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HP 21, key problems
02-06-2018, 04:38 PM (This post was last modified: 02-06-2018 04:42 PM by Matthias D..)
Post: #5
RE: HP 21, key problems
Many thanks for your replies.
The keys don’t feel broken. I think, I should clean the contacts under the keys.
But isn‘t disassembling of keys and pcb/contacts a little bit dangerous?
And how to assemble it afterwards?

Again: Thank you.
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Messages In This Thread
HP 21, key problems - Matthias D. - 02-04-2018, 05:17 PM
RE: HP 21, key problems - teenix - 02-04-2018, 08:03 PM
RE: HP 21, key problems - BobVA - 02-05-2018, 02:04 AM
RE: HP 21, key problems - PANAMATIK - 02-05-2018, 07:05 AM
RE: HP 21, key problems - Matthias D. - 02-06-2018 04:38 PM
RE: HP 21, key problems - PANAMATIK - 02-06-2018, 05:08 PM
RE: HP 21, key problems - Matthias D. - 02-08-2018, 06:07 PM



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