Sony KDL-40V3000 picture getting brighter!

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  • Lampmanpaul
    Lampmanpaul
    • Nov 2015
    • 3
    • Northern Ireland
    #1

    Sony KDL-40V3000 picture getting brighter!

    Hi Everyone,

    I'm the new guy so a big hello to all

    I've a Sony Bravia KDL-40V3000 which powers up good with good picture and gradually turns slightly Bright/White over 30 min with slightly distorted picture.

    I have checked the T-CON board ribbon cables, removed them from sockets, cleaned and reseated. No change.

    I've also collected the following GAMMA voltages on the test points.

    VGMA 1. 15.32
    VGMA 2. 15.07
    VGMA 3. 14.93
    VGMA 4. 12.54
    VGMA 5. 11.75
    VGMA 6. 10.82
    VGMA 7. 10.17
    VGMA 8. 9.86
    VGMA 9. 8.23
    VGMA 10. 8.05
    VGMA 11. 7.84
    VGMA 12. 7.04
    VGMA 13. 6.84
    VGMA 14. 6.66
    VGMA 15. 5.08
    VGMA 16. 4.87
    VGMA 17. 4.42
    VGMA 18. 3.66
    VGMA 19. 3.01
    VGMA 20. 0.65
    VGMA 21. 0.51
    VGMA 22. 0.31

    These voltages are gradually dropping which makes me believe that the T-CON board is ok.

    Anybody got any ideas? I was thinks of replacing AS15-F but my voltage results are putting me off.

    Thanks in advance

    Paul
    Tags: None
    • ReeceyBurger123
      Never Give Up !
      • May 2014
      • 7325
      • Britain
      #2
      Re: Sony KDL-40V3000 picture getting brighter!

      Thats an As15 fault, replace that chip and all should be good They sometimes fail intermittently.
      Please Do Not PM My Page Asking For Help Badcaps Is The Place For Advise, Page Linked For Business Reasons Only. Anyone Doing So Will Be Banned Instantly !

      https://www.facebook.com/Telford-Tel...7894576335359/

        Comment

        • Lampmanpaul
          Lampmanpaul
          • Nov 2015
          • 3
          • Northern Ireland
          #3
          Re: Sony KDL-40V3000 picture getting brighter!

          Ok Will do..


          Thank you for replying ReeceyBurger123



          Paul

            Comment

            • ReeceyBurger123
              Never Give Up !
              • May 2014
              • 7325
              • Britain
              #4
              Re: Sony KDL-40V3000 picture getting brighter!

              No worries let us know how it goes
              Please Do Not PM My Page Asking For Help Badcaps Is The Place For Advise, Page Linked For Business Reasons Only. Anyone Doing So Will Be Banned Instantly !

              https://www.facebook.com/Telford-Tel...7894576335359/

                Comment

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