Re: Repairing an hp 32sii Message #2 Posted by Jeremy on 7 Mar 2003, 9:38 p.m., in response to message #1 by John MacLean
If an entire row of keys isn't working, you might want to look for a severed trace on the circuit board. That would be my bet. It is unlikely, IMO, that dirty contacts would blast an entire row of buttons.
I recently disassembled and repaired a vintage Unisonic 888 calculator which I bought on eBay for $0. (Since it was not the one I won and since it didn't work 100%) Whoever had taken it apart before me didn't quite get the keypad back together properly, and I can see why. It was an absolute nightmare since each key had a spring, a contact bar, etc. Getting everything coordinated properly took a lot of patience, steady hands, some glue, and masking tape to hold the thing upside down while I worked on it. Anyway, good luck.
-Jeremy
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