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 10th, 2012 at 12:56 pm
@ G.C.
Sounds more like CCFL lamp failure. I think you’ll have to replace the screen.
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,
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/
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 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.
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
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 !
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
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.
March 10th, 2011 at 7:03 am
Ok….. was afraid that was the answer! Thanks for your reply