hp EliteBook 8470p power problem

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  • menshawy
    Badcaps Veteran
    • Aug 2013
    • 399
    • egypt
    #1

    hp EliteBook 8470p power problem

    hi friends
    i have hp EliteBook 8470p with power problem
    mb 6050a2470001-mb-a03
    at first when i connect ac adapter the machine start automatically with out press power button and display normally without sound in windows
    but after i removed rtc battery when i connect ac adapter the machine start automatically then turn off after abut 20 second without display
    power sw151 ON_OFF# 0.5v
    r101 100k ok
    pin1 3.3v ok
    pin2 0.5v
    u300
    PWRBTN_1126# pin73 0.5v
    pin4 0v
    help please
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