Grunding plasma( 42v7)

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  • willyam1
    Senior Member
    • Feb 2012
    • 112
    • israel
    #1

    Grunding plasma( 42v7)

    Hi to all
    this tv came with no screen problem
    found in YSUS 6871QYH45D 4A FUSE IS OPEN and the big ic IPM YPDD-JO14C IS short
    I order 2 ipm from UTSOURCE IN HONKONG
    replace the ipm and the fuse operet it its the same problem
    voltage measured VS=184V VA 65V VSCAN=114V VY=-85 15V AND 5V
    THER 3 OUTPUY FROM YSUS TU YDRIVE upper and lower -30v 108v -30v also ican see in the scope that ther is a pulses in the output but not sure if they are corect also ther pulses in the flat cabel from logic board to ysus
    in the ZSUS OUTPUT ALSO PULSES CAN SEEN ON THE SCOPE AND 80V DC IS MESUERED
    AFTER A FEW MINUTES IM TOUCHING WITH MY HAND AT THE COOLING IPM IN THE ZSUS AND ITS STARTED TO BE HOT BUT IN THE YSUS IS COOL NOT WARMING
    COULD BE THAT THE IPM THAT I BOUGHT IS FAKE OR THER IS ANOTHER PROBLEM?
    WILLYAM
    Tags: None
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