Samsung LE40M87BDX. Green lines across the middle of the screen. Like the Matrix

Collapse
X
 
  • Time
  • Show
Clear All
new posts
  • Securityman
    Senior Member
    • Jan 2012
    • 50
    • United Kingdom

    #1

    Samsung LE40M87BDX. Green lines across the middle of the screen. Like the Matrix

    Got a LE40M87BDX Sammy with this green lines across the middle of the screen.
    They do come and go.
    Main board or T Con?
    Can get some better pics if needed.
    Any help would be great
    Cheers
    Attached Files
  • tom66
    EVs Rule
    • Apr 2011
    • 32560
    • UK

    #2
    Re: Samsung LE40M87BDX. Green lines across the middle of the screen. Like the Matrix

    Does it affect the menu?

    Are lines fixed?

    On all inputs?
    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

    • Securityman
      Senior Member
      • Jan 2012
      • 50
      • United Kingdom

      #3
      Re: Samsung LE40M87BDX. Green lines across the middle of the screen. Like the Matrix

      Originally posted by tom66
      Does it affect the menu?

      Are lines fixed?

      On all inputs?

      Yes

      No

      Yes, tried composite, but moved and different.
      Attached Files

      Comment

      • tom66
        EVs Rule
        • Apr 2011
        • 32560
        • UK

        #4
        Re: Samsung LE40M87BDX. Green lines across the middle of the screen. Like the Matrix

        Affects menu completely (scrambled) - I'd say main board but first try this:

        On remote control:
        POWER OFF into standby
        INFO
        MENU
        MUTE
        POWER ON

        Set will boot into service menu, select factory reset and then power TV on (it should power off after reset but if it doesn't just turn it off.)
        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

        Related Topics

        Collapse

        • howardc64
          TCL 55S425 few horizontal lines, potential failure on both side of panel/buffer board
          by howardc64
          All left and right refers to looking from rear of TV (or looking from front with TV upside down)
          • TV came with vertical bars and no image. Found faulty TVS on left buffer board. Also replaced T-Con (may have damaged the original while hot air removing components, board has slight warp) and have full image but few horizontal lines on the screen. Some of the lines appears to be 2 pixel tall while others are 1 pixel tall.
          • Disconnecting left and right buffer board potentially reveals problems on both sides with different signals (unless this T-Con require jumper like Samsung FB_TRDY1&3) Fault
          ...
          07-24-2025, 05:17 PM
        • Stanley1843
          Screen Display Vertical Multicolor Lines
          by Stanley1843
          Hello, I have a screen in where sometimes when I open it pop-up vertical multicolor lines (I would say the most of them are green). If I tun off and turn on the screen the lines dissapear or if I leave open the screen after approximately five minutes the lines gone. I measured the below voltages on the main PCB and on the T-CON board and the voltages are the same when it doesn’t display the vertical lines and when it displays the vertical lines. Also, I cleaned all the connectors very good with IPA. I moved back and forth the connectors and the COF tabs but the vertical lines didn't displayed...
          06-29-2024, 11:54 AM
        • Rubenlily
          Samsung QE50Q67TAU - horizontal lines
          by Rubenlily
          Hello,

          First of all I'm new here. While looking I found this amazing forum and I'm very happy I did. Now for my problem:

          I picked up a Samsung UHD QLED QE50Q67TAU from 2021 for $50 knowing it was defective. The seller said it had black lines and that it could get stuck in boot randomly.

          I've tried a new power cable, hard reset, opening up and jiggling all cables, pressing everywhere to see if I get a reaction but I've gotten nothing. I've tried the tape method but I've only managed to get the lines worse.

          I'm no expert but I've done the tape...
          08-16-2023, 01:12 PM
        • visionbluedemon
          Help. Sony kd-65x85dj vertical lines
          by visionbluedemon
          First. it has no picture at all. i solved it by covering the ckv lines using tape to to block the connections

          Second. now has picture but with vertical lines that follow the image. tcon board ic overheating

          tried blocking LC lines too, but same results




          is it lcd panel issue or tcon board issue?...
          07-25-2025, 04:56 AM
        • ggil44
          Sony XBR-65X750D Horizontal lines bottom of screen
          by ggil44
          Hi, I have a Sony XBR-65X750D that has horizontal lines at the bottom 6 inches of the screen. These lines appear to be every other line because the picture is still quite visible behind those lines. The lines appear all the time with a few other lines above and below the 6 inch level blinking on and off at about 2 second intervals. I'm not sure if this is a panel issue or power supply/main board problem. I did replace the T-Con board without any change in the problem. Any suggestions you might have would be greatly appreciated. Thanks,
          05-30-2023, 07:51 PM
        • Loading...
        • No more items.
        Working...