HomeIn this guide I will explain how to disassemble the display panel and remove LCD screen with inverter board from a HP Pavilion dv9000 series laptop. Do not disassemble your laptop if it’s still under warranty.
You’ll find instructions for removing hard drive, memory, wireless card and keyboard in my previous post.
Are you looking for spare display parts for your Pavilion dv9000 laptop? Search here.
HP offers free repair for some out of warranty Pavilion dv9000 laptops.
LCD screen and inverter board removal instructions.
First, remove the battery. There are five screw seals located on the LCD screen bezel. Remove all five seals with a sharp object. Remove all five screws found under the seals.
Now we are going to remove the LCD screen bezel. Insert your fingers between the bezel and LCD screen and carefully disengage plastic latches.
Continue removing the bezel.
LCD sceen bezel has been removed.
You’ll find the inverter board under the screen. Carefully unplug cables from both sides of the inverter board. Remove the screen inverter and replace with a new one if needed.
NOTE: some HP Pavilion dv9000 laptops come with dual backlight and require a dual inverter board. Instead of one connector on the right side (as it shown on the picture above), the dual inverter has two connectors.
In the official service manual for HP Pavilion dv9000 I found the following part numbers:
Display inverters:
For use with Dual Lamp display panels 432959-001
For use with Single Lamp display panels 431391-001
Remove three screws from each side of the screen. These screws securing the screen hinges to the cover.
Now you can access the back side of the screen. Carefully remove sticky tape securing the video cable. Unplug the video cable from the screen.
Remove two screws from each side of the LCD screen. These screws securing the screen to the hinges.
Remove the screen and replace it with a new one if needed.
Note: some HP Pavilion dv9000 laptops come with dual backlight LCD screens. On the picture above the single backlight lamp LCD is displayed.
The dual backlight LCD has two backlight cables.
In the official service manual for HP Pavilion dv9000 I found the following part numbers for LCD screens:
Display panels:
17.0-inch, WXGA+, TFT Dual Lamp display panel with BrightView 432954-001
17.0-inch, SXGA+, TFT Single Lamp display panel with BrightView 432953-001
17.0-inch, WXGA+, TFT Single Lamp display panel with BrightView 432952-001
LCD screen, bezel and inverter have been removed.
This model has a known issue – broken left hinge. In the next post I explain how to remove and replace the broken left hinge.
If your HP Pavilion dv9000 notebook has no video at all, it could be related to the video chip failure on the motherboard. Take a look at this video tutorial explaining how to fix failed video chip in HP Pavilion dv9000.
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December 31st, 2009 at 3:17 pm
i dont know what u mean by memory module. Is that the RAM or the HDrive? why would the memory be a problem, looked like a graphical video card error.
December 31st, 2009 at 3:15 pm
Well, i was on the internet the other day and all of a sudden color’s on the screen started to change from purple to green, then i got a blank black screen. Tried restarting and the screen re appeared however i can hear the PC start up normally in the back. I restarted roughly 3-4 times and i was able to see a dim image of Microsoft Windows Vista loading in the back but after 1.2 seconds it turned back to greyish lines dots, and black screen again
December 30th, 2009 at 9:48 am
jajaja,
There is no simple answer. Does your laptop start at all? Can you get image on the external monitor?
If the laptop turns on and makes normal noise, but there is no image on external and internal screens, check the memory module first. One of the memory modules could be bad. Try removing memory one by one. Test the laptop with only one memory module installed.
December 30th, 2009 at 9:25 am
Mat,
According to the service manual for HP Pavilion dv9000 notebooks, some LCD screens come with dual backlight lamp. Chapter 5.14 here: http://h10032.www1.hp.com/ctg/Manual/c01311536.pdf
The backlight lamp is mounted INSIDE the LCD screen and it’s very hard to remove and replace the faulty lamp. If you’ve never done it before, I would suggest replacing the whole screen.
From your description is sounds like the screen has to be replaced.
December 30th, 2009 at 6:55 am
Dearest Laptop Tech:
Are there two separate lights on Pavillion 9000 ?
The left side of the screen is darker on mine, but the right side is well lit.
are the lights replaceable or is a whole new screen needed?
Thanks
December 29th, 2009 at 12:10 pm
The Irony is that i bought my laptop for 900 dollars about 1.2 years ago, and problem occured right after HP warranty expired!!!!!!!
December 29th, 2009 at 12:08 pm
how do u fix the blank black screen?
December 26th, 2009 at 12:16 pm
I just wanted all of you to know, I just had to replace my 17 inch screen on my hp and they wanted almost 500$ for it. I went to screentekinc.com and with the no glare upgrade and COD delivery was $186. I love it and it came with instructions. good luck.
