James Harris  wrote:
> 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 technology is the same as that used for remote controls, see here for
lots of potential repair methods:
http://www.repairfaq.org/sam/irrfaq.htm#irrwcm

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