Re: keyboard problems

[jonnosan <jonnosan@gmail.com>]

On May 13, 2:13 pm, Silicon Sam <Silicon...@gmail.com> wrote:
> On May 12, 10:53 pm, jonnosan <jonno...@gmail.com> wrote:
>
> > I found a hairline crack on the PCB that I believe to be the root
> > cause of the problem.
> > It's in the top left hand corner of the photo athttp://www.flickr.com/photos/jonnosan/495660467/
>
> > Thanks to all for the assistance troubleshooting.
>
> > The next question is, is this worth repairing?
>
>   Man, that would be a simple fix for me.  I have taken plugin cards
> broken in half and put them back together, traces and all.  The Epson
> APL card didn't use fiberglass PCB and was very brittle.
>
>   I use a small tipped soldering iron, and a stereo zoom microscope.
> I scrape away the green layer off the traces, and use wire wrap wire
> and solder to bridge across the cracks.  Can be very delicate work
> when the traces are super small and close together.  But that keyboard
> is wide open.
>
> Raymond

It was indeed wide open enough that even an incompetent technician
like me managed to bridge the crack. My iie seems to be working! Next
step - try to make some boot disks with ADTPro.

There's a photo of my solder work at http://www.flickr.com/photos/jonnosan/495779045/
(not for the squemish)