Resolved 27" iMac half dim. LCD or inverter? UPDATE: SOLVED WITH PICTURE TUTORIAL!

Discussion in 'iMac' started by h4lp m3, Jul 13, 2015.

  1. h4lp m3 macrumors 6502

    Joined:
    Jun 29, 2011
    Location:
    New Orleans
    #1
    Half of my screen is dim on my 27" iMac A1312 and I want to know if it's the LCD or the inverter or something else. IMG_6096.JPG IMG_6096.JPG
     

    Attached Files:

  2. rkaufmann87 macrumors 68000

    rkaufmann87

    Joined:
    Dec 17, 2009
    Location:
    Folsom, CA
    #2

    Likely the LCD, take it in to be professionally diagnosed if you still aren't sure.
     
  3. h4lp m3 thread starter macrumors 6502

    Joined:
    Jun 29, 2011
    Location:
    New Orleans
    #3
    Why? I can order LCD on ebay for $150 and install it with help of iFixit guide. If that doesn't work, send it back and buy inverter. If I wanted to go to a pro, I wouldn't have asked here.
     
  4. rkaufmann87 macrumors 68000

    rkaufmann87

    Joined:
    Dec 17, 2009
    Location:
    Folsom, CA
    #4
    Sorry, had my mind reading license not just expired I would have known why you posted here.

    Good luck.
     
  5. h4lp m3 thread starter macrumors 6502

    Joined:
    Jun 29, 2011
    Location:
    New Orleans
    #5
    UPDATE: Once again i have pwn3d the genius bar and the n00bs at MR, and proved the world wronk...

    Because I am a cheap bastard and didn't want to shell out $150 for a new screen, I removed the LCD to see what was going on an what (if anything) I could do.

    The one thing that caught my eye was the 4 large screws on the back of the panel. Knowing that I had nothing to lose and everything to gain, I removed those screws and both the black and silver metal tape allowing me to lift up the metal cover.

    IMG_6145.jpg


    Underneath the metal cover, lies the LCD's logic board or as it is commonly called by TV repair PROFESSIONALS the "T-Con board". It's super easy to remove and it held on with two little alligator clips. Simply lift them up and slide it out.
    IMG_6142.jpg


    Part numbers on this board are:

    LM27WQ1-SDA2
    6870C-0301A_EVT2_Rev1.0
    E88441
    AB508D
    197483
    IMG_6147.jpg


    Because I couldn't find one for sale anywhere in the US, I purchased a cracked 27"-iMac on eBay for $45 and swapped the boards out.


    IMG_6141.jpg


    Replaced the panel and boom. No more dimness and I can watch HD pr0n again.
     

    Attached Files:

  6. steve23094 macrumors 68000

    steve23094

    Joined:
    Apr 23, 2013
    #6
    Looks like you forgot to put your glass back in.
     
  7. h4lp m3 thread starter macrumors 6502

    Joined:
    Jun 29, 2011
    Location:
    New Orleans
    #7
    Whoops, that totally slipped my mind. All better now.
     

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