December 26th, 2009 at 10:25 am
Hey.
i’ve got a Toshiba satellite 4225 and the laptops’ display works for less than one second when i turn it on.Is there some lose connection or anything that i will be able to fix??
December 25th, 2009 at 12:20 am
My Laptop is a: HP DV9894CA TL-68
AMD Turion X2-Dualcore 2.1Ghz, Windows Vista 64bit, Geforce 8400M GS, 17inch Widescreen, 4GB Ram, 325gb Hard drive, bought it for 899.99 plus 3 year warranty from future shop.
I cant believe that HP sux at laptops, i guess i should have done more homework before buying a laptop. next time i will go for mac…this is totally oblivious.
I bought it 1.2 years ago, so warranty expired by manufacturer. thats 1 year and 2 months and im having problems already.
December 25th, 2009 at 12:15 am
Hi everyone, i seem to have a problem with my laptop… I was playing World of Warcraft last night and all of a sudden while playing, the colors of the game changed purple greenish, and 2 minutes later, the screen turned black, i manually shut the computer down and restarted it, this time there was no image appearing on the screen, but only a faded black image dimm image of the loading screen of windows vista, but that only lasted 2 seconds, then it went back to the black screen. Everytime i restart my laptop, the screen appears to work for like 1.5 seconds, then it dims back to grey then black. I also see grey lines, dots, greyish black everywhere,. Anyone know what this could be?
December 21st, 2009 at 5:05 pm
Thanks for the response. I’ll give it a try.
December 21st, 2009 at 4:36 pm
Ranger W,
1. Try reseating the video cable connectors on the back of the LCD screen and motherboard. Maybe one of the connectors got loose.
2. If reseating the cable doesn’t help, most likely you’ll have to replace the LCD screen.
December 21st, 2009 at 1:56 pm
dingledinglepop,
There are many different suppliers on the Internet. Just search by the screen part number or laptop model name. Where to get it? It’s up to you.
December 20th, 2009 at 11:27 pm
drear laptop tech i was wondering where do i get a replacement screen for my hp pavilion
dv 9000 17″wide screen
December 14th, 2009 at 3:46 am
Howdy. I’m having a display issue with my GF’s Presario R3000(intel).
The computer posts and boots windows XP fine with no unexpected shutdowns. When the problem is occuring, it is present at all stages of operation (POST, BIOS screen, windows, safe mode, startup and shutdown).
The problem is this: white colors are replaced with cyan and black areas are partially replaced with diagonal red static patterns. Other colors seem to be affected as well, but are harder to pin down. The cyan/white replacement shows blockiness where white is supposed to be shading into another color.
Tilting and jiggling the monitor has sometimes fixed the problem entirely, and always appears to affect the red/black static. A secondary monitor runs without problems, and sometimes just plugging it in fixes the laptop’s display.
The computer was dropped 2 feet onto carpet while open and running recently, and according to my GF has been dropped in the past. There is no visible damage to the screen or case.
Any ideas what this would be? I’m hoping it’s a problem with the cable to the LCD.
December 12th, 2009 at 5:58 pm
Hello,
I have a DV9000 series laptop with screen issues, which I believe is caused from the inverter. The first time, I had my laptop screen replaced by HP (they said they replaced the inverter) but I got a whole new screen. Now a little over a year later, i am getting the same problem. Its been flickering over the past few weeks and going completely black over the past few days. Sometimes it works when i reboot, sometimes it doesn’t. It still turns on (I can see my mouse move with a flashlight held to it).
I called HP and they want to charge 400 bucks for a replacement and 45 bucks for diagnostics (ca-chink ca-chink). The HP guy said inverters have a few year life span, and said it is very rare to get one bad inverter (yet alone two). Do you have any advice what else the problem could be? Is something loose or am I just unlucky?
Thanks in advance!
December 9th, 2009 at 3:08 pm
This is an update to my post directly below, the back light just shut off on me without draining the battery. I plugged it back in and it’ll work for a while. Any help is greatly appreciated, Thanks -Ryan
December 9th, 2009 at 2:02 pm
Dear Laptop Tech,
I recently replaced my inverter board (Ref. Post #145) as you suggested. The inverter board does work and keeps the backlight on. I am having a pretty big issue though, my battery barely holds a charge and when I transport my laptop, the back light no longer works. It does work again when I unplug the inverter board and plug it back in. Basically it seems to work fine unless the computer’s power is completely drained and attempted to turn on again.
I was curious if you had any suggestions or helpful information. I’d also like to note that when connected to an external monitor, the screen goes black every now and then for short periods of time, sometimes over and over for a minute or so.
