![]() ![]() Open the ZXW Dongle to check MacBook schematic diagram and bitmap to find the screen flex cable connector, and then check MacBook backlight power supply circuit.Īccording to the MacBook schematic diagram, we know that the PPHV_SOSW_LCDBKLT is the screen backlight power supply, check the source of the PPHV_SOSW_LCDBKLT. In order to repair the backlight circuit, it has to be connected to the screen, the MacBook motherboard has to recognize the screen, so the open signal will display smoothly. Remove the top half of the MacBook (display screen part), and then connect the MacBook motherboard to the screen via screen flex cable. The model for this MacBook air is A1466, the motherboard model is 820-00165-A, and it’s released in 2015.ĭisassemble the MacBook Air, remove the rear case, and then remove the MacBook motherboard. After removing the MacBook Air screen problem, we need to check the motherboard. Press the power button on MacBook, the boot bell rang smoothly, after few seconds, we found the MacBook Air screen has no backlight, it's abnormal. Solution: MacBook Air No Backlight After booting (A1466)
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