My pre-owned marantz sa8260, SACD player, just arrived, I'm trying it on my marantz PM90 int amp but I got no audio, connected thru analog out front on player to cd in on the int amp. I can see thru the display that it is on play but no sound being produced, what seems to be the problem? RCA cables are okay, cause, when I disconnect them and connect it to my old cdp, it sings.....TIA