Im having the same problem here. No sounds through speakers. Earphones works perfectly. I didnt silde the fuse of but I tried to connect 2 sides of a fuse with a wire but when they were connected the psp didn't boot up. when I remove the wire everything works again but still no sounds is there anyway I can check if its really a fuse problem or not ? I'm just a noob so please help xD I know this is an old topic but please help me ! Thank in advance :)