Sony MHC-V21 Operating Instructions - Page 44

2 Connect an optional equipment (page 15). 3 Press FUNCTION repeatedly to select "AUDIO IN". 4 Start playing the connected equipment. 5 Press VOL + repeatedly to adjust the volume. Note The system may enter standby mode automatically if the volume level of the connected equipment is too low. Adjust the volume level of the equipment. To turn off automatic standby function, see "Setting the automatic standby function" (page 44). Deactivating the buttons on the unit (Child Lock) You can deactivate the buttons on the unit (except ) to prevent misoperation, such as child mischief. Hold down  on the unit for more than 5 seconds. "CHILD LOCK ON" appears on the display. You can only operate the system using the buttons on the remote control. To turn off the Child Lock function, hold down  on the unit for more than 5 seconds until "CHILD LOCK OFF" appears on the display. Note ••Child Lock function will be turned off automatically when you disconnect the AC power cord (mains lead). ••Child Lock function cannot be activated when you open the disc tray. 44US Setting the automatic standby function The system enters standby mode automatically in about 15 minutes when there is no operation or audio signal output. By default, the automatic standby function is turned on. 1 Press OPTIONS. 2 Press / repeatedly to select "AutoSTBY", then press . 3 Press / repeatedly to select "ON" or "OFF", then press . To exit the options menu, press OPTIONS. Note ••"AutoSTBY" flashes on the display about 2 minutes before entering standby mode. ••The automatic standby function does not work in the following cases: -- during tuner function. -- when the Sleep Timer is activated. -- when microphone or guitar is connected. -- when the system is a Party Guest in the Wireless Party Chain function or the Guest system in the Speaker Add function.