hp 80 keys don't respond well


I have hp-80 and some of the keys on top row (FV, PMT) don't respond. Every now and then these key function but mostly don't. What would be best way to fix this problem? Thanks in advance for any tips.
- Irfan


Most of what you need to know shold be in http://www.hpmuseum.org/howtohp/howtohp.htm. That should get you started.

In addition, I have found that using a plain strip of paper (instead of sandpaper) to clean very bad key contacts can be a valid alternative. It's potential for damage might be less than the sandpapaer's.

Cheers, Victor


If you use a piece of cloth impregnated with isopropilic alcohol it will work for sure. And you canĀ“t damage the metal part (take care with the sandpaper).

Possibly Related Threads…
Thread Author Replies Views Last Post
  Broken keys on HP Prime? Tarcisi C 0 1,448 12-10-2013, 05:59 PM
Last Post: Tarcisi C
  HP 50g switching two keys in the user keyboard Sean Freeman 9 3,903 12-05-2013, 11:44 AM
Last Post: Mark Puscas
  HP-80 History, Design and Interesting Facts BShoring 1 1,316 11-30-2013, 08:50 AM
Last Post: Xavier A. (Brazil)
  Another Prime mystery - templates don't work anymore Michael de Estrada 2 1,312 11-02-2013, 11:34 AM
Last Post: Michael de Estrada
  HP-80 Teardown with pictures Max Stone 10 3,759 10-24-2013, 09:10 PM
Last Post: Walter B
  HP-80 CHS Exponent Curiosity Max Stone 4 1,846 10-22-2013, 02:39 PM
Last Post: Max Stone
  [HP-Prime] off-center [0], ... [9] num keys CompSystems 1 1,239 10-18-2013, 10:44 PM
Last Post: Han
  HP Prime - Home and CAS keys BruceH 0 936 10-15-2013, 07:19 PM
Last Post: BruceH
  HP Prime Tip: Setting Up User Keys Eddie W. Shore 2 1,515 09-27-2013, 09:53 PM
Last Post: Eddie W. Shore
  Prime Updates (don't get excited yet) Tim Wessman 3 1,495 09-26-2013, 06:18 PM
Last Post: Han

Forum Jump: