LG 28LN4500 User Guide - Page 45

To use Key Lock - power cord

Page 45 highlights

❐❐To use Key Lock SETTINGS ➾ LOCK ➙ Key Lock Locks control buttons on the TV. ✎✎ Key Lock function remains intact even in case of power outage or when the power cord is removed from the wall socket. ✎✎ Key Lock function can only be set by remote control, and not by the button on the TV. ✎✎ Even with Key Lock ON, TV's buttons can turn on the power.

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To use Key Lock
SETTINGS
LOCK
Key Lock
Locks control buttons on the TV.
Key Lock function remains intact even in case of power outage or when the
power cord is removed from the wall socket.
Key Lock function can only be set by remote control, and not by the button on
the TV.
Even with
Key Lock ON
, TV’s buttons can turn on the power.