Mid 2007 Backlight/LCD Vertical Stripes

Discussion in 'MacBook Pro' started by Yugami, Nov 17, 2012.

  1. Yugami macrumors newbie

    Joined:
    Aug 2, 2012
    #1
    Been suffering from "vertical stripes"/"stage lights", whatever you wanna call it, as in this post:

    http://www.ifixit.com/Answers/View/...s+a+dark+pattern+on+bottom+edge+of+the+screen

    Also, it seemed to happen to tons of 2008 MBPs but only intermittently and could be solved by a sleep or a restart:

    http://support.apple.com/kb/TS1258
    http://forums.macrumors.com/showthread.php?t=501850
    https://discussions.apple.com/thread/1423301?start=0&tstart=0

    Sadly my issue does not appear to be as widespread as the one that happened soon after people purchased their 2008 MBPs. Mine is a mid 2007 model that has worked perfectly until 5 years later. When the problem first occurred it was solvable by the similar tactic of putting the display to sleep, but quickly returned and soon become permanent. I also occasionally heard a buzzing/hissing sound coming from my display, near the bottom, when first turning on my display for a while, which was remedied by modifying the brightness level. After a while it ceased making this sound altogether.

    Even though my symptoms have indeed been nearest to the first link I posted, I was stubborn and convinced that the display driver aka inverter (P/N 820-2142-A) was the culprit of my problem (the guy in the first link also tried this without success) and purchased it for $12 off ebay. Replacement of the part has done nothing of notice, even after pram and power resets.

    Only a year ago I've invested in a new charger (the original one was flawed but I threw it away so Apple would not replace it) as well as a new battery for a total of $200, and I've also upgraded to 6 gigs of memory, so it is very saddening to have to deal with this problem. I'm guessing as with the guy in the original post I simply need to replace my LCD, but I was hoping to not have to spend $130 for that. I just wish I knew what the root cause of this problem is.

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    Oh, one other part of the story I forgot to mention: when I first encountered this issue I was actually sitting in my car, plugged into an inverter with my full power cord, which was plugged into the cigarette lighter. My fuse actually blew for the cigarette lighter basically when this issue happened. I thought my inverter busted, but figured it was the fuse after plugging in my Verizon car charger. Could this fuse power inversion chain be related to my issue? It's partly why I suspected my inverter was the problem...
     
  2. ThirteenXIII macrumors 6502a

    Joined:
    Mar 8, 2008
    #2
    unlikely was it the fuse shorting out the lcd.

    it looks like it could be a LCD and/or Inverter issue. I've seen backlight inverters solve problems more often then not. but what ive seen causing this issue is the display panel itself and inverter board go out.
     

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