Hi Steve and thanks, So I have now taken the back off the speakers and tested the transformer. This is putting out 27V AC to the circuit board. I have inspected both sides of the circuit board which looks pristine - anything more is beyond me. The LED is not coming on when there is definitely power getting to the circuit board. I can see that the foam

I have no sound from my beolab 2500 speakers. They are connected to a beosound 3000 with MK3 powerlink cables. The beosound is working as I can get sound out from the power link socket with a powerlink to RCA adapter. The speakers have got power going to them and were working a few days ago. Anyone have any ideas on what could be wrong.