Samsung PS51D8000FS not video, not power on

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  • exvion
    New Member
    • Apr 2014
    • 2
    • Russia
    #1

    Samsung PS51D8000FS not video, not power on

    Samsung
    Model: PS51D8000FS
    Type: PS51D8000
    Code: PS51D8000FSXRU
    Version: N101

    x main
    MODEL NO: 50 DS XM
    PCB NO: LJ41-09426A
    PBA NO: LJ92-01765A
    REV NO: R1.2 (10/12/17)

    main board
    BN41-01623

    SMPS:
    PB5FA (BN44-00446A) Model No. PSPF371501A)

    logic board
    MODEL NO: 50DF/DS LOGIC MAIN
    PCB NO: LJ41-09390A
    REV NO: R1.4 (10/11/26)

    y-main
    MODEL NO: 50 DS YM
    REV NO: R1.3 (10/12/17)
    PCB NO: LJ41-09427A
    PBA NO: LJ92-01766A

    y-buffer
    MODEL NO: 50DF/DS LOGIC MAIN
    PCB NO: LJ41-09429A
    REV NO: R1.2 (10/12/06)

    Power on Sequence
    PS-ON -3.34v -0v
    STBY - 5.27v -5.27v
    VS-ON -0v -0v
    Vs - 10.5v
    Va - 0v
    Logic led every 5 seconds - DRV_reset

    I disconnected power cable from smps to y main, data cable from logic to y main and data cable from logic to x main, vs-208v, va-58v.
    What is my next step?
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