LG 60LA7400 LED TV white wash screen

Collapse
X
Collapse
 
  • Page of 1
  • Time
  • Show
Clear All
new posts
Previous template Next
  • ECE3040
    New Member
    • Mar 2017
    • 4
    • U.S.A
    #1

    LG 60LA7400 LED TV white wash screen

    Hi all,

    My 3 yrs old LG 60LA7400 LED TV started to act up last week. The screen is white washed (see attached pic). I purchased a new Tcon board from shopjimmy but that didn't resolve the issue. I unplugged the left flex cable from the Tcon board and the right screen becomes normal. Maybe there is something wrong with the left LED board on the bottom of the TV? If I unplug both flex cables, the screen is nice and dark.

    I also noticed a red LED is blinking on my LED driver board. Does that mean it's sensing something is not working correctly?

    Do you guys have any ideas what else could cause the issue and how to I go about fixing it.

    Thanks

    Derk
    Attached Files
    Tags: None
    • dick_barton
      Badcaps Legend
      • Aug 2015
      • 6643
      • Wales
      #2
      Re: LG 60LA7400 LED TV white wash screen

      If your Tcon is located at the bottom of the set the carefully check the slim panels the tcon connects to for signs of water damage.
      Willing to help but I'm no expert.

        Comment

        Previous template Next

        Related Topics

        Collapse
        • Daren87
          Sony 8K XBR-75Z8H White Screen Vertical Bars Tcon Code. Help Needed🙏
          by Daren87
          Hello everyone,

          I've recently been given a Sony 8k Z8H. It's got a white screen with two vertical black bars. At times it's given me the 5 blink Tcon code. Testing voltage on the Tcon I can see some low or missing voltage. I've done a basic visual check of cables and the COF. Not seeing anything obvious. The original Tcon seemed to have good caps until turning it over. On the bottom I found maybe 10 caps with both sides of the caps shorting to ground. I thought ok these caps and likely other components on the Tcon are shorted so let's try a replacement Tcon. I just received the...
          08-13-2023, 03:25 PM
        • 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
        • 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
        • 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
        • alltvrepairs
          Lg TCon test pins for screen test
          by alltvrepairs
          Hi,
          i have a 65 Panasonic TX-65HX710E using vestel 17MB170 main and Lg tcon.

          Few drops of water fell probably near COF and have no display. Tried removing tabs but no.part of display present as if tcon fuse open. However 12v is present and tcon can be felt warm enough that supplies are present. Backlight and sound ok.

          Anyone knows if this TCon 6870c-0805A has any special test pins for rgb test?

          Appreciate your help....
          2 Photos
          06-13-2025, 06:33 AM
        • Loading...
        • No more items.
        Working...