Sony KDL-48W657D (main board protect, green light steady at the same time red light s

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  • FMstatic
    New Member
    • Jun 2021
    • 5
    • Philippines
    #1

    Sony KDL-48W657D (main board protect, green light steady at the same time red light s

    Diagnose (panel problem)
    - main board replaced- still no good
    - panel board check all supply present and correct voltage
    - hang flex ribbon main board to panel (error 5blink) but when connected again nonstop red blink no pose and green light steady
    -SDA and SCL supply 3.3v panel board
    -BL is good simulated
    Guys help me any suggestion
    Main board protect 12v shut off when connected to panel board
    Tags: None
    • FMstatic
      New Member
      • Jun 2021
      • 5
      • Philippines
      #2
      Re: Sony KDL-48W657D (main board protect, green light steady at the same time red lig

      Main board replaced due to mcu BGA damage

        Comment

        • FMstatic
          New Member
          • Jun 2021
          • 5
          • Philippines
          #3
          Re: Sony KDL-48W657D (main board protect, green light steady at the same time red lig

          Where do i get the panel board diagram?
          How to bypass main board protect to panel to see the condition of panel appearance

            Comment

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