Sony MZ-R90/R91 PORTABLE MINIDISC RECORDER Service Manual

This service manual for the Sony MZ-R90/R91 PORTABLE MINIDISC RECORDER provides comprehensive information for servicing and maintaining the device. It includes detailed servicing notes, general information, disassembly instructions, test mode details, electrical adjustments, diagrams, exploded views, and an electrical parts list. The manual is in English language format.