LG 75TR3BF-B Owner's Manual page 13

Turns on or off the whole screen.
(Built-in computer) Works the same way as the Backspace key.
Navigation Buttons Scrolls through menus or options.
Selects menus or options and confirms your input.
Turns the note feature on.
Allows you to move back one step in the user interaction function.
/ Scrolls through the saved program/channels.
Moves to the top of the screen.
Moves to the bottom of the screen.
/ Adjusts the volume.
Function Keys (Built-in computer) Works the same way as the Function key.
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