Re: 48GX button is stuck Message #4 Posted by Jeff O. on 4 Apr 2007, 8:02 a.m., in response to message #1 by Natan Samuels
Not sure if this will be much more useful than Dave's comment, but, since none of the experts have chimed in, I'll tell you what I know.
The hp48 keyboard is formed as bunch of domes in a plastic sheet. When you press a key, the dome below it collapes and a conductive coating on the bottom of the dome makes contact with a circuit below. It sounds like you have a permanently collapsed dome, which is most likely not repairable. If you want to try, a detailed description of how to open the 48 can be found by clicking on this link. For repair tips and a description of keyboard construction, click here.
Or maybe the key is just stuck down with some gunk, in which case rinsing and/or ultrasonic cleaning with distilled water has been discussed here a few times in the past, search the archives.
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