Check to see if you hooked the left channel pre-out to the left speaker. When I first ran my auto set up, I found the RCA pre-outs were oriented different than the 975 I had previously. I mistakenly connected the Left out to the left back surround channel. (same for right) I heard the testtone coming from the left back channel and got the "fail" message. I reconnected the pre-outs properly and completed the auto set up.