samsung 40" le40b554m2wxxu

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  • gary19610
    Senior Member
    • Dec 2012
    • 74
    • uk
    #1

    samsung 40" le40b554m2wxxu

    I have a Samsung 40" when you first turn the tv on its like the back light flickers for about a 1min could be ok then for hours then flickers a lot more could this be the inverter transformer.thanks here is a picture of psu and inverter all in one
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    • tom66
      EVs Rule
      • Apr 2011
      • 32560
      • UK
      #2
      Re: samsung 40" le40b554m2wxxu

      Check voltage across the 450V caps. It's probably not the transformer(s) as I'd expect only one block of bulbs to go bad, unless they are tied in some kind of series configuration.

      Also BN44-######[A-Z] number from PSU would help.
      Please do not PM me with questions! Questions via PM will not be answered. Post on the forums instead!
      For service manual, schematic, boardview (board view), datasheet, cad - use our search.

        Comment

        • gary19610
          Senior Member
          • Dec 2012
          • 74
          • uk
          #3
          Re: samsung 40" le40b554m2wxxu

          psu is BN44-00264C REV 1.2

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