820 3476 green light orange light No Chime, No Display, No Fan

funtotos

New member
Hello,
I have a macbook retina 2014 820 3476 which has received liquid.
when I plug the charger I get a green light and just after the orange light the fan does not turn.

I am not detecting any short circuit around u7100
I replace u7100

PP3V42_G3H = 3.42V
PPBUS_G3H = 1.4V
PP5V1_CHGR_VDD = 5.5V

PPDCIN_S5_CHOP = 15.15V

CHGR_ACIN = 0.6mvV :eek:

pin 27/28 and :0 Ohms , on pin 17/18 :4 Ohms
pin 27/28 14.51v
thanks;)
 
Last edited:

funtotos

New member
no green lights. i still replace u7100 (green light ok with orange light) and i took the measurements:
1) 8.2MV
2) 14.58V
3) 3.62V
4) 3.31V
5) 180MV
6) 3.42V
7) 0.731V
8) 0.268V
9) 4.36V
10) 3.41V
11) 3.42V
12) 3.42V
13) 3.39V
14) 3.39V
15) 0V
16) 1.6V
17) 1.6V
18) 1.6V
19) 5.53V
20) 5.53V
21) 0V
22) 0V
23) 1.6V
24) 1.6V
25) 5.02V
26) 4.81V
27) 14.52V
28) 15.15V
 
Last edited:
Top