Question about HP Pavilion dv6000z PC Notebook

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Power led goes on and then goes off.

I have a hp dv6000 when I plug power jack, it's blue led on power jack, goed on and in a one second it is goes off. I measured power input and find that, laptop try to take too much current and adaptor cut off the voltage.
Are there any one to know problem. Which component is critical? or Has a schematic off mother board.

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Some years ago I had a similar issue with an IBM and with that one the capacitor that filters out the current (right after the power jack, usually the very first capacitor that gets the power) was short circuited. It was a ceramical capacitor, at least that's how we call them here.

Posted on Dec 19, 2009


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1 Answer

New DC jack, powers up but no display. Strange power LED behavior.

No Rob, you aren't running out of options. You just haven't diagnosed far enough, because you don't know the path.........hence where I come in.........

Using the HP Pavilion dv6000 series, and Pavilion dv9000 series of Notebook PC's, as an example,

There are two Power MOSFET's being used.
The Fairchild Semiconductor Industries - FDS6679 - Power MOSFET, and the Alpha & Omega Semiconductor LTD - AO4407 Power MOSFET.

Both of these P.MOSFET's are Obsolete. However there are cross reference examples given. Let's look at two of these examples, and also note the cost,
One dollar and one penny - USD
78 cents - USD

Surface mount soldering 101,

For additional questions please post in a Comment.

Apr 22, 2013 | HP Hewlett Packard ALL-IN-ONE-TouchSmart...

1 Answer

HP dv6000 laptop not charging problem, adapter, battery and power jack looks like it works fine

If your battery, charger, and DC Jack are ok, then the most common problem is the surface mount transistors on your HP's main board called MOSFET's. They are small 30V N channel 8 pin components soldered to the main board. The boards also have transistor circuits which switch back and forth between a charging and discharging state. However these rarely ever fail. The MOSFETS fail because of the thermal loads which they must endure. Although some notebooks (like the Gateway I'm currently on) have a DC jack which serves dual purpose of supplying DC 19V AND connecting/disconnecting charging circuit. However your HP dv6K does not.
However it's worth mentioning that these models have had all sorts of problems...most notably poor thermal design to begin with that usually creates solder connection problems with the main chipset especially on AMD models. Good luck.. :)

Mar 27, 2013 | HP Pavilion DV6500T Notebook

1 Answer

HP Pavilion dv8 not starting up

Ya know........Pavilion dv8 is a Series of Notebook PC's.

Encompasses a LOT of models in the series.

Have no idea of which LED in front you are referring to.

Do know;

1) Test the AC adapter (Charger) with an economical multimeter.
Average cost is $5 to $12.
Set to DC Voltage, and check the output voltage of the AC adapter.

As far as I can tell the DV8 series uses 18.5 to 19 Volts. (DC)
Use an AC adapter that is rated at 90 Watts, NOT 65 Watts; if using a replacement AC adapter.

The port on the laptop that the AC adapter plugs into is a DC Power Jack. (DC_IN)
The plug end on the power cable from the AC adapter, and plugs into the DC Power Jack, has a Center Hole, and an outside cylindrical metal shell.

The Center Hole is the Positive connection. This is where the Positive (Red) probe lead of the multimeter goes.
The outside cylindrical metal shell is the Negative connection. This is where the Negative (Black) probe lead of the multimeter touches.

Also have an assistant gently wiggle the power cord TO AC adapter; and power cable FROM AC adapter to laptop.
Intermittent reading indicates a broken wire, or wires.

DC Power Jack LED lights up? Means nothing to me. I want to know the FULL DC Voltage is getting TO the laptop, and there are no breaks in the wires of the power cable, or power cord of AC adapter.

THEN AC adapter checks out.

2) AC adapter checks out?
What condition is the DC Power Jack in?
Battery removed, use the eraser end of a No.2 pencil, and GENTLY see if you can wiggle the Center Pin around.

ANY perceptible movement of the Center Pin, means replacement of the DC Power Jack.
Fortunately for this series the DC Power Jack is connected to a cable with wires, and they end in a plug connector. Which plugs into the motherboard.
It is now a DC Power Harness.

HP calls it a Power Connector Cable.

3) Next in line are the Power MOSFET's, in the power circuit section, on the motherboard.




