10/6/2017
RX-V677 Setting Receiver Back to Factory Settings - RX-V677 - RX-V - AV Receivers - Audio & Visual
http://faq.yamaha.com/us/en/article/audio-visual/av-receivers-amps/rx/rx-v677_black_u/10797/8403
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7. Press the Main Zone Power button to turn the unit on and it will be at factory settings.
