Pavilion dv9843cl backlight died

The backlight on the screen of my Pavilion dv9843cl 17" laptop died. I can see the shadow of characters on the screen as I type, so I know the liquid crystal part of the display still works and attaching an external monitor to the laptop works just fine. I would like to know what I can do to get the backlight working again. Is there a component I can replace? If so, what is the HP Part #? Cost would be helpful as well. Are there published instructions on how to get to that component inside the machine? I am pretty handy with electronics -- I used to build HeathKits and, much later, desktops....
Regards, Mikey

Older notebooks had a CCFL backlight that worked off an Inverter board.
3 things could be faulty here, Backlght itself, Inverter board or the cable that goes from the system board to the LCD panel.
I don't think it would be very expensive to fix it but since your PC is quite an old model, I can't say.
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The opinions expressed here are my personal opinions, not of HP.
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Hello @pavilion231,
Welcome to the HP Forums, I hope you enjoy your experience! To help you get the most out of the HP Forums I would like to direct your attention to the HP Forums Guide First Time Here? Learn How to Post and More.
I have read your post on how your desktop computer is not able to display an image on the screen, and I would be happy to assist you in this matter!
To correct this issue, I recommend following the steps in this document on Screen is Blank after Starting the Computer. This should help to display the video from your computer onto the screen.
If the issue persists, please call our technical support at 800-474-6836. If you live outside the US/Canada Region, please click the link below to get the support number for your region.
http://www8.hp.com/us/en/contact-hp/ww-phone-assist.html
I hope this helps!
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Please click “Accept as Solution ” if you feel my post solved your issue, it will help others find the solution.
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Backlight dying?

Hi guys. I have a white macbook about 2 and a half years old. I think my backlight has gone out. If I take my brightness setting down to the very lowest and then up one I can get my screen to flash on. Sometimes for a few minutes. Do I need a new backlight? Or is it the inverter or inverter cable? How can I tell the difference. I'm a poor college student and I don't have hardly any money so any cheap fix would be much appreciated. Thanks!

Hi Dinotorrid,
Welcome to Apple Discussions
You may want to try going to System Preferences > Energy Saver > Settings For _ (Battery or Power Adapter from the popup menu) > Take each slider and put them all the way to the left > Uncheck Put the hard disk(s) to sleep when possible. If that works, then go back and change one setting at a time to see what was causing the problem.
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There are several IFs in this issue. I'm like you. If it is not under warranty, I am going to try something on my own. You can go to this link and put in your Product Number (not the model number) and see if the backlight, or its associated parts are available and what it might cost you to repair it.
http://partsurfer.hp.com/WSearch.aspx?Wchar=Y&searchText=dv9700
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HP Pavilion laptop backlight problems?

Dear All
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Good work Katii.
http://www.youtube.com/watch?v=cLdaADd2G0M
AND
http://h30434.www3.hp.com/t5/Other-Notebook-PC-Questions/Repair/td-p/2714189
REO
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Hi,
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Make it easier for other people to find solutions by marking a Reply 'Accept as Solution' if it solves your problem.

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Hi, Im the owner of a 20" iMac, bought in late 2007. The backlight had recently broken. I'm looking for any advice on what I should do. It's out of warrenty.
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Hello everyone.
Im on the computer of my aunt and uncle and it has a problem : the screen is dark , but not dead. I mean, I can still see things but very lightly.
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> Do toshiba sell pieces to some reseller or do they make everyone go to them topay full price? ( ifan inverter is around 50, 200 e seems to be quite a lot ... )
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Hello,
My t400's backlight died not too long ago... pinkish hue before it completely cut out is a dead give away right?
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Thanks for your reply, those fuses fixed it.
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Hi everyone
On my lenovo t400, the screen is black but with enough light you can see the display.
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If I buy an LCD inverter board nd swap it and it doesnt work, its most likely the motherboard ?
richk wrote:
It has been my experience that the cable is the least likely thing to fail, so I would try that last. If you have a CCFL backlight, I would try the inverter because it is cheap and fairly easy to swap. If it is an LED backlight, my experience has been that the motherboard is most likely cause. You can check the parts list here if you are not sure:
http://support.lenovo.com/us/en/ibasepartslookup

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I often use File > Place to add additional items into a document. I believe the expected functionality of File>Place is that the file should then be centered in the document.
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+ 4GB RAM
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Computer #2
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+ Windows Vista x64 SP1
+ Intel Core Duo processor T8100 (2.1 GHz)
+ 4GB RAM
+ nVidia GeForce 8600M GS with 512MB DDR dedicated graphics memory, ForceWare version 167.43
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Operating System: Windows XP Professional
Browser: Firefox
Video display card / driver version: nVidia GeForce 8600 GT, driver version 6.14.11.5819
Screen shot (not sure if this works in these forums):
[IMG]http://cdn-1-service.phanfare.com/images/external/1466784_1419796_53071200_Full_3/0_0 _41325929f3d5a1780af10559af98d829_1[/IMG]
Any ideas?????
~ Kathleen

"Place" ..... It is not all the easy to understand how place works without studying its behavior. Often it will work in a way your not expecting if you do not understand how it works. There is a setting in Photoshop preferences Resize Image during Place. Un Checking this setting does not mean the image will not be resize nor does checking this setting mean that it will be resize. On top on top of that the seems to be something in Photoshop on My system that keeps changing the setting to the checked state.
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Place....
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My iphone 4s is working but I can not see the screen.

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http://support.apple.com/kb/HT1379
Message was edited by: Jo Ann+Webb

Pavilion dv9843cl backlight died

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