Question about Texas Instruments TI-30XA Calculator

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Texas Instruments TI-30XA Calculator Problem

I think the display on my calculator is broken b/c when I turn it on it says 7 rather than 0. as I punch in numbers 1-9 acroos the screen they become more clear and legible. could it be the ribbon cable from the circuitboard to the display? is it even worth wasting time over? I believe I can buy a new one for about $15 so it may be more trouble than its worth.

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Either battery is dying, or circuit board has gone, or connector cable loose.

You can replace battery by removing 6 screws at back of calculator, but cost of battery is around 40% of buying new TI-30XA for $10 from Amazon, Staples or elsewhere.

I've used TI-30XA's for years, batteries usually last 2-3 years, then I buy new calculator. The one time I tried to replace battery, fading display still problem, so circuit board had gone bad.

So you could try battery replace and may be OK, but also may be waste of time and $$

Posted on Dec 31, 2008

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My TI-30XA won't turn .003 into a fraction. Any help?


The TI-30Xa will only handle fractions with denominators less than or equal to 999. .003 is 3/1000 in simplest terms, with a denominator larger than 999. Thus the calculator cannot display it as a fraction.

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The examples below will demonstrate how to use both keys:

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If you mean e^(7/2), then press (7 / 2 ) 2nd [e^x] =

If you mean (e^7)/2, then press 7 2nd [e^x] / 2 =

Dec 02, 2010 | Texas Instruments TI-30XA Calculator

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Try to locate the screw on back side for the battery ..remove them then pull out the battery then insert again after some time ...

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Using Cos/Sin


Calculator turns on in "degree" mode. Just enter angle in degrees then press "SIN", "COS" "TAN".

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Get a new instruction booklet by download from TI website

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Ti-30xa


Display has gone....you will have to buy a new calculator, fortunately the TI-30XA is only $10-$15!!

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