Question about HP Pavilion dv9005us Notebook

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My HP Pavilion dv9005us has two issues which I cannot resolve. The wireless device is not even recognized or detected by the computer, and there seems to be an electrical problem where the lighted buttons at the top flicker on and off from time to time, which may also be linked to an issue where the computer will at times refuse to turn on after I press the on button and watch it all light up in response and immediately shut off. Any help with this would be greatly appreciated.

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Sorry to here about your DV9005us start up problems.
1st. It would be good to know any other problems you may have had in the past either related or non related to you current problems..


2nd. Has the unit been dropped ?

3rd. The 6000 - 9000 series units are all pretty much the same as fare as board layout.
The top Led's and connected by a small flat ribbon cable. This cable is a 12 pin piece of junk, which you have two in your unit.
Both are located on the bottom left under keyboard. At that connection point the cables push in and are in most cases a solid connection. However, they connect to the Push button - Led Strip directly above the keyboard and at those two connections, HP uses a clamp or push down connection.

For years I have seen the similar problems with the Led's flashing on the Led strip.
Also, you have said the unit at times does not power on, I would be willing to bet, that is why.

One of the 12 pin cables controls the Power startup button, the other feed display information and touch since controls.

Ok, you must decide if you want to take on the repair yourself, or have it done by a technician ? If you interested in doing this repair yourself, you will need to (A) remove any media from the unit along with the battery.

(B) Remove all of the fallowing parts and keep in a static free, dry place, away from your work and tools.

(C) Remove the two plastic covers underneath, covering the memory and Hard Drive.

(D) Remove the Hard Drive and set in safe place. Remove the memory and do the same.
Note... Just to the right above the memory is the CMOS battery (2 pin) Red and Black leads. Disconnect where connector meets the board.

(E) With the unit on its back and the battery compartment at the top, remove the first row of screws (6) set them aside.

(F) Now, in the battery compartment, you will see (3) silver screws, remove them.
Note... You do not have to remove any other screws at this point on the bottom of the unit.
The remaining screws are for the keyboard, which we will leave in place and the DVD drive.

(G) next you will want to flip unit over and firmly with both hands grasp the Led cover or strip and lift up.
Note... This Led panel is connected in (3) places. 1 and 2 are the ribbon connections, the third (3) is your sound connection (4 pin).

(H) Once the Led panel is loose, stop the Led panel should be able to fold over the keyboard, revealing the (3) connection points.
Note... These connection points are very delicate and easy to break. So be carefully.!!

(I) It may be a little easier if you disconnect the (4) pin sound connection. This will give you a little more run and flexibility.

(J) At this pint you can lift the gray plastic tabs a few mm and re-secure the two flat cables.
Note.... These cables are very easy to damage, so handle with care.
You may want to reseat one at a time, remembering these flat cables need to be completely seated.
After you have reseated connections and reinstalled Black (4pin) connector, fit Led panel back. Note. you will here it snap into place. Hold down the power button for 15-30 seconds. This will clear the CMOS.

(H) Flip unit over, re-install the hard drive and (1) piece of memory.
Install the cover for the Hard drive compartment.
(I) re-connect the CMOS battery.
(J) install (3) silver screws in battery compartment. The remainder of the screws can wait until you have finished.
Install battery.
(K) Flip unit over and connect to power source.
Now this time I want you to touch the Led strip. The strip should bring uo the unit in Quick Play, (unless you have deleted it.??
See if the Led's are still blinking ??
The unit should come into the BIOS screen asking you for the time and date.
Note.... If you can stay in this BIOS screen without shouting down, and the Led's are not blinking, you’ve done it...
After setting the date and time, you may want to power down the unit, flip it over and replace removed screws.

If you are smart, you will run over to HP.com and download and FLASH your BIOS to current date.
Please make sure the unit is working 99% before updating the BIOS. While flashing the BIOS, Do NOT TURN OFF UNIT.

PLEASE LET ME KNOW IF ALL OF THIS WAS JUST A WAIST OF TIME.
Reader, please rate this information, weather you agree or disagree, it lets the technician who is typeing this information,(one key at a time) it was worth the effort.

Hope this information find your computer in good to better health..
John Ray
john@johnrraycomputer.com

Posted on Jun 29, 2009

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