Sony KP-XR432K90 Service Manual page 119

On: Select to listen to the sound from the projection TV speakers alone.
Speaker
Off: Select to turn off the projection TV speakers and listen to the
Custom selection
projection TV's sound only through an external audio system's speakers.
of audio output
SAVA SP: Select to turn off the projection TV speakers and listen to the projection
source
TV's sound only through the Sony SAVA series speaker system. You can
adjust volume, muting, "Surround Mode," and "Super Woofer Mode" with the
projection TV's remote control. (see "SAVA SP Control" below)
"Audio Out" can only be set when "Speaker" is set to "Off."
Audio Out
Fixed: Sound output is held at a fixed level through the audio system.
Easy control of
Use the AV receiver's remote control to adjust the volume.
volume adjustment
Variable: Sound output varies according to the TV settings.
Useful when you want to use your remote control to control the output of a
separate audio system.
"SAVA SP Control" can only be set when Sony SAVA speaker system is
SAVA SP Control
connected to the AUDIO (VAR/FIX) OUT connectors and "Speaker" is set to
Controls Sony
"SAVA SP." (see "Speaker" above)
SAVA speaker's
You can also adjust the SAVA speaker's volume using VOL +/– of the projection
mode.
TV's remote control.
Surround Mode: Select to activate the SAVA Speaker's surround mode.
Super Woofer Mode: Select to activate the SAVA Speaker's super woofer mode.
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