Thank you so much my fellow badcaps legend! Does this mean I have to rob a filter part from another device? By the way, I can adjust the backlight brightness with the touch bar and see a visible result. I also was looking at the schematic and wondered why the camera sensor would have such an affect on the screen. thanks again for the reply

also the liquid damage idea is a good one and I will look right away!

73

Hey Friends,
I have an MBP 2019 16" (A2141), i9/64Gb/1Tb, and recently the LCD went out. Not flexgate or Dustgate. Backlight is on and works, the board still works and posts to an external monitor. Not a software issue, absolutely nothing shows up onscreen except for backlight glow. opened the bottom cover and resistor L8504, a 120 ohm resistor (I believe) is fried, and fell off the mobo with a gentle touch. after it fell off, same problem with zero change observed which is why I think it is the issue. That resistor, acc to the 820-01700 motherboard schematic, goes straight to pin 46...

Hello all,
I am new to this site but am pleasantly surprised by the quality of the community here. everyone seems very helpful and knowledgable.

I am a HAM radio guy, and something of an outdoorsman, but I repair electronics to fund my hobbies.

I have a 2019 MBP 16" and have an issue where the backlight comes on but no LCD display. Upon opening the bottom lid, resistor L8504, right near the "EDP" sreen connectors seemingly fried. It was blackened and fell off when I touched it gently. I am an experienced solderer but I need help and instruction...