I have a Sony STR-DE475 AV Amp which had been a great piece of kit, but unfortunatly it now has a problem with the "centre" speaker. After switching on the unit and degining to play a DVD after approx 5 mins you hear a click of a relay and the centre speaker does not work anymore !!!! Any clues what this issue could be please ???
I have the exact same problem, no answer from me unfortunately. Will do some surfing now to find an answer, if however you have one by now please let me know.
Matthew
March 2009
i have a similair problem. internally there are switches/relays (the clicking noise when turning on) one of these has become stuck/broken or possibly a dry soldered join