Notebook Legion Y520-15IKBN Laptop (Lenovo) just start with battery

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  • Inforgalaxie
    Member
    • Apr 2023
    • 37
    • Portugal
    #1

    Notebook Legion Y520-15IKBN Laptop (Lenovo) just start with battery

    Hi, I have this Lenovo Legion with a strange problem. Just with AC adapter , I have 3 and 5V ALW but the notebook not start when i press start buton.

    If I conect just the battery the notebook start widhout any problem.

    i was check and i have the AC OK , AC Present, EC RSMRST.

    On page 16 i not have PM_SLP_S5#_R when i press start with AC adapter but if i just conect the battery and press de start buton i have 3v PM_SLP_S5#_R.


    If i reset the bios and conect the ac adapter the notebook start well automatic ( normal) but if i press the power button, the notebook turn off but i canot start again.

    Just with battery i not have any problem to start...


    So what you think can be this?

    [MOD EDIT] Link to schematic -> https://www.badcaps.net/forum/troubl...-nm-b391-rev-1
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