Re: Help: HP97 key not working Message #7 Posted by Tony Duell on 24 Dec 2005, 5:13 a.m., in response to message #3 by db (martinez, ca.)
Actually, the HP97 (and other Topcat) keyboard is easy to dismantle fully. There are no heatstakes.
Once you've removed the bottom cover and the chassis plate, undo the 2 screws inside, one at each end of the keyboard. Unclip the display window from the top case, then take the whole lot out (it comes out from the outside, not down into the case. Bend the display cable as little as possible, it can be fragile.
Then take off the 7 screws on the back of the keyboard. Lift off the PCB. Don't lose the contacts for the slide switches. Take off the plastic spacer sheets and the gold-plated contact sheets. It's now obvious what to clean -- I use propan-2-ol (isopropanol) for this.
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