[HELP] 2 Imac 820-2641 TOTALLY DEAD: NO LED/1 LED

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  • phantomEVO
    Badcaps Veteran
    • Mar 2013
    • 487
    • USA
    #1

    [HELP] 2 Imac 820-2641 TOTALLY DEAD: NO LED/1 LED

    hi to all! please help with 2 imac 21,5 dead...

    i already changed u7700 in both without luck

    u7700 pin 17, 18, 5, 4, 24, 12

    have those voltages in both imac..

    12v, 5v, 5v, 5v, 0,3v, 3,9v

    i have 3V3_S5 (L7710) in one imac (one led) but no 5v on L7750

    NO SHORT ON L7750

    i have not 3V3_S5 (L7710) in the other (no led)

    PLEASE HELP I'M GOING CRAZY!!
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