Dropped iBook - Monitor Grey/White Only External Monitor Works

Posted on 2008-11-12
Last Modified: 2013-11-24
I need help fixing the display on my iBook G4 14" 1.42 GHz. The iBook fell off the couch to the floor, a distance of about 2.5 feet. The computer starts up just fine, but the iBook display just shows grey/white. I get full video using an external monitor and the iBook keyboard and track pad work fine according to the external monitor.

I disassemble the laptop and removed the case around the monitor. The hinge is broken on the right side, but there is no other obvious damage.

I am willing to replace whatever parts need replacing, but would like some ideas as to what should be replaced first. This iBook has the combined Airport /Bluetooth card.

Thanks for the help.
Question by:gcgucken
    LVL 32

    Accepted Solution

    A grey/white screen indicates that there is no video signal getting to the screen, but the inverter s getting power to the ccfl backlights. I would suspect that either the cable has dislodged from the LCD controller board on the back of the LCD or that the lcd controller itself is damaged. You should reseat the connectors on both the motherboard and the LCD controller board behind the LCD screen.

    Is the broken hinge near the LCD cable that goes to the LCD. Perhaps the hinge breaking has broken or cut a wire in the cable.

    Author Comment

    Thank you, I will try what you suggest and get back to the message board.

    Author Comment

    I reseated the connector to the LCD controller board behind the LCD screen, but the problem is not resolved. This afternoon I plugged in the video cable to the motherboard, so I did not redo it just now. Can the lcd controller be replaced separately from the lcd itself?


    LVL 32

    Expert Comment

    Not likely as the small connections between the controller and the LCD are usually integrated in a mylex ribbon along the edges of the LCD. The LCD and controller are usually one part.

    Featured Post

    How your wiki can always stay up-to-date

    Quip doubles as a “living” wiki and a project management tool that evolves with your organization. As you finish projects in Quip, the work remains, easily accessible to all team members, new and old.
    - Increase transparency
    - Onboard new hires faster
    - Access from mobile/offline

    Join & Write a Comment

    The purpose of this Apple-hardware based article is to provide helpful information about an important component required of all Apple portable notebooks (Apple does not call them "Laptops" because they are too hot to sit on your lap), but is not o…
    Thanks to luck and dedication (hitting refresh every 5 seconds when the pre-orders were going live at midnight on April 10th) I managed to actually receive an Apple Watch on release day, April 24th. Which means I’ve been using it daily for just ov…
    Need more eyes on your posted question? Go ahead and follow the quick steps in this video to learn how to Request Attention to your question. *Log into your Experts Exchange account *Find the question you want to Request Attention for *Go to the e…
    In this sixth video of the Xpdf series, we discuss and demonstrate the PDFtoPNG utility, which converts a multi-page PDF file to separate color, grayscale, or monochrome PNG files, creating one PNG file for each page in the PDF. It does this via a c…

    730 members asked questions and received personalized solutions in the past 7 days.

    Join the community of 500,000 technology professionals and ask your questions.

    Join & Ask a Question

    Need Help in Real-Time?

    Connect with top rated Experts

    17 Experts available now in Live!

    Get 1:1 Help Now