Samsung LED 5070 Series E-Manual page 52

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Auto Volume
To equalize the volume level on each channel, set to Normal.
Night: This mode provides an improved sound experience compared to
Normal
N
To use the volume control on the source device connected to the TV,
set
control of the source device may not be applied.
◀
mode, making almost no noise. It is useful at night.
Auto Volume to Off on the TV. Otherwise, a change to the volume
English
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