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    Acer 4315 need a bit of help

    Discussion in 'Hardware Components and Aftermarket Upgrades' started by naton, Apr 10, 2009.

  1. naton

    naton Notebook Virtuoso

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    Hi

    When I got this Acer 4315 laptop two weeks ago it switches ON, the fun turns ON too but no thing was displaying on the LCD or on an external screen.

    I used the crisis bios recovery procedure. Now the laptop boots fine into the bios :) but doesn't display anything to the internal screen. It displays to an external screen but not the internal one.

    I know that this laptop LCD if fine as I tested it on my own laptop (Gateway MX3101).

    Questions:
    1- Do you think that this Acer mobo is faulty? or is it a problem related to the display cable?
    2- Is there a way to find out if the problem is relatred to the display cable?

    Thanks
     
    naton, Apr 10, 2009
    #1
  2. K-TRON

    K-TRON Hi, I'm Jimmy Diesel ^_^

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    naton, try reconnecting the LCD cables. From experience on my D900K, one time green pixels / artifacts started appearing all over my screen. The problem was caused by two of the 30 or so LCD wires to become loose in the boot of the LCD connector on the motherboard. I used the plastic end of a pen cap to push all of the wires in place. afterwards the pixels went away.
    I mentioned my case because if this happened to one of the power leads among the video leads your inverter may not be getting power. So try physically pushing each of the wires in, or try reconnecting all of the cables.

    You can also check the inverter on your LCD with a voltmeter. If the LCD is powering up in another laptop with the same inverter, you know the inverter is working. However try checking the voltage of the inverter in your Acer. If nothing is getting into it than the problem is somewhere between a connection issue or a problematic motherboard.

    K-TRON
     
    K-TRON, Apr 11, 2009
    #2
  3. naton

    naton Notebook Virtuoso

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    Could you develop more please. To test an inverter with a voltmeter; are the following steps OK:
    1- connect inveter to dispaly cable but not to the LCD
    2- switch laptop ON
    3- test the inverter by connecting the voltmeter probes to where the inverter should connect to the screen.

    Thanks
     
    naton, Apr 13, 2009
    #3
  4. stevezachtech

    stevezachtech Notebook Evangelist

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    My big brother's laptop had the same symptoms with the pixel glitches and then suddenly displaying nothing even with an external monitor... I would try your advice K-tron thank you very much.
     
    stevezachtech, Apr 14, 2009
    #4