CQ42 Power Problem , Pls Help

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  • nazrul145
    Badcaps Veteran
    • Jan 2014
    • 333
    • BD

    #1

    CQ42 Power Problem , Pls Help

    Hello brother, I need help for cq42 power problem. its 5v 3v not present, Because there is no 19v in PR159. I have checked PQ47 Pin 1 gate is 6v so that pin 3 has only 6v. Now i cant find why pq47 pin 1 gate is low. Please help me How can troublshoot it.
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  • polytek
    Badcaps Veteran
    • Dec 2013
    • 496
    • TUNISIA

    #2
    Re: CQ42 Power Problem , Pls Help

    Hi,
    have you check if there 19V at PD14 cathode pin if no 19V:
    check the cap: pc67, pc142, pc151, and PD14 if shorted remove all from the mobo

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