Acer Aspire L Series User Manual page 31

• Earphones, headphones: Connect to the headphone jack
the front panel of your computer.
Note: To adjust the headphone volume, use the volume control
buttons on the keyboard. You can also adjust the volume by using
the volume icon on the taskbar at the bottom of your screen.
• External speakers: Connect to the audio-out/line-out jack
jack) located on the rear panel of your computer.
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