hp-21 key malfunction



#3

The battery pack leaked in my hp-21.I've clean the calculator put new batteries in.The calculator works well
when I test it outside the beige casing, but when I put all
the thing together the blue, rcl and clx key don't work.
(The battery pack fit real tight in the casing. It seems wider a bit because i've pry the old batteries out.)
Hope someone has a clue on this.
Thank you
Marc Pépin


#4

Hi Marc,
try a cleaning with printed board solder flux cleaner like
Electrolube "Flux Clean" or contact cleaner like Chemitronics "Pow-R-Wash" without warranty.
Fortunatly, if it's ok afeter cleaning, protect the contacts with Electrolube "contact Grease" and remove all Nicad battery when calculator is not used
Regards.
Philippe


Possibly Related Threads...
Thread Author Replies Views Last Post
  HP-97 Printer Malfunction Dan Lewis 17 1,749 11-25-2013, 10:18 AM
Last Post: Thomas Chrapkiewicz
  HP Prime - EEX/X/Toolbox-key suggestions bluesun08 2 552 11-07-2013, 06:15 PM
Last Post: bluesun08
  HP PRIME : strange behavior when trying user key capability Damien 12 1,328 11-03-2013, 11:02 AM
Last Post: Joe Horn
  HP PRIME: How to use [a b/c] key from a program Joseph Ec 4 679 10-29-2013, 06:18 PM
Last Post: Joseph Ec
  Roll-down key in HP-15C Steve Ross 6 792 10-15-2013, 04:12 AM
Last Post: Nick_S
  HP 21 - How to troubleshoot? Adam Vaughn 13 1,055 10-02-2013, 09:40 AM
Last Post: Adam Vaughn
  HP-15 LE Key repair question Namir 2 463 06-10-2013, 10:42 PM
Last Post: Namir
  magnetic strip malfunction aurelio 7 805 01-14-2013, 12:25 AM
Last Post: aurelio
  HP calculators: origin of prefix key labels f and g M Habl 9 944 11-21-2012, 08:29 PM
Last Post: Gerson W. Barbosa
  HP Key Notes Programmes? Michael Lopez 0 250 07-02-2012, 09:26 AM
Last Post: Michael Lopez

Forum Jump: