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What to Do If The HP Pavilion DV4000 AC Adapter Is Not Working
by Abow Liang
The laptop power cord is plugged but the HP Pavilion DV4000 goes dead? This happens all the time. The very first thing you need to check is the LEDs light of the power cord. Led is normal on power cords to show the status of the part. The HP Pavilion DV4000 AC adapter might be defective if if the LED of the ac adapter is not lit and the cord is firmly seated in both the transformer and the wall outlet.
If that's the case, what to do if the AC Adapter does not work? Here are the steps for you to follow and verify where the problem is. (Please note that this also works for Dell PA-10 AC Adapter and other laptop adapters)
Verify that the AC adapter brick is receiving power. Shut down the laptop and unplug the adapter from the system first and then from the power socket. Wait 5 seconds. Plug the adapter directly into the wall socket, bypassing surge protectors, UPS units, or extension cords. The DV4000 adapter LED should produce a steady green light. If you do not get a green light, try the adapter in another wall outlet in another room or verify that the first outlet works with a lamp or hairdryer. You can also isolate the power problem to a bad adapter by swapping it out with a second HP DV4000 adapter - such as one for use with the port replicator.
If the adapter LED lights, check the computer for bad connections. Examine the system power socket to be sure it does not have any bent, missing, or pushed-in pins. Plug the adapter connector directly into the HP laptop, bypassing surge protectors, extension cords, etc. Be sure that the adapter connector fits tightly into the computer's power socket.
If you have access to another computer like yours, try your adapter on it or its adapter on your computer.
About the Author
LaptopTraveller.com: The #1 destination for online HP Pavilion laptop accessories-- HP DV4000 batteries, ac adapters, power cords, laptop carrying cases for HP notebook and so on.
Green Plug Universal Power Adapter at DEMO '08
Green Plug makes universal power adapters to help do away with the cable chaos found in most businesspeoples' laptop bags, under desks and behind home entertainment systems. The product is demonstrated here at DEMO '08
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