2. Press and hold the 'Menu' button at the tv.
3. Press and release the 'Power' button.
4. Press and release the 'Vol up' button.
5. Release the 'Menu' button.
6. The initial security parameter displayed will be 'zero' Change this to '76'.
8. Write down the old value of the parameter before changing.
9. Use the 'Volume up or down' to change the parameter value.
10. When you have made all the adjustments you want turn the set off to exit.
collected by; Solderknight