Sony KP-57WV600 Operating Instructions Manual page 76

Select to turn on the TV speakers.
Select to turn off the TV speakeis and Ii&en to
the TV's sound only through your external
audio system speakers.
This option can be set only when the Speaker option is set
to OR.
The TV's speakers are turned off, but the audio
output
from your audio system can still be
controlled by the TV's remote control.
The TV's speakers are turned off and the audio
output of the TV is fixed. Use your audio
receiver's remote control to adjust the volume
(and other audio settings) through your audio
system.