HP 48GX ON key



#8

Hi, I have a HP 48GX that helped me throw collage so you must have an idea how please I’m with this calculator. For several reasons I had to put it away for a couple of years and now that I need it I found that my ON/CANCEL key isn’t working. I have already try the key test and failed. The only way I can make it work is If I apply a lot of pressure and in some times work and others doesn’t. I leave in Mexico and HP had told me that they do not have services for calculators. I believe that if I open it and clean the pad the problem is going to be solve, but… I don’t know how to open it or if it’s a good idea. Can some one help me. GRACIAS!


#9

Good afternoon Marco. Have you tried to adjust contrast on calculator? Maybe it reset itself when sitting so long and need to adjust contrast. I believe I remember reading that if you turn on and then hold ON and + (plus key) it make contrast darker, and ON and - (minus key) it make it lighter.

Also, stupid question, but have you tried new battery? Does the ((*)) stay lit on the display?


#10

Vincze,

Its not the contrast, actually is in excellent setting (you are correct ON + plus key it make it darker and the other way around). The problem is that some times it works fine the button (ON/CACEL) and some time it doesn’t respond at all. I haven’t figured it out if a lot of pressure makes or not a difference. Batteries are new and the clac except this problem is working fine. Thanks for your reply.

#11

Try gently pressing on the faceplate just above the "F" key, and then press "ON". If this makes it work, then do a search of the Archives here to learn more about it.

regards,

Bill


#12

Bill,

It doesn’t make any differences. Thanks!

#13

Hello Marco,
have a look at this thread too...

Greetings,
Massimo


#14

Prego Massimo,

It was very helpful, know I have to find courage to open my HP. I will let you know how did it went.


#15

Ciao Marco,
actually you don't have to open it up: just check if the metal bezel around the ON key is loose or bent so that it stucks the key down.

Greetings,
Massimo

Edited: 10 Aug 2007, 1:19 p.m.


Possibly Related Threads…
Thread Author Replies Views Last Post
  HP Prime - EEX/X/Toolbox-key suggestions bluesun08 2 1,563 11-07-2013, 06:15 PM
Last Post: bluesun08
  HP PRIME : strange behavior when trying user key capability Damien 12 4,027 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 1,965 10-29-2013, 06:18 PM
Last Post: Joseph Ec
  Roll-down key in HP-15C Steve Ross 6 2,363 10-15-2013, 04:12 AM
Last Post: Nick_S
  HP-15 LE Key repair question Namir 2 1,499 06-10-2013, 10:42 PM
Last Post: Namir
  HP calculators: origin of prefix key labels f and g M Habl 9 2,936 11-21-2012, 08:29 PM
Last Post: Gerson W. Barbosa
  HP Key Notes Programmes? Michael Lopez 0 967 07-02-2012, 09:26 AM
Last Post: Michael Lopez
  HP-97 Key Contact Repair Adventure LHH 0 1,018 06-09-2012, 05:26 PM
Last Post: LHH
  HP 9826A key switches David Ramsey 3 1,415 01-04-2012, 07:29 PM
Last Post: David Ramsey
  HP-15LE: Anybody else see double key registrations? BobVA 5 1,861 11-13-2011, 06:48 AM
Last Post: Jan

Forum Jump: