i dug through my owners manual and even called Yamaha support to try to figure out what that "ps" meant, and had no luck at all. i unhooked everything from the receiver, performed the reset and the little "ps" was still appearing. after unhooking everything, i put 2 speakers on it, put it on the Tuner setting and attempted to get sound..and still nothing. i may just have to take it to a repair shop unless anybody else has an idea!? Thanks!