Macbook A1502 not powering on

[Roll]

Hello guys, i have a Macbook Pro A1502 820-3476-A that has no orange light and does not power on.
I tried replacing the charging port - no difference.
Board looks very clean, no signs of corrosion.
It takes 0,01 A from power supply.
DCIN = 16,5 V
PP3V42_G3H = 3,4 V
PPBUS_G3H = 12,3 V
Adapter sense = 3,4V
SYS_ONEWIRE is 2,9 V. Is that correct value?

Any ideas where to look?

Thanks

[mon2]

Re: Macbook A1502 not powering on

PPBUS_G3H = 12,3 V

SMC is not working. If working, this should be 12,56

reference reading:

https://repair.wiki/w/A1502_2013-201...ook_Pro_Retina

1) Check the voltage to ground on the SMBUS lines (SDA & SCL) of:

SMBUS_SMC_5_G3_SCL
SMBUS_SMC_5_G3_SDA

2) Check the voltage to ground of SMC_RESET_L

Post your measurements.

[dellxps15]

Re: Macbook A1502 not powering on

DCIN = 16,5 V
PP3V42_G3H = 3,4 V
PPBUS_G3H = 12,3 V
Adapter sense = 3,4V
SYS_ONEWIRE is 2,9 V. Is that correct value?

try another dcin board (if no green orange light on charger).

fixed one today. it was dc-in board not working properly. after green light smc will bost ppbus.