Boss HE-30吉他效果器维修手册本音响维修手册为电子版共十九页-------------Unless otherwise specifically instructed, channels Land R are independently monitored: first connect theplug from the measuring
instrument (oscilloscope or noise meter,,whicheverappropriate) into OUTPUT R, next, replace theinstrument plug with a blank,(open) plug and then connect the instrument to,OUTPUT L.Note that the channel R signal is connected to,theOUTPUT L socket through the switch on the OUTPUTR socket. To obtain pure,L" channel signal, the R socket