Child Lock allows you to lock the buttons on the front of the TV.
Press MENU to see the main menu.
Press CH+ or CH- to highlight
Press OK to enter the Preferences
Press CH+ or CH- to highlight FPA
(Front Panel) Lock.
Press VOL+ or VOL- to turn on or off
FPA Lock. Choose On to disable all the
buttons on the front of the TV. FPA Lock
On will appear on the TV screen each
time you press buttons on the front of
the TV. You can still operate the TV with
the remote control. You can still use the
POWER button on the front of the TV, but
only to turn off the TV (not on). Set FPA
Lock to Off to cancel this feature so you
can use the buttons on the front of the TV
Press MENU repeatedly to exit the
menu or the menu will automatically
disappear within a few seconds if no
buttons are pressed on the remote
I hope this helps and good luck!