This service manual covers Yamaha AV Receiver/AV Amplifier models RX-V2400, RX-V2400RDS, and DSP-AX2400, along with related models RX-V1400, RX-V1400RDS, HTR-5690, and DSP-AX1400. These units are engineered for advanced home theater audio, featuring 7.1 channel output with 120W per channel at 8 ohms and 150W at 6 ohms. They support a wide array of surround sound formats including DTS-ES Discrete 6.1, Dolby Digital EX, and Dolby Pro Logic IIx, enhanced by a high-performance 32-bit Yamaha LSI for digital signal processing. Connectivity is extensive, with digital inputs (Coaxial, Optical, USB), multiple analog inputs including XLR, HDMI ports, component video inputs, and 7.1 channel pre-outs. The receivers offer a broad frequency response of 10Hz-100kHz and a signal-to-noise ratio of 100dB, designed to deliver immersive audio experiences.

The purpose of this comprehensive English service manual is to provide detailed technical information for the maintenance and repair of the specified Yamaha AV receiver models. It covers essential areas such as schematics, troubleshooting guides, detailed disassembly and reassembly procedures, parts lists, and technical specifications. This manual is an indispensable resource for owners, technicians, and service professionals, enabling them to effectively diagnose issues, perform routine maintenance, and ensure the optimal performance and longevity of their audio equipment.