Should be on the motherboard, near where the Power Connector Cable plugs in.
Rectangular shaped with 8 'legs'. ('Legs' are J-Leads)

Believe one or more to be the problem.
Typed the rest above because it is a power flowchart, and when diagnosing always go through the steps.
Would s-uck to replace a motherboard, when the problem was an AC adapter, it's power cord, or the DC Power Harness.

This is more on the subject, by using the HP pavilion dv6000 series, and Pavilion dv9000 series of Notebook PC's; as examples,

Further this is to show the availability of the Fairchild Semiconductor - FDS6679 - Power MOSFET, and Alpha & Omega Semiconductor - AO4407 - Power MOSFET,

Scroll down.

AO4407 has been phased out. Let's look at one of the cross-reference examples given,

That is correct. $1.01 USD for a FDS6679, and 78 cents for a substitute AO4407.

Also check the MLCC's (They are also SMD. Surface Mount Device)
Multi-Layer Ceramic Capacitor

Here are examples. Not correct values, Capacitance, (MicroFarad's), and Voltage,

Scroll down.

These will be close to the Power MOSFET's.
See if any are burned, or blistered.

HP Support > Pavilion dv8-1100 using for an example > Manuals download page,

Scroll down.
HP Pavilion DV8 Entertainment PC - Maintenance and Service Guide; in blue.

This is a free Service Manual.
Remove ALL Power. Remove the AC adapter, and Battery.
USE an ESD wrist strap, and have it's alligator clip attached to a good ground source.

For additional questions please post in a Comment.


For additional questions please post in a Comment.


Dec 10, 2012 | Computers & Internet

2 Answers

No display

Try this step...

1. Disconnect the AC Adapter.
2. Remove the Battery.
Note : Please see that there are no external devices or cables connected to the Notebook.
3. Hold the Power button down for 30 seconds to 1 minute.
4. Reconnect the AC adapter and do NOT connect the battery now.
5. Turn on the Notebook power.

Still the problem is not solved means it will be a hardware issue, you want to contact HP Customer Care.

Dec 13, 2010 | HP Pavilion dv6000z Notebook

1 Answer

HP Pavilion dv6000 plugged in not charging, I have a new battery.....PLZ Help.

Its the DC charging jack that you plug the charger into on one of the sides of the laptop. Do a google search, go and search for "HP dv6000 DC jack problem charging" (leave out the quotes) and you will see this is a common issue with the dv6000 and laptops in general. Many will just replace the whole laptop motherboard as the DC jack is attached to the board. If you know what you're doing, you change out the jack, quick repair job and keep your own board, but fixed. I would fix it if it were mine. You may be able to find someone local online but if you need someone to do the repair, I'm in the repair directory, as are many others qualified.

Note: It may come to a point, or the situation may just fit better to replace the entire board instead of the port alone. This is usually when the jack is not seated and easily replaceable, or if you are under warranty, HP will replace the whole board.

Mar 08, 2010 | HP Pavilion dv6000 Motherboard

1 Answer

The PC doesn't start. led is not blue when power cord plugged

Below is a link to the service and maintenance guide. This will serve as a reference for disassembly. It is free to use, copy and print. It is in PDF format. I would check the voltage at the tip of the adapter to make sure it is putting out the proper voltage. I have seen plenty if failures with the HP laptops at the DC jack area, in most cases these jacks are connected to the motherboard by a cable and plug, which makes them easier to service than the soldered type. Here is your guide........

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With the power adapter pluggin, the blue LEDD at the power connector interface lights up, but the 3 LED's in the lower LH corner of the body do not light up at all. The laptop is a pavillion dv6500. Also,...

There is a good possibility that the DC jack in the laptop has failed or has become dislodged from the motherboard. I would lean toward a failure of the jack personally. I have replaced countless numbers of these and they are relatively easy to change out, but you have to strip the laptop down to the motherboard. Reguardless of whether the jack is good or not, it will still light up the led that is integrated into its bezel, but the jack itself will not transmit the power to the board. They can be purchased on Ebay for around 20 bucks. Below is a link to the service manual for the DV6000 for disassembly reference.

Jan 12, 2010 | Computers & Internet

1 Answer

Lost password

Faulty Nvidia Chip....Yes, Overheating of the Graphics Chip will result in the dv6000 not powering on..

