Hitachi 55VG825 사용자 설명서

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Audio Source
Multi-Channel Television Sound will allow you to select
STEREO (a stereo broadcast), MONO (monaural sound)
used when receiving a weak stereo broadcast or
SECOND AUDIO PROG (SA) which may be a
secondary language, weather report, etc.

The sources received will be displayed at the top left
edge of the TV.  See example to the right for each
source received..

1.

Press the INFO button to display your settings.

Internal Speakers
This function is useful when setting up the external speakers. 

ON

Select this feature if using the internal speakers only.

TV as Center

Select this feature when setting up external speakers from a separate stereo system. The 
TV’s speakers will work as the center speaker.

OFF

Select this feature if you prefer to use only speakers from a separate stereo system.

Auto Noise Cancel
This function eliminates the noise between stations. If a channel is tuned and is noisy, this function will
automatically eliminate the audio for that channel.

Perfect Volume
This function will automatically adjust volume so each channel and input has the same average volume level.

Loudness 
This function turns loudness ON or OFF. It will improve the quality of both low and high frequency sounds when
listening at low volume levels.