In the meantime I successfully repaired more than ten SoundBridge Radios with failed power supply and I would like to offer a repair service for people out there who are not familiar with electronics. I'm not fixing the original PSU, but I'll replace it with another one since the chance that the original repaired one will fail again is too high.
I'm located in Germany. To get in contact with me please feel free to send me a message using the forums
or by email to roku-repair [AT] ranger81 [DOT] de