Help Identify this IC rom Laptop screen. Markings are "40=".

Collapse
X
 
  • Time
  • Show
Clear All
new posts
  • Beertimenow
    Member
    • Mar 2020
    • 21
    • United Kingdom

    #1

    Help Identify this IC rom Laptop screen. Markings are "40=".

    Hi is any1 know what component is it?
    It is a LED driver or controller from Laptop screen.
    Markings are "40=".
    I've attached a photo if this ic.
    Thanks
    Attached Files
  • SMDFlea
    Super Moderator
    • Jan 2018
    • 20306
    • UK

    #2
    Re: Help Identify this IC rom Laptop screen. Markings are "40=".

    Originally posted by Beertimenow
    Hi is any1 know what component is it?
    It is a LED driver or controller from Laptop screen.
    Markings are "40=".
    I've attached a photo if this ic.
    Thanks
    Parts with an = are usually Richtek .Just google "Richtek 40="

    https://www.badcaps.net/forum/showthread.php?t=90619
    All donations to badcaps are welcome, click on this link to donate. Thanks to all supporters

    Comment

    • Beertimenow
      Member
      • Mar 2020
      • 21
      • United Kingdom

      #3
      Re: Help Identify this IC rom Laptop screen. Markings are "40=".

      Originally posted by SMDFlea
      Parts with an = are usually Richtek .Just google "Richtek 40="

      https://www.badcaps.net/forum/showthread.php?t=90619
      Hi, thanks for reply, but I tried to google it and also tried all the Richtek common databases with no luck

      Comment

      • mon2
        Badcaps Legend
        • Dec 2019
        • 13830
        • Canada

        #4
        Re: Help Identify this IC rom Laptop screen. Markings are "40=".

        It may be a private labelled part for some OEM customer. Regardless, find a reliable (good reviews) vendor on AliExpress with Richtek parts.

        Ask them to source this '40=' Richtek device.

        They will carry it in Asia.

        Comment

        • piernov
          Super Moderator
          • Jan 2016
          • 4435
          • France

          #5
          Re: Help Identify this IC rom Laptop screen. Markings are "40=".

          https://cdn.badcaps-static.com/pdfs/...9477ca7eea.pdf
          OpenBoardView — https://github.com/OpenBoardView/OpenBoardView

          Comment

          • Beertimenow
            Member
            • Mar 2020
            • 21
            • United Kingdom

            #6
            Re: Help Identify this IC rom Laptop screen. Markings are "40=".

            Thanks a lot.

            Comment

            Related Topics

            Collapse

            • VcemPzd
              Black screen Lenovo legion 5 pro 16ACH6H gaming laptop
              by VcemPzd
              Hello everyone !

              My name is Chris, I am a 30 years old embedded software developer working in the automotive industry. I am really passionate about learning new skills and repairing/crafting stuff. I came around this forum last week with the goal of repairing my faulty gaming laptop, indeed, I was video editing on it when suddenly a black screen popped and never disappeared I bought some stuff to try to repair it and learn as many things as possible about computer repairs but nothing worked so far. When the black screen appeared, my legion 5 pro was connected to my external monitor...
              04-28-2025, 10:14 AM
            • FreakyMex
              Trouble to identify part (Lunii screen) for replacement
              by FreakyMex
              Hello guys. I'm a complete noob in electronics. I'd like to repair my child Lunii's (a "story box"), basically an audio player that allows the childs to choose between several options the places, characters, objects of the story, and then play a story according to the choice of the child. There is a screen that display the selected option before each choice. The Lunii fell and the screen is now broken.
              I'd like to repair it (probably just have to change the part, because the lunii still works perfectly fine) but I can't manage to identify the part/order it online. Do you have any...
              02-17-2025, 01:16 AM
            • jean luc ferre
              laptop hp g72 b52sf screen problems
              by jean luc ferre
              Hello,
              on this laptop hp g72 b52sf i have screen problems as you can see with the photo joined in attachments.
              the used graphic card is "intel hd graphics" and the id of the integrated screen is : "monitor/SEC3354".
              i verified the driver of the péripherals and they are ok. i verified the definition and settings of the graphic card and of the screen : definition 1600x900 and refreshment frequency :60hz. (they are the sames for the graphic card and the screen).
              i don't understand the reasons of the white stripe at the bottom of the screen below the task...
              06-07-2025, 03:27 PM
            • Admin
              Other Useful Threads - Laptop Screen Compatibility, Useful ICs, BGA Chip Suppliers, NVidia bumpgate
              by Admin
              Some sticky topics have been moved to this thread:

              Laptop Screen Compatibility
              - finding a compatible laptop screen with LED-backlight.
              Laptop Screen Compatibility

              Most Common ICs - a list of the most common ICs (Integrated Circuits) required for repairing a laptop
              MOST COMMON IC FOR LAPTOP YOU SHOULD HAVE IN STOCK

              Let's Talk About BGA Chip Suppliers - anyone who repairs computers at component level has had to order chips from China at some point. Large BGA chips like graphics chips, chipsets and now CPUs are in increasing demand, due to their...
              12-27-2023, 03:43 AM
            • 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
            • Loading...
            • No more items.
            Working...