820-02016 no video

[bartech]

water damage
macbook start normaly but no video on lcd and no video by hdmi.
there is connection dp800 to jp600 pin 43
qp800
pin
3-11,92v
4-12,01
rest - 0v

ppvout_lcbblkt - 0v
ppbus_aon- 12.01v
pp5v_sw_lcd- 5,19v
pp3v3_sw_lcd-3,27v
i2c_als_1v8_sda- 1,8v
i2c_bklt_scl - 5,18v

i change up800 but no changes

 

[2informaticos]

"macbook start normaly"
Do you mean it chimes and has USB activity?

 

[bartech]

it chimes

 

[2informaticos]

Image should appear before the backlight.
Did you test with known good LCD assembly?

LPDP_INT_HPD goes high?