Optical audio input mac pro
I also went to see a Genius at the Apple Store - they did their tests and said "there's only two options:. We have encountered this issue 10 or 15 times and each required component level repair to resolve, the cause has been both spills and drops. Rebuilding this circuit is fairly straight forward if you have the proper tools. Give me the part number for the MLB and I will forward a pic of the schematic and the board view. I managed to download the boardview and schematic for this logic board and also the ones for A which is identical except for the memory layout.
Any suggestions which parts on the logic board I should start testing first? Headphone jack? Cirrus audio chipset? Search the schematic for audio, familiarize yourself with where the coronets are on the. The start testing, the measurements that you should have will be relevant to what power rail the audio circuit is on. I have the same problem with my macbook pro retina '15 and still don't know how to fix this problem, can anybody help me? This just happened to me with my newly acquired older macbook, which i have been loving btw, and after a little researching and seeing about the toothpick I first decided to plug in something external to the headphone jack again less toxic and potential damaging Show 11 more comments.
Sent it in for repair but, after a few hours work, they still couldn't find which component was faulty. I fixed my MacBook Air without sound hardware test was negative for problems by opening it up, unplugging and plugging the left and right speaker cables from the motherboard. This was done following iFixit's speaker repair steps as reference. I guess they became loose over time. Jan-Wolter Smit.
January 22 by aegorov March 4 by Radit P. Reece reecee. Check around the bottom right area of the logic board, to see if anything looks burnt. Beyond this, it would need logic board diagnostics and repair, so I would highly suggest sending it to a company who does this, otherwise you will most likely waste time and money on the tools required.
If that's the case, is there anything that can be done in future to avoid this from happening? I come across ones all the time where this causes a problem with the Mac, especially with powered USB hubs, since they do not usually have an inbuilt protection circuit, to prevent issues like this occurring.
Yes, that's the right area. The Cirrus chip is for the main audio functionality. Feel this area to see if the chip or anything else gets hot, indicating it is shorted to ground. Cirrus chip is very hot when computer is running - to the point of coming close to burning my finger if I hold it on there for 5secs.
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Is that normal? In fact, U is even hotter - can't touch for a second without burning myself. I take it that's not normal!? Both not normal, either the chip is internally shorted to ground or a component is shorted, then shorting a pin of the chip. Measure the continuity to ground of the pins of the chips, check on schematic whether the pins should be ground or not. Then remove the chip and check the pads to see if the short is gone. If it is, replace the chip and it should be resolved. If the short is not gone, systematically remove the components with a path to ground on the shorted line until you find the short.
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Show 6 more comments. I had similar problem with my MBP A Sound is back. Walker Young walkeryoung. This is bordering on the comical. Native core audio with simple digital audio output is one of the essential reasons that these laptops have always been the best for audio and music. I hate you apple! Never thought I'd every say that " When you align this to what Phil Shiller said, you can't not shake your head in disbelief: "Is it inconsistent to keep the 3.
Not at all. These are pro machines. But many users have setups with studio monitors, amps, and other pro audio gear that do not have wireless solutions and need the 3. I bet most of the people moaning about it have never even used optical audio and have little clue about what it does.
I'm with Apple on this one. I wonder how many people used this feature on the previous gen. Just because it's there doesn't mean it's useful. Be less mad at Apple and be mad at the industry that has more or less universally discarded the standard. TOSlink is hardly on anything being made any more. As an owner of 5. Guides Powerbeats Pro Apple's Beats brand in April unveiled the Powerbeats Pro, a redesigned wire-free version of its popular fitness-oriented Powerbeats earbuds.
AirPods Guide If you're new to AirPods, considering buying a pair, or just want to pick up some new tips. Best Camera Apps iPhone If you're looking to take your iPhone photography up a notch, make sure to check these out. See More Guides. Mac Pro Fall Apple Arcade Fall Thanks a ton bro, you gotta pause the music or it won't work. Took a couple tries but deff made my night. Why does Apple or who ever not bring a update for this problem since apperently so many people are suffering the same issue This was a lifesaver! Sound was not even coming through the earphones.
I shut down my MacBook Pro first, restarted and it solved that problem. Then proceeded per the instructions.
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This problem happened after I used a set of powered speakers with the computer for the first time. I tried fixing the problem as above plugging the power speaker jack back in. Then I tried again plugging in my iPhone's headphone jack instead. Then it worked! I guess some jacks are more compatible with the MacBook than others. It's strange whatever is going on on the inside.
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Didn't work for me. It switched to digital output. But still has red jack and muted sound. The above didn't work for me, nor restarting. The red light went out and "Internal Speakers" appeared in the list where it should be. Try it with or without the headphones plugged in, whichever works. Another thank you to go on the list. So grateful; like others I had to try it twice, but very relieved. Good to read alternative options in comments too.
Best wishes from Lisbon, Portugal. Joe here, blog owner. For what it's worth, the procedure I've outlined above doesn't always work for some reason. If you've read this far, I'd suggest trying IT2's solution from a few lines up. I was going bonkers but it worked. Sending a happy hug. Can you handle another expression of gratitude?http://www.stashkaraoke.com/includes/bisir-hydroxychloroquine-und.php
Tech Blog – Mac Headphone/Optical Digital Audio Output
Have had the problem in the past, didn't remember what I'd done to remedy, tried this and it didn't work and second time it did. Thanks much for sharing! Woo Hoo! Took a few times. Like others, I missed the part about turning off the sound. Finally worked with IT2's solution. With headphones in, hit mute on and off, pulled out the headphones and I have speakers again! Just had this exact thing happen.
Did a quick google search and came across your site. The fix worked exactly as you described Joe. This didn't work for me. I unplugged the headphones and it set itself back to optical.
IT2's solution did not work either. I just fixed the problem, after none of the above worked, by just plugging in and unplugging the headphones like 15 times. If I pull out headphones, yes, it changes to digital out, but then the icon greys out again and I am once again unable to alter the sound levels. However, I am please that I can at least use headphones or speakers cuz I am currently deep in a rustic cabin deep in the rainforest and my laptop is my sole amusement once the sun goes down. I will try someone else's suggestion of plugging and unplugging the external speakers fifteen times next as that was what was last plugged in.
Thanks so much for putting this up. I would have never been able to work that out! Thanks again. None of these worked for me, but eventually I jammed a plastic tube the inside of a pen into the socket and rotated counterclockwise. After a few tries it worked! Definitely a stuck switch.
How to replace the missing optical-digital audio output on newer Macs | Macworld
Saddly, It didn't work! Help me! This has been annoying me for a few days now and with your advice, YOU fixed it for me in less than a minute! However the Toothpick trick DID work!! I thank you so much for this link! Thank you so much. Your help was unbelievably perfect. Now I can play my music. Thank you for your excellent help!!!! I am so happy! Fiddled with it for ages!
And the only way I could find this was by print screening the mute sign and using google image search! A fix: after a lot of fiddling with no success, I discovered that when I plugged into the sound output with headphones and changed my sound settings to use audio port for sound INPUT, the internal speakers kick in. Had an old set of bad headphones, cut off the jack, and used that jack plugged in, with the INPUT setting, and get speakers to work. Or buy a jack at Radio Shack for a few bucks if you have no defective phones laying around?
Good luck! I had to try a couple of different times, paused the music, then unplugged the headphones, but it did finally work! Thanks so much! I followed the rules and it didn't work. I did a slight variation in that whilst the song was playing in i-tunes i pulled the headphones out and it then started to play through my internal speakers again!
I am happy camper once again! Thank you SO much.