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MSI GT62VR-6RD MS-16L21 - PL10 an PL11 doesn't have voltages.

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    MSI GT62VR-6RD MS-16L21 - PL10 an PL11 doesn't have voltages.

    hello!

    MSI GT62VR-6RD MS-16L21
    PL10 an PL11 doesn't have voltages. Resitance on these coils 3.5Ohm. It is good rsistance for SR2FQ.
    At U11 VCC and VIN ok
    VR_ENABLE=3V ok
    VR_READY=3V ok
    ALERT#=0V not ok
    SDA only static 1V, no data
    SCL only static 1V, no clock
    Pin19 to Pin20 sense loop ok
    pin32 to pin33 sense loop ok

    And i set U11 in test mode by replacing PR43 to 20kOhm (U11 Pin 40). In this mode U11 generates 1.05V. So in this mode 1.05V i on PL10 and PL11 available. It means +VCC_CORE voltage supply is ok.

    1. is the CPU defective?
    2. what options are available to exclude defective CPU or validate defective CPU without replacing the CPU?
    3. is PMON pin1 necessary for work of the U11? It is low and comes from charger. In Datasheet stays "Buffered total system power. The output current is proportional to the total power from the adapter and battery"

    schematics: https://drive.google.com/file/d/1oA8...ew?usp=sharing

    thank you!
    Last edited by user54321; 10-27-2021, 09:06 AM.
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