My Sony SA-WP780 subwoofer has stopped working Ive pulled up the manual which has me confused. From what I can see there is only one fuse . Its a 3.15A/125V and I'm having alot of problems getting a replacement fuse anybody have any idea where and how I can find another one? Hopefully I haven't messed up anything serious on the board by being impatient trying and blowing the wrong fuses. please HELP!!!!