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had some liquid damage. Some corroded caps all over the place. Replaced them all.
Lid sensors have no corrosion.
where could i measure. what could be the next step. i have no idea.
This is an interesiting Case:
I2C lines are fine
feedback is fine
sense cuircuit had broken traces (to the shunt resistor)
made those connections again
the screen is working. I tested it
on the backlight output i have 11.7V
i have found out that if i measure r7702 on pin 2 (with a multimeter)...
Cpu gets around 80 degrees, but no cpu activity.
Already flashed the EFI chip.
25khz Clock signal is present.
What could be the issue here.. is the cpu dead
820-00850. The version with t2 chip and touchbar.
the Device had some liquid damage.
The LVDS connector on the Panel looks bad. Already swapped out the Screen, so its new.
It looks like there is no corrosion the logicboard.
L8504 was burnt. Already replaced that, but still no image.
DP_INT_HTP...
the client told us that it just turned off suddenly and then never turned on again.
PLT_RESET_L is high wile its spinnng the fans, and low while the fans are not turning