This service manual covers the Yamaha RX-V795a RDS / HTR-5170 AV Receiver, a robust audio-visual receiver designed to deliver immersive sound experiences. Engineered for reliability, this unit supports advanced surround sound formats including Dolby Digital, DTS, and Pro Logic II, with a 7.1 channel output and 100W per channel power. It features a comprehensive array of connectivity options, including coaxial and optical digital audio inputs, multiple analog RCA inputs, component video inputs, and pre-outs for all channels. The receiver also boasts an AM/FM radio tuner with RDS and multiple DSP modes for various listening environments, all controlled via a programmable remote.

The purpose of this English-language service manual is to provide detailed technical information for the maintenance and repair of the Yamaha RX-V795a RDS / HTR-5170 AV Receiver. It includes essential sections on troubleshooting common issues such as power supply failures and audio distortion, alongside in-depth procedures for component replacement, including transistors, capacitors, and ICs. Furthermore, the manual offers guidance on calibration, speaker setup, and contains vital diagrams and schematics such as block diagrams, circuit diagrams, and board layouts, as well as a serviceable parts list, empowering technicians and owners to ensure optimal performance and longevity of the unit.