Sharp XG-PH50X - Manual (Page 77)

Useful Features
-73
Speaker Setting
This function allows you to turn the audio out-
put of the internal speaker on or off when the
projector is connected to an external amplifier.
Menu operation Page 56
Example: “Audio” screen menu
Description of Speaker Settings
Selectable items
ON
OFF
Description
The audio signal is output from the internal
speaker.
The audio signal is not output from the
internal speaker.