820-3023 no power up. green light on charger

[speedyaction]

i have here water damaged macbook air 820-3023 and is not powering up. i measure some rails and i got
PPBUS_G3H - 8.36v
PPBUS_S5_HS_COMPUTING_ISNS - 0.00v
PPDCIN_G3H - 16.87v
PPVRTC_G3H - 3.4v
PP5V_S5 - 5v
PP5V_SUS - 0.000v

 

[aprendiz]

Corrosion around U5400 or R5400, broken trace, check if there is continuity from PPBUS_G3H to R5400....