My Book Essential: PC Board Failure - Next Step?

You might try looking for a board on Ebay this link explains a little about the boards http://community.wd.com/t5/Off-Topic-Discussions/Bridge-Boards/td-p/353839. If the board has a bad diode then you may be able to bypass it. The one person who may be able to help is fzabkar check his posts or try sending him a PM.

Joe