Weird keyboard problems....

[Matt Minuti]

> One of the things that surprised me, when I removed the keyboard,
> is that contacts on the end of the ribbon cable are *black* rather
> than being either silver or gold in color as I was expecting.
> Looking at it through a loupe, it looks like there's actually
> a thin sheet of carbon or similar-looking material installed
> as a layer over the contacts. Made me hesitate before trying
> the alcohol swab; actually, it makes me wonder whether those
> contacts are really cleanable at all.
>
I'd swab them with alcohol. I've seen that a couple times, and each time it
turned out it was corrosion. Not to say it couldn't be a factory coating,
but if it looks like a gross old nickel, it's probably oxidized.
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