I'm currently trying to fix my headphones with a TRRS jack that I recently purchased. I'm using my multimeter and have figured out that green/blue wires together make up the left audio channel and red/black make up the right audio channel. How would I wire this? It seems that there are two grounds but I don't know which is which. Thank you in advance.
closed as off-topic by PeterJ, Tom Carpenter, uint128_t, vini_i, Leon Heller Jun 28 '16 at 6:41
This question appears to be off-topic. The users who voted to close gave this specific reason:
- "Questions on the repair of consumer electronics, appliances, or other devices must involve specific troubleshooting steps and demonstrate a good understanding of the underlying design of the device being repaired. See also: Is asking on how to fix a faulty circuit on topic?" – PeterJ, Tom Carpenter, uint128_t, vini_i, Leon Heller
No, you have only one ground. The last pin is used for MIC. Here's a picture where the pins are described.
Why did you buy a Tip, Ring, Ring, Sleeve? Almost all stereo jacks are Tip, Ring, Sleeve. Look here for more info.
To do this properly you would need to do a conductivity test of the old phone jack to the different colored wires. If that is not possible it is likely you can twist 1 wire from each side together and connect that to the sleeve. Then connect the remaining 2 wires (independently) to tip and ring. If by chance it works, you have a 50% chance the phase will be correct. And a 50% chance the left channel is on the left and the right channel is on the right.