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Sony VAIO PCG-Z505LE laptop power problems

Discussion in 'Electronic Repair' started by Sam Goldwasser, Oct 9, 2004.

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  1. Someone gave me a Sony VAIO which plays totally dead with either the power
    adapter (tested good using DMM and on another identical laptop) or charged
    battery. By "totally dead" I mean absolutely no indication that power is
    getting beyond the DC socket or battery terminals - not even a momentary
    flash of any LEDs.

    I'm told that the laptop just died suddenly while in use.

    I've removed everything that will unplug from the mainboard without
    any change.

    The single fuse I could locate (near the DC input) tests fine.

    I doubt it's worth the cost of a new mainboard but any other
    suggestions other than "replace that piece of junk" appreciated. :)

    Thanks.

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  2. Andre

    Andre Guest

    I once had the opposite problem on a Compaq Presario, where the power
    supply was "tripping" when connected to mainboard.

    I'd check to see how far the power gets to the various chips, you will
    likely find that it is a SMPS startup problem.

    Yours,
    _A
     
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