Question about Casio fx-300ES Calculator
I tried changing the batteries and that doesn't help. When I click "on" it does nothing. Any help?
Thanks in advance.
2 causes for this kind of problem:
1. lose battery contacts
2. poor connection on its components on the motherboard. (needs to resoldered)
Posted on May 27, 2008
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Posted on Jan 02, 2017
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prefer "Do nothing" while closing the lid. Although this is real
simple, few of us might not know it. I
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