Question about Sharp EL-531VB Calculator

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Cannot type numbers etc

I cannot type any numbers into the screen. how do i get rid of the RAD , the FIX sign and the upside down P?

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  • jim beckwith May 11, 2010

    how old is the calc?

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Hello,
Press the reset button on the back of the unit. As to the things you want to get rid off, if they are on the top of the screen, they are indicators, to let you see what mode you are using. Some will change when you chande operation mode. There is nothing you can do about it.
However if these symbols are in the center of screen , with numbers to there left (a different number for each) they may be part of the setup procedure. During the setup procedure you are expected to configure your calculator in the mode relevant to the calculations you intend to perform.
What is an upside down p ? Could it be just a b? (as in binary). That is a mode of operation.
Hope it helps.

Posted on Sep 20, 2009

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You cannot remove FIX, unless you replace it with another display MODE (SCI or NORM or ENGineering).

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You use the key combination [2ndF][DRG]. Every time you press the two keys in sequence it changes to the next angle unit. If your calculator is on RAD, you press [2ndF][DRG] once to change to Grads, and another time [2ndF][DRG] to change to degrees.
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try resetting it... Will probably rid you of your problem.

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You will need to reload all your programs, and while your at it you should probably update the OS from the TI site...

Good Luck
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