820-00239 NO VIDEO INTERNAL OR EXTERNAL

[Mac Repairs]

Hi,
This Board tuens on and charging properly But no video on internal or external.
But keyboard caps lock light in on and when i boot from usb i can see usb is reading..
SMC_LID is 3.3v.

I tried with different dispay still no display.
Aany help greatly appriciate.

 

[2informaticos]

Any history available, liquid signs close to J8500?

Do you get 3V3/5V_S0SW_LCD in the first few seconds at least?
If yes, check DP_INT_HPD at same time (for pulse at least).