Samsung PN51D450A2DXZA Version N411 has audio and screen went black

Collapse
X
 
  • Time
  • Show
Clear All
new posts
  • 19dan86
    New Member
    • Aug 2016
    • 4
    • USA

    #1

    Samsung PN51D450A2DXZA Version N411 has audio and screen went black

    Hello, I am looking for some more guidance on this issue. I will list what is going on and what has been attempted.
    1. Screen went black while viewing, audio stayed operational. Tried with the remote to go to menu or input modes and nothing will appear on screen.
    2. Visually checked all pc boards for swollen caps or burnt components, etc. and the only thing I saw was a small "brown mark" between two components on the power supply board, I will try to attach a photo. The white out area of the photo is merely a vendors name.
    3. I performed this test for the main board: https://www.badcaps.net/forum/showpos...61&postcount=2
    when I did this I also had a black screen.
    4. When I turn the tv on the red led on the front of the console acts as it always did and I get the "turning on" chime, and the turning off chime when it is powered down.
    5. On the logic board, when the tv is on the green led flashes for approximately 3.5 seconds and then will be off for approximately 1.5 seconds
    I had trouble figuring out how to release the ribbon cables and ended up damaging the connector for I on the main board so I know for sure I need that board (lesson learned!)...while I wait for it does anyone have any troubleshooting steps to try please? Thanks so much in advance.
    Attached Files
  • mmartell
    Badcaps Legend
    • Oct 2013
    • 3189
    • Canada

    #2
    Re: Samsung PN51D450A2DXZA Version N411 has audio and screen went black

    Check for open fuses, especially on the ysus and xsus.

    Did this thing make any noise before the picture went out ?

    Comment

    • johns1mj
      Badcaps Veteran
      • May 2015
      • 242
      • United States

      #3
      Re: Samsung PN51D450A2DXZA Version N411 has audio and screen went black

      Have you checked voltages yet?

      Comment

      • 19dan86
        New Member
        • Aug 2016
        • 4
        • USA

        #4
        Re: Samsung PN51D450A2DXZA Version N411 has audio and screen went black

        I appreciate the replies but ended up fixing the problem with a 60" LED.......I still may tinker with it to see if I can get it going...it made no sound when it went it the screen just went dark...any reference you can give me on where to check voltages and what I should be seeing? I do have an electrical background, thanks!
        Last edited by 19dan86; 08-31-2016, 10:19 AM.

        Comment

        • awyatt2
          Badcaps Veteran
          • Feb 2012
          • 407
          • america

          #5
          Re: Samsung PN51D450A2DXZA Version N411 has audio and screen went black

          most all the boards have the voltages labeled at the connector, you may have to improvise probes to fit inside the pins shield, I made a pair of probes for these using the barrel of a ball point pen with needles soldered to wires with clip-ons to attach to meter probes.

          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...