Sony MHC-V50 Operating Instructions - Page 39

Touch and hold  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, touch and hold  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. 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. Updating the software The software of this system may be updated in the future. You can update your system's preinstalled software from the websites below. Follow the online instructions to update the software. For customers in the United States: For customers in Canada: 39US Other Operations