HP 21 keyboard problem Message #1 Posted by Yvan Van Hoof on 23 Nov 2010, 9:32 a.m.
Dear forum,
Reactivation of my 1975 HP21 is ok after getting new "standard" batteries.
BUT: on the keyboard the touch "4" does not want to work....
Any idea how to solve this...?
Best regards
Yvan
Kapellen, BelgiumHP 21 keyboard problem
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