Announcement

Collapse
No announcement yet.

Samsung LCD TV Le32r74BDX

Collapse
X
 
  • Filter
  • Time
  • Show
Clear All
new posts

    Samsung LCD TV Le32r74BDX

    Hi all,

    I have owned my Samsung LCD TV Le32r74BDX from new and didnt have a problem prior to December last year. I went for a 1 month trip and came back to find the TV was malfunctioning. It shows a grid of multicolored pixels regardless of the input I use. I have tested it on HDMI, Freeview, DVD and even VGA. I disconnected it for about a week and upon plugging it in, it seemed to be functioning ok. then after about 1 minute, the pixels started appearing and then suddenly occupied the whole screen.

    I had taken it to storage during the time that I was away. Not sure what could have affected it but I remember reading that UK underwent a month of several nights with temperatures below -10C.

    I changed the power board capacitors to eliminate any caps ruined by the freeze but this has not made any change on the TV; it still has the grid of pixels after about 1 minute.

    I need some help in troubleshooting; am good with most electronic repair so please offer some suffestions on how to get it back to working order.

    The reason I suspect it is repairable is because it displays ok for a 1 minute before showing the grid, this shows the lcd panel seems to be functioning ok, but the signal seems to be getting distorted after 1 minute. I will attach some photos as soon as I can.

    thanks

    #2
    Re: Samsung LCD TV Le32r74BDX

    let me try attaching the images here;
    Attached Files

    Comment


      #3
      Re: Samsung LCD TV Le32r74BDX

      tried a different main board and the problem was cleared; just in case anyone needs to solve this in the future. the cold must have affected a component in the main board.

      Comment


        #4
        Re: Samsung LCD TV Le32r74BDX

        Hi bmmach.
        Just wondered where you got the new board from, I have the same problem with an LE32R74BD and it needs a new board but I'm struggling to find one.

        Thanks.

        Comment


          #5
          Re: Samsung LCD TV Le32r74BDX

          Look on the mainboard. There should be a model number printed on it somewhere. It always starts with BN41-0_____

          That's the key thing to search for.

          Example of what it normally looks like below (from a different TV)

          Attached Files

          Comment

          Working...
          X