Parts/Service for SE-20

The manual provides specifications and parts lists for various Pioneer headphone models including SE-20, SE-20A, SE-25, SE-30, SE-30A, SE-45, SE-50, SE-100, JB-100, SE-L20, SE-L20A, SE-L25, SE-L40, SE-305, and SE-505. Each section details the product's technical specifications such as impedance, frequency response, input power, and weight. It also includes a detailed parts list with key numbers, descriptions, and corresponding part numbers, accompanied by exploded diagrams for each headphone model, facilitating identification and replacement of components for servicing and repair purposes.