This service repair manual is specifically designed for the Yamaha RX-V4600 and DSP-AX4600 AV receivers and amplifiers. It provides comprehensive technical information and detailed instructions for servicing and repairing these audio devices. The manual covers a wide range of topics, including troubleshooting, component identification, circuit diagrams, adjustment procedures, and repair techniques. It is an essential resource for technicians and individuals with technical expertise who need to perform maintenance or repair work on these Yamaha models. This service manual is written in English and offers a clear and concise guide to understanding the inner workings of these audio systems.