Deja Vu . . .
A 110 V unit North American model, accidentally plugged into a 230 v main by my wife a few years ago to retrieve a CD. ( I had been using a step-up converter previously ). These things happen between countries, so :
1. I took the unit to a B&O store. Please note that it was well out of warranty, being one of the original, non timer-alarm year models.
2. The unit was examined by a B&O authorised repairman, who found a burned fuse, and power regulator. ( I was told that had the power had gone further into the IC board, the damages would have been more serious ).
3. It was suggested that to avoid future problems, the unit should be appropriate to the local or regional electrical supply. I was asked if I would then like the BS 1 to also be converted back to 220-240v, which I did. According to repairman, all BS 1 units were made to European electical standards in Struer, with a simple jumper inside being set for either 100 v or 220-240 v depending on which market they would be sold in.
( If your damage isn't too severe, you may wish to consider this option in reverse ).
4. The unit was then repaired and changed in one week. Total cost around 100 Euro.
5. This Beosound 1 unit contiues to work well for us as a CD player, FM radio, and a Home Theatre and MP3 player amp, using the A. Aux plug underneath the unit. We have added two different colour front grilles as options, so it also appears to be a new unit to many that see it.
I hope this is helpful to you, and yes, I still speak to my wife.