This comprehensive service manual provides detailed technical information for the Yamaha R-V902 and RX-V592/RDS receivers. It includes detailed schematics, block diagrams, parts lists, troubleshooting guides, and repair procedures. This manual is an indispensable resource for technicians and engineers involved in the repair and maintenance of these audio systems. The service manual offers a wealth of information, enabling users to understand the internal workings of the receivers, diagnose problems effectively, and perform necessary repairs with precision. It serves as a valuable tool for anyone seeking to maintain or restore these receivers to optimal performance.