Question about HP Compaq nc6220 Notebook

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My HP keeps shouting on & off could it be the power jack ?

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Could be os needs to be repaired
call rajeev 310-462-2604

Posted on May 26, 2010

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I'm sure this is a problem for most. HP Pavilion dv9205us starts up, fan engages, Led's light up, drive attempts small start, but stops and after 15 to 20 seconds shuts down with a 1 second flash...


Hello.

Could be a power issue.

The most common reasons for power issues are the battery, power jack and power adapter/cord.

Power off and remove the battery. If the laptop powers on with just the adapter connected, your battery is faulty.

If you move/wiggle the power adapter at the point where it connects to the laptop, and the power goes off and on, the power jack is the problem.

The power jack is inside the laptop and either needs soldering or replacement. If a power jack problem, it should be addressed by someone knowledgeable.

If no change, the power adapter is probably faulty and needs replacement.

Hope this helps.

Jun 05, 2011 | HP Pavilion dv9205us Notebook

1 Answer

Cannot power up or charge battery. Power supply is working. Does the power receptical commonly break from the motherboard?


DC Jack diagnosis:
1. Test power adapter for output voltage. Bend the power cable in various directions while doing this to be sure that there is no broken conductors in the cable.
2. If power adapter is Ok, connect it & see if the power LED on the laptop will glow when you jiggle the power connector in various directions. If yes, then the DC jack might be loose or damaged, & need to be either re-soldered or replaced.
3. If not, then disassemble the laptop. Remove any components that attach to the laptop's motherboard first (e.g. battery, hard drive, RAM, wireless card, optical drive, ... etc.)
4. Next, remove the keyboard & the LCD screen.
5. Finally, unscrew all screws that hold the upper cover & lower cover together so that you could gain access to the motherboard.
6. Inspect the solder points connecting the DC jack to the motherboard. Make sure that none of them is loose. If any, re-solder them.
7. Inspect the center pin in the DC jack. Make sure that it is not broken or loose. If it is, then you might need to replace the DC jack.
8. When you are done, re-assemble back the laptop.

Oct 03, 2010 | HP Pavilion ze4420us Notebook

1 Answer

My compaq nc4200 HP is plugged in but wont go on


1. Take the battery out of the laptop & try to turn on the laptop using power adapter only. If the computer turns on, then the battery is defective & needs to be replaced.
2. Make sure the power adapter is not defective. Test the output voltage of the power adapter using a voltmeter. Compare the voltmeter reading to the nominal value written on the adapter or the laptop.
3. Make sure the DC jack is not loose or broken. A loose DC jack will need to be re-soldered. A broken one will need to be replaced.
4. If you have another processor which is compatible with your laptop's model, try swapping processors & test to see if the laptop will work.
5. The power button could be bad.
6. The motherboard could be defective & needs to be replaced.

Sep 29, 2010 | HP Compaq nc4200 Notebook

1 Answer

My HP Pavilion dv 1000 won't start when I turn it on. I was told that the problem is the motherboard.


1. Take the battery out of the laptop & try to turn on the laptop using power adapter only. If the computer turns on, then the battery is defective & needs to be replaced.
2. Make sure the power adapter is not defective. Test the output voltage of the power adapter using a voltmeter. Compare the voltmeter reading to the nominal value written on the adapter or the laptop.
3. Make sure the DC jack is not loose or broken. A loose DC jack will need to be re-soldered. A broken one will need to be replaced.
4. If you have another processor which is compatible with your laptop's model, try swapping processors & test to see if the laptop will work
5. The power button could be bad.
6. The motherboard could be defective & needs to be replaced.

Sep 11, 2010 | HP Pavilion dv1000 Notebook

1 Answer

DC Power jack heats up to very hot to touch on HP NX9010 laptop.


The DC jack, where you plug the power adapter cable, might be loose or defective, & needs to be either re-soldered or replaced.
In order to do this, the laptop needs to be disassembled & the motherboard taken out. Also, the motherboard needs to be checked for defective/burned out components in the area near the DC jack. Any defective/burned out components found should be replaced, or you might need to replace the laptop's motherboard altogether.

Sep 09, 2010 | HP NX9010 Notebook

1 Answer

I have a HP dv7-1240us. My power supply went bad. I purchased a new one now my cpu doesnt charge or even power up. Need some help on how to replace the power socket. I have no idea on what else it could...


Was the new one that you purchased from HP? If so, then did the model numbers of the old one match the new one you bought? If the new one isn't an HP power supply, then that could be the reason why it won't charge your battery. Some of the "after market" power supplies will be enough to run the computer, but they aren't all able to charge the battery. It could also be the DC Jack on the motherboard that has gone bad. If you are not familiar with de-soldering a component from a motherboard, then you may want to think twice before attempting it. You will have to get the exact jack that goes to your motherboard, de-solder the old jack, & solder in the new one. Trust me, de-soldering and removing an old jack isn't always as easy as it sounds. You will have to completely disassemble your laptop to do that too, so be sure to keep track of all the little screws and which screws go where. Check out Madhatter Computers on Facebook, or go to the website: www.madhattercomputers.com.

Jul 20, 2010 | HP Pavilion dv7-1240us Notebook

3 Answers

Looking for a repair manual. Power jack appears


This is HP Support, and the Service Manual download page for the Compaq Presario V2000 series Notebook PC's,

http://h10025.www1.hp.com/ewfrf/wc/manualCategory?lc=en&dlc=en&cc=us&lang=en&product=500508&

Left-click on, Compaq Presario V2000 Notebook PC, HP Pavilion dv1000 Notebook PC, HP Compaq nx4800 Notebook PC - Maintenance and Service Guide.

Page 166, or Section 5.20 details System Board (Motherboard) removal.
(Section 5.4 starts on Page 117)

One example of a place to buy another DC Power Jack,

http://www.dcpowerjacks.net/catalog/product_info.php?cPath=3_4&products_id=121

Information that may help you in replacing the jack,

http://www.laptoprepair101.com/laptop/2007/12/06/dc-power-jack-repair-guide/

I do this procedure quite a lot. If you find you need guidance, simply state so in a Comment.

Apr 13, 2010 | HP Compaq Presario V2000 Notebook

1 Answer

Dv6700z power issues.


The power jack on the side of the notebook is either damaged & need to be replaced, or it just needs to be re-soldered to the laptops mainboard.
In either case, the laptop needs to be disassembeled & the jack either re-soldered or replaced.

Nov 10, 2009 | HP Pavilion DV6700Z Notebook

1 Answer

My laptop speaker won't stop buzzing. It began


A buzzing/humm sound could be a earth loop problem. This is caused by connecting amp equipment into different mains power outlets.
Use a power board and connect all your amps and laptop to the one power board.

Nov 08, 2009 | HP Pavilion dv9000z Notebook

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