Hi, Have this board for repair . Machine was liquid damaged around u7000, U6903, j6951, C4914 area.
replace both IC's and clean board those places J6951 ad C4914 they are looks ok after cleaning .
Laptop now is trying to boot chasing voltage from 5v to 20 I can see it is draining current showing apple logo and cut off showing than 20V and 0.00A without battery.
With battery and charger is looping on apple logo.
L9601 I am getting 3v3 measured resistance on this line ( 67ohm ) to the ground
c7080 1.8V
R7022 20.12V
R7061 12.64V
Coils around CPU I am getting only voltage on L8102 0.95V dropping to 0V once the loop sequence is over.
Any idea on this ?
Thanks
replace both IC's and clean board those places J6951 ad C4914 they are looks ok after cleaning .
Laptop now is trying to boot chasing voltage from 5v to 20 I can see it is draining current showing apple logo and cut off showing than 20V and 0.00A without battery.
With battery and charger is looping on apple logo.
L9601 I am getting 3v3 measured resistance on this line ( 67ohm ) to the ground
c7080 1.8V
R7022 20.12V
R7061 12.64V
Coils around CPU I am getting only voltage on L8102 0.95V dropping to 0V once the loop sequence is over.
Any idea on this ?
Thanks
