20Basic operationsIf no sound is produced for 3 minutes, the mainunit automatically turns off.This function is available when a disc/file isselected as the source.You cannot use this function when a radio broad-cast or a device connected to the [LINE IN 1],[LINE IN 2] or [LINE-DIGITAL IN] terminals isselected as the source.■When a disc/file is selected as the sourcePress [A.STANDBY]..• Pressing [A.STANDBY] once again deactivatesthe function. (The display window changes to“A.STANDBY OFF”.)When playback of a disc/file finishes, the autostandby function starts a countdown.When no operation is carried out for 3 minutes, themain unit automatically turns off.NOTE• Leaving the volume at “0” is not the same asproducing no sound, and therefore does not startthe auto standby function.You can lock the disc tray to prevent the disc frombeing ejected.■When the main unit is turned offPress 0 while holding down 7 on themain unit.• Repeat this step to cancel the disc ejection lock.(The display window changes to “UNLOCKED”.)Auto standby functionActivating the auto standby function“A. STANDBY” indicatorPerformance of the auto standbyfunctionAt this time, the “A.STANDBY” indicatorstarts flashing.20 seconds before the main unit turns off,“A.STANDBY” starts flashing.Locking disc ejectionSetting the disc ejection lockFor the locations of the remotecontrol buttons, refer to page 17.