On Fri, 15 Apr 2011 20:43:34 +0800, Man-wai Chang
wrote:

Don't wanna waste it *IF* it could be repaired easily...

Thank you. It's good to see someone else interested in keeping
electronics out of the landfill by repairing things, instead of just
replacing them.

Much can be learned by simply disassembling the hub. With an
inspection magnifying glass, look for bad soldering. Look for debris
between the IC leads. Twist the board looking for intermittents.
Check if 5VDC power is arriving at the chip. If the board looks
dirty, clean it.

Good luck.

--
Jeff Liebermann
150 Felker St #D http://www.LearnByDestroying.com
Santa Cruz CA 95060 http://802.11junk.com
Skype: JeffLiebermann AE6KS 831-336-2558