Hi all I have the same problem that my 12V power supply doesn't work, the fuse is ok, I checked that a used another fuse just to make sure, one thing I have noticed, and I'm not sure if it should be like this, inside the pocket, there is a loose piece of plastic, circular with a hole in in the middle, should that be in there, it looks like it's held in by two small clips either side. Should it be loose? Should it be in there? Other than that any one have any ideas on this problem? If I need to replace the socket how's the best way to remove it, I've tried to prise it out and it comes out a bit, but then there's a lump at the end that won't come through the hole. Help!!