This document pertains to the JVC TH-M505 and TH-M501 audio systems. While specific production years are not detailed, these models represent JVC's commitment to audio engineering, offering reliable performance and advanced features for an enhanced listening experience. The focus on electrical circuits and component layout underscores the sophisticated design of these audio units.

This manual provides schematic diagrams in English, intended for technicians and repair specialists. It covers electrical circuits, component identification including resistors, capacitors, transistors, and ICs, as well as voltage and current ratings. The document illustrates signal flow paths for audio processing and amplification, power distribution, and assists in fault diagnosis for circuit issues. Component part numbers are also referenced to aid in replacement.