Fix iMac 27" LED Backlight Failure | How does iMac backlight work

Sdílet
Vložit
  • čas přidán 6. 09. 2024

Komentáře • 35

  • @rimooreg
    @rimooreg Před 2 lety +10

    You, sir, went the extra mile for we CZcams iMac folks. Not only did you source the backlight but you've gone so far as to furnish the pin out for said led backlight. The Only reason to go to that effort is to help out a random person who you don't even know. How kind and refreshing a video you have graciously given to all in the community. Thank you, and thank you. In these CZcams days full of self serving, full of ads, then sponsored by more ads, I am pleased to have accidentally come across your video looking to clean the dust out of my late 2015 i7 4gig vram IMac. Please keep up the good work, son. (You seem to be 1/2 my age). RM

  • @kumarbhatia6566
    @kumarbhatia6566 Před 3 lety +1

    Thank you! Just did the exact repair where the LEFT half of the screen was quite dark. The lower left SMD connector broke off the light panel. Used wire-wrap wire to create extensions and now the panel is working again. Thank you again for posting your concise process.

  • @anthonyrousseau7276
    @anthonyrousseau7276 Před rokem +1

    Hello and thank you for sharing your experience.
    For my part, I tried the first solution of breaking the connector and trying to solder directly but it did not work.
    So I was patient and disassembled the whole screen to make this repair.
    The difference is that I didn't use thinner wires and connected the whole thing to the screen via heat-shrink tubing.
    I directly soldered the flat cable to the printed circuit board, having glued it beforehand with a cyanoacrylate dot.
    I took the opportunity to do this operation on each side and here is a wiring complement for the right side:
    D1+ D34- D2+ D35- D3+ D36-
    And for those who would like to test each LED circuit, you should apply 36V DC voltage per 12 white LEDs in series and allow about 1A.

  • @jonstownends8747
    @jonstownends8747 Před rokem

    just what i was looking for...... especially the part that showed how the computer looks if the left bank has failed...thanks... very much appreciated.

  • @4everfreethinker
    @4everfreethinker Před 2 lety

    This video may or may not be what I’m looking for so I was going to ask a few questions. But first, I scanned the comments to see if they were already answered. This guy answered ZERO viewer questions! What is the point in posting a video like this if you’re not going to engage with your viewers and answer questions?! That’s stupid!

  • @hellagesoon
    @hellagesoon Před rokem

    I choose the hard way as always and went for screen disasembly to solder the connector. Tryed to save aluminum tape, you cant just cut it and seal with electrical tape. When removing white plastic that holds connector i broke led lamp, just remove led strip and leave white plastic in place. Will order led strip now.

  • @lzk8914
    @lzk8914 Před 3 lety +1

    thx. I have this problem after I open my mac replace a ssd drive 5 years ago, let me try to see if this would fix

  • @anthonysoimie
    @anthonysoimie Před 3 lety +1

    Hello
    Could you detail the disassembly to access the leds. I did not succeed in disassembling them

  • @stansteez
    @stansteez Před rokem

    the backlight of my 2010 27" imac looks exactly the same!

  • @mrbill2380
    @mrbill2380 Před 3 lety +6

    What voltage is required to test led?

  • @handmade_videos
    @handmade_videos Před 3 lety +1

    Good work! Which problem could it be when the LEDs turn off and on without reason? Greetings

  • @vesolcable
    @vesolcable Před 2 lety +1

    Thank you for video.

  • @masbroyoendar5353
    @masbroyoendar5353 Před 3 lety +2

    AUTO SUBSCRIBE, THANK FOR VIDEOS, REGARDS FROM INDONESIA.. LOV U FOREVER..

  • @me2xv
    @me2xv Před 2 lety

    Would this be basically the same process for the 2017 iMac 27 in? My iMac boots up, fan turns on and the startup chimes normally, but the screen is black and will not turn on. I took my iMac to my local U Break I Fix store and they said that the login name and round logo can be seen faintly. They couldn't pinpoint the exact problem, but they narrowed it down to a display replacement or replacing the backlight chip.

  • @keithrodgers1030
    @keithrodgers1030 Před 3 lety

    I have backlight issues too , familar with removing the panel and checking leds for diagnosis. My led 4 fails to light which makes me think the video card has gone. What do you think ?, My other 27 Imac boots and you get the bong but no screen image. So its booting but no backlight led on.

  • @mickey7106
    @mickey7106 Před 3 lety +1

    What size wire is that to solder on to the led strip?

  • @mofrak
    @mofrak Před 3 lety +1

    When the backlight fails, can you still see the screen contents faintly like on other displays? I have a 27" iMac that seems to boot up fine, but the display is totally black.

    • @keithrodgers1030
      @keithrodgers1030 Před 3 lety

      Same here one of mine has the bong tone so its booting but no display. The led source is a god send I ust thank him for that great tip.

  • @elchacal535
    @elchacal535 Před 3 lety

    Hi there, My imac 2010 27" screen gets super hot.. do you know what cause it to over heat? just the screen get hot. specially the top left corner. if you can share you views that be great, sir thanks

  • @gagutierrezr86
    @gagutierrezr86 Před 3 lety

    Good afternoon, what type or diameter of cable do you use to make the welding? Thank you very much !!

  • @B.E.H.
    @B.E.H. Před 2 lety

    Do you have link to a full vídeo of disassembly process, please?

  • @aivaras_gikys
    @aivaras_gikys Před 3 lety +2

    Thank You!!!

  • @tomaszpaul2096
    @tomaszpaul2096 Před 2 lety

    Hi did You make video for dissembling display for replacing whole light stripes ?

  • @marilynrose5876
    @marilynrose5876 Před 3 lety +1

    Hey thanks..now I know why no one wants to repair this for me..it’s too finicky, and time consuming. Wouldn’t be worth their time.

  • @pentiummmx2294
    @pentiummmx2294 Před 2 lety

    what causes backlights to die?

  • @regisdrevon1554
    @regisdrevon1554 Před 2 lety +1

    Why make it simple when you can make it complicated...
    Instead of destroying the plastic contactor, I put a drop of WD4O, for electrical contacts, two small wedges (mini nails) to force the contacts towards the welds. Adhesive, reassemble the screen, test, bingo!

    • @regisdrevon1554
      @regisdrevon1554 Před rokem +1

      @@kryptonkiller Sorry, my mac runs well and I am not OK to disasemble it for a video only... Bye.

  • @seungyongyi7832
    @seungyongyi7832 Před 3 lety

    a1311 21.5 인치 파트번호는 어떻게 될까요?

    • @better4983
      @better4983  Před 3 lety

      21.5" 모델은 잘 모르겠네요

    • @dgodiex
      @dgodiex Před 3 lety

      @@better4983 HI after an ssd upgrade on a late 2015 5k imac, I got backlight bleeding. Do you think is there any fix?

  • @DontFuckWitDreDay
    @DontFuckWitDreDay Před rokem

    WaSTE OF TIME. THIS WAS AN OLD ASS IMAC FROM 2010.

  • @gamotech2557
    @gamotech2557 Před 3 lety

    dude instead spending money on a great mic jus lil, spend time to make a helpful video but anyway thx for nothings that i learned from this video