The Yamaha RX-V793, also identified as the R-V1103, is a sophisticated audio-visual receiver engineered for immersive home entertainment. This model offers a robust 7-channel amplification system, delivering 100W per channel at 8 ohms, and boasts a wide frequency response from 10Hz to 100kHz. It supports advanced surround sound formats including DTS, Dolby Digital, and Dolby Pro Logic II, complemented by digital sound field processing for enhanced audio realism. With extensive connectivity options such as multiple digital optical and coaxial inputs, component video inputs, and 7.1 channel pre-outs, it provides the flexibility to build a comprehensive audio setup.

This service manual provides comprehensive technical information for the Yamaha RX-V793 and R-V1103. It covers essential maintenance procedures, detailed troubleshooting guides for common issues like power supply, audio output, display, and control functions, and includes critical technical specifications. Furthermore, this manual contains schematics and parts lists to facilitate accurate repair and servicing. Its purpose is to equip owners, technicians, and mechanics with the necessary knowledge to maintain, diagnose, and repair the unit, ensuring its optimal performance and longevity.