This comprehensive service manual for the Sony WM-PSY02 portable audio device provides detailed instructions and technical information for repair and maintenance. The manual covers disassembly procedures, mechanical adjustments, electrical adjustments, and includes a comprehensive collection of diagrams. Detailed exploded views provide a clear understanding of the device's internal components. A complete electrical parts list is included, ensuring ease of sourcing replacement parts. This manual is written in English and is an essential resource for technicians and individuals seeking to understand and maintain this popular audio device.

The Sony WM-PSY02 is a compact and portable audio cassette player that was released in the 1980s. This model was designed to deliver high-quality audio playback on the go, making it a popular choice for music lovers and audiophiles. The WM-PSY02 featured a sleek and stylish design, with a black metallic exterior that was both durable and elegant. It was equipped with a single-line LCD display that provided information on playback status, battery life, and other operational details. The device was powered by two AA batteries, providing a long playtime for hours of uninterrupted music enjoyment. One of the key features of the WM-PSY02 was its advanced audio technology. It incorporated a Dolby B noise reduction system, which effectively minimized tape hiss and other forms of background noise, resulting in a clearer and more pristine audio experience. The player also boasted a high-quality cassette mechanism, ensuring smooth tape transport and minimal wear and tear. The WM-PSY02 was renowned for its reliability and longevity, with many units still functioning flawlessly after decades of use. Its compact size and lightweight design made it incredibly portable, allowing users to enjoy their favorite music anywhere. The Sony WM-PSY02 quickly became a symbol of the portable audio revolution in the 1980s, offering a convenient and enjoyable way to experience music on the go.