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  • Default No image on Macbook A1278 which is 820-3115
    The laptop turns On and give the chime sound, meaning the CPU is working 100%, but i have no image on the screen.

    U9000 have 3.3v for data line on the input side but 0v on the output, i knew that there was nothing wrong with U9000 since it was not being told to turn on, anyway i reomved the chip with another same one but still no 3.3v

    L9004 has 0v
    L9008 has 3.3v
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