Question about HP Pavilion ze4300 Notebook

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Won't turn on

Light on front lip would blink a couple times when trying to power up after a couple of attempts, it won't blink anymore. tried another ac adapter, no go.  i've read the comments that say likely  power plug.  is this so?  next steps to confirm?
thanks.

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  • Tom Hamilton Aug 06, 2008

    The yellow light on the front flashes, but when powering, it just flashes all the blue lights briefly but does not come on. If power is held down, it flashes the blue lights about once per second. I tried removing battery (not charging up) and it does the same thing.

  • Tom Hamilton May 11, 2010

    Even with all disconnected, still "pulsing". I noticed an SMD transformer visible with 4 leads (under a heat sink) that looks overheated and is making the noise. Also, the resistance across the filter capacitors is about 11 Ohms. Is this too low?

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Check the 19 volts port at the back.try to wiggle it with a pointed object.if it moves,maybe it's the problem.u.

Posted on Aug 27, 2008

  • 1 more comment 
  • gilbert mangonon Aug 27, 2008

    to tetec,open the lcd.disconnect the power supply of the high voltage module located at the lower part of the lcd.maybe it's 5 wires or 4.and try reboot.u

  • gilbert mangonon Aug 30, 2008

    from where are you?i repaired a unit just like what your describing.and the trouble is just right there.send me a photo.gayugzki@yahoo.com.ph

  • gilbert mangonon Aug 30, 2008

    maybe you just disconnected the white and the pink wires.try disconnect the connectors of the lcd going to the mother board.11 ohms is too low.try to reverse the test probes.if still,use smd rework station to troubleshoot.u

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