CONTROLS AND FUNCTIONS4 En1 CD input jacksUsed to connect a CD player (see page 9).2 PHONO jacks and GND terminalUsed to connect a turntable that uses an MM cartridge,and to ground the terminal (see page 9).3 Audio input/output jacksUsed to connect external components, such as a tuner,etc (see page 9).4 DIGITAL (OPTICAL) jackUsed to connect a component with a digital opticaloutput (see page 9).5 DIGITAL (COAXIAL) jackUsed to connect a component with a digital coaxialoutput (see page 9).6 DIGITAL (USB) jack (Type B)Used to connect a PC (see page 13).7 DC OUT jackFor supplying power to a Yamaha AV accessory. Fordetails on connections, refer to the instruction manualof the AV accessory.8 SPEAKERS A/B terminalsUsed to connect one or two speaker sets (see page 9).9 SUBWOOFER OUT jackUsed to connect a subwoofer with built-in amplifier(see page 9).yThe SUBWOOFER OUT jack attenuates signals over 90 Hz.0 AUTO POWER STANDBY switchRear panelSwitchposition StatusONThe unit enters standby modeautomatically if not operated for 8hours.OFF The unit does not enter standby modeautomatically.