This service manual covers the Yamaha R-V502 and RX-V392RDS audio receivers. These units are engineered for high-fidelity audio reproduction, offering robust power output and a wide frequency response. The R-V502 delivers 100W per channel, while the RX-V392RDS provides 80W per channel, both at 8 ohms, ensuring ample power for demanding audio setups. They feature advanced surround sound decoding capabilities, including Dolby Digital, DTS, and Dolby Pro Logic II, alongside a variety of DSP modes to enhance your listening experience. Connectivity options are extensive, with both digital (Optical, Coaxial) and analog inputs, and 5.1 channel speaker outputs.

This comprehensive service manual is designed to assist owners, technicians, and service professionals in understanding, maintaining, and repairing the Yamaha R-V502 and RX-V392RDS audio receivers. It provides detailed information on technical specifications, troubleshooting procedures, and maintenance guidelines. The manual covers essential aspects such as unit dimensions, weight, and specific cleaning recommendations, ensuring that the audio receivers can be kept in optimal working condition. The inclusion of a troubleshooting guide is vital for diagnosing and resolving potential issues efficiently.