LG 50LS4000 T-Con or not ?

Collapse
X
 
  • Time
  • Show
Clear All
new posts
  • Ducs
    New Member
    • Aug 2020
    • 2
    • Canada

    #1

    LG 50LS4000 T-Con or not ?

    Hello Everyone,

    I need some advice from you. I am working on a LG 50LS4000 screen with vertical lines, tcon board is buzzing, sounds like arcing, but no visible traces of damage. There is also a black 1" dot on top left corner of the screen. What do you think the issue is ?

    Thanks in advance

    Matt
    Attached Files
  • yokoono
    Badcaps Veteran
    • Apr 2010
    • 505

    #2
    Re: LG 50LS4000 T-Con or not ?

    Defective panel

    Comment

    Related Topics

    Collapse

    • kca
      LG 82UN8570AUD ~ TCON or PANEL?
      by kca
      Hello all ~

      Hope this finds you well. This LG 82UN8570AUD (April 2021 model) 4K UHD television has full audio capabilities but video is compromised / problematic.

      When I picked up this large LG tv it had a full black screen upon startup. Previous owner said it just went black one day. No popping sound or anything else of note.

      I got the display to work by taping off several traces of the right-hand side ribbon cable on the TCON that leads from TCON to PANEL. However, despite dozens and dozens of attempts to find the right combination / range of traces taped...
      08-31-2025, 06:38 AM
    • x_orange90_x
      TCL 50S535 bad tcon or panel issue?
      by x_orange90_x
      Just bought this for 10 bucks yesterday hoping to fix it. The guy said water dropped inside from a dehumidifier hose and it started showing black and white vertical bars then went blank. When I got it home and turned it on it came on fine and displayed correctly but I was noticing faint vertical bars in the image. After a little bit I turned it off and back on and it was a black screen again. I opened it up to check for water damage and corrosion but didn't find anything of the sort. I cleaned the ribbons anyway and reconnected them but still got a blank screen. If I disconnect the right side...
      03-29-2025, 11:02 PM
    • advant
      Driving a Sharp TCON/panel with a universal main board
      by advant
      This thread is about trying to get an Universal Main Board to work with a Sharp TCON and panel.

      I have a Sharp LC-46D85UN TV that has had a main board issue. Since this model is from 2009, I am not able to find an exact replacement of the main board. Instead, I decided to see if I can future proof this tv by getting a Universal Main Board (T53U21.2) from China to work with the Sharp TCON (CPWBX4291TPZA) and panel. The universal main board supports a 8 bit dual channel LVDS interface whereas the TCON requires a 10 bit dual channel LVDS input. I have modded the LVDS connector to match...
      02-03-2020, 12:25 AM
    • howardc64
      A1312 (27” iMac 2009-2011) A1407 (Thunderbolt Display) A1316 (Cinema Display) Display Black Screen Repair
      by howardc64
      Problem

      This is an LG edge LED lit LCD Display. The LEDs are on the bottom edge of the display. There are 2 bars (left and right) Each bar has many LEDs and a 6 pin connector. Each pin drive several LEDs thus is the highest current flow / heat junction. The weak lead free solder gradually fails with thermal expansion/contraction cycling and increases resistance. PSU will compensate up to a point, then when the current is too high, PSU just shut down the backlight causing a dark display. I have even seen one which the connector just fell off as solder points became completely detached....
      08-04-2024, 10:36 PM
    • Hakuu
      LG OLED77G1PUA - No Video / Audio after a TCON Board change and Software Update
      by Hakuu
      Hi There,

      This TV was auto switching off after few seconds with some vertical lines on the screen, so got a new TCON board and replaced it.

      After replacing the TCON board it was working fine and i set it up with everything, used for few hours, then had the bright idea to update the software on it. During the update process, TV switched off and now no audio or video. No relay switch sound.

      More Details

      TV Model - LG OLED77G1PUA

      Got the same exact TCON board from TVPartsToday and replaced it. But didnt transfer the EPPROM data (didnt...
      07-12-2023, 02:37 PM
    • Loading...
    • No more items.
    Working...