Apple MacBook Air 13-Inch A2179 820-01958 Schematic & Board View
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Apple MacBook Air A2179 820-01958 Schematic & BoardView...
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Hi all, working on a MacBook Air A2179 EMC 3302 stuck on Apple Logo. Came in dead. There was spillage on both of the USB-C Charge port connector. I replaced the cap 4.7UF 25V near the speaker connector as it was corroded. Replaced USB-C connector with a new one & now I get display. The problem is that gets stuck on the Apple logo & sometimes it even boots up into OS after a very long time & the CPU fan spins fast. Kindly any repair tips will be appreciated. Do these logic board have BIOS, so that I could do a clean up or load a new dump. Thanks in advance. -
Hi.
Long shot but does anyone have a schematic & boardview for the audio board+power button on a Macbook A2179?
There is a shorted cap on mine and I need to know if I can safely remove it or whether I need to replace it and with what capacitor.
Many thanks. ...08-21-2025, 02:38 PM -
Hello,
This special tool from Apple is used to recover data from Macbook A1706. I've been using it for a while but it stops working. When connecting Thunderbolt 3 between the tool and working Macbook, Macbook should prompt "new device detected, allow or not"... but it doesn't.
Has anyone ever experience this ? It's not a cabling or power supply issue, some IC have stopped working but not sure which one. Probably the one that manager thunderbolt 3
Thanks
Claude... -
Hi everyone,
I have a MacBook Air A2179 in my hands that had power problems (5V to the USB-C port unstable).
I noticed there is liquid at U3200 and U3100 and have replaced them.
PP1V5_UPC_X_LDO_CORE : 1.575V
PP3V3_UPC_X_LDO : 3.280V
PP3V3_G3H_RTC: constantly fluctuating from 0.5V to 3.284V
I have isolated R6979,
Pin 1: 3.280V stable
Pin 2: 0.447 (diode)
PPBUS_G3H: 12.28V (with R6979 isolated)
PPBUS_G3H: fluctuates 5V -> 4V -> 6V -> 12.28V(when R6979 is present), and repeats in a loop
What should I do next?
...10-29-2025, 06:02 AM