hi, got my servo a year back and yesterday i turned on my system but the Sub wudn't turn on . checked all the connections, tried different power sockets. im afraid the problem is inside the sub. there should be a fuse inside, but i dont know how to get there. tried to find manuals/service manuals which have some info about replacing a fuse, or any such procedure.. i havent opened many electronic items before so im a bit nervous to do it myself. need some guideance, dont want to give it to any repair shop here at my place. i want to do it myself, but need some basic information about what im dealing with.