Pin Number |
Pin Name |
Description | Color for HS45 | Color for ad-57 | WH-500 colors |
1 | Tip | Audio Left | Green | Blue | Blue |
2 | Ring | Audio Right | Red | Green | Red |
3 | Ring | Mic | White | Red | White |
4 | Sleeve | Ground | Clearcoat & Grnd | Gold/Gold-red | Green and Gold |
Pin 3 used for both Mic and C-video (multiplexed) in Nokia N95 and N900
Here are some examples of Nokia headset schematics.