Samsung PN 50b55ot2f, No Picture, has sound

Collapse
X
 
  • Time
  • Show
Clear All
new posts
  • sky608
    New Member
    • Mar 2015
    • 7
    • ca

    #1

    Samsung PN 50b55ot2f, No Picture, has sound

    Hi, This is my first post. I have checked the VA 56, reads 56.4dc, VSC -200, reads -198, VS 208, reads 207.6, VE 92, reads 92.2. The control board green led light is flashing normally. All the fuses including the green ones are good on the y main and x main. I noticed the x main has a buzzing noise and the top heat sink is warm and bottom heat sink is hot. The y main has power to the fuses but both of the heat sinks are cold. I did pulled the y main and x main out and visually look at it and found no unusual burnt marks.
    Attached Files
  • tom66
    EVs Rule
    • Apr 2011
    • 32560
    • UK

    #2
    Re: Samsung PN 50b55ot2f, No Picture, has sound

    Is there a slight glow from the screen in a dark room?
    No cracks on the panel?
    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

    • sky608
      New Member
      • Mar 2015
      • 7
      • ca

      #3
      Re: Samsung PN 50b55ot2f, No Picture, has sound

      hi tom, thanks for the input. You are very helpful in this forum. I don't see any glow when i power on the set in a dark room I don't see any crack on the panel. Does this mean the panel is bad?

      Thanks...

      Comment

      Related Topics

      Collapse

      • TR103
        Samsung TV model UE50TU: rebooting, backlight, sound, but no picture
        by TR103
        Hi, I have a Samsung UE50TU with:
        - sound and backlight, but no picture
        - when it arrived, it had a picture for a few seconds
        - it keeps rebooting
        - without ribbon cable between the two panel boards, it does not reboot but I have no picture
        - without cable between mainboard and lcd panel, it does not reboot (but obviously i have no picture)
        - when i try a tape fix, its keeps rebooting, unless I tape off pin 1 (the innermost pin). In that case it does not reboot but I have no picture.

        - without cable between mainboard and lcd panel and with a jumpered...
        01-22-2025, 04:12 PM
      • Mgiffune
        Samsung UN60EH6000F Black Screen, Backlight and Sound Good. Power Cycle Returns Picture
        by Mgiffune
        I have a 60 inch Samsung UN60EH6000F flatscreen TV. The screen went black a few months ago Sound is good, backlight is good, no menu. I replaced the TCon board with a used board purchased from Ebay. It worked fine for a 3-4 months, then the screen started ‘fading' back. Once again, sound is good, backlight is good, no menu. However, this time the picture looks fine for about 10-15 minutes, then fades back. If I power cycle the TV, the display reappears, for another 10-15 minutes, then fades black again. Repeatable ever time.

        I ordered a supposedly ‘new' Tcon board this time, and
        ...
        06-09-2024, 10:28 AM
      • Ierwin
        Samsung UE60KU6079 backlight okay mainboard responsive, no picture, no sound
        by Ierwin
        Hello everyone,
        Ive got a UE60KU6079 on the workbench that is giving me some headaches trying to troubleshoot.
        The previous owner stated that there had been white dots on the screen which from the description sounded like some lenses fell of the backlight LEDs.
        He had opened the TV from the back, trying to get to the backlight, supposedly gave up, reassebled everything and gave the TV to me.
        I expected the worst like ripped COF cables or a cracked panel but could not find anything like that yet.
        Anyway I still fully expect that there has been something seriously damaged...
        05-13-2025, 03:31 PM
      • jchang
        Samsung UN70NU6900F no picture and no sound
        by jchang
        Hi all

        I was just given a Samsung TV with the issue. I read various threads and videos and attempted the ribbon tape method to gain an image, but no luck.



        Symptom:
        No picture no sound.
        When I plug in the power cord, Backlight LED turns on for a half second and then turns off. The red LED next to the power button located center bottom flashes 2 or 3 times. When the power button is pressed after, it does the same thing.
        No sound at all.



        What I tried:
        1. I tried unplugging the left or right ribbon...
        01-09-2023, 06:28 PM
      • marekk
        Samsung QE55Q67RAT no sound and bad picture when streaming
        by marekk
        Hi,

        I got Samsung 55 inch QLED QE55Q67RAT where there is no sound at all and when using youtube for example picture is not clear and noisy.
        I have swapped Burr-brown 88002A chip on the mainboard but didn't help, different set of speakers didn't help either

        Mainboard is based on pcb BN41-02695A BN94-14007B

        I will appreciate any help

        Many thanks

        Marek...
        05-29-2025, 02:23 AM
      • Loading...
      • No more items.
      Working...