Digital audio out, Speakers, Analog audio out – Vizio VF550M User Manual
Page 37: Lip sync, Reset audio mode
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Digital Audio Out
This option allows selection of the type of processing for the SPDIF (Optical connector) when used with a
Receiver/Amplifier/Home Theater system. Select to choose from OFF, Dolby Digital or PCM.
Note: With DTV input, the optical port will deliver 5.1 surround sound when broadcast. It will not deliver
5.1 surround with any other input selected.
Speakers
Turns the internal speakers On or Off. You may want to turn the internal speakers off when listening to
the audio through your Home Theater System.
Analog Audio Out
This option sets the volume control properties when using the RCA (white and red) connectors as audio
line out to connect a Receiver/Amplifier/Home Theater system. Choose from Fixed or Variable. When set
to Variable, volume from the external speakers will change according to the volume setting on the TV. If it
is set to Fixed, the volume can only be changed by the settings on the external stereo system.
Lip Sync
Lip Sync is designed to adjust the audio of the program being viewed so that it matches the movement of
the lips of someone talking on the screen.
VIZIO VF550M User Manual
Reset Audio Mode
Return all Audio settings to factory default. A screen will come up to confirm your selection or to cancel it.
Press either ◄ or ► to make the selection, and then press MENU to accept it.
Note: Only settings under the Audio menu will be reset.
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Version 3/4/2009
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