wrong power supply plugged I blown fuse on pcb

"Using a different power supply would not hurt anything, but possibly the power supply. If the power supply's output current is rated too low, then it could overheat and kill the power supply. It can't have two high of a current rating, because a battery only draws what current it needs. If the voltage was incorrect, the plug wouldn't fit.

Your problem is likely not a fuse, or due to your power supply. If you open it and supply some pictures and explain exactly what the problem is, I can guide you through repairing it. I know this question is old, and you've probably moved on though."