820-00281 NO DISPLAY ON INTERNAL SCREEN

huzeafa

Member
Good day, guys.

I have a 15 inches 2016/17 Touch Bar with no display on internal. When I measured in DIODE MODE {{EDP_AUXCH_C_P}} signal was very low compared to a working board which led me to replace U9850 from a donor board, then checked again in Diode mode, and this time the value I got was that of a working board, but I still do not have an internal screen display. Is there something else I need to do in a situation like this aside from replacing U9850? especially given that the signal was low at first, which points to an issue in the region. Please help.
 

2informaticos

Administrator
Staff member
So internal LCD is detected; no image for sure?

What is the backlight output voltage?
Check with LCD connected, of course.
 
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