Samsung PS50B450B1WXXH noise in the picture

Collapse
X
Collapse
 
  • Page of 1
  • Time
  • Show
Clear All
new posts
Previous template Next
  • monti
    Member
    • Dec 2017
    • 15
    • Bulgaria
    #1

    Samsung PS50B450B1WXXH noise in the picture

    Some time ago i got this Samsung as a not working tv to try to repair it, the problem was at the Y-main board, someone had tried to repair it before me and there was missing parts off the board including missing heatsink, i had few attempts at fixing the board but were unsuccessful so i got a new board from Aliexpress and the tv is now working but it has rally bad noise in the upper and lower parts of the screen, its especially bad in the upper left hand corner of the screen. Can someone tell me if this is fixable or the panel is done for. Thank you!
    Attached Files
    Tags: None
    Previous template Next

    Related Topics

    Collapse
    • Tynan Dill
      Vizio e601i-A3 - Has Sound and Display, But No Backlight - Bad Power Supply Board or Bad LED Bulbs ?
      by Tynan Dill
      I was given this TV from my great uncle. He said it just wouldn't turn on one day out of nowhere, replaced the TV, and gave it to me to possibly fix and use for myself.

      Upon bringing it home and plugging it up, it showed a standby light.

      I powered it on and without a flashlight, the display showed the "V" but the lighting is very dim, but visible.

      The screen seems to blackout and stay black, but with a flashlight I can see the display.

      With my Playstation 4 connected via HDMI, and running a game I can hear sound.

      Assuming...
      ORIGINAL POWER SUPPLY BOARD
      7 Photos
      11-22-2024, 01:46 PM
    • m1ch43lzm
      HP Pavilion 15-eh Board DAG7HAMB8F0 - CPU throttling to 0.4GHz (PROCHOT_EXT) and black screen
      by m1ch43lzm
      Hi, this is my personal laptop, which the original board (lets call it Board A) blew up PU8700 (TPS51486), making a hole on the board, i had left the laptop at my desk one day with the battery fully charged and didn't touch it for a week, but when i tried to turn it on it didn't
      Thought the battery was dead, so i plugged in the charger then tried to power on, the power LED blinked once, charged LED still orange, unplugged the charger, plugged in again and I noticed the "magic smoke" smell, so i unplugged the charger, removed the back cover and saw the blown IC (the "magic...
      05-12-2025, 08:37 PM
    • ohren
      Upgrading a Samsung ue55nu7096u with logic board from an ue55ru7105k -- good idea?
      by ohren
      I hope this is the right forum to post in despite not technically being a repair, but still a question of swapping boards.

      I thought I'd explore the possibility to upgrade an existing working Samsung ue55nu7096u with the logic board (and power board if needed) of a newer model (ue55ru7105k) of the same size and appearance (and resolution). The reason being I'd like the extra inputs of that board including component in, an extra HDMI port and bluetooth. Its panel is broken so I have no use for the board otherwise.

      The models launched in 2018 and 2019 respectively....
      09-08-2023, 05:24 PM
    • C152Heavy
      Samsung LN46C630K1F – Intermittent Backlight, BN44-00341B Power Board
      by C152Heavy
      Samsung LN46C630K1F – Intermittent Backlight, BN44-00341B Power Board

      Summary for TL-DR readers:
      • Backlight is intermittent, may come on with TV boot or not. No flickering, never fails during TV on.
      • Have obtained Samsung schematic & service documents - Can upload if helpful.
      • Have read ALL applicable threads
      • C1818 and CP820 replaced as low hanging fruit
      • CN802 data taken for normal and failed BL operation. SUMMARY: Pin 2 - 5vDet = 3.52 @normal, 0.0 @BL fail. Pin 6 - EPWM = 1.631 @normal, 1.058 @BL fail.
      • VCC pin (18) of PFC...
      01-11-2023, 02:53 PM
    • ermals
      Samsung UN55H8000AF - No Picture, Working Backlight, Replaced T-Con Board
      by ermals
      Hi all!
      I've recently run into an issue with my Samsung UN55H8000AF LED TV displaying no image. I've done quite a bit of research in terms of what could be wrong with it. Below are the steps I've taken prior to reaching out here for some assistance:

      1. I've tried replacing the T-Con board (BN95-01594A), twice and have still experienced the same issue with all the boards I've tested with.
      2. I've tried to remove one side of the ribbon cable that goes from the T-Con board to the panel and still not getting any image on left or right side.
      3. I've checked voltages...
      08-01-2022, 10:35 AM
    • Loading...
    • No more items.
    Working...