Dell U3419W horizontal lines and flickering

Collapse
X
Collapse
 
  • Page of 1
  • Time
  • Show
Clear All
new posts
Previous template Next
  • Guybrush
    New Member
    • Sep 2021
    • 2
    • Uk
    #1

    Dell U3419W horizontal lines and flickering

    After watching too many electronics repair videos (but not monitors) I came across a dell monitor with flickering horizontal lines. I haven't purchased it yet so don't have much info, but from the video and pic do you think there is a chance of repair or is just simple panel damage?

    Seller claims; "but due to sun damage has some grey lines going through it"
    https://i.imgur.com/VpTcZFn.mp4

    Thanks
    Chris
    Attached Files
    Tags: None
    • CocoSloan
      New Member
      • Oct 2023
      • 1
      • Macedonia
      #2
      Re: Dell U3419W horizontal lines and flickering

      Same on my AOC 27G2 . After 4years 144HZ started to show lines same like in that example video. Had to switch to 120Hz - working fine.
      Any chance to fix this ? I mean is the panel just too damaged or maybe there is a fix recapping or adjusting some voltages ?

        Comment

        Previous template Next

        Related Topics

        Collapse
        • mrsith
          Samsung UE70TU7100 - flickering horizontal lines
          by mrsith
          Hello again good souls.

          Got an UE70TU7100. The TV starts up just fine, but right hand side of the screen is horizontal striped a bit, and there are some flickering horizontal lines on the whole length of the screen. I've seen similar static horizontal lines sometimes, when applying the cut tape method and covering wrong number of pins.

          I've cleaned every connector with ipa, tried cut tape method on main LVDS ribbon as well as small ribbons, connecting the panel boards at the bottom. Tried squeezing the bezel and playing around COFs, but no reaction at all. COFs and...
          02-13-2023, 05:36 AM
        • reessi
          ACER BM320 Monitor - Horizonal Flickering Lines After a While
          by reessi
          Hello,

          The monitor started off showing flickering thin (1 pixel) lines horizontally every say 3mm..

          They are black on the right and gradually fade to nothing on the far left.
          They start either after 5 mins or up to 2 hours after so annoying for testing.
          They flicker continuously very fast! With a slight pause milli-second every second.

          Initially I cleaned the LVDS cable and connected to the T-Con and then it worked fine for 3 weeks but not sure if this was just co-incidence.

          I tested each half by removing the first the left flex from...
          06-03-2025, 09:58 AM
        • vulubalulu
          Dell U2718Q, horizontal lines. second opinion welcome
          by vulubalulu
          I have never seen an issue such as this one. horizontal lines across the monitor in a consistent manner. I am really interested to get to the bottom of this and I'd value any input from the community.
          There are three separate PCB parts attached to each other. They function as SMPS, backlight driver and main board.
          I checked the all three blue PCBs: SMPS outputs 19V, PWM controller + mosfets without anomalies, main board has 3V, 5V, 10.5V and 19V present. Crystals output the right clockspeed. This is to be expected as the monitor turns on.
          I haven't explored at the green PCB (TCON...
          7 Photos
          08-14-2024, 03:08 PM
        • Ihandyrepair
          Samsung QN70Q6DTA Ghost or horizontal lines after tape fix horizontal line
          by Ihandyrepair
          Hi guys

          I just started fixing 4k TV few months ago. so I am still learning a lot
          I got this tv from friend complaint is ghosting or horizontal lines on image.

          never saw the original symptom but I took the tv back home. the funny part is that after bringing to home, the tv worked fine no issue for 3 weeks.
          then it started to show the ghosting white image.
          I started using the tape method, but this tv does not have a T con board and it has only 1 ribbon cable from main board to the tv panel.
          it has 3 thin small boards at the bottom of the...
          12-05-2022, 04:18 PM
        • reaper422
          DELL P2717H 27 inch white horizontal lines on screen
          by reaper422
          Hello,
          I have a problem with the Dell monitor whit LCD Panel MV270FHM-N20
          that starts with a normal picture but after three or four seconds of work, it starts to draw horizontal lines progressing from the bottom to the top.
          The power supply generates stable voltages.
          The power supply of the matrix is 5 volts, which is also stable.
          I don't think normal sounds can be heard from the LVDS board.
          After measurements are made on the test points on LVDS, the measurements are
          VGH 23.7v
          AVDDS 11.7v
          AVDD 11.7v
          VOFF -7.7v
          VGL...
          02-19-2022, 05:41 AM
        • Loading...
        • No more items.
        Working...