![](/images/new-backgrounds/1213418/213418229x1.webp)
8
Connector pin assignments
Audio-in (microphone)
Pin | Signal |
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1 | Audio signal in |
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2 | Audio signal in |
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3 | Ground |
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Audio-out (headphone)
Pin | Signal |
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1 | Audio out, left channel |
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2 | Audio out, right channel |
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3 | Ground |
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Maintenance and Service Guide |