No sound from MacBook speakers ok from headphones.
Anyone have a circuit diagram info for this model that shows where the audio splits between the headphone and the MacBook speakers. I have audio from the headphones but not from the speakers. The switching works from the headphone socket. System preferences-switches from headphone to MacBook speakers when removing headphones from socket. This fault did occur after a spillage. Have cleaned all of the logic board but a little smoke did show at the time of the spillage. All other functions are working perfectly
3 
Thanks for your input but the audio jack and the switching is operating as it should be. This is a fault within the area of the audio processing/amp to the speakers. Audio is fine to headphones and in air play. Anybody with a circuit diagram that I can access?
Paul Lugg さんによる