display window does not show anything
my Ti-92 turns on but nothing comes up
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try to adjust the contrast by pressing and releasing the Diamond key followed by pressing and releasing the [+] key; repeat as necessary. To adjust or lighten the display, use the [-] key.
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Quando ecrã está todo preto temos de ajustar o contras-te pressionando a tecla dom o símbolo do Diamante e pressionando nas teclas [+] ou [-]!
