ViewSonic N3735w-1M Service Manual page 22

Parental Menu — To set up Parental Control options
It is active in all input sources; however, when in AV, S-Video, YPbPr 1, YPbPr 2,
HDMI 1, HDMI 2, or VGA source, the TV option on the left does not appear.
Enter password and the screen below will show. (The default password is 0000.)
•
Channel Block: To block channels. Use ▲▼ to select the channel you want to block, and
then press ENTER to block or unblock it.
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N3735w-1M