Compaq Presario R 4000 laptop

Please help - My Compaq Presario 4000 laptop won't power on...with or without the battery AC adapter plugged in. When I push power button, all 3 icons (lightning, on/off and circular tower thing)  on the front of puter all flash orange/red. What does this mean? How do I isolate the problem? How do I tell if it's the laptop and/or/battery and/or AC adapter?

The motherboard has died. An R4000 is about 5 or 6 years old at least and it has had a good life. Parts are inexpensive. 2 of them on eBay for $120 shipped:
http://www.ebay.com/itm/2-Compaq-Presario-R4000-Laptops-w-15-Monitor-1-8-GHz-AMD-Processor-/20074007...

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    press and hold the power button for more than fifteen seconds.
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    press the power button
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    ****Please click on Accept As Solution if a suggestion solves your problem. It helps others facing the same problem to find a solution easily****
    2015 Microsoft MVP - Windows Experience Consumer

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    View Solution.

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    ****Click the White thumb to say thanks****
    ****Please mark Accept As Solution if it solves your problem****
    ****I don't work for HP****
    Microsoft MVP - Windows Experience

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    sid.
    although i am an HP employee i speak for myself and not HP

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    This question was solved.
    View Solution.

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