NEC E421 User Manual page 22

(The default password is: 0 0 0 0.)
[Button Lock] – Select On or Off to lock or unlock the control buttons
on the side panel of the display. When this function enables, the control
buttons on your display will be locked and the display will be controlled by
remote control only.
[Block Unrated Channels] – When Block Unrated channels is set to on,
your diplay will block unrated programs.
[USA Parental Locks] – Set the parental control level by MPAA or TV
Rating.
[Canadian Parental Locks] – Set the parental control level via English
Rating or French Rating.
[Open V-Chip] – Open V-Chip is an advanced V-Chip rating system for
digital channels that are received. The rating table will be updated by
downloading the RRT5 data for blocking.
7. Closed Captions Display: Select a closed caption options. (Off / On /
With Mute)
8. Analog Captions: Select an analog caption option. (CC 1-4 / TEXT 1-4)
9. Digital Captions: Select a digital caption option-. (Service 1-6)
English-18