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HP probook 6550 can not power on

Discussion in 'Help for Laptop/Desktop/Tablet repair' started by nihar1, Nov 5, 2017.

  1. nihar1

    nihar1 New Member

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    i have HP ProBook 6550 laptop but it can not power on

    I test it with other adapter and is the same problem
    please help me
     
  2. Administrator

    Administrator Administrator Staff Member

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    check 19 volt on power jack
    check voltage on P-channel mosfet
    check 3.3 volt on power button
     
    Last edited: Nov 6, 2017
  3. nihar1

    nihar1 New Member

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    the voltage 19 volt are ok

    and the 3.3 volt on power button its ok
     
  4. Administrator

    Administrator Administrator Staff Member

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