This service manual pertains to the ONKYO TX-NR900 AV Receiver, a sophisticated audio-visual component designed for home entertainment systems. It encompasses a range of advanced features engineered to deliver exceptional sound and video performance. The TX-NR900 is built with a focus on reliability and user experience, making it a distinguished choice for audiophiles and home theater enthusiasts seeking high-fidelity reproduction and seamless integration of various media sources.

This document provides comprehensive guidance for the service and maintenance of the ONKYO TX-NR900 AV Receiver. It covers essential technical specifications, detailed troubleshooting procedures, and step-by-step repair instructions. The manual is intended for use by qualified technicians and experienced users, enabling them to effectively diagnose issues, perform necessary repairs, and ensure the optimal performance and longevity of the AV receiver.