Question about Compaq Presario 700 470024-192 Notebook

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Compaq presario c700 laptop no light on lcd screen after cleaning

My kid spayed cleaner on my laptop lcd screen while it was on now the lcd is on and can be seen with a flashlight but is otherwise dark i have already tried to adjust the screen brightness using function F7/F8, and hp customer service had me update/reflash the bios, as well as restore windows to factory original settings with no success, so it seems definitly hardware related. It works fine with an external display.

i have not opened it yet so is there replacable bulbs, is the lcd bad, or is there another controller card for the lcd that may be bad or is it all included in the replacement lcd?

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The display is backlit by a fluorescent lamp, not bulbs. The cleaner sprayed onto the screen has likely migrated downward and either disabled or destroyed the inverter used to produce high voltage for the backlight lamp. The inverter may be part of the display or on a separate board and you can only determine that by some disassembly.

Posted on Jan 25, 2009

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Well it seems like your backlight is shot. I cracked my HP LCD and when I went to the HP Support website to chat online with a tech he gave me an outrageous price for a new LCD(~$800). After I told him I could get a new one on Ebay for ~$120 he sent me a link for the actual shop manual detailing how to remove the old LCD and replace it.

Posted on Jan 25, 2009

  • Mike
    Mike Jan 25, 2009

    The bulbs are in the LCD itself. As for the power inverter it is a separate board located just below the LCD


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You have likely shorted the lcd. the only cost effective solution is to purchase a replacement lcd which will replace all required parts for it.

Posted on Jan 25, 2009

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Manual for compaq c700

you can download the service and maintenance manual from the below link

if you want user manual then catch it from here.

from this link, you can download each manual in details and separately.

best of luck!

Apr 18, 2012 | Compaq Presario C700 Series Laptop...

1 Answer

I need a screen for the lapta laptap for a compaq c 700

From a quick search on the internet,

Need the Service Manual? (Free)

Go down to the line that starts with Compaq Presario 1100, then go across to > C700, and click on it.

This is a PDF file. After you click on C700 you may not see anything happening for up to 30 seconds. The file is downloading in the background.

After you see the first page come up, I suggest you let the file download all the way before looking through it.

(Took 7 seconds for the first page to come up, and an additional 53 seconds for the file to fully download, just now.
I'm using a medium speed DSL connection)

Page 55 - Display assembly

1) Work on a table

2) Observe Anti-Static Precautions.

3) Use a multi-compartment container for the various screws you will remove.
Mark the compartments for the area the screw/s came out of.
Do NOT mix them up!

If no multi-compartment container is available, you can use a clean egg carton. Mark the egg holders.

4) When you remove the LCD screen, look at the back. Write down the manufacturer name, and part number. Match it up to the one you're going to buy. Make SURE it it is the correct size.
(The screen is measured diagonally. From corner to corner)

If the screen is dark, and there is no apparent physical damage to it, do not assume the problem is the LCD screen.

Laptop on use a flashlight to see if you can see faint images.
If so, 90 percent of the time the problem is a bad Inverter.

A small circuit board located at the bottom of the Display assembly, and behind the Bezel.
MUCH cheaper than an LCD screen.

If you need guidance in replacing the LCD screen, or Inverter, and would also like some tips, post in a Comment.


Nov 22, 2010 | Compaq Computers & Internet

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1 Answer

Download sound driver for compaq presario c700 with product number GS096PA#ACJ

there are several models in the C700 series. select what you model you have from the link. then select the OS you have. it will give your drivers to download

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Missing drive

Use system restore to set computer earlier date that was working fine. If there is a missing driver by symptoms please go to or

For further assistance please post more.
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Jun 16, 2008 | Compaq Presario 700 470024-192 Notebook

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Automatic detection of lcd projectors to my hp compaq presario c700

try to set your resolution on your laptop, it have an option for proyektor setting, i've done it but now it displyed not horizontally but vertically, do you have any solution??

Jun 05, 2008 | Compaq Presario 700 470024-192 Notebook

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