Chosen Solution
I detached rear speaker connector, right speaker connector, left speaker connector and microphone connector. But this macbook still pick up sound. Where is other mic?
First are you sure this is your system? If it is, then your system only has the one internal microphone which is located next to the left speaker connection. Here’s an image of the connection:
You would need an external microphone plugged in via the 3.5-mm analog/optical combo ports for headphone or Aux connections. Or, a USB DAC unit which then has the microphone connected. Or, lastly a Bluetooth headset connected wirelessly. I’m suspecting you have something else going on here. If you’re sure none of the other options are connected. What is the sound? Please describe it.
