This service manual covers the Yamaha R-V701 and RX-V490 models, designed for advanced audio reproduction. These units are engineered for reliable performance, featuring electronic control and support for various surround sound formats like Dolby Digital and DTS. Their robust construction and specific dimensions, including a width of 435 mm, height of 151 mm, and depth of 392 mm, with a weight of 10.2 kg, underscore their quality. Power is supplied via AC mains, requiring 120V or 240V AC depending on the region.

This comprehensive English service manual is intended for technicians and advanced users focused on repair and servicing. It provides essential information including block diagrams, schematics, detailed troubleshooting guides for common issues such as power, audio output, and input selection, and step-by-step repair procedures. The manual also details diagnostic tools and component testing methods, along with maintenance instructions like cleaning with a dry cloth. Fuse replacement guidance is included, though firmware updates are generally not user-serviceable.

This service manual covers the Yamaha R-V701 and RX-V490 models, designed for advanced audio reproduction. These units are engineered for reliable performance, featuring electronic control and support for various surround sound formats like Dolby Digital and DTS. Their robust construction and specific dimensions, including a width of 435 mm, height of 151 mm, and depth of 392 mm, with a weight of 10.2 kg, underscore their quality. Power is supplied via AC mains, requiring 120V or 240V AC depending on the region.

This comprehensive English service manual is intended for technicians and advanced users focused on repair and servicing. It provides essential information including block diagrams, schematics, detailed troubleshooting guides for common issues such as power, audio output, and input selection, and step-by-step repair procedures. The manual also details diagnostic tools and component testing methods, along with maintenance instructions like cleaning with a dry cloth. Fuse replacement guidance is included, though firmware updates are generally not user-serviceable.