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Full Version: how to run keyboard test on HP-19BII?
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Anybody out there know how to run the keyboard test on a 19BII? I thought it would be the same as the keyboard test on the 18C but when I tried running it it gave a fail message.

While holding down the "EXIT" key, turn the calculator on. Then the usual routine, starting with the left keyboard. Complete the left, before moving to the right keyboard.

Thanks! Tried it just now and it works great, how'd you figure it out? :)