HP-15C strange key click sound



#2

Couple of keys sin, cos and to the lesser extent 1 and 2 have a strange click sound after that key is released. It is like the key on its way up drags some stiff plastic sheath which, after being released snaps and makes the click sound. Is there anybody else who had the same experience and knows or have an idea what it is and how it can be fixed. Have on mind that I never opened one of these calcs so some tips would be appreciated.


#3

I've never heard such a sound, but a possibility is that some of the heat stakes that fix the keyboard PCB to the calculator front have become loose, and what you're hearing could be the PCB moving.

I'd open the calc and check. It's quite easy to fix, actually, the plastics that came off would be floating around inside the case...

Good Luck! Victor

#4

I have found the differences, in the keyboard's clicking sound, are attributed to changes in ambient temperature.


Possibly Related Threads...
Thread Author Replies Views Last Post
  Strange HP 25 Problem (Repair) Onur Ilkorur 5 1,667 12-06-2013, 05:13 PM
Last Post: Onur Ilkorur
  Strange Battery Icon during updaate of Prime Firmware. Harold A Climer 7 2,023 12-05-2013, 04:40 PM
Last Post: Michael de Estrada
  HP Prime: Sound and Music Alberto Candel 4 1,025 11-28-2013, 10:08 AM
Last Post: Alberto Candel
  HP Prime - EEX/X/Toolbox-key suggestions bluesun08 2 952 11-07-2013, 06:15 PM
Last Post: bluesun08
  HP PRIME : strange behavior when trying user key capability Damien 12 2,403 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 1,214 10-29-2013, 06:18 PM
Last Post: Joseph Ec
  Roll-down key in HP-15C Steve Ross 6 1,417 10-15-2013, 04:12 AM
Last Post: Nick_S
  HP Prime function APP - Strange limitation ! :o( dg1969 2 948 10-04-2013, 12:10 PM
Last Post: dg1969
  HP41CX: Strange serial #... Stephan Matthys 1 705 09-13-2013, 01:38 PM
Last Post: Stephan Matthys
  HP-15 LE Key repair question Namir 2 929 06-10-2013, 10:42 PM
Last Post: Namir

Forum Jump: