Sony FD Trinitron WEGA KD-32FS130 Operating Instructions Manual page 41

Speaker
Use the _ or _" buttons to highlight one of the following options, then press
Custom selection CE) to select it.
of audio output On: Select to listen to the sound from the TV speakers with or
source without a separate stereo system.
Off: Select to turn off the TV speakers and listen to the TV's sound
only through external audio system speakers.
Audio Out
Use the _ or @ buttons to highlight one of the following options, then
Use to control press (2D to select it.
theTV's w_lume Variable: Adjust the volume through your TV.
through a stereo Fixed: Adjust the volume through a connected stereo.
_ You carl only set Audio out settings When you have set Speaker to QfL