1. Press the MENU button on your remote.
2. Scroll to Settings.
3. Press OK.
4. Scroll to Parental.
5. Press OK.
6. Using the numeric keypad, enter the default PIN number.
Note : Default PIN number is 4725.
7. Scroll to the required menu lock type.
8. Scroll to Child Lock.
9. Scroll to On.
Note: Enabling Child Lock will disable all buttons on the TV, but the remote will continue to work.
10. Scroll to Set PIN.
11. Press OK.
12. Using the numeric keypad, enter a new PIN number.
13. Confirm the new PIN number.
14. The parental lock has been setup. Press MENU to exit the menu.