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PS4 adp-300cr

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    PS4 adp-300cr

    Hi everyone,

    i have problem with PSU after it fail, i found shorted q3 ,q4 and browned R5
    after replace it and powered i get 5v stby
    but if i try to power up 12v it blow immediately q3 ,q4 and R5

    pls help me to fix it
    kind regrds

    #2
    Re: PS4 adp-300cr

    I don't have the schematic, but if Q3 & Q4 are mosfets, check the resistors and diode in the gate circuit, also if the mosfets were shorted, it is very likely the drain ic has been damaged.

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