macbook pro 820-3115

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  • mortito
    New Member
    • Jul 2020
    • 7
    • España
    #1

    macbook pro 820-3115

    good morning
    I need help I have this motherboard the charger light turns green it turns off and turns on again in a few seconds
    and so constantly the motherboard does not boot

    I did the following measurements in u7000
    in DCIN I have oscillating values 18.1 18.3V
    ACOK 3.2V
    ACIN 4.4v
    CSIN OSCILLATION BETWEEN 18.1 AND 20v
    CSIP OSCILLATION BETWEEN 18.1 AND 20v
    BOOT OSCILLATION BETWEEN 14.1 AND 20v
    SGATE OSCILLATION BETWEEN 17 AND 20V
    AGATE 004.2mV
    VDD 5V
    VDP 5V
    R7020 OSCILLATION BETWEEN 18.1 AND 20 V
    Q7085 SOURCE 18.6v DRAIN 18.6v

    thanks in advance greetings
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