This manual pertains to the Chinon Sound SD 300, an audio-visual equipment projector designed for 8mm film with optical sound. While specific production years are not detailed, its features suggest a likely origin in the late 20th century. The projector is mains powered and includes an integrated speaker system, representing a notable piece of vintage projection technology.

This document serves as a comprehensive guide to the Chinon Sound SD 300 projector. It covers essential operational procedures, maintenance instructions, and troubleshooting steps for common issues. The manual is presented in French and comprises 14 pages, intended to assist users in understanding and maintaining their projector.