& replace the correct BLOWN fuse.
You do have a meter, don't you?
Looking at them is not the way to check if they are blown or not.
You've got 4x fuses including the Mains Fuse, it will be one of the other three on the circuit board.
2x 1A & 1x 1.6A ONLY replace like for like, do NOT fit a higher value than the ones fitted.
acorn
September 2011