I volunteer at a local repair cafe and someone's brought one of these Zappelin speakers in, with a blown power supply board.

We've not had any success repairing the board, and B&W Trek me they aren't manufactured any more. Nor do they have any circuit diagrams.

I was wondering if anyone knew the output pinout (on the six pins)? What voltage they should be, which pubs are ground, etc. If we know that, maybe we can put together an alternative that provides the same requirements.

Thanks for your help!