Sharp PC-AV18 Series Operation Manual page 68

Connecting Analog Audio Equipment
Audio Output Jack
You can adjust the output volume on Windows by sliding the volume lever
appearing when clicking the speaker icon on the taskbar.
Connecting Headphone
Use the headphone with an impedance of 8Ω or more. (32Ω is recommended).
Audio Output Jack
Stereo
Mini Plug
Analog Audio Cable
Stereo
Mini Plug
White (L)
Red (R)
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