Acer Aspire 5742 no power from dc jack, replaced it, still no power


  1. Huludrock
    Posts : 64
    Windows 7 64 bit, Windows 8 32 bit.....Not too impressed so far
       New #1

    Acer Aspire 5742 no power from dc jack, replaced it, still no power


    I replaced the DC jack on an Acer today with a new one. When the laptop has the battery in the power LED shows a power source(unfortunately the battery is dead). When I remove the battery and plug in the charger to the new DC jack, no LED. Hitting the power button results in a flash from the power button light and power LED for an instant but no POST or boot. I tried different chargers as I have a few universals laying around so that's not it.....What's the problem?
    Last edited by Huludrock; 11 Jun 2014 at 19:36.
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  3. Digital Life
    Posts : 400
    Microsoft Windows 7 Ultimate 32-bit 7601
       New #2

    Maybe not enough power on my acer laptop the charger says the output is 19 volts 3.4 amps and it runs fine without the battery installed, When I dont have the battery installed and the charger pluged in there is no indication that the changer is indeed plugged in and also when I turn it on I usually press the button just a bit longer to turn it on
    Last edited by Digital Life; 11 Jun 2014 at 21:30. Reason: Because I can
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  4. Huludrock
    Posts : 64
    Windows 7 64 bit, Windows 8 32 bit.....Not too impressed so far
    Thread Starter
       New #3

    Yep I thought of that too but my universals are adjustable and I matched the voltage with no result. Gotta be mobo I guess.
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  6. Digital Life
    Posts : 400
    Microsoft Windows 7 Ultimate 32-bit 7601
       New #4

    The voltage is fine but will it supply enough amp's 3 or 4 amps is quite a lot for a universal charger
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  7. Huludrock
    Posts : 64
    Windows 7 64 bit, Windows 8 32 bit.....Not too impressed so far
    Thread Starter
       New #5

    They go high enough for amperage too.
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