Turning Secure Function Lock on

1
Press Menu, 1, 8, 2.
18.Security
  2.Function Lock
Bsymbol.utri    Lock OffBsymbol.rarrOn
Bsymbol.dtri    Set Password
Select Bsymbol.utriBsymbol.dtri or OK
2
Press Bsymbol.utri or Bsymbol.dtri to select Lock OffBsymbol.rarrOn. Press OK.
3
Enter your four-digit administrator password.
Press OK.