Check if the audio codecs have been man handled / replaced before you. The reason for this concern is that the audio codecs have special and reserved I2C / SMBUS IDs. Respectively, they must be purchased with the same exact markings from the offshore vendors otherwise the audio codec will not respond to the wrong addressing. I recall that we had to source from different vendors for a similar case. In the Texas Instruments datasheet (believe you are facing the same audio codec) - there is a mention of the I2C address values. From memory, the schematics reference a different address so appears to be a pseudo-custom audio codec from TI for Apple. This discussion is for a macbook with onboard codec. You have a daughterboard version.
PS: I recall this small board. We had the same and it had a shorted cap onboard. Took a few minutes to locate the bad boy and was repaired. The same daughterboard is > $100 on Aliexpress. No idea why. Confirm the full part # on this board to compare notes. My database shows a -03 and also a -04 version of this daughterboard. No idea on the differences at this time. Try an internet boot of the OS to rule out any local s/w corruption issues.
-
-
Suggest to blow out the headphone jack connector with compressed air. To remove any possible debris that could be blocking the use of the speakers.Leave a comment:
-
Macbook Air A1932 no sound from speakers
Good afternoon All
i have a Macbook Air A1932 with no sound from speakers, but it does have sound from jack plug with corded earbuds plugged in
i have checked left and right amps in diode mode all all checks out ok, i think it is unusual for both speakers to stop working together but i have no history regardin this mac
i have both 820-01521 and 820-01124 boardview and schematics
Has anyone encountered this before?
kind regards
Steve
-
Hi,
Iām troubleshooting a MacBook Pro 16" A2485 (820-02382, M1 Max) on macOS (Tahoe). Headphones work fine (3.5mm jack + Bluetooth), but internal speakers do not work at all.
When I try to play any system sound (e.g. afplay /System/Library/Sounds/Glass.aiff), it fails with:
AudioQueueStart failed ('what')
Logs from coreaudiod show the Built-In Speaker device trying to start and then failing immediately, e.g.:
BuiltInSpeakerDevice: starting ā IOA2UCDevice::StartIO ... Error: 0xE00002E9 ā Underlying device failed to start with error: what
...02-22-2026, 06:32 AM -
hi
i whant unlock macbook pro A1932 2019 whit ibridge 9,3 ;
i change efi files find on files mina T2 activator 1,4 and use for activation mina T2 activator 1,3 , but fault ssh?
i use mina T2 ramdisk activator 1,0 and 3,0 . but whon t work ?
have you other programme or method compatible whit this macbook ibridge 9,3 for bypass ?
I need help or information?
Does anyone have the minat2 activator 1.4 software?
Or did they use it for bypass macbook air 2019 a1932 with new ibridge 9.3?
Thank yo...03-12-2025, 10:14 AM -
Apple MacBook Pro 13 M1 820-02020-A boardview 820-02020 V1.0 Boardview
Apple MacBook Pro 13 M1 Late 2020 A2338 820-02020 T668 MLB
Apple MacBook Pro 13 M1 Late 2020 A2338 820-02020 T668 MLB Physical scanning image
Apple MacBook Pro 13 M1 Late 2020 A2338 820-02020 T668 MLB Location map... -
Hi guys need some help on this Macbook
History of the fault :
There has been a some sort of power spike or short on one of those rails PP5V_G3S or PP5V_MAIN_ALSCAM_F . They are connected together via L8570 Inductor with was completely blown away from the board as well as small amount of trace.
I replaced the inductor and repair the track turned the MacBook on and noticed stray away it was warm . Camera still didn't work at this point so back with multimeter and found the LCD flex cable had a short . Replace with new one and the camera came back to live...01-12-2026, 09:43 AM -
so i took out one of my spare gigabyte ep35-ds3r mobos from storage for use to do some cpu, ram and video card testing of stuff i bought from ebay and got for free from momaka. he bought 50 e8400 cpus for cheap from ebay some years ago and i decided to help him relieve him of some of his supply since he had waaaay too many!!
what did we say about hoarding too much stuff and depriving others of them?! *cough* socialism *cough* lol! 
i had to blow some dust off the board and heatsinks with the datavac as i didnt clean it up before putting it in storage. after finishing...
Leave a comment: