Control elements3Control KnobMenuSignal indicatorSIGNAL LED:Indicate output signal levels in normal operating rangeVPL LED:This indicator signals if the amplifier output is clipping or limiting.CPL LED: Low impedance/Short Circuit Detection FaultMUTE LED:MUTE-Audio protection under mute position.LED displayTurn on the power supply,display light can display various parameters for use's convenienceEnterConfirm the parameter you are setting or enter into operation menuBackTo page up or move the cursor when editNextTo page down or move the cursor when editMenuIn standby state,press this key to enter the system setup programInput channel setting keyClick this key to make current channel MUTE or Sound On.Push this key 3 seconds to enter into this channel's setting modeUSB interfaceUse a USB cable to connect the machine and PCOutput channel setting keyClick this key to make current channel MUTE or Sound On.Push this key 3 seconds to enter into this channel's setting modeESCBack to previous menu when click ESC in edit state or return to stand-by under other conditonsControl KnobSet parameters in edit stateBypassChoose to open or close when editing EQ Adjusted parameter is not implemented under bypass conditionPower switchTurn the unit power on or off.SANWAY AUDIO http://www.china-sanway.com