- 1. Press Quick menu. 
- 2. Scroll to Settings and press OK. 
- 3. Scroll to System and press OK. 
- 4. Scroll to Parental Controls and press OK. 
- 5. Enter a 4 digit PIN. - If a System PIN has already been set enter your System PIN. 
- 6. Repeat the 4 digit PIN. 
- 7. Scroll to Locks and press OK. 
- 8. To put parental restrictions on a specific area scroll to the relevant setting (E.g. Input Block) and press OK. 
- 9. Scroll to the Input you would like to lock (E.g. HDMI1) and press OK. 
- 10. The Parental Lock is indicated by a Padlock icon.