Question about HP ProBook 4730s Notebook

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My notebook does not want to switch on. The battery has been replaced with the original one for it and I replaced the ac adapter. When I plug the ac adapter in it the light just flash twice blue and

I also opened it and cleaned it out. I checked the connection and it was fine. My notebook is only a year old. Just outside the 1 year warranty. Please help me anyone.

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  • HP Expert
  • 427 Answers

Have it checked in service. Do not dismantle again. It could be a defective charger, but also a shortcircuit because you opened it

Posted on Apr 17, 2013

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6ya6ya
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Posted on Jan 02, 2017

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gsage
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SOURCE: Hi. My HP nx7000 Notebook does not switch on at all

If you have warranty get it in for a new m/board ok

Posted on May 09, 2009

Geekman
  • 32281 Answers

SOURCE: HP Pavilion dv9700t battery dead, faint blue flash from plug

Check your mains adapter plug that connects into the laptop power socket with a multi-meter, the voltage should be slightly higher than the voltage that is printed on the label on the bottom of the adapter. If the voltage is zero or way below the voltage that is printed on the label then the power adapter is faulty and needs to be replaced.

If the adapter is OK then connect it to the laptop and power it up, then look at the power/battery charging LED light and wriggle the power plug in the laptop's power socket. If the power/battery LED light flashes and in a certain position this LED light stays firm, then the power socket is either faulty or it has a dry solder joint where it is connected to the motherboard.
This can be repaired but it requires the laptop to be completely dismantled to get at this power socket and repair. I suggest you get a quote first.

Posted on Oct 18, 2009

techman007
  • 1112 Answers

SOURCE: My dv7-1245dx has the same charging problem. Has

Hi:
This is due to a faulty DC to DC converter IC on the laptop mother board, this part is not replaceable, you must replace the mother board as the chip is part of the motherboard.

Posted on Dec 27, 2010

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I have a HP dv7 laptop it does not work with the ac adapter but worked with the battery, whenever it is working with the battery and the ac adapter is connected it shuts down.


Remove the battery and plug the ac adaptor in check wethere the light on the port where you connect the ac adaptor glows or not, if no then check the wethere the ac adaptor is getting warm or not after you plug it in for few minutes if not then ac adaptor has to be replaced.
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Travelmate only powers up with battery inserted. But AC still charges battery. Orange light goes on and of


Sorry to tell you this but you may have a problem with the charging system. That will require you to return it to Acer or an Acer service center. You can also try this. I got this from Acers' travelmate support website:

If the notebook does not power on:

Make sure the ac adapter is correctly plugged into the notebook and into the power cord.

If everything is plugged in correctly and it still will not power on, follow these steps to complete a ‘power reset' of the notebook.
  1. Unplug the ac adapter. Keep ac adapter unplugged.
  2. Remove the battery and keep the battery unplugged.
  3. Hold the power button down for 15-20 seconds. (Nothing will appear on the display and none of the lights will light up.)
  4. Release the power button and plug in the ac adapter ONLY. (Please note that a power indicator light should be lit on the ac adapter when it is plugged in).
  5. Normally power on the notebook.
  6. If the unit does not power on, remove the ac adapter and insert the battery into the system.
  7. Plug the ac adapter back into the system, the battery charging indicator light will light up.
    If the battery charging indicator light does not light up, the ac adapter may not be providing proper power to the unit, and may need to be replaced.
You can aslo google your specific model of Travelmate to see if others are having this issue.
Les

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I had the same problem but what you can do is...

Make sure the ac adapter is correctly plugged into the notebook and into the power cord.

If everything is plugged in correctly and it still will not power on, follow these steps to complete a ‘power reset' of the notebook.
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