I'm looking for a manual for this old Integrated Stereo Amplifier made my Sony. Says it's a HST-221 Remote Controlled Hi-Fidelity Stereo Component System. Hoping to find info on how to fix it through the manual... had a flash one day and it wouldn't turn on, so we opened it up and changed out the fuse, it now turns on, but we aren't getting anything out of the speakers. Help is appreciated, thanks in advance. -Preston