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Lenovo Xiaoxin 15 2019 notebook no booting mainboard burn out maintenance
The computer does not turn on, and the motherboard is burnt out. Open the back of the motherboard, find the corresponding drawing of the machine on Xin manufacturing software, and directly find the burned place. There is no short circuit in the 8-pin and 9-pin test of U10. Connect the power on cable and screen cable, and repair the fault when the machine is on.