Question about HP Compaq Presario v3000z Notebook
Fine..it seems that u r a professional..
however it may not b the problem of the system board..
plz do the following checks..
try to connect to an external vdu/monitor using the laptops vga port..if there's display..check the lcd, inverter circuit & ccfl backlight..
if not post me comments..i'll guide u to next step(s)..
if problem persists contact system admin/vendor....
Posted on Nov 16, 2009
You may have a defective CCFL backlight, it may have the following symptom: Screen flashes on and off or displays reddish pink hue. Picture stays on in red and slowly be come normal. Picture flickering with dim display or appear black. Picture flickers on and off. All these symptoms indicate that the LCD backlight lamp (CCFL Lamp) has reached the end of the life and all you need to do is replace the CCFL lamp.
To determine if the video card or the LCD is faulty, connect an external monitor to your laptop and power the monitor up first then the laptop, if you see the normal Windows images then the video card and laptop is OK and the problem is definitely the backlight. Dim image and/or dark display on the laptop's LCD screen indicates a faulty LCD backlight. It could be a faulty inverter that supplies high voltage to the CCFL lamp or it is the CCLF lamp is nearly burnt out; usually the CCFL lamp fails before the inverter.
The inverter can be replaced easily but the CCLF lamp is more time consuming and requires soldering skills.
Check out LCD Parts for service, parts, and DIY info Use this link to their WEB site: -
Posted on Nov 16, 2009
If you don't have any image at all, and it's not the backlight.Try to find an online guide on how to open the laptop and try to reflow the GPU chip. there are guides onhow to do that yourself as well, if you are tech savy. I work for Laptop repair NYC and we do this repair frequently.
Posted on Dec 20, 2009
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Posted on Jan 02, 2017
SOURCE: compaq v3000 laptop no display
Try using the function key for your display options
You should see a key related to your function key, generally a different color then the rest, labeled (F, Fun, FN, etc...) then look for a CRT/LCD, or LCD, or a symbol of a rounded square, or something resembling a monitor or screen.
Hold Fn and press that button, give it a few seconds. It should switch.
You can also hold a flash light up to the screen and see if there's any image, if this is the case then parts need to be replaced.
If you have any more questions please let us know. If this information has been helpful, please take a moment to rate the solution. Thank you.
Posted on Apr 23, 2009
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