Question about Compaq Presario 900 /1500 Series EVO n1015v 15. inch LCD Display -285520-001 (285520001) CD-ROM Drive

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Power My Compaq laptop won't switch on. When I push the power switch, it won't boot up. When I plug it in, 3 lights light up, the power light, battery charging light and the power supply light. When I unplug it, only the power switch shows. It still emits a faint hum. This has happened before but usually last only a few hours. It's hasn't turned on for a week now and I'm really worried. Please help me.

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Re: Power

It worked for me ty very much [ ben [[ ,,,,,,,,,,

Posted on Sep 06, 2009

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Re: Power

Try this:

With the AC adapter and battery installed and it will not power up remove the adapter and the battery. Then plug in the
AC adapter after both have been removed for 30 seconds and let the laptop set for 30 seconds and then unplug the AC adapter and then slide in the batter within 15 seconds and try to start the laptop.

Posted on Jan 20, 2008

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HP Pavilion Laptop zv5000 wont power on. NOT power cord problem.

I think your motherboard has gone bad, even though you hear a fan working, its just on a hot wire on the motherboard.

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Follow the steps below to determine whether the problem is related to the AC adapter or your notebook system board:
  1. Remove the battery and disconnect all external devices from the computer.
  2. Hold the Power button for several seconds, with all power sources removed. This drains residual power from the system, and may correct many problems.
  3. Connect the AC adapter to a wall outlet and plug the other end into the computer.
  4. Press the Power button .
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****If notebook power indicator light (LED) is on, the AC adapter is working correctly***
If the power indicator LED is off, the AC power adapter may need to be replaced. To determine if the AC power adapter needs to be replaced follow the steps below:
  1. Ensure that the AC adapter is plugged directly into a known working wall outlet.
    NOTE: To check the wall outlet, plug in a different known working device like a light, radio etc.
  2. Check all of the following connections:
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    • The connection into the power adapter from the wall outlet.
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  3. Press the power button again to test the notebook PC.
  4. If the power indicator does not turn on, remove the AC power adapter from the notebook PC and re-insert the battery. Then press the power button. If the power indicator light still does not turn on, then the AC Adapter needs to be replaced.
*****Reseating the RAM may resolve this issue.****
Step 1 - Remove the battery
  1. Slide and hold the battery release latch to the unlock position.
  2. Use your finger to lift the battery up and out.
Step 2 - Remove the memory module
  1. Locate the memory module cover on the bottom of the notebook.
  2. Remove the screw that covers the memory module.
  3. Use your finger or a flat head screw driver to lift the inside edge of the memory module and remove it.
  4. Push both tabs outward simultaneously to release the memory module.
  5. Grasp the memory module by the edges and pull gently to remove it.
  6. After removing one module, replace the memory expansion cover and then replace the screw.
Step 3 - Replace the battery
  1. Insert the battery into the notebook.
  2. Push the battery into the base enclosure until you hear a click.
  3. Connect the AC adapter and turn on the notebook.
fter the memory is reseated, connect the AC adapter and turn on the notebook. If the notebook boots normally and the Windows desktop appears no further action is needed. If this problem re-occurs often, contact an HP Support Specialist to schedule a repair.

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Even when you eventually gain access to the offending part, you will need to be competent in using a soldering iron to remove the jack without damaging the printed board, then clear the holes so the new jack can be fitted.

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Most laptops have a video connector that you can use to connect you laptop to an external monitor. connect an external monitor to your laptop and see if anythig comes up on the external monitor.Your laptop has a key to switch between it's own screen and the external monitor.When you use the external monitor ,you'll have to use this key to switch to the monitor.Your battery should'nt matter if the laptop is running on AC.Let me know what happens and we'll go from there.

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Power will not turn on??

Try this:
1. unplugging the power cable
2. removing the battery
3. plug in power cable
4. switch on and start up

If this works, shut down, unplug and replace the battery.

Hopefully your problem is resolved.
John (Computer Tuition, Blackpool)

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