2–6 Maintenance and Service Guide
External component identification
Front componentsRear component
Item Component Description
(1) Audio-in (microphone) jack Connects an optional computer headset microphone, stereo array
microphone, or monaural microphone.
(2) Audio-out (headphone) jack Produces sound when connected to optional powered stereo speakers,
headphones, ear buds, a headset, or television audio.
Component Description
Vent Enables airflow to cool internal components.
✎The computer fan starts up automatically to cool internal components
and prevent overheating. It is normal for the internal fan to cycle on and
off during routine operation.