Hello,i want to repair this mainboard mod.820-02020.It is visually speaking in perfect condition,no signs of damage burn,no spilled,no corrosion,and i'm pretty confident that nobody has opened the device before.
The problem is that is not booting at all,and it's not boosting to 20v.
Can you help me to do a correct diagnose of main voltage rails (AON and others),to track down the issues?
i have tools boardview and schematics so i can do measures no problem,
i know that i can do that and learn with your help,
one important note
i attach pics of the two usb-c ports that are drawing different currents at 5v(stable and not floating up and down).
thanks
The problem is that is not booting at all,and it's not boosting to 20v.
Can you help me to do a correct diagnose of main voltage rails (AON and others),to track down the issues?
i have tools boardview and schematics so i can do measures no problem,
i know that i can do that and learn with your help,
one important note
i attach pics of the two usb-c ports that are drawing different currents at 5v(stable and not floating up and down).
thanks
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