USB PORT IN BACK

Hi forum, I have a small issue I happen to have my mpc set up on and someone walked passed it and knocked it down , It had fell down on its back with the usb cable plugged in and now my aksys doesnt recognize the mpc at all. I can solder very well what i wanted to know has anyone done thing before ? does anyone have pics of the mainboard? does any open have the SERVICE or schematic manual? definitely would appreciate any help thanks.

thanks lamp lol i found the manual lol. now im going to need pics of the mainboard lol

was just curious , i have to track out some instrumentals out dont want to risk causing any issues now. Just needed a pic or an experience of one for reference.