MacBook Air A1932

[TOMÁŠ]

Hi, I've never worked with a MacBook before, so I need some advice.
I have a MacBook Air A1932 (820-01521). When I plugged in the charger with an amp meter, it showed 19.7V and 1.9A, which indicates that it's charging, but when I press the power button, it doesn't turn on. So, I disassembled it, disconnected the battery, and plugged in the charger again. It showed 19.6V and 0.04A, and pressing the power button had no effect—no current draw at all. Then, I removed the motherboard, connected the charger again, and got the same results. I took a multimeter and checked all the coils, and everything seemed fine.

Based on what I found online, I measured the following:

- PPBUS_G3H: 12.62V
- PP3V3_G3H: 3.3V
- PP3V3_G3H_RTC: 3.3V

- PP5V_G3S: 5V
- PP3V3_G3S: 3.3V
- PP1V8_G3S: 0V / 1.8V

- PP1V8_S5: 1.8V
- PP3V3_S5: 3.3V
- PP1V1_SLPS2R: 1.1V
- PP1V1_SLPDDR: 1.1V
- PP1V8_SSD: 1.8V
- PP0V9_SSD: 0.9V
- PP1V_PRIM: 0V
- PPVCC_PRIM_CORE: 0V

I didn't touch anything, but suddenly I felt some heat near the PD controller, and the charger showed 5V and 0.4A. A thermal camera pointed to the PD controller, so I replaced it. The heat is gone now, but I still get 5V and around 0.3A. I'm here hoping someone can help me with advice. Otherwise, I plan to replace the second PD controller as well. I'd really appreciate any guidance. Thanks!

Also forgot to mention all coils still fine.

[mon2]

This may be your case:

https://repair.wiki/w/MacBook_Air_A1...cycling_repair

reference:
https://repair.wiki/w/MacBook_Air_A1932

Review this article:
https://logi.wiki/index.php/CD3215_Bootup_Sequence

[TOMÁŠ]

This may be your case:

https://repair.wiki/w/MacBook_Air_A1...cycling_repair

reference:
https://repair.wiki/w/MacBook_Air_A1932

Review this article:
https://logi.wiki/index.php/CD3215_Bootup_Sequence

Thank you, will have a look Sunday.