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251 bytes added ,  16:53, 23 October 2018
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Because of the existence of the USB ethernet adaptor, that means there exists a way to use the port in host mode probably through USB OTG or something similar.
 
Because of the existence of the USB ethernet adaptor, that means there exists a way to use the port in host mode probably through USB OTG or something similar.
 +
 +
Teardown of Vita OLED dock [https://twitter.com/Jpk25Cr/status/1054750346734559232 here].
    
{| class="wikitable"
 
{| class="wikitable"
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|-
 
|-
 
| 3
 
| 3
| Host detect?
+
| Analog Ground (TRRS Pin 3)
| GND on Vita and charger cable, connected to something on USB ethernet adapter
+
| For stereo output
 
|-
 
|-
 
| 4
 
| 4
| Digital audio out
+
| Right Channel Audio (TRRS Pin 2)
 
| To audio codec IC
 
| To audio codec IC
 
|-
 
|-
 
| 5
 
| 5
| Digital audio out
+
| Left Channel Audio (TRRS Pin 1)
| Same net as pin 4
+
| To audio codec IC
 
|-
 
|-
 
| 6
 
| 6
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| 10
 
| 10
 
| Audio?
 
| Audio?
| To audio codec IC
+
| To audio codec IC, not seen used anywhere.
 
|-
 
|-
 
| 11
 
| 11
| ?Headset GND?
+
| Accessory Enable?
| To Syscon (C11), connected on USB Ethernet
+
| Digital signal. Pull-down to GND on dock. To Syscon (C11), connected on USB Ethernet
 
|-
 
|-
 
| 12
 
| 12
| ?Headset?
+
| TRRS Pin 4
| To Syscon (F9), connected on USB Ethernet
+
| Digital signal. To Syscon (F9), connected on USB Ethernet
 
|-
 
|-
 
| 13
 
| 13
 
| ?
 
| ?
| To Syscon (G4)
+
| To Syscon (G4), not seen used anywhere.
 
|-
 
|-
 
| 14
 
| 14
| ?GND?
+
| GND 1
| GND on Vita and USB ethernet adapter, N/C on charging cable  
+
| GND on Vita and USB ethernet adapter, N/C on charging cable and dock
 
|-
 
|-
 
| 15
 
| 15
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|-
 
|-
 
| 16
 
| 16
| GND
+
| GND 2
| GND on Vita, N/C on USB ethernet and charging cable
+
| GND on Vita, N/C on USB ethernet and charging cable, small cap to GND on dock
 
|-
 
|-
 
| 17
 
| 17
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|-
 
|-
 
| 19
 
| 19
| GND
+
| GND 3
| GND on Vita and charging cable, N/C on USB ethernet
+
| GND on Vita and charging cable, N/C on USB ethernet, large cap to GND on dock
 
|-
 
|-
 
| 20
 
| 20

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