Cary 306/200 Power Cord

I just received a used 306/200 and the power cord that was supplied does not fit completely into the back of the player. I borrowed the cord off of a Denon and it fits the back, however it is a two prong plug to the wall (conditioner) and the one shipped with the Cary is a three. Can anyone tell me if the Cary should have a grounded plug? Thank you