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Hello i have changed my cracked screen on vpcea16fa and it is still black it displays fine on external tv and is not brightness settings and i thought the backlight was built into the screen can anybo

Black screen even with new screen

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  • garyishere67
    garyishere67 Feb 02, 2013

    Just to let you know i have now bought and changed the screen twice and i can not see the screen unless i shine a torch onto it very strange as lighting is built into the screen I scratch my head and wonder if more money should be spent ! but thank you for all the advice

  • joecoolvette
    joecoolvette Feb 02, 2013

    Is there a screen Inverter? Nothing I brought up in my searches, manuals, etc, suggests a screen Inverter is used, However........A small circuit board, usually located at the base of the LCD screen, and behind the Display Bezel. No? Alright...........How about the Video Cable? Connections were tight I assume? Condition of Video Cable was OK? Passed a continuity test? Is there a separate cable leading to the top of the LCD screen? As in a separate power wire to the LED backlighting? Do you know for sure that the LCD screen's you purchased, are exact matches for your VAIO? Are both LCD screen's from the same place? (Yes. I'm sitting here bummed out that you have purchased TWO LCD screens, and the problem isn't cured) There is a such thing as two bad LCD screens. That is also referring to they both could have a problem with their LED backlighting. This is what I lean towards now; A) Video Cable may have a bad wire in it. Continuity test was not performed, or tech who performed it for you lied, and never tested it. B) Video Cable connections aren't tight. Have to physically check. Visual inspection alone will NOT do. C) Separate wire comes up, and plugs into LED backlighting, and neither one of us is aware of it. (Just a guess) Isn't plugged in.

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  • Computers & ... Master
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A) The Backlight IS built into the LCD screen assembly.
It's a series of LED's. (Light Emitting Diode)

I assume there is no screen Inverter, because it is LED backlighting. Also because I cannot pull one up.

Therefore I conclude that the Video Cable is either not connected securely to the motherboard connector, or the LCD screen connector; or is damaged.

Or it is the wrong LCD screen.

Did you check the motherboard side connection?
PHYSICALLY? Visual will NOT do.

Sure the LCD screen side connection of Video Cable is tight?

Did you perform, or have performed; a continuity test on the Video Cable? Check it's tiny wires to make sure one isn't stretched/broken?

You can remove the Video Cable, take it to the nearest small computer shop, and have the resident tech perform a continuity test on it. Few bucks.

If the sheath of the Video Cable looks to be damaged, the wires inside may be also. However, DO NOT assume. Needs to be tested.

http://www.youtube.com/watch?v=LOyP1kSerRk

For additional questions please post in a Comment.
Regards,
joecoolvette

Posted on Jan 10, 2013

Testimonial: "Thank you i will try this today"

  • joecoolvette
    joecoolvette Jan 14, 2013

    You're welcome, and thank you for the rating! Would appreciate hearing the outcome. Please post in a Comment. Regards, joecoolvette

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  • Contributor
  • 17 Answers

If you display on tv ...that is a special card doing the video for tv... you need to replace video card on pc or get an external usb video device and plug in external monitor... cheaper to replace pc totally

Posted on Jan 10, 2013

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Benimur
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SOURCE: Data Shows up only on External Monitor, not on Laptop Screen

Hi,

Since the laptop works on the external monitor, then it would be safe to assume that it is only the L:CD display part that is the issue. Often LCD display (of laptops) are working but only that you can see the actual display. One way to verify is to shine a flashlight at an oblique angle to the screen, semblance or part of the desktop could be seen. If the desktop could be seen (albeit very very dark background) then it could either be the CCF Lamps (cold cathode florescent) or the inverter that powers the lamps.

Often, the defective component would be the inverter. It is relatively easy to replace the inverted. It is sometimes more difficult and challenging cracking open the casing of the display panel of the laptop than replacing the inverter. Additionally, inverters are readily available online. It is also not surprising that inverters for other brands/models would also be used in your Toshiba.

This would be a good place to start for inverter boards. This is a nice tutorial if you are considering a DIY.

In some worst case scenario, it could be the video interface or even a loose/open flat cable from the laptop's main body towards the LCD display panel.

Hope this be of initial help/idea. Pls post back how things turned up or should you need additional information.

Good luck and kind regards.

Thank you for using FixYa.

Posted on May 08, 2008

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SOURCE: evo n610c black black screen please help

If an external monitor works, then the LCD has failed and needs replaced.

Posted on Jul 20, 2008

Solo4665
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SOURCE: My FN+F6 doesnt keep my screen on the laptop open

Change the settings from the display settings panel. (Right click on the desktop and go to display settings)
You should see 2 monitors graphically represented there. 
You can make the monitor that is greyed out active by right clicking on the monitor, and selecting active.


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Posted on Dec 11, 2008

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SOURCE: HP ZD7000 laptop screen won't work.

Try the link . . . www.laptop-problem-solution.com

For find your best solution.


49

Posted on Jul 25, 2009

  • 76 Answers

SOURCE: Replaced Laptop Screen Brightness Problems.

hi
-try updating the system BIOS of the computer
-visit support.dell.com
-click on drivers and downloads
-click or choose by service tag
-download the BIOS and install it on the computer

cheers!

Posted on Oct 04, 2009

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d775564.gif

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