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    Aspire 5715z

    Discussion in 'Acer' started by Birac, Apr 30, 2009.

  1. Birac

    Birac Newbie

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    Hi,
    I am new in this forum. So HI to everyone :). I want to ask for your help.
    I have one As 5715Z which mb doesn't work. Is there someone who understands the way the notebook mb works and knows what parts are usually broken when the mb is ded? Can someone send me datasheet for the mb?


    Thanks
     
    Birac, Apr 30, 2009
    #1
  2. ayarbee

    ayarbee Notebook Geek

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    Any motherboard repair is generally not performed. It is far more likely that the item would be completely replaced.
    You will struggle to get any kind of detailed schematic for a motherboard.
    As to how they work, this is pretty much the same as any IBM clone based PC. They all work in pretty much the same way be it a notebook, desktop or server.
    A common point of failure for a completely dead mainboard would be the power in. Without this nothing happens, if power applies then the next step is the bios which will attempt to perform a POST and diagnose a lot of potential issues. Between the power and the BIOS is a CMOS battery, which is generally not crucial to power up but is required to persist settings when the computer is off the mains, but it could be a problem if this has become a short circuit.
    BIOS chips a usually easy to spot but on a notebook may well be soldered in, however if it is socketed you could try reseating it, true for any socketed component you might find.
    The CMOS battery might be mounted on the board or connected by wire in a small taped sleeve.
    Assuming the power gets to the bios the POST will run and will generate visual and audible failure codes, this feedback requires a graphics adapter or speaker connection and maybe a monitor/display of some sort.
    Surface mount technology on motherboards is difficult to repair as you can easily short out or overheat the board in trying to replace anything.
    Other than testing the power circuits on the board, testing to see if the POST runs, checking for loose connections there is not much that can easily be done. If a power problem had happened you might be able to locate some evidence of burn or a broken connection that might be repairable. Common power faults are loose, broken or dry, connections, accidentally reversing polarity or short circuits as a result of a foreign body in the chassis.
    Drop impact could also damage the motherboard and this might be difficult to spot.
     
    ayarbee, Apr 30, 2009
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