This service manual pertains to the Onkyo TX-SR602 and TX-SR8260 AV receivers. These units are designed to provide a high-quality audio and video experience, integrating advanced features for home entertainment systems. Their robust engineering ensures reliable performance for discerning users.

This manual provides comprehensive technical information essential for the service and maintenance of the Onkyo TX-SR602 and TX-SR8260 AV receivers. It includes detailed specifications, service procedures, exploded views, block diagrams, schematic diagrams, printed circuit board layouts, IC block diagrams and descriptions, microprocessor connection diagrams, adjustment and confirmation procedures, packing instructions, and a complete parts list. This resource is intended for qualified technicians and service personnel to ensure the optimal functioning and longevity of these audio-visual components.