hoi, The main fuse of the system keeps blowing up, as soon as I switch the system on... Does any one know how I can get in to the big box to repair or replace the power supply ? I have been searching for a service manual, no succes so far... The leads from the fuse go into the big box with bass woofer, but I didnt get it open on a decent way so far... Can someone help me please ? System is bought in america, now in use in belgium, so no more warranty Grtz, normal.