820-00165-a liquid damaged

[MarcinRdm]

Hi
I had no backlight.
I replaced:
U7701, d7701, f770, rebuilt XW7720 and cleaned the rest.
now the backlight works but D7701 pin 1 - 6,8v pin 2 - 24v.
Q7706 pin 6 - 6,75v
BKL_EN 2.8v
BKL_PWM 1,5V

The macbook turns on from the keyboard but does not detect it after starting.

 

[MarcinRdm]

I replaced D7701 and now pin 1- 8,6 v pin 2 - 8,6 but backlight not working.
XW7720 - 8.6v
BKL_EN - 2.8v
BKL_PWM - 1,4
BKL_ISED - 0
SMC_LIT 3,4
PPHV_S0SW_LCDBKL - 8,6v

J8400
pin 3-4 - 8,6v
pin 18-19 - 3,3 v
Pram reset doesn't help

 

[2informaticos]

"the backlight works but D7701 pin 1 - 6,8v pin 2 - 24v"
What was not good for you there???

Recheck all you done when replaced the diode; put back original, in correct dirrection.