This comprehensive service manual provides detailed technical information for the Yamaha R-V98 and RX-V480 home audio receivers. It covers a wide range of service and repair procedures, including troubleshooting, component identification, circuit diagrams, alignment adjustments, and repair techniques. The manual is an essential resource for technicians and individuals seeking in-depth understanding of the receiver's inner workings, aiding in diagnosing and resolving technical issues, and performing maintenance and repair tasks efficiently.