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My Acer x191w takes 25 minutes to turn on in the morning. It starts to work for a half second then goes black and the power button goes back and for from green to orange. It does this for 25 to 30 mins and then turns on and my desktop is real dim for about a minute or 2 then the screen works fine the rest of the day. Any idea which component is causing this?

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  • sitesetup4u Jan 01, 2011

    Sorry, I forgot to say this is just a monitor for a desktop not a laptop computer.



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Power related issue certainly, sounds as though the charger may be suspect, but I'd need to know if you were running this on battery also.

The dimming of the screen could be down to a faulty backlight, but I have a feeling thet, given the issues you also decribe, that there is a problem with some of the capacitors on the motherboard, which are causing the power fluctuation. This is not good news if it is the case, as it means the motherboard needs to come out and be checked and maybe have new capacitors.

It could also man that there is a damaged or "dry joint" on one of the circuits that provide power to the laptop

Posted on Jan 01, 2011

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  • graeme ian hunter Jan 01, 2011

    Ah! I answered the wrong post....apologies!
    Right in this case I'm fairly confident that the issue is a little similar anyway. The power capacitors that send the voltage through the inverter to the screen have a tendency to fail with age. I think what you are seeing here is a "lazy" capacitor which is not charging up fully, or charging slowly. I would guess that were you to remove the screen back cover, you would find a capacitor that is bulging at the sides or the top

  • sitesetup4u Jan 01, 2011

    Ok thanks for your help. So would I just have to replace the bulging capacitor or is there a set of them that I should replace? Also can I buy the capacitor at radio shack or do I need to get them from a computer store or special order them?

  • graeme ian hunter Jan 01, 2011

    Having had the experience of a capacitor from a studio flash go off in my face, I'd leave this to the experts. I think that you only need replace the one thats bulging, but.. at the very least get a technician to check it out. Rado shack is like Maplins over here ( probably better) so you should get them thsere



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