Jvc em42ftr doesn't turn on.

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  • crdz66
    Badcaps Veteran
    • Nov 2012
    • 242
    • USA
    #1

    Jvc em42ftr doesn't turn on.

    Hello fellas.

    I have a led jvc tv model em42ftr that doesn't turn on
    i get this tv from a customer that said after thunder day(heavy rain) in her house the tv don't want turn on.

    The first thing i did it was to check the fuse and i find a short (no continuity).
    I replace the fuse and as soon i plug the power cord the fuse blow again.
    I decide to replace the power supply board and still can make turn on the tv.
    I check the voltage going to the main board.

    1. 19v - 19v
    2. 19v - 19v
    3. 19v - 19v
    4. Gnd
    5. Gnd
    6. Gnd
    7. Ps_on - 0v
    8. Bl_on - 0v
    9. Dim1 - .06v
    10. Dim2 - .06v

    there is a 6 pins connector on main board.

    1. -
    2. -
    3. 3.2v
    4. Gnd
    5. 5.1v
    6. 1.6v

    power on button on remote or tv doesn't make turn on.

    Any idea can be appreciate.
    Thanks.
    Tags: None
    • budm
      Badcaps Legend
      • Feb 2010
      • 40746
      • USA
      #2
      Re: Jvc em42ftr doesn't turn on.

      The main board is not sending the PS-ON signal to turn on the rest of the power supply, same for the BL-ON, and the dimming signals, all dead.
      Never stop learning
      Basic LCD TV and Monitor troubleshooting guides.
      http://www.badcaps.net/forum/showthr...956#post305956

      Voltage Regulator (LDO) testing:
      http://www.badcaps.net/forum/showthr...999#post300999

      Inverter testing using old CFL:
      http://www.badcaps.net/forum/showthr...er+testing+cfl

      Tear down pictures : Hit the ">" Show Albums and stories" on the left side
      http://s807.photobucket.com/user/budm/library/

      TV Factory reset codes listing:
      http://www.badcaps.net/forum/showthread.php?t=24809

        Comment

        • crdz66
          Badcaps Veteran
          • Nov 2012
          • 242
          • USA
          #3
          Re: Jvc em42ftr doesn't turn on.

          Even I not get Red light indicator at the front

            Comment

            • crdz66
              Badcaps Veteran
              • Nov 2012
              • 242
              • USA
              #4
              Re: Jvc em42ftr doesn't turn on.

              After replace the main board this tv is working good.
              Now I get 3.2v on p_on connector.

              Thanks Fellas

                Comment

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