Welcome to the forum!
From the images that I saw online, that receiver appears to take a standard three-prong power cord. If you happen to have a spare around (say, from a PC), that would work. Otherwise, you can order them online for very little money. Monoprice.com is a good place to get cables, including power cords. I haven't looked at local shops for those, but I bet that you could find one there, too.