Re: All rightmost keys on HP 22s not working. Message #3 Posted by Lincoln R. on 30 Nov 2009, 11:59 p.m., in response to message #1 by gerry martinez
Try pressing down on the faceplate (firmly but not so hard as to dent it or break the plastic) below the LCD but above the keys, and see if that makes the offending keys work again. If it does, you need to disassemble the calculator, and add some extra padding behind the keyboard contacts. Refer to the excellent instructions here on how to open the unit, and what you need to do to make the keys work again: http://www.hpmuseum.org/guest/brogpion.htm
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