SERVICE MANUALHAMAMATSU, JAPANCopyright (c) Yamaha Corporation. All rights reserved. YMW ´10.09PA 012000DSR112DSR115 DSR215DR118WPOWERED SPEAKERDSR112/DSR115/DSR215/DSR118WSPECIFICATIONS ............................................................ 3PANEL LAYOUT ................................................. 5CIRCUIT BOARD LAYOUT ............................. 6DIMENSIONS ..................................................................... 8DISASSEMBLY PROCEDURES ..................................... 10CIRCUIT BOARDS .................................................. 29TEST PROGRAM ............................................. 41INSPECTIONS ...................................................................... 51UPDATING .............................................................. 66PARTS LISTBLOCK DIAGRAMOVERALL CIRCUIT DIAGRAM■ CONTENTS