No power connection on SNES motherboard

I recently acquired a super nintendo at a yard sale for an awesome price & now I know why the price was so low...once I got it home to plug it in and start to re-live my childhood, I realized that there is nothing for me to connect my power cable to! There is an empty space where the power connection should be on the motherboard. Since I'm not a techie, I don't know the first place to start looking for the part, how to solder said part to the motherboard after I acquire it, and whether or not this is even a possible fix...at this point I'm ready to take the console to a repair shop & pay them to fix it. Any suggestions on what I should do?