30-pin Connector

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Pin connections

Pin Signal Description
1 GND Ground (-), internally connected with Pin 2 on iPod motherboard
2 GND Audio and Video ground (-), internally connected with Pin 2 on iPod motherboard
3 Right Line Out - R (+) (Audio output, right channel)
4 Left Line Out - L (+) (Audio output, left channel)
5 Right In Line In - R (+)
6 Left In Line In - L (+)
7 ? ?
8 Video Out Composite video output (only when the slideshow mode is active on iPod Photo)
9 S-Video Chrominance output for iPod Color, Photo only
10 S-Video Luminance output for iPod Color, Photo only
11 GND Serial GND
12 Tx iPod sending line, serial TxD
13 Rx iPod receiving line, serial RxD
14 n/a not used
15 GND Ground (-), internally connected with pin 16 on iPod motherboard
16 GND USB GND (-), internally connected with pin 15 on iPod motherboard
17 n/a not used
18 3.3V 3.3V Power (+)
19 +12V Firewire Power 12VDC (+)
20 +12V Firewire Power 12VDC (+)
21 Accessory Indicator / Serial enable Different resistances indicate accessory type
22 TPA (-) FireWire TPA (-)
23 5 VDC (+) USB Power 5 VDC (+)
24 TPA (+) FireWire TPA (+)
25 Data (-) USB Data (-)
26 TPB (-) FireWire Data TPB (-)
27 Data (+) USB Data (+)
28 TPB (+) FireWire Data TPB (+)
29 GND FireWire Ground (-)
30 GND FireWire Ground (-)

External References

  • link to i0n1c's debugging cable missing here