Question about HP 48gx Calculator
You can reset the calculator:
Turn the back of the calculator towards you. Extract the top left rubber pad on the back of the calculator and use a paper clip to press the Reset button. If that does not restore the calculator to health, 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.-
There is an HP customer self repair (CSR) which you can contact. On the site it is sais that the service is available for products under warranty or on contract. but you have nothing to lose by contacting them. Here is the link to the web site
You can also try this site. They do repairs on most models, except the newer ones.
Posted on Nov 09, 2009
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Posted on Jan 02, 2017
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