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Removing The Hard Case; Turning Power On And Off; Adjusting Display Contrast; Key Markings - Casio Fx-96SG User Manual [Page 4]

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My casio fx-CG 20 is very dim even when there is plenty of battery and the brightness is full too. Pls help i have a test tmr : r/calculators

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Removing The Hard Case; Turning Power On And Off; Adjusting Display Contrast; Key Markings - Casio fx-570ES PLUS User Manual [Page 4]