Yamaha AV Receiver HDMI sound problem fixed - YouTube
How to fix Yamaha AMP no power and not powering on RX-V3800 RX-V1900 RX-2700 RX-V1700 and many other models - no need for a service centre – Sterling IT
Yamaha Amp Repair and Teardown - YouTube
Yamaha RX-V661 Receiver Audio/Video HDMI Digital Optical Phono AM/FM R