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no backlight on hp laptop screen


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5 replies to this topic

#1 shagger

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Posted 27 December 2008 - 08:46 PM

My daughter was in car wreak. The laptop was sitting on her lap when the air bags deployed. She did not notice till she got home that her screen back light was not working, Took it to a shop and worked on external monitor. Replaced lcd inverter board and still does not work. What else could it be. The inverter board powers up. I have a lot of trouble finding anyone who take screen apart to check bulbs. They all say replace screen. My logic says the screen works ,and it does,but without light. What are my final choices. It is a nice laptop, hp dv-8000, but too expensive to replace. Any help would be appeciated,thanks

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#2 dpunisher

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Posted 27 December 2008 - 10:08 PM

I understand their hesitation, if they slip, they ruin your LCD and end up owing you a new one. Boot it up and hold a flashlight against the screen, you should be able to see text if the video output is still working. If it is OK, then bulb(s) are about the last option to fix it. Some of the higher end HPs have dual bulbs. Bulbs can be replaced, but it can be a bear. You might look around on EBay or shop that specializes in used laptop parts and find the complete display.

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#3 garmanma

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Posted 27 December 2008 - 10:19 PM

This is an eBay store, not a private seller
http://cgi.ebay.com/NEW-LCD-CCFL-BACKLIGHT...1QQcmdZViewItem
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#4 Johnny Boy

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Posted 28 December 2008 - 12:48 AM

I would just change the entire screen..its not that big of a deal and can usually be done for less than $100. I did one on a gateway mx6131 and at first i was like "I dont know that i can do it" its pretty much 2 things..the power from the inverter..and the ribbon to the video on the mobo.....if you can install a cd drive....then you can install a screen! its that easy!
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#5 shagger

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Posted 28 December 2008 - 01:09 AM

I would just change the entire screen..its not that big of a deal and can usually be done for less than $100. I did one on a gateway mx6131 and at first i was like "I dont know that i can do it" its pretty much 2 things..the power from the inverter..and the ribbon to the video on the mobo.....if you can install a cd drive....then you can install a screen! its that easy!


Do you have good websites where i can find screens?

#6 Platypus

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Posted 28 December 2008 - 05:00 AM

The service manual detailing service disassembly/reassembly etc can be found here:

http://h10032.www1.hp.com/ctg/Manual/c00701888.pdf

Top 5 things that never get done:

1.





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