This manual covers the Yamaha SV-120 and SV-120S Silent Violin models, designed for both practice and performance. These instruments represent Yamaha's commitment to quality engineering and reliability, offering a unique solution for musicians seeking versatile and dependable equipment. Their innovative design ensures a high standard of performance, making them a valuable asset for any musician.

This Service Repair Manual provides comprehensive guidance for maintaining and repairing the Yamaha SV-120 and SV-120S Silent Violins. It includes detailed information on disassembly and assembly procedures, inspection guides, troubleshooting for noise issues, and a parts list. Technical specifications, panel layouts, and circuit diagrams, including overall circuit diagrams, block diagrams, IC block diagrams, circuit board layouts, and LSI pin descriptions, are also provided to assist owners, mechanics, and technicians in understanding and servicing the instrument.