LA-N631P schematic and boardview request

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  • reformatt
    Badcaps Legend
    • Feb 2020
    • 1400
    • Australia
    #1

    LA-N631P schematic and boardview request

    This is from a 2024 Acer Aspire 15 N23C3. Unit has liquid damage but CPU seems to have survived. Can't find anything on this board, but have noted the following until a schematic becomes available.

    PUA01 RT6543AGQW (ML=) PCH +1V
    PUZ101 RT3624BE CPU Vcore

    PU301 RT6338BGQUF (RW=) +3.3V
    PU501 RT6310CGQUF (S2=) +5.1V
    PUM1 TPS51488 RAM +1.2V
    PUB1 Intersil 9238 B+

    UVH2 EM5109-A +3V LDO

    UK1 KB9542QG EC

    Main issues for this board are a hole in the PCH power IC PUA01. The hole is right on the L part of the chip, but seems to be the correct one. PLA01 coil measures 167 ohms at room temp so isn't shorted at least. Other issue is 200 ohms on the 5V rail which seems rather low.

    Not clear on what US12 is though. Chip is marked as 5440V 3U113 ERA+


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