Question about HP 48gx Calculator
The following testing procedure valid for the HP 48G should work for the HP48GX. If any the tests fails the calculator requires service.
Make the calculator perform a
The self test will continue repeatedly until you perform a
If you do not see IROM OK and IRAM OK, the calculator requires service.
If the above procedure is successful, you may want
to test the keyboard.
If you follow the proper sequence and a hexadecimal number appears after pressing a key, the calculator requires service.
Hope it helps.
Posted on Nov 07, 2009
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Posted on Jan 02, 2017
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