Macbook pro 13" duo core 2009, power on no screen

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  • NConstantinou
    Badcaps Veteran
    • May 2017
    • 326
    • Cyprus
    #1

    Macbook pro 13" duo core 2009, power on no screen

    Dear all

    i have the A1278 820-2530 board which has no LVDS IG PANEL POWER.
    ACCORDING TO SCHEMATICS THE IC U9000 PIN1 IS (ON) HAS 0V.
    THE PIN 1 OF IC IS FET FROM A R9014 WHICH HAS 0V.RESISTOR IS CONNECTED TO GRAPHICS IC..
    CHECKED POWER SEQUENCE AND ALL VOLTAGES APPEAR

    THE PROBLEM IS MOTHERBOARD TURNS ON BUT NO SCREEN.

    THANKS
    Tags: None
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