When the headphones or other devices are connected to the i/LINE OUT (OPTICAL) jack When an optical digital connecting cord is connected, the output is automatically switched to an optical digital output. When a remote control or a connecting cord is connected: The current AUDIO OUT setting (�HP� or �LINE�) flashes for about 5 seconds. If you connect another device to the i/LINE OUT (OPTICAL) jack, first remove the device and connect the headphones again, then switch the AUDIO OUT setting to �HP.� When AUDIO OUT is set to �LINE� You cannot adjust the volume using VOL +/� on the CD player or the remote control. When using an optical digital connecting cord To record a CD on a MiniDisc, DAT, etc., make sure that the CD player is paused before starting the recording procedures. About the G-PROTECTION and equalizer functions when using the connecting cord or the optical digital connecting cord � To record high quality CD sound, set the G-PROTECTION setting to �G-PRO 1� on the menu. � If the AUDIO OUT setting is set to �LINE,� the parametric equalizer function does not work.