HomeIn this guide I explain how to open the display panel and replace the screen inverter board in HP Compaq 8510p and 8510w notebooks. The inverter board located inside the display panel beneath the screen. The inverter board works as a power supply for the LCD backlight lamp. When inverter fails, the LCD screen goes dark. The image is still on the screen but you can barely see it.
By the way, in the previous post I explained how to remove the laptop motherboard.
OK, let’s start taking this unit apart.
STEP 1.
There are two rubber covers in the lower left and right corners of the screen bezel. You can remove these covers with a sharp object.
STEP 2.
Remove two torx screws found under covers. You’ll have to use a T8 torx screwdriver.
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STEP 3.
Insert a piece of soft plastic (I use a guitar pick) between the bezel and LCD screen and slowly move it from left to right to release plastic latches securing the bezel.
STEP 4.
Continue removing the screen bezel with your fingers. Carefully separate bezel from the hinge cover.
STEP 5.
In order to access and replace the inverter board it’s not necessary to remove the bezel. All you have to do is lift up the bottom part of the bezel. You can see the inverter board located under the screen.
STEP 6.
Separate the inverter board from the display cover and unplug cables on both side of the inverter.
STEP 7.
The inverter board has been removed. Now you can replace it with a new one.
According to the HP maintenance and service guide for HP Compaq 8510p and 8510w notebooks, there is only one inverter listed for these models. The part number is 452214-001. Google the part number and you’ll find it.
February 1st, 2009 at 9:50 am
[...] In the next guide I’ll explain how to remove and replace the screen inverter. Before you start, you should turn off the laptop and unplug the power adapter. [...]
September 28th, 2009 at 9:42 am
I have a problem with my hp 8510p identical to the one in this youtube video: http://www.youtube.com/watch?v=L5L1T-YLgWw .
I would be greatful if you can tell me how to fix it.
Thanks
September 28th, 2009 at 9:48 am
iqanime,
Looks like a problem with the LCD screen. Apparently, it has bad solder joint somewhere on the controller board and when you move the screen, you make it work temporarily. Unfortunately, there is not much you can do to fix this problem. You’ll have to replace the LCD screen.
Or you can try the following trick (proceed on your own risk
)
1. Disassemble the display panel so you can access the back side of the LCD screen.
2. Place a piece of pen eraser between the LCD screen controller and display cover, so the eraser always applies some pressure on the back side of LCD screen.
3. Assemble the display.
It might help to fix the problem temporarily but you’ll have to find the right spot for the eraser.
October 23rd, 2009 at 7:42 pm
Hi
I have a quick question,
I had a wxga 1680×1050 screen and it cracked. I purchased the wuga 1920×1200 screen cause i wanted teh upgrade. Now the cable from the screen to the inverter does not fit. it is too short…is there anything i can do? Do i need to buy a separate inverter to go up to 1920×1200? Any help would be appreciated.
Thanks
October 23rd, 2009 at 7:57 pm
Oh here it the part number of the screen i bought:
452209-001
Hopefully i can get it to work on my laptop…
Thanks,
October 25th, 2009 at 3:54 pm
Danny,
I don’t know if you can use this screen in the laptop. Most likely you can keep the inverter, but it looks like you need a new video cable.
October 26th, 2009 at 12:06 pm
Hi Laptop tech,
Hmmm how come this laptop comes with an option for the 1920×1200 screen? Oh also where would i be able to get a video cable for this?
October 27th, 2009 at 8:52 pm
Danny,
I guess you’ll have to read through the maintenance and service guide for your HP laptop and find the part number for the video cable used with 1920×1200 screen. There is a chance that your new screen will work properly if you replace the cable. I’m not sure 100% about that because I haven’t tried it myself.
March 9th, 2011 at 3:04 am
Hi Laptop Tech
I have the same problem with a 8510p and the screen going funny all the time. Bit of pressure and it comes back, then goes again, etc.
I have heard of people putting graphic cards in the oven to fix solder problems, can you do that for a screen, or will the plastic display melt?
March 9th, 2011 at 6:38 pm
Mark,
No, you cannot do that with the screen.
If the screen goes bad, you’ll have to replace it with a new one.
March 10th, 2011 at 7:03 am
Ok….. was afraid that was the answer! Thanks for your reply
March 21st, 2011 at 12:23 pm
Hi Laptop Tech,
thanks for a very useful guide. My brother has a 8510p where the screen is just black. No signal whatsoever. Have tried to connect a external monitor to both VGA and HDMI, but still no picture. Before it went completely black he managed to get a picture every now and then by turning the laptop off, and then on again over and over.
Any ideas? VideoCard? How can I be “sure” what’s wrong?
Thanks for any help.
June 26th, 2011 at 7:30 am
thanks for your useful guide.
my mother has hp compaq nc6120 laptop.
she has a blank-out problem with the screen.
goes someone who will fix it.
took 220$ for the inverter. and after a week the screen competly blanked.
the man doesn”t respond.
but thaks to your guide i was able to locate the problem.
and when i changed the old inverter it worked well.
220$ for 20$ thinks.
she still works hard and need some computer to use.
thanks again
July 6th, 2011 at 9:43 am
So many thanks, I thought I had to buy a NEW screen for my hp computer and I discover screen inverter thing on your website.
Now It works for 10€ !
Great supports !
November 29th, 2011 at 7:47 am
Guys,
I also have a HP Compaq 8510p laptop and I have problems with external displays. I tried to connect several LCD monitors (both wide and not wide screens) I can see the screen for a second than it goes black. This is not a standby mode ‘case the led lights green.
I reinstalled the Catalyst driver with the latest one, nothing changed.
Do you have any idea, could it be a hardware problem?
Thanks!
Bye
Steve
December 1st, 2011 at 4:02 pm
@ Steve,
Tell me more about your problem.
Are you trying to connect to the external monitor because the internal screen failed?
I believe on some HP laptops you can switch to the external monitor only after Windows booted completely.
If your laptop screen doesn’t work, you can try disconnecting the internal screen cable from the motherboard and start it with the external monitor after that.
December 5th, 2011 at 8:20 am
Hi,
The internal screen works fine, but I have an external monitor with better quality. I’m trying to switch after Windows booted completly.
I think it could be some electrical problem as it uses the 3rd power supply with the same laptop, during the times all of them failed to charge the battery. I also have problems turning the laptop on, sometimes it switches on after several presses of the power button.
So I think these problems could be connected to the external display issues, but I have no logs and found nothing in Google.
Any ideas? (besides buy a new one:)
Thank you very much,
Steve
December 6th, 2011 at 11:31 am
@ Steve,
I guess this could be a problem with the VGA port on your laptop.
Unfortunately, the VGA port soldered directly to the motherboard. You can see it on the last picture in this guide:
http://www.insidemylaptop.com/disassemble-hp-compaq-8510p-8510w-notebook-pc/
February 9th, 2012 at 4:07 pm
My 8510p display starts very pink/reddish, gradually gets better, becomes completely normal, and then goes black. Works fine with an external monitor.
Inverter or backlight? How do you tell?
Thanks,
February 10th, 2012 at 12:56 pm
@ G.C.
Sounds more like CCFL lamp failure. I think you’ll have to replace the screen.