Re: [Thinkpad] 560: several keys kaput after swapping DC/DC card

You probably don't have the ribbon cable all the way seated. Re-seat it.
Worst case, pick up a keyboard on Ebay. They are cheap
----- Original Message -----
From: "Sanjoy Mahajan" <sanjoy@mrao.cam.ac.uk>
To: <thinkpad@stderr.org>
Sent: Saturday, April 19, 2003 12:38 AM
Subject: [Thinkpad] 560: several keys kaput after swapping DC/DC card

> After two years of my 560 not being able to use battery power or
> charge a battery, I finally got enough courage to replace the DC/DC
> card (had tested the battery pin voltages as per the HMM and found the
> battery was okay).
>
> The repair involved a stack of parts to take out and put back. To my
> surprise battery charging works fine, as does everything else. Except
> that a few keys no longer work:
>
> F11, F12, Insert, Delete, NumLk/ScrLk (I think), downarrow, rightarrow.
>
> F12 is bad to lose because of hibernation, but I use Linux and 'tpctl
> --hibernate' works as a replacement. Downarrow and rightarrow are
> often useful too. Insert/Delete/NumLk I never use.
>
> While I had the 560's gut all over the table, I cleaned 6 years of
> dust balls and tiny food particles from the keyboard with a (very
> slightly) damp paper towel and blowing under the keyboard. Could I
> have broken a keyboard wire trace while removing or cleaning the
> keyboard? Any other thoughts? If I broke a trace, following
> suggestions in this list from many years ago (1997) I might try
> conducting epoxy.
>
> I'd hate to have messed up the keyboard, since it's the finest
> keyboard I've used (even better than the old Sun Sparc keyboards), and
> one reason that I stay with the 560 series (my second laptop, just
> arrived, is a 560Z).
>
> -Sanjoy
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Received on Sat Apr 19 09:58:56 2003