I connected up the controlboard 2.5B(old tenda adapter version) and followed the dozuki guide for connecting the ESC's and servo.
According to the guide Step 68, the Servo should be connected to D9.
On D9 the servo does not work. but on D11 it works.
I'm not sure if its changed in the software build, or if the dozuki guide is wrong...
I'm running the image from 5.september but updated/changed to controlboard25 branch on github(according to guide: http://openrov.com/forum/topics/beta-of-the-controller-board-2-5-aware-cockpit-software-ready)