This service manual covers the Yamaha RX-V471 / HTR-4064, a 5.1 channel AV receiver designed to deliver an immersive audio experience. Engineered with support for advanced surround sound formats like DTS-HD Master Audio and Dolby TrueHD, this receiver offers robust connectivity options including multiple analog and digital audio inputs, Ethernet for network access, and HDMI 1.4 with CEC control. Its powerful output, delivering 100W per channel at 8 ohms, combined with a user-friendly GUI and AM/FM tuner, makes it a versatile centerpiece for any home entertainment system.

The purpose of this manual is to provide comprehensive technical information for the maintenance and repair of the Yamaha RX-V471 / HTR-4064. It details front, rear, and remote control panel layouts, essential specifications, and critical service precautions. In-depth disassembly procedures, firmware update methods via USB or network, and self-diagnostic functions are explained to assist technicians and owners in troubleshooting and maintaining optimal performance. This guide ensures that the receiver's advanced features and reliable operation can be preserved through proper service and upkeep.