（6）Lock
Choose the option of Lock System with the up and down keys .Then open the lock function with
left and right keys. Please remember that initial password is 0000.If you want to adjust password,
you firstly should select option of set password and then input old password, new password.
When new password you input again is correct and make sure above operation, this mean that
you successfully reset password. When you want to shield some programs you don’t like, please
select the option of block program and input the channel number.
16
