![](/images/new-backgrounds/1148708/14870861x1.webp)
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![](/images/new-backgrounds/1148708/14870861xi10.webp)
![](/images/new-backgrounds/1148708/14870861xi11.webp)
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![](/images/new-backgrounds/1148708/14870861xi16.webp)
![](/images/new-backgrounds/1148708/14870861xi17.webp)
Hardware Installation
2.5.8 | Audio Jacks |
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| 2 | 10 |
| 1 | 9 |
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| 10 | |
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| 9 | |
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| Front audio |
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| (J21) |
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| Front Audio (J21) | |||||
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Pin | Function |
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| Function | |
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1 | Mic+ |
| 2 |
| Ground | |
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3 | Mic Power |
| 4 |
| AuD_Vcc (Avcc) | |
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5 | AuD_R_Out |
| 6 |
| AuD_R_Return (GND) | |
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7 | N. C. |
| 8 |
| Key | |
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9 | AuD_L_Out |
| 10 |
| AuD_L_Return (GND) | |
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2
31