17Additional functions on the main unitSelector knobMENUAUX INPHONESSOURCEPHONESLEVELDimming the display’s brightness1 In the stop mode, press MENU.2 Turn the selector knob to select “Dimmer”, thenpress the selector knob.3 Turn the selector knob to select “On”, then press theselector knob.• To set the brightness to normal, select “Off”.4 Press MENU to exit.Listening with headphonesPlug the headphones (sold separately) into the PHONESjack.n Adjusting the volumeTurn PHONES LEVEL on the unit.NOTETo prevent hearing loss, do not raise volume level excessively whenusing headphones.Disabling the remote control unit operationThe player can disable remote command reception, to avoidunintended operations by other remote commands when operatingthis player together with several DENON products.1 In the stop mode, press MENU.2 Turn the selector knob to select “IR Lock”, thenpress the selector knob.3 Turn the selector knob to select “On”, then press theselector knob.• To use the remote control unit, select “Off”.4 Press MENU to exit.Playback from external equipment1 Connect the external equipment to the AUX INconnector.2 Press SOURCE to turn on the source indicator“AUX”.3 Start playback on the external equipment.Starting playback automatically uponpower up (power on play)1 In the stop mode, press MENU.2 Turn the selector knob to select “Power On Source”,then press the selector knob.3 Turn the selector knob to select the source (CD),then press the selector knob.4 Turn the selector knob to select “Auto Play”, thenpress the selector knob.5 Turn the selector knob to select “Play”, then pressthe selector knob.• to disable this function, select “Off”.6 Press MENU to exit.