How do I find exact replacement LED bead for this backlight strip? and will it last?

Collapse
X
 
  • Time
  • Show
Clear All
new posts
  • link626
    Member
    • Feb 2019
    • 36
    • USA

    #21
    Re: How do I find exact replacement LED bead for this backlight strip? and will it la

    I had my TV set at 100% before I took it apart.

    So, any current below 350 will still power the LED, right?

    I used a 6V power brick, and was able to find the one bad LED which caused the whole side to go dark.

    Each strip has a 4 wire connector daisy chained.

    Comment

    • budm
      Badcaps Legend
      • Feb 2010
      • 40746
      • USA

      #22
      Re: How do I find exact replacement LED bead for this backlight strip? and will it la

      The LED can be driven up to 350 mA @25c so less current will be less brightness, you always want to drive the LED at 25% less than the max spec. If you look at the LG spec I provide, it does say not to drive at max spec.: "The exposure to the absolute maximum rated conditions may affect device reliability."
      Last edited by budm; 02-14-2019, 11:22 AM.
      Never stop learning
      Basic LCD TV and Monitor troubleshooting guides.
      http://www.badcaps.net/forum/showthr...956#post305956

      Voltage Regulator (LDO) testing:
      http://www.badcaps.net/forum/showthr...999#post300999

      Inverter testing using old CFL:
      http://www.badcaps.net/forum/showthr...er+testing+cfl

      Tear down pictures : Hit the ">" Show Albums and stories" on the left side
      http://s807.photobucket.com/user/budm/library/

      TV Factory reset codes listing:
      http://www.badcaps.net/forum/showthread.php?t=24809

      Comment

      Related Topics

      Collapse

      • edugimeno
        Finding the wrong part at a loooong led strip, part works fine, part flickers, all parallel...
        by edugimeno
        Hi There!
        I'm trying to help my friend who owns a restaurant be just bought.
        He has a very long LED strip running along all the walls and columns. The strip is attached facing down 2in above the floor, using a wall panel that ends in a metal rail that finishes the panel underneath
        It's stuck using, I guess, the 2 sided tape that comes with the strip
        The issue is that like 1/2 of the full length, including 1/2 one wall, another entire wall, and one column, flickers after 4 or 5 minutes ON. Particularly it flashes staying OFF most of the time and flashing ON for 1 tenth...
        09-05-2024, 09:34 AM
      • Tynan Dill
        Vizio e601i-A3 - Has Sound and Display, But No Backlight - Bad Power Supply Board or Bad LED Bulbs ?
        by Tynan Dill
        I was given this TV from my great uncle. He said it just wouldn't turn on one day out of nowhere, replaced the TV, and gave it to me to possibly fix and use for myself.

        Upon bringing it home and plugging it up, it showed a standby light.

        I powered it on and without a flashlight, the display showed the "V" but the lighting is very dim, but visible.

        The screen seems to blackout and stay black, but with a flashlight I can see the display.

        With my Playstation 4 connected via HDMI, and running a game I can hear sound.

        Assuming...
        11-22-2024, 01:46 PM
      • Won Dee
        Could you please help me find the exact replacement IC?
        by Won Dee
        Can't found the datasheet on internet....
        07-25-2024, 11:00 PM
      • adelage
        220v Led strip flickering
        by adelage
        Hi, I am installing a long led strip and I noticed that it frequently flickers slightly, it is not a strong nor regular thing, but it is noticeable and annoying. I have measured the voltage of the mains and it shows some fluctuations, it normally stays at around 226v, but often (every few seconds) drops down to 218/219v), and the flickering happens exactly at the same time. I have measured this at the counter and with every appliance off, so it's not related to the house electrical system, but that's how it comes from the supplier.
        I know that the best solution would be to get a voltage...
        11-03-2024, 09:49 AM
      • Briesmith
        Help Finding a Replacement LED Strip
        by Briesmith
        Hello Everyone

        I've spent hours looking at Chinese (mainly) websites offering replacement LED strips for backlighting monitors, TVs etc but I can't find one to replace mine.

        Mine goes into a BENQ GC2870, it contains 32 LEDs and is 355mm long. It is marked E117098 94V-0 on the front and NLM144LL077BDBKALB00751R901LGA on the back. I have attached some pix in case that helps....
        04-20-2022, 08:00 AM
      • Loading...
      • No more items.
      Working...