December 4th, 2009 at 11:10 pm
HP is horrible when it comes to the extended warranty on labtops that are discovered to be defective or lemons after being released on the market. You’d think they do some dogfooding before releasing these lemons.
I called them to see if they would repair/replace my system board for free because my DV9000 was getting a dead display screen on boot and they told me the warranty that had extended because of that known issue had expired 3 months ago. F@%$ing sucks.
November 29th, 2009 at 12:55 pm
Courtney,
You’ll have to test the laptop with video output on the external monitor.
If video on the external monitor works fine and the problem appears only on the laptop screen, most likely it’s either bad video cable or LCD screen failure.
From your description I think it’s related to the video cable but not sure 100%. I would try replacing the video cable first and if it doesn’t help, move to the LCD.
I assume that the guy who “fixed” your laptop tried reseating the video cable connector on the motherboard. If not, try it. It’s possible the video cable is not making good connection with the motherboard.
November 28th, 2009 at 3:06 pm
Well i have a HP Pavilion dv1000 and for about 6 months now (way past warranty) ive been dealing with colors showing up all over the screen. My situation is very similar to Indy B’s. I also see pink and green but more in fuzzy dots all over. I also see a light blue and red. The light blue shows up where the color is lighter and red is the opposite. I went to get it fixed but the guy only fixed it so when i have it sitting on a flat surface and do not move the screen, does it stay normal. Luckily i only payed 35$. I have no idea why my computer does this or how to fix it completely this time.
November 21st, 2009 at 7:49 pm
I just had an experience that makes me believe they are designing them to fail. The LCD screen on my HP Presario C700 became intermittent. I opened it all up and found that there was a small circuit board at the bottom of the screen that had exposed terminals right next to a grounding plate. If they touched, the screen lost backlight power. The only solution was to reboot. There was a small, soft buffer to keep these two parts separate, and it that got compressed, the short would happen. Now here’s the weird thing. The grounding plate that creates the short is INTENTIONALLY there. It seems to have no other purpose than to be in close proximity to the charged circuit board. If you wanted to design something that would go out in a few years of use (but beyond the warranty policy), this would be a good way to design it!
November 16th, 2009 at 12:44 pm
Dear Laptop Tech,
Thank you very much for your helpful response and for the great tutorials on your site.
As you suspected the problem appears to be a faulty video cable, the video cable has been damaged where the laptop hinges. I have a replacement cable on order and after re assembling the laptop (with the cable in a slightly different position) my problem appears to be temporarily solved.
Although I will be glad once my new cable has arrived and is in place!
Thanks again,
Lloyd
November 7th, 2009 at 6:18 pm
Lloyd,
If the laptop works fine with an external monitor, most likely the motherboard/video card is good.
You said the screen works fine at certain angles and most likely this is somehow related to the video cable.
1. The cable could be loose on one end. Try reconnecting the cable on both ends. Reconnect the cable on the motherboard and back of the LCD screen.
2. Could be defective cable. Try replacing it with a new one.
3. There is a chance of bad LCD screen.
This failure is not related to the inverter board. The screen is still bright, so the inverter and backlight lamp work properly.
November 7th, 2009 at 6:14 pm
Robert,
Can you still see a very faint image on the screen when it goes black? Look very closely.
November 7th, 2009 at 10:23 am
I have a hp Pavilion DV9605ea (dv9000) laptop about 6 months out of warranty. At certain angles I get green pixelation/fuzziness, but In a more close position the screen displays perfectly. The distorted image appears to effect video files and images most. Otherwise the laptop functions normally.
I have tried with another LCD screen, the second lcd screen displays fine until I boot into my operating system (Ubuntu 9.10) at which point the second lcd screen loses its signal. I suspect that my os, Ubuntu is not set up to support a second display.
Any ideas if this may be related to inverter or something more serious?
P.S. Thanks for the great site – your instructions on dismantling the DV9000 are extremely useful.
November 7th, 2009 at 10:18 am
I have an HP Pavillion DV9408CA, the screen goes black and occassionally it comes back. Implies lose connection someplace. What would be my best route of action to resolve the off-warranty issue? Rather not plug in to a monitor as this ends the portability. Your assistance is greatly appreciated. My repair experience is limited to desktops but still knowledgable enough. Thank you
November 2nd, 2009 at 3:39 pm
cindy,
Did you replace just the LCD screen or the entire display assembly (LCD, inverter, cables, plastic parts…)?
If you replaced just the LCD screen but still no backlight, most likely it’s a bad inverter.
I don’t know what this error means.
November 2nd, 2009 at 3:36 pm
Ryan,
You are welcome! That’s why you replace the inverter first. It’s not a difficult repair and there is a good chance to fix the problem.