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Affinity SLE2039 - Won't Power On

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    #1

    Affinity SLE2039 - Won't Power On

    Picked up this 39" LED TV that won't power on. There IS power all over the hot side of the power board. Nothing on the cold side anywhere. There was a burn mark on the back side of the power board right in the middle of the hot side. Took a pic of that and then cleaned up the board and took another.

    Edit: Just noticed that the backside pics of the power board are a little dark on the left side. I can retake them if needed.
    Attached Files
    Last edited by toddw65; 02-24-2017, 05:25 PM. Reason: Additional info
    Tags: None
    #2
    Re: Affinity SLE2039 - Won't Power On

    Did it happen when you shorted J21 checking main cap or was it already like that? Glare but looks like resistors?
    What is voltage across main cap.
    Last edited by dskall; 02-24-2017, 05:46 PM.
    I assume no responsibility for any stupid suggestions I might post.

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      #3
      Re: Affinity SLE2039 - Won't Power On

      R67A & R68 look like two burnt out smd resistors.
      And whatever this component is, appears to have lost a led in the cleaning up process as well as not looking that good.
      Attached Files
      Last edited by dick_barton; 02-24-2017, 05:59 PM.
      Willing to help but I'm no expert.

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        #4
        Re: Affinity SLE2039 - Won't Power On

        I think someone must have been in it before. I just now noticed what looks like a desoldered & missing component right at the top left of the transformer in the pic that dick_barton just posted. SJ doesn't have a board but I do see one or two on Ebay. Considering the damage on this one, I probably should just try one of those.

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          #5
          Re: Affinity SLE2039 - Won't Power On

          Voltage across each of those long black caps is 358v

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            #6
            Re: Affinity SLE2039 - Won't Power On

            Looks like those traces going to it got hot
            I assume no responsibility for any stupid suggestions I might post.

            Comment

              #7
              Re: Affinity SLE2039 - Won't Power On

              Originally posted by dick_barton View Post
              R67A & R68 look like two burnt out smd resistors.
              And whatever this component is, appears to have lost a led in the cleaning up process as well as not looking that good.
              Probably should read "lost a leg"
              I would check those series resistors too. I wouldn't be surprised if they changed value (top right of the board)

              Originally posted by toddw65 View Post
              I think someone must have been in it before. I just now noticed what looks like a desoldered & missing component right at the top left of the transformer in the pic that dick_barton just posted. SJ doesn't have a board but I do see one or two on Ebay. Considering the damage on this one, I probably should just try one of those.
              I see that "cut off" leg of the transformer, but if you look on the other side of the board, there isn't any hole there to put that cut off leg of the transformer in.
              Last edited by CapLeaker; 02-24-2017, 08:22 PM.

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                #8
                Re: Affinity SLE2039 - Won't Power On

                +1
                probably should read "lost a leg"
                Willing to help but I'm no expert.

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