From: james.harris.1@gmail.com   
      
   To my surprise, I find I have a Pet which works - all apart from the   
   keyboard, that is. So I have a query about fixing it.   
      
   So far, I have removed the keyboard and found that the PCB contacts work   
   if shorted with something conductive. Therefore the problem is with the   
   little black pads that a keystroke presses against the PCB. I have tried   
   these things:   
      
   * cleaning with isopropyl alcohol   
   * cleaning with contact cleaner   
   * abrading with a pen eraser   
      
   The latter was not really effective as there is too much give in the   
   part of the key which supports the pad so I would say that the operation   
   failed to abrade the pad successfully.   
      
   Where I am now is that a few pads work but most do not. I have tried   
   putting two meter test prods on the pads to measure resistance and found   
   that some only become conducive with significant pressure. I guess that   
   the rubber of some of them has become too hard with age.   
      
   So what can I do to fix them? Any ideas?   
      
      
   One idea I've had so far is to apply some conductive matter to the pads.   
   I have tried a product called Keypad Fix on a remote but found it dries   
   to be too inflexible and crumbles on use, albeit that that was on larger   
   contacts.   
      
   Another option is conductive paint such as   
      
   https://uk.rs-online.com/web/p/solder-pastes/8352699/   
      
   A further option is to cut tiny copper-film discs and stick them to the   
   existing pads.   
      
   Any of those good options? Other suggestions welcome.   
      
      
   --   
   James Harris   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)