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Samsung LE37B650T2W, white picture

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    Samsung LE37B650T2W, white picture

    Hello,
    I picked up this TV with a problem showing white image.

    When I unplug the right ribbon from the T-con to the panel board the right side is white with a dark shade at the edge and the left side shows perfect image.

    When I unplug the left ribbon from the T-con to the panel board the left side is dark and the right side shows image but white. After a while the left side turns grey with vertical and horizontal lines. I found online that by swapping the AS15G it fixes images problems but not in my case.
    Attached Files

    #2
    Re: Samsung LE37B650T2W, white picture

    could be tcon or panel problem, maybe try the tape cut-off method.

    Comment


      #3
      Re: Samsung LE37B650T2W, white picture

      That's going to be the gamma IC on the t-con, I'd guess an AS15-F.
      It's the IC top right in photo #2.

      Comment


        #4
        Re: Samsung LE37B650T2W, white picture

        So are you saying you changed out AS15G and have same exact problem?

        Comment


          #5
          Re: Samsung LE37B650T2W, white picture

          Most likely a panel problem. Also lots of test points on t-con to check.
          I assume no responsibility for any stupid suggestions I might post.

          Comment


            #6
            Re: Samsung LE37B650T2W, white picture

            I've done AS15 or tcon swaps with whitewashed video on these old LCDs before with no change so assumed the problem was in the panel.

            Comment


              #7
              Re: Samsung LE37B650T2W, white picture

              Originally posted by nomoresonys View Post
              So are you saying you changed out AS15G and have same exact problem?
              Yes changed the IC but nothing changed.

              I kept the boards and threw away the rest TV after seeing your posts. So thank you all but TV is gone

              Comment


                #8
                Re: Samsung LE37B650T2W, white picture

                ooo, that was an early toss, many times it's just one of those little capacitors on the panel driver board that needs changed out.

                Comment


                  #9
                  Re: Samsung LE37B650T2W, white picture

                  You changed it more than once ? it's not uncommon to get a faulty AS15.

                  Comment


                    #10
                    Re: Samsung LE37B650T2W, white picture

                    Originally posted by diif View Post
                    You changed it more than once ? it's not uncommon to get a faulty AS15.
                    No only once I changed it.. I tried a couple of times fixing panel boards but I never managed to bring to life one and always remain with the doubt if the panel itself has a damage or the board

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