Posts: 441
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Joined: Apr 2008
It will not get better, only worse in that it may start to miss keypresses. It's easy to clean.
Back up your programs, remove the batteries* and covers and give the unit a bath in distilled water. Press all the keys while it is underwater. Let it soak for five minutes. Press all the keys again. Take it out, shake out all the water from the unit, change your bath water and repeat the process.
Shake it out really well, put it in a warm place to dry, keyboard side up. A small fan blowing over it will speed the process. Give it 24 hours. Put the batteries back in and it should be good as new.
* - Failure to remove the batteries will result in a dead, non-repairable calculator. Liquids and 48's don't mix well when batteries are in place.
Posts: 2,448
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Joined: Jul 2005
Hi Isabel,
I know it seems counter-intuitive to dunk a piece of electronic equipment.
But what Randy is not telling you (because he is being modest) is that he has done this many times berfore, and it worked. He has fixed a lot of calculators :-)
Best regards,
Bill
http://plattdesign.net