Vivax Imago lcd tv 2230 no backlight

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  • crozoki
    Member
    • Feb 2013
    • 44
    • Croatia
    #1

    Vivax Imago lcd tv 2230 no backlight

    Hi!
    I got problem with my lcd tv.
    There is no backlight but picture is there when flashing with lamp.
    There was 4 bulged capacitor (marked with red dot on picture). When replace all 4 capacitor still no backlight.
    I try to put spare cfcl lamp but nothing happend.

    This is markings of board: SHP1904A-102 REV:1.0
    Attached Files
    Tags: None
    • dskall
      Badcaps Legend
      • Oct 2016
      • 2905
      • usa
      #2
      Re: Vivax Imago lcd tv 2230 no backlight

      Will need to post some voltages to see what's missing
      I assume no responsibility for any stupid suggestions I might post.

        Comment

        • crozoki
          Member
          • Feb 2013
          • 44
          • Croatia
          #3
          Re: Vivax Imago lcd tv 2230 no backlight

          i got 12v on pins. but no 5V
          buzing sound came frome transformator

            Comment

            • crozoki
              Member
              • Feb 2013
              • 44
              • Croatia
              #4
              Re: Vivax Imago lcd tv 2230 no backlight

              i find blown smd fuse. There is mark on them "T". i don`t know values for it?
              Attached Files

                Comment

                • vinceroger69
                  Badcaps Legend
                  • Mar 2012
                  • 6714
                  • uk
                  #5
                  Re: Vivax Imago lcd tv 2230 no backlight

                  page 5 may help
                  https://cdn.badcaps-static.com/pdfs/...acfc979420.pdf

                  SMD SMT 1206 Fast Acting Fuse 5A 32V
                  Last edited by vinceroger69; 01-29-2017, 11:27 AM.

                    Comment

                    • dick_barton
                      Badcaps Legend
                      • Aug 2015
                      • 6642
                      • Wales
                      #6
                      Re: Vivax Imago lcd tv 2230 no backlight

                      Use your ohm meter and check there is no short or low resistance at either end of the fuse to ground. It blew for a reason and the fault may still be there.
                      Willing to help but I'm no expert.

                        Comment

                        • Andrew F. Ali
                          Badcaps Legend
                          • Jan 2014
                          • 2450
                          • Trinidad & Tobago
                          #7
                          Re: Vivax Imago lcd tv 2230 no backlight

                          Originally posted by dick_barton
                          use your ohm meter and check there is no short or low resistance at either end of the fuse to ground. It blew for a reason and the fault may still be there.
                          +1

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