雅马哈Yamaha-SY-2-Service-Manual维修服务手册说明书含电器原理图

SY-2 Service Manual ContentsPageSpecification1Coding Guide2Technical Information .........3~18Assembly Layout,Top View Back view19Block Diagram…20SM1 Circuit Diagram .............21SM1 Circuit Board Wiring22SM2 Circuit Diagram ..23SM2 Circuit Board Wiring ......24SK Circuit Diagram…25SK Circuit Board Wiring .......26SP1 Circuit Board Wiring .........27SP1 Terminal Voltage Table28SP1 Circuit Board&Wiring ......29SP2 Circuit Diagram30SP2 Terminal Voltage Table .........31SP2 Circuit Board&Wiring ...32Power Supply Circuit Diagram .......33Panel 1 Circuit Diagram(1),(3).....34Panel1 Circuit Diagram(2）…35Panel 2,3,4 Circuit Diagram ..........36Manual Keyboard Switch Circuit Diagram37New Parts Specification .........38~39Overall Circuit Diagram40Parts List、