Bad Panel Side Tabs

Collapse
X
 
  • Time
  • Show
Clear All
new posts
  • handsworth
    Senior Member
    • Oct 2015
    • 174
    • United States

    #1

    Bad Panel Side Tabs

    Can someone explain the purpose of the side tabs on a led tv? I have a 55" Vizio E550i-B2. I was replacing the screen and when I got it all back together, the display was distorted. Screen not cracked, just distorted colors and bars. I started pressing on the side tabs to see if they had any effect and the display changed to worse as I pressed on different ones. I had read someone here cut theirs off for what purpose I forgot. So nothing from nothing leaves nothing, I cut mine off on that side one by one. Display started clearing up section by section. Tv is perfect again. What did I do? Is this a temp fix? Should I be concerned? Before and after pics with tabs I cut off. Thanks
    Attached Files
    Last edited by handsworth; 12-04-2018, 11:07 AM.

Related Topics

Collapse

  • howardc64
    TCL 55S425 few horizontal lines, potential failure on both side of panel/buffer board
    by howardc64
    All left and right refers to looking from rear of TV (or looking from front with TV upside down)
    • TV came with vertical bars and no image. Found faulty TVS on left buffer board. Also replaced T-Con (may have damaged the original while hot air removing components, board has slight warp) and have full image but few horizontal lines on the screen. Some of the lines appears to be 2 pixel tall while others are 1 pixel tall.
    • Disconnecting left and right buffer board potentially reveals problems on both sides with different signals (unless this T-Con require jumper like Samsung FB_TRDY1&3) Fault
    ...
    07-24-2025, 05:17 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
  • ashyt16
    Toshiba TV bad panel half screen dark - pull tabs or not?
    by ashyt16
    Hi fellas, I have a Toshiba 50u6863db (vestel crap) here belonging to a family member.
    The TV was given me to repair (possibly) as it had developed a blank screen, just back lights and sound.

    Upon further investigation it turned out one of her cats had sprayed on the screen as I could see it on the edge of the panel and tabs and it stank. Looks like it probably shorted the circuitry. I cleaned it up and still the same.

    I initially suspected Tcon board as none of the test points were showing correct voltages. Tried removing one LVDS cable at a time, same result....
    10-26-2020, 05:47 AM
  • Rozp
    70LE660U dark cloud or black screen with sound.
    by Rozp
    Hello Everyone,

    This is my first post so I will try to be as precise as possible without making this post too long winded. Unfortunately I don't have pictures of the original problem but I included images of the TV internals.

    I have a Sharp 70LE660U. The problem started a few months ago with the bottom row looking out of sync and was dark on the left side and then fading to transparent on the right side. Shortly after, a dark cloud appeared in the center of the screen. The dark cloud started small and shaded but the image was visible. It also affected the menu area....
    08-29-2023, 05:25 PM
  • howardc64
    LG 49UJ6500 LCD panel lighter band that goes away
    by howardc64
    49UJ6500 LCD panel has a lighter band on top when first powered on. Goes away (or gets much fainter) after TV on for a few min. After powered off for awhile and power back on, same band appears. If powered on immediately after powering off, no or much fainter band. Running the latest firmware.

    Disassembled the TV and lifted the LCD panel during testing. Band is on the LCD panel (can see the band on the panel as I lift it slightly) Backlight is perfectly even at the top edge. Double checked LCD panel alignment in the frame and is perfect but since band moved with the panel, its on...
    02-19-2023, 12:13 AM
  • Loading...
  • No more items.
Working...