[Captivate General] bleerii:
3.5mm Audio/Mic/Video out pin out - compilation of info​

After searching on here, XDA and other sites, this is a compilation of accurate data I have found Please comment with known good info and I will update this post so it can be used as a single source rather then having 20 different post with hijacked conversations.

Information desired to be compiled into this thread consists of technical pin out of the 3.5MM jack on the Samsung Galaxy S: Captivate i897 and Vibrant T959 (let me know which others and I will add them as compatible).

3.5mm pin out:

1.LEFT EARPHONE

2.RIGHT EARPHONE

3.GROUND

4.MIC

***Note: I have not hacked up a factory earphone/mic/button to confirm this, I will once I get a spare set. This is the only sure fire way I know to be certain as to the OEM wiring and button configuration, NO/NC (Normally Open/Normally Closed) switch, what wires are made (connected/shorted) by the switch to achieve the pause, answer call/terminate call when pressed. This pin out makes sense because a standard headphones without a mic operate normally and the only other way that would be possible would be to have ground and mic switched, and I don't believe that is the case due to info I have found, but not yet tested concerning Video Output.

Audio/Mic compatibility

I have found that the Galaxy S audio output and mic input are wired the same as a.....are you ready for this???? Same as the old trusty Sharp Sidekick... I was shocked to find this but shouldn't be soo since there are only so many options possible to achieve this functionality with a limited number of connectors. Let me know what others are fully compatible and tested. I will add them to this post so it will remain easy to refer to.

So here the list starts: (full OEM functionality only)

Sharp SideKick earphones/mic/button

Audio/Video compatibility

Speculated pin out (will update once tested). This makes sense because it offers the simplest way to share an connector using an electronic switching mechanism triggered by the TV Out switch in the OS settings.

3.5mm pin out:

1.LEFT EARPHONE

2.RIGHT EARPHONE

3.GROUND

4.Video

I have none yet as I have not purchased any to test. I did test with a set of A/V cables for a digital camcorder I have but they were not compatible. I am not listing or mentioning the brands that do not work correctly. If plugs need to be switched (yellow/Red, or white/yellow) I do not want to add to this until I am able to test correct pin out for A/V. Once the pin out is confirmed, I will add A/V cables that work with plug switching.

The goal is to create a "Master List" if you will of compatible/fully function earphones/mic (with or without button), and A/V cables. If button is inline with the earphones it should work the same as OEM, if it does not then please note and I will note that in the list also.

I will consider making another "Master List" for the USB/Charging/HDMI once i have completed testing and a clear understanding of the usb charging pins/voltages etc. There is much info on other posts concerning USB charging, jumping pins 2 and 3, etc. I can say at this time I have only been successful charging in (charger mode) with the OEM cable and charger and with the AT&T MicroUSB charging (only) cable and and most USB port wall warts and car changers. AT&T charging cable is available Here. (Will add link when my account is verified :confused: (been a member since 2009 and had a HTC 8125.

I have also confirmed charging loads, current draw in both USB mode and Charging mode.

More to come. Please feel free to offer good tested and proven compatible I/O.

Barry

Search terms: Audio Video Mic Samsung "Galaxy s"