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Sony Vaio doesn't power up

Discussion in 'Hardware' started by normoa, May 15, 2008.

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  1. normoa

    normoa Thread Starter

    Joined:
    May 15, 2008
    Messages:
    9
    Hi,

    I'm looking into why my son-in-laws Vaio VGN-FS115Z laptop doesn't power up. Would appreciate any pointers.

    Have done all the obvious (reseated CPU, removed etc memory, run with power supply, checked out HDD elsewhere).

    Symptons are :-


    • Power button works , turns machine on and off.
    • No backlight, no screen, no Bios beeps (even if you remove memory etc)
    • 3 leds (Caps lock / Numlock / Shift lock) all stay on.
    • All chips get warm after a while.
    • No sounds (beeps or otherwise)
    • CPU fan doesn't seem to start up - not sure if it needs the CPU to get really hot first, though.
    Almost as if it's lost a power line, or CPU is dead, but drive, battery, mains, wifi leds all come on and appear to work fine.

    Any pointers gratefully received...

    Cheers,
     
  2. CDATech

    CDATech

    Joined:
    May 1, 2008
    Messages:
    492
    I've seen this on your identical model of laptop during a service for a client. We RMA'd it back to SONY and they ended up replacing the motherboard. At least that's what the cryptic service notes said when it was returned.

    In my own technical opinion though it doesn't look good. When your motherboard doesn't respond at all...it's never a good thing.
     
  3. Rich-M

    Rich-M

    Joined:
    May 3, 2006
    Messages:
    22,443
    That's what I wopuld have said at this point is shot motherboard.
     
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