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I have scoured the internet trying to find out why both my internal microphone and speakers have disappeared from the input output in sound preferences? I have tried all resets everyone have suggested to do with no luck, I think I have narrowed it down to the i/o board that my 3.5mm headphone jack is connected to, but not sure? Has anyone else had this happen?
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@alsadler - This series has the headphone jack on the main logic board, so the I/O board won't be an issue here.
Did you even try plugging in a micro plug speaker or headphone in yet to see it the jack is working? I would start there as that could narrow down the fault.
Did you have a spill into the keyboard? As it's possible the liquid got onto the logic board causing some corrosion. Follow this guide to take it out so you can do a deep inspection looking for signs of damage MacBook Pro 15'' Retina Display Mid 2015のロジックボードの交換. If you see something odd take two picks one nice and tight and in focus and a second backed off a bit so we can ID the location within the logic board. Post them here so we can see them.
I see in your avatar you are a sailer were abouts do you sail?
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@danj Yes I did try, and also because I hadn't used it for some time I tried inserting and removing multiple wired headphones many times to see if the jack was corroded? Sadly yes I did have a spill, but it was after the microphone/speakers had disappeared from the sound preferences. Looking for any damage to logic board now.
@danj So I have the logic board out now and I am seeing some bad green corrosion all around that part of the board. Is there a way I can send you some pics?
@alsadler - You can post them in a fresh answer by clicking on the menu bar far right icon (a landscape picture of sorts) click on the top left button in the toolbox once it's prevent here, you'll need to click on it again to enter its tag into the answer window. Save the answer and convert it to an update, done!
Sorry @danj, I missed your question in your original reply. Yes I am a live aboard cruiser, 10 years of sailing the Lesser Antilles now. Currently in Martinique. Ok, I'll try and add the pics for you.
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Were you using any headphones just before this issue happened, or had any reason to disconnect any internal connections? Or is this just a sudden occurrence? Try running diagnostics at boot by holding down the D key until the globe appears and follow the prompts and see what it says (Have the charger plugged in during this process). I presume SMC & PRAM resets have been tried without any success.
livfe さんによる
@livfe No, haven't used headphones for years. Always used a bluetooth device. I first noticed the problem one day (a few months ago) when I turned on my MacBook and did not hear the usual startup sound. I thought it had something to do with using bluetooth devices? Removed all devices, no difference. So I have been doing internet searches and trying all the software resets everyone suggested. But about a year ago now, I did have to replace the MagSafe power cable (110v) as I found the one that came with the laptop was extremely hot, both the connection with the orange/green light on it and that whole side of the MacBook to the headphone jack.
Al Sadler さんによる
@alsadler The correct charger should be an 85w Mag safe II T-Type.. Did you check that the charging port is clean of dirt and debris as this can also make the charger get 'hot' and overheat. A PRAM reset (OPT+CTRL+P+R) and let it boot chime 2x then release, that should make it chime again. I use the same model and the boot chime sometimes has gone away also after using a BT headset, odd yes, Apple thing no doubt.
livfe さんによる
@livfe So for the charger I went to an Apple authorized store here in Martinique and got the replacement, as soon as I did that the hot plug and left side of MacBook has stopped. I would think the one I had was also Apple as it came with the laptop 6 years ago? I know I've tried the PRAM reset before, and as I said earlier, I don't get those boot chimes anymore so I don't know when 2x has happened?
Al Sadler さんによる
@alsadler Do the PRAM reset again and keep holing the keys to let it reset 2 or 3x as that usually brings back the chime, which in turn may bring back the speakers in the audio panel. Failing that, the next step I would try would either be a clean install or installing a system to an external drive and boot from that to see if the speakers appear again. If that failed then there is the probability that there may be a board level diagnostic required and a potential professional fix required. If you do go for a clean install, remember to 'select all devices' from the view option in disc utility and erase the drive from the top level. Of course make a backup of your files beforehand as they will all be erased in the process.
livfe さんによる
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