Part 1: Connector and Pins

Before i start, i would like to give credit to my sources, they were the ones that provided the primary information and made this blog possible.

1) Wikipedia

Who can live without it nowadays? It is seeking for donations now, i encourage those with the means to donate. Wikipedia provided so much general information that i dont know where to start. I can just get stuck in Wiki for hours reading it. Most importantly, i got the electric diagram of the TRS (Tip, Ring, Sleeve) plug off wikipedia. 

http://en.wikipedia.org/wiki/TRS_connector

Add: For information on what AWG, or wire gauge, stands for, check out this link on Wikipedia: http://en.wikipedia.org/wiki/American_wire_gauge

2) Pinouts.ru

This is a amazing site that has lots of diagrams. I referred to it together with the next site to figure out what are the ground, left and right pins on the iPod dock.

http://pinouts.ru/Devices/ipod_pinout.shtml

3) trevor’s homepage

A great guy, his projects are far more complicated and delicate. He got to an electrical engineer or something.

http://www.trevorshp.com/creations/dock2.htm

 

3.5mm plugs, or TRS connector

1. Sleeve: usually ground (it IS ground)

2. Ring: Right-hand channel for stereo signals, negative phase for balanced mono signals, power supply for power-requiring mono signal sources

3. Tip: Left-hand channel for stereo signals, positive phase for balanced mono signals, signal line for unbalanced mono signals

4. Insulating rings

 

Ipod Dock Connector

Below i think is the best schematic diagram i can find for our purpose. For more information, visit http://pinouts.ru/Devices/ipod_pinout.shtml to see what the other pins does. 

To make your LOD iTouch and iPhone compatible, you got to short pin 11 and 15. I will show how this is done later in the guide.

 

AWG guide to wire thickness