hello all, in the middle of rehearsal the other night my svt 4pro went out i switched it off and on again the lights flashed but nothing this may have been covered already ( i'm sure ) and if it has, please point me in the right direction but i figured that there are many of you out there who know more about these things than i do and maybe it's something obvious. i'd just like to know what i'm looking at as far as repairs go before i bring it in. thanks everyone !!!