An Apex television allows you to customize a wide range of video and audio settings. If you want to reset the settings, you don't need to change them back manually. Rather than changing the settings individually, you can restore the settings using the TV's reset default function in the Setup menu. Once the default settings have been restored, you can change the individual settings to suit your tastes.
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Press the "MENU" button on the remote control to open the main menu.
Highlight "Setup" using the left or right arrow buttons.
Scroll down to "Restore Default" using the up or down arrow buttons.
Press the right arrow button to open "Restore Defaults" and select "Yes."