have to install fresh batteries (main batteries).
Hope it helps.
Posted on Sep 21, 2009
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Posted on Jan 02, 2017
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