* Turn the TV on.
* Press the {MUTE} button three times on the remote.
* Press the {MUTE} button again on the remote and hold.
* Then press the {MENU} button on the TV's front panel.
* Release both buttons
* There should be a letter "S" on the upper right of the screen.
* Press the {MENU} button on the TV's front panel again.
* Use the {CH+} or {CH-} buttons to select a setting.
* Use the {VOL+} and {VOL-} buttons to adjust the value.
* Turn the set off to exit the Service Menu.
