Lg 60pk590 half screen fault

Collapse
X
Collapse
 
  • Page of 1
  • Time
  • Show
Clear All
new posts
Previous template Next
  • wreksta
    Badcaps Veteran
    • Aug 2013
    • 508
    • england
    #1

    Lg 60pk590 half screen fault

    Hi all can you help I have this set I bought it cheap as gets half a screen only
    I replaced the top buffer board as It never heated the heat sinks at all on upper buffer

    Bottom buffer heats up no problem
    I've tested the y main all mosfets diodes check out

    Could a test mode bring full screen on

    I have checked the y board over and noticed 3 resistors that are located near where top buffer is someone has worked on them before as soldering is lumpy

    Any ideas please

    Y main part number EBR63450401


    Upper buffer EBR71853501

    Edit
    Auto ex gen test mode works on lower screen only
    Last edited by wreksta; 06-02-2014, 12:47 PM. Reason: Added extra
    Tags: None
    Previous template Next

    Related Topics

    Collapse
    • Chrissygizmo
      Samsung UE55JU6800K half screen dark
      by Chrissygizmo
      Hello everyone, I’ve just been given a Samsung UE55JU6800K smart tv as it had white spots on the screen due to the led lenses falling off. After refitting them & putting the tv back together I thought it was a nice easy fix for a free bedroom tv , then I tried it before screwing the back into place. I realised that the right side of the screen was darker than the other side, I removed the screen again as I thought the backlights had failed but they are fine.
      I put the screen back in place & turned it back on . The screen seemed to be ok again but different screens on the same...
      02-10-2025, 12:33 AM
    • howardc64
      TCL 49S405 double image
      by howardc64
      LCD displays a 2nd image slighty offset vertically. And multiple pairs of black lines along the bottom. Probably common as google "TCL 49S405 double image" pulls up this ifixit post ( link ) with identical ( nearly, but their fault seems to be on the other half of the panel than mine ) problem without solution.

      This one looks to be a more difficult to diagnose because most? of TCON seems integrated ( CSOT BGA on buffer baord) into the left panel edge board ( looking from rear of TV) There are 2 buffer boards for each 1/2 of the screen. Main connects to the left buffer board...
      06-23-2025, 03:20 PM
    • Ryan.man
      Macbook 2017 with touchbar (A1706) won't turn on after removing the screen
      by Ryan.man
      Hello everybody! Posting this in hopes somebody has some expertise that leads to a clear path of troubleshooting that saves me a lot of time!

      My macbook has the flex cable problem, the one that prevents the screen turning on. Ive been dealing with this for the last 3 years. Last year it went dead and I managed to fix it following youtube tutorials. But my fix wasnt the best, the problem returned a month later. This week, it went dead again. I again tried to fix it.

      This time the original cable broke too close to the screen, it can't be fixed without tearing the screen...
      02-04-2025, 12:23 PM
    • 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
    • valvashon
      LG 55UH6150- trouble powering up, then half lit screen (pictures!)
      by valvashon
      The 55" LG has been in the basement for a few months without being used. Turned it on yesterday, set came on as it should and showed a complete screen for about 5 seconds (was on a broadcast channel but no antenna was connected), then the screen went mostly dark with about 1/3 of the screen on the right lighting up with brighter lines in that lit part (sorry, no pictures of that). Power LED was cycling too, preventing the TV from fully powering up.
      Pulled the back off, all boards looked OK. Pulled the LED connector, turned the set on to see if it would power up but I don't belive it...
      11-24-2024, 12:08 PM
    • Loading...
    • No more items.
    Working...