F&U FDH32882W (Power Board 17pw25-3) Led Blinking White

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  • eniac22
    Senior Member
    • Jun 2012
    • 124
    • Greece
    #1

    F&U FDH32882W (Power Board 17pw25-3) Led Blinking White

    Hello, TV F&U FDH32882W (Power Board 17pw25-3) dont turn on, i found that capacitor C849 (470uf/16V) has problem and replaced, now the TV is working ok but when i plug it on the power source the led is blinking white for 5-7 sec and then is stable, the same doing when i turn off the TV. Also when i power up the TV the Led is blinking white and then stay off (the led).
    I wοnder if is normal this ?

    Voltage when TV is ON

    BL_ON/OFF = 3.35V
    B_DIM = 1.78V
    +12V = 11,70
    +5VSTBY_2 = 4.93V
    +3V3STBY_1 = 3.37V
    +3V3 =3.35V
    +24VAUD = 24V
    +12V = 11.7V
    PIN 13 = 0.44V
    +5V = 5.26V
    ST_BY2 = 3.37V


    Voltage when Tv is standby

    STBY_ON/OFF = 1.57V
    BL_ON/OFF = 0.05V
    B_DIM = 0V
    +12V = 0,06
    +5VSTBY_2 = 4.5V
    +3V3STBY_1 = 3.37V
    +3V3 = 0V
    +24VAUD = 0V
    +12V = 0.06V
    PIN 13 = 0.38 ή 0.45V (in second measurement 0.45V)
    +5V = 0V
    ST_BY2 = 3.37V

    Thanks
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