Hi everybody

My father bought me this DS9000/12 and it hasn't had much use, but when I have used it, it's been incredible sound with my iPhone 4S

Last night, i plugged the unit in and it's completely and utterly dead, no sound or anything, have tried 3 different power cables and still nothing
also tried the line in output to see if it was the dock connector causing a problem

What or why has this happened?
It's had little use and now this!
Only had it 13 months!

Is there an internal fuse i can change?

Any ideas?