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    820-3476 No backlight, missing BKLT_EN_R

    Yeah I explained it in a confusing way. I tested the computer for no backlight with everything connected, and confirmed the issue was no backlight. Then I took the board out of the macbook and started testing, not realizing the display needed to be connected (cuz I'm a dummy). Then I connected...
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    820-3476 No backlight, missing BKLT_EN_R

    After plugging in the display, I actually AM getting my 3.42V on EDP_BKLT_EN. U7700 has its enable on pin 17, and is getting its required 5V on both pins 5 and 18. However, I am still getting 12V to Q7700 on the LCDBKLT_EN_L. Replace U7700?
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    820-3476 No backlight, missing BKLT_EN_R

    Thanks! Diode mode showed an Open Line for PPVOUT_S0_LCDBKLT when the connector was connected and disconnected (tested with ONLY the connector inserted, no other cables or power was connected to the board when I tested). I should have mentioned I tested the same thing earlier with resistance...
  4. N

    820-3476 No backlight, missing BKLT_EN_R

    Hello! Somewhat new to this and just trying to get some direction. MacBook turns on, can use with external monitor, confirmed no backlight/can see an image when I use a flashlight. I have 0V on PPVOUT_S0_LCDBKLT Missing the enable signal for U7700. I checked where it gets the signal from and...
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