jvc lt-42dg1 lcd

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  • attainteddragon
    Badcaps Veteran
    • Apr 2013
    • 764
    • australia
    #1

    jvc lt-42dg1 lcd

    hey guys, im trying to sort out this lcd with video issue.
    when cold, it will have perfect picture for a few minutes, or with signal it will fail within about 20 seconds.
    the picture fault is also over the menu as well.
    i have reseated all lvds and ribbon cables and checked tab bonds with no luck.
    i have also heated and cooled the main and t-con to try to find the fault, with no luck.
    i havn't found any voltages that are out of tolerance or unsteady.
    Attached Files
    WHY CAN'T PHILIPS USE PHILLIPS HEAD SCREWS?
    Tags: None
    • ben7
      Capaholic
      • Jan 2011
      • 4059
      • USA
      #2
      Re: jvc lt-42dg1 lcd

      Have you checked the on-board voltages too? Like, the voltages regulated by the voltage regulators on the main board.
      Muh-soggy-knee

        Comment

        • attainteddragon
          Badcaps Veteran
          • Apr 2013
          • 764
          • australia
          #3
          Re: jvc lt-42dg1 lcd

          main voltage regulators.
          u11 eh13a
          0.0
          1.794
          3.283

          u13 l7805cv
          -0.4 mv
          3.279
          5.02

          u16 eh16a
          0.0
          3.283
          5.02

          u18 eh16a
          7.83
          0.0
          4.97

          u36 az1084s
          -o.1 mv
          3.288
          5.00

          u28 eh1.1a
          1.372
          2.616
          5.02

          u39 eh16a
          -0.3 mv
          3.284
          5.02

          u18 is a different package type that sits above the aerial port, but seems way out of place from what i can tell.
          WHY CAN'T PHILIPS USE PHILLIPS HEAD SCREWS?

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