Question about HP 48gx Calculator
I use my HP48GX with a COGO Card for Land Surveying. Recently the unit has begun to run really slow. I've cleared most of the old stored data I no longer need, replaced the batteries and reset the unit itself. However, none has helped to restore it to it's regular operating speed.
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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Posted on Jan 02, 2017
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