Are we really talking about a HTR-3063?
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http://www.retrevo.com/support/Yamaha-HTR-3063-Receivers-manual/id/23653ag915/t/2/
Strangely enough, that message is NOT documented in the HTR-3063 manual, but in another Yamaha manual (HTR-5063) it means the speaker being tested is believed to be Out of Phase, meaning wired incorrectly.
Your unit (HTR-3063) doesn
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