Good morning everyone,
I Have a MacBook air logic board that first came in for no power.
I removed ssd and wireless card.
With charger I got only orange light, and if I press power button the light became green just for 2 seconds (the system feels when I press power button).
The issue it's: no boot, no power on, I have v core, 1.7v, but as I plug the charger, green light 2 seconds and orange light with fan stuck spinning.
Nothing except cpu on board is hot, no corrosion, I haven't found any short, and I checked that voltage rails checked and are ok:
PM_SLP_S5_L – 3.3v
PPBUS_G3H
PPBUS_S5_HS_COMPUTING_ISNS
PPBUS_S5_HS_OTHER_ISNS PP5V_S5
PP5V_S4RS3
PP5V_S0
PP3V3_S5
PP3V3_S4
PP3V3_S3
PP3V3_S0
PP1V8_S3
PP3V42_G3H
PPVRTC_G3H
PP5V_S5
PP5V_S4RS3
SMC_ADAPTER_EN
PCH_SRTCRST_L
Issues:
PM_SLP_S4_L -> 0v
PM_SLP_S3_L -> 0v
Can someone help me to fix that crazy board? thank you
I Have a MacBook air logic board that first came in for no power.
I removed ssd and wireless card.
With charger I got only orange light, and if I press power button the light became green just for 2 seconds (the system feels when I press power button).
The issue it's: no boot, no power on, I have v core, 1.7v, but as I plug the charger, green light 2 seconds and orange light with fan stuck spinning.
Nothing except cpu on board is hot, no corrosion, I haven't found any short, and I checked that voltage rails checked and are ok:
PM_SLP_S5_L – 3.3v
PPBUS_G3H
PPBUS_S5_HS_COMPUTING_ISNS
PPBUS_S5_HS_OTHER_ISNS PP5V_S5
PP5V_S4RS3
PP5V_S0
PP3V3_S5
PP3V3_S4
PP3V3_S3
PP3V3_S0
PP1V8_S3
PP3V42_G3H
PPVRTC_G3H
PP5V_S5
PP5V_S4RS3
SMC_ADAPTER_EN
PCH_SRTCRST_L
Issues:
PM_SLP_S4_L -> 0v
PM_SLP_S3_L -> 0v
Can someone help me to fix that crazy board? thank you
Comment