viewsonic vx2835wm

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  • testas86
    Senior Member
    • May 2010
    • 140
    #1

    viewsonic vx2835wm

    the unit turns on and the screens backlight seems to come on but no actual video its just lit up black. ive taken it apart and saw some blown caps on the video board and replaced the 1 blown cap and all surrounding caps. ive also tried each transformer by its self and every time the screen does the same thing. i tested the voltages of the transformer and one of them seems a little weird so i wanted to replace it. if anyone could help me trouble shoot more on this tv and help me find a transformer that would be great! thanks

    transformer number seems to be

    2874015000
    m b 0740a
    Tags: None
    • PCBONEZ
      Grumpy Old Fart
      • Aug 2005
      • 10661
      • USA
      #2
      Re: viewsonic vx2835wm

      Did you check the transformers soldering?
      Big parts like transformers often end up with cold-joints when they wave solder the boards.
      .
      Mann-Made Global Warming.
      - We should be more concerned about the Intellectual Climate.
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      Be who you are and say what you feel, because those who mind don't matter and those who matter don't mind.
      - Dr Seuss
      -
      You can teach a man to fish and feed him for life, but if he can't handle sushi you must also teach him to cook.
      -

        Comment

        • testas86
          Senior Member
          • May 2010
          • 140
          #3
          Re: viewsonic vx2835wm

          yes ive resoldered every transformers joint

            Comment

            • testas86
              Senior Member
              • May 2010
              • 140
              #4
              Re: viewsonic vx2835wm

              so i took it all apart again and resoldered all the transformers on the power supply as well just in case. i also disconnected the tcon board from the tv and turned it on and i got nothing at all. so i was wondering if that means it is in fact the inverter board cus shouldnt i atleast get a flash on the screen showing that the bulbs are turned on even if then tcon board isnt plugged in or working?
              please any help would be greatly appreciated.

                Comment

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