External component identification
Front components
Item | Component | Description |
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(1) | Power light | ■ On: The computer is on. |
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| ■ Blinking: The computer is in the Sleep state. |
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| ■ Off: The computer is off or in Hibernation. |
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(2) | Battery light | ■ On: A battery is charging. |
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| ■ Blinking: A battery that is the only available power source has reached a |
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| low battery level or a critical battery level. |
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| ■ Off: If the computer is plugged into an external power source, the light is |
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| turned off when all batteries in the computer are fully charged. If the |
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| computer is not plugged into an external power source, the light stays off |
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| until the battery reaches a low battery level. |
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(3) | Drive light | Blinking: The hard drive or optical drive is being accessed. |
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(4) | Consumer infrared lens | Receives a signal from the remote control (provided with select models only). |
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(5) | Connects an optional computer headset microphone, stereo array | |
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| microphone, or monaural microphone. |
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(6) | Produces sound when connected to optional powered stereo speakers, | |
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| headphones, ear buds, a headset, or television audio. |
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Left-side components
Item | Component | Description |
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(1) | Power connector | Connects an AC adapter. |
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(2) | AC adapter light | ■ On: The computer is connected to external power. |
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| ■ Off: The computer is not connected to external power. |
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(3) | USB ports (2) | Connect optional USB devices. |
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(4) | Optical drive | Reads optical discs and, on select models, also writes to optical discs. |
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(5) | Optical drive light | Blinking: The drive is being accessed. |
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Maintenance and Service Guide |
