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Posted on Jan 02, 2017
You should perform the dagnostic tests.
The following procedure valid for the 48G should work for the HP48GX.
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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