Samsung LNT4661FX/XAA distorted middle of screen

Collapse
X
 
  • Time
  • Show
Clear All
new posts
  • freakaftr8
    Badcaps Legend
    • Oct 2012
    • 3743
    • USA

    #1

    Samsung LNT4661FX/XAA distorted middle of screen

    this is an interesting one previous owner said there is something wrong with the panel stated by the repair shop well I can tell you that's not the panel as when I first turn the TV on with a black screen the menu came up perfect but as soon as I went to a snowy screen on air this popped up the menu still tries to come up in the foreground you can see the no signal pop up from here and there between the distortion so it definitely looks like a mainboard fault or possibly the power supply giving off wrong voltage. Any thoughts before I tear into it?

    http://i845.photobucket.com/albums/a...ps1bfbd9fd.jpg
    Did I leave the soldering iron on?
  • tom66
    EVs Rule
    • Apr 2011
    • 32560
    • UK

    #2
    Re: Samsung LNT4661FX/XAA distorted middle of screen

    Main board - RAM would be my bet. Some Samsungs have option for testing beforeDDR and afterDDR for narrowing fault down...

    Or if it has a motion FRC on T-con could be that (motion FRC is for 100/120Hz feature)
    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

    • freakaftr8
      Badcaps Legend
      • Oct 2012
      • 3743
      • USA

      #3
      Re: Samsung LNT4661FX/XAA distorted middle of screen

      Which mainboard ram would I be looking at? in the service menu the only option for ram check is Under checksum and that has 0000 and when I initialize it says D652. Does that mean anything?

      Here's the mainboard.
      http://i845.photobucket.com/albums/a...ps1697278d.png
      Did I leave the soldering iron on?

      Comment

      • tom66
        EVs Rule
        • Apr 2011
        • 32560
        • UK

        #4
        Re: Samsung LNT4661FX/XAA distorted middle of screen

        I wouldn't have the faintest clue, sorry.
        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

        • freakaftr8
          Badcaps Legend
          • Oct 2012
          • 3743
          • USA

          #5
          Re: Samsung LNT4661FX/XAA distorted middle of screen

          any chance the firmware is corrupt? I cannot seem to locate the firmware in Samsung's site.
          Thought I would give it a shot before I try to find a replacement or part the thing out.

          Funny, on accident I initialized the SW upgrade thru USB even though there is no USB in it. at the end of the 30 second scan the screen went wonky.
          Definitely a glitch on the mainboard. Tcon on ths unit is very basic, and it was manufactured mid 2007, wad there even a 120hz panel then?
          Did I leave the soldering iron on?

          Comment

          • tom66
            EVs Rule
            • Apr 2011
            • 32560
            • UK

            #6
            Re: Samsung LNT4661FX/XAA distorted middle of screen

            I would be surprised if corrupted firmware would cause this.I'd try heating/cooling stuff, maybe you can find the source of the fault as it sounds temperature dependent.
            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

            • freakaftr8
              Badcaps Legend
              • Oct 2012
              • 3743
              • USA

              #7
              Re: Samsung LNT4661FX/XAA distorted middle of screen

              Heating and cooling does not make.a difference on this one. Its stubborn. Actually out of the box cold it does it.
              Did I leave the soldering iron on?

              Comment

              Related Topics

              Collapse

              • Chrissygizmo
                Samsung UE55JU6800K half screen dark
                by Chrissygizmo
                Hello everyone, I’ve just been given a Samsung UE55JU6800K smart tv as it had white spots on the screen due to the led lenses falling off. After refitting them & putting the tv back together I thought it was a nice easy fix for a free bedroom tv , then I tried it before screwing the back into place. I realised that the right side of the screen was darker than the other side, I removed the screen again as I thought the backlights had failed but they are fine.
                I put the screen back in place & turned it back on . The screen seemed to be ok again but different screens on the same...
                02-10-2025, 12:33 AM
              • Chrissygizmo
                samsung galaxy ao2s very temperamental after screen replaced
                by Chrissygizmo
                Hi , I've recently replaced the screen in my Samsung galaxy ao2s, at first it wouldn't even turn on, it had the charging symbol on the screen when plugged in but the green circle wasn't going around to show it charging....
                Ive eventually managed to get it on and working but it's very temperamental...

                The battery icon always reads as 50% , when the phone goes into lock screen mode i sometimes can't get the screen back on unless I plug the charger in to get it to light up, also it keeps putting the camera app on.. u think it could be something to do with the side buttons. ...
                05-26-2024, 12:05 AM
              • Kiberge
                Samsung LH82QENELGC/EN Help needed - Static line on screen
                by Kiberge
                HI guys!

                I've got a Samsung LH82QENELGC/EN with a problem and need some advice and I hope this is the forum to use?
                I'm from Norway so I'd like to apology in advance if my description of the fault is kind of simple or the names on the components are way off. 😊

                the TV is powering up, working as normally and picture is all good, except a 1.5-inch-wide vertical line of snow/static across the screen.


                This TV is a Signage Display/Public Display version and it's been used at my work for 4-5 years showing commercials 24/7. The fault occurred when...
                04-22-2024, 11:28 AM
              • Ryan.man
                Macbook 2017 with touchbar (A1706) won't turn on after removing the screen
                by Ryan.man
                Hello everybody! Posting this in hopes somebody has some expertise that leads to a clear path of troubleshooting that saves me a lot of time!

                My macbook has the flex cable problem, the one that prevents the screen turning on. Ive been dealing with this for the last 3 years. Last year it went dead and I managed to fix it following youtube tutorials. But my fix wasnt the best, the problem returned a month later. This week, it went dead again. I again tried to fix it.

                This time the original cable broke too close to the screen, it can't be fixed without tearing the screen...
                02-04-2025, 12:23 PM
              • arbitarytwist
                Samsung UN50NU7400 - No Picture (but boot screen and screensaver)
                by arbitarytwist
                Have a Samsung UN50NU7400 which shows a boot screen and a screen saver if left on long enough but no picture ?

                Would a moving screen saver confirm that the panel is ok or it could still be a panel issue ?
                03-01-2025, 01:16 PM
              • Loading...
              • No more items.
              Working...