LG 49UJ701V Panel problem

Collapse
X
Collapse
 
  • Page of 1
  • Time
  • Show
Clear All
new posts
Previous template Next
  • porfyriadhs
    Senior Member
    • Oct 2023
    • 70
    • Greece
    #1

    LG 49UJ701V Panel problem

    Hello I have a tv with bad panel
    Brand LG 49uj701v. At first screen wasnt working only sound with backlight was working welll. The I tried tape at the lvds and it works but I get have image with shadoe
    Tags: None
    • porfyriadhs
      Senior Member
      • Oct 2023
      • 70
      • Greece
      #2
      2 Photos

        Comment

        Previous template Next

        Related Topics

        Collapse
        • perzyk23
          Lenovo T580 - LCD Panel problem - error 0288
          by perzyk23
          Good morning,
          I have a problem with Lenovo T580, which after error code 0288 suggests a problem with the display. I checked the display and it works on another laptop. I replaced the display cable with a new one. I programmed another BIOS (downloaded from this forum) and I still have the problem of a dead display - there is an image via HDMI, and the system does not detect the built-in LCD at all. The problem appears to be hardware. What can I check to confirm or disprove this? I found many threads on the Internet related to this problem 0288, but without specific solutions. Please advise....
          10-25-2024, 12:42 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
        • NolesFan
          Samsung un82ru88000f - Boot loop sort of but can correct with taping of LVDS ribbon
          by NolesFan
          Hello all... TV started boot looping. Opened the back panel and tried to isolate the problem. Just PSB no boot loop. PSB and MB no boot loop. Plug in the LVDS from panel to MB and boot looping starts up. It doesnt matter of order that I plug the LVDS ribbons back in, only 1 and no boot loop but as soon as 2nd one plugs in boot looping. I then noticed a flicker on the screen when I was closing the clip on the harness to the LVDS. Shut the lights off so I can see better, and I noticed as i slowly close it, I will get a picture, but as soon as it clips in, I lose picture and booting happens. So I...
          2 Photos
          10-24-2024, 06:36 PM
        • stylishconsultant
          un60j620dafxza - Samsung No Display Problem
          by stylishconsultant
          Hi All,

          Need help.

          I have a samsung un60j620dafxza led tv. When I plug it in it has no display, no sounds, and no standby lights.

          So I opened the tv and disconnected the power to the mainboard and the backlight powered up. This according to many people says that this is a mainboard
          problem. I checked the voltage coming from the stb and I read 1.3 volts on pins 1,3,5 and 7 which are low volts instead of 13 volts which i think the lcd panel
          might be drawing too much power from the power supply that it prevents the right voltage going to the mainboard....
          09-04-2024, 03:26 AM
        • triplefour
          SAMSUNG UN50TU8000F rebooting, backlight ok. No 12v to panel boards.
          by triplefour
          TV flashes backlight then reboots over and over. no image. Client said it used to have image for a bit before rebooting. Got worse over time.

          tcon is built into mainboard.
          Only one cable goes to panel boards.
          there is a cable from one panel board to the other that links them.
          cost cutting measure that results in us having harder time to diagnose.
          removing the link to the second panel board allows TV to stay on with stable backlight but no image.
          used cut off tape method to mask 1 maybe 2 pins on the side of the cable that goes to that second panel board....
          07-28-2022, 07:59 PM
        • Loading...
        • No more items.
        Working...