Though You should check through power to the DC Jack...
Does the DC Jack Show its Blue Connection Light When AC Adapter is plugged in?? If so, then again, you have a failing video/GPU chip.. A reflow to the chip will fix your issue..

Nov 15, 2009 | HP Pavilion dv6000z Notebook

2 Answers

HP pavillon dv6000 boot troubleshooting !

First take out the battery, and run it on AC power alone , if it runs ok its the battery that has died, it you still can run the laptop with orw/o a bttery then the internal power supply has died.

Jul 12, 2009 | HP Pavilion dv6000z PC Notebook

2 Answers

Hp pavilion dv6000

The only internal power for a laptop is the battery. The external power is the AC adapter. (Charger)
If you're asking for the schematics, for the circuitry and component layout of the motherboard, to my knowledge only HP trained authorized technicians, have access to this. In truth, if they have a problem, they just replace the entire motherboard. It's more cost and time effective.

Which leads me to this. The main issue of power problems for a laptop, is the DC Power Jack, right after a failing battery. This is the round port on a laptop, where the AC adapter plugs in. Although replacement of this jack, is no 'Walk in the park', it isn't that tough. However, there aren't that many of we tech's around, who do this anymore. There are just a bunch of 'Parts Changers' out there. Still, from a laptop manufacturers point of view, it may be more time and cost effective, to just replace the motherboard. Less chance of that laptop coming back for the same issue.

I state, that the DC Power Jack is the main source for laptop power failure, right after a failing laptop battery because, the jack receives a lot of accidental abuse. When the AC adapter is plugged in, and the plug of the adapter receives a heavy 'bump', the DC Power Jack can break, or it's solder connections can break, very easily.

This is an enlarged photo of an average DC Power Jack, You can see the 'body' of the jack, is not much larger than the plug that goes into it. The body is also made of plastic.
The thick pin in the center is the Positive connection. The outer metal shell inside, is the Negative connection.

Sometimes the plastic body can break. Sometimes the connection at the end of the center pin, can break. Sometimes the cylindrical metal outer shell, inside the body of the jack, can break.

There is also another issue. In the photo the DC Power Jack is upside down, in relation to how it sits on the motherboard. The flat metal pins that are sticking up, go down through holes in the motherboard, and are soldered to the motherboard, on the backside.
(The flat metal pin in the middle sticking up, goes to the center pin in the jack. One of the flat metal pins on the sides, goes to the metal shell inside the jack. The third flat metal pin on the side, is just soldered to the motherboard, and helps to give strength to hold the jack in place)
Sometimes these solder joints for those pins can be broken. They develop a crack in the solder joint.
In a case like this, just re-soldering the solder joint/s, puts the laptop back in business.

I posted all of this, in case this is the issue you are having.
The following is a link to a Maintenance and Service Guide, for the HP Pavilion dv6000. Don't let the name 'Guide' fool you. This is really an extensive Service Manual.
It tells you, and shows you how to disassemble the entire laptop down to just the bare motherboard in your hand. Also tells you and shows you how to remove and replace all the hardware components inside. It also has all the part numbers. It also has exploded illustrations of the entire laptop.

This is>Manuals, and the page to download the manual I stated above,

Just go down to the blue ->
HP Pavilion dv6000 Notebook PC Maintenance and Service Guide <- , and click on it.
This is a PDF file you download. You have Adobe Reader on your computer. Adobe Reader uses PDF files.
After you copy and paste the link above into your address bar, press the Enter key.
For as much as 30 seconds, you may not see anything happening. The file is downloading, I assure you. The first page may pop-up after ten seconds. IF So, you should see a green Adobe download
bar below to the right. It will show the progress of the download. I suggest you let the file fully download, before you look through it. If you start looking through it before it is fully downloaded, you could break the download connection.

After it has fully downloaded, you can save it to your computer if you wish. This way you can have it to look at, anytime you want. You can also burn it to CD disk.
Just go up to the top headings, and click on the floppy disk icon. It is the second icon from the left.
Hovering your mouse cursor over it will briefly reveal, "Click to save this file to your computer or another location"

(IF you take the laptop apart, remove the battery and the AC adapter first. Also so I suggest using an ESD wrist strap. They are cheap, and help to insure that you relieve your body of Static electricity)

Apr 11, 2009 | HP Pavilion dv6000z Notebook

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