Fix Your Stuff Community Store

The April 2014 update of Apple's 13" MacBook Air features refreshed dual-core i5 and i7 processors, plus slightly increased battery performance.

313 Questions View all

Options

No audio device detected in system report (liquid-damaged Mac)

I adopted a liquid-damaged MacBook Air which was completely non-responsive.

I took it apart and saw signs of liquid intrusion, with some corrosion around the I/O ribbon cable connection (mostly on the logic board side but both needed cleaning). I tried cleaning the existing cable and connectors and managed to get it to boot, but not charge.

The cable looked like it caught the worst of the corrosion so I replaced it and now the laptop works normally aside from not detecting an audio device (About this Mac > System Report shows no audio device: audio controls are greyed out in System Prefs).

I’ve reset PRAM just for fun with no results. So, no speakers, no headphone, no mic, no nothing related to audio.

Can replacing the I/O board possibly solve this problem, or is the core audio logic on the main logic board? I couldn’t find a definitive answer to this so I thought I’d ask the Fixers…

Answered! View the answer I have this problem too

Is this a good question?

Yes No
Score 0
Add a comment

1 Answer

Filter by:
Most Helpful Newest Oldest
Chosen Solution

Options

I/O board is part of the audio system circuitry, thus although it’s not guaranteed audio will work after replacement, it’s very reasonable to start with that, it might entirely solve your issue. Good luck !

Was this answer helpful?

Yes No
Score 3

1 Comment:

Yes! Thats the first thing to do as well as the cable! If you look at the part here you'll see the board has the Cirrus DAC chip on it (backside) right behind to headphone jack.

- MacBook Air 13" (Mid 2013-2017) I/O Board

-MacBook Air 13" (Mid 2013-2017) I/O Board Cable

And here's the IFIXIT guide to help you: MacBook Air 13" Early 2014 I/O Board Replacement

by

Add a comment

Add your answer

Jason Herring will be eternally grateful.
View Statistics:

Past 24 Hours: 0

Past 7 Days: 0

Past 30 Days: 0

All Time: 53