haha i am laughing
ok first of all if you dont know what mobo stands for you shouldnt be opening your psp
well a mobo is the motherboard of the psp
and bridging the fuse is when u connect the + and - sides together, so i suppose you could just put a blob of solder on the fuse so the + and - sides are connecting
although dont ever bridge something while the electronics are on, just so you know because it can make a rly big spark and even start a fire, so ive heard.
hope that fixes the problem