http://www.instructables.com/id/Kindle-3-DIY-Light/
similar trip
geekie sketchings
http://www.instructables.com/id/Kind...Light-Circuit/
Warning... " If you Want the PDFs: This feature is only available with a Pro membership."
So err. yeah. Just look at the pictures right?
I reckon knc1 did some pretty nice pictures of the guts of his k3 too...
Worth a search