Sony Corporation of America. Sony Sereo Cassette-Corder TC-152SD Owner's Instruction Manual. Cover shows a drawing of the unit, 3-D view. Table of Contents holds Precaution, Notes on Cassettes, Location of Controls and Connectors, Power Sources, Connections, Recording, Playback, How to Attach the Shoulder Strap, Erasing, Maintenance, Cassette Format, Troubleshooting Chart, Dolby NR (Noise Reduction) System, More Information about Advanced Technology, Specifications, Optional Accessories, Circuit Diagram, and Warranty.