Question about LG Flatron L1510S 15" LCD Monitor

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I have a external lcd monitor connected to my laptop. It worked fine until now. Now if I turn it on it flickers on for a second then nothing.

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You may have failed backlight inverter circuits, you will need to try the monitor on another PC first, if it still does not work and you want to DIY repair, please read below:
Most common failures in the LCD monitors are bad capacitors (bulging top/seal or leaking) in the power supply, blown fuses, failed inverter circuits (blown fuse, shorted transistors, shorted/open transformers), bad lamps (poor solder connections or worn out lamps). You will need to open it up and inspect the inside, see example of failed monitors to get some ideas what to look for: http://s807.photobucket.com/home/budm/allalbums
Post back what you see inside so we can guide you further and it will help out other people in the future also.
http://en.wikipedia.org/wiki/Capacitor_plague
http://www.badcaps.net

Posted on May 30, 2010

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My Toshiba laptop L505 screen starts flickering and continues to get worse until it resembles a strobe light. If I turn it off it will be fine for a little while and thene do the same thing again. Is...


Hi,

If it would be a video card driver problem, you could still fix it, but if would be the video card itself, then you need to replace it.

Here what you can try.

- If you have an external monitor, connect it to your laptop. Observe if you will get the same flickering screen.
- If yes, download and install an updated video card driver from Toshiba website. Make sure that it is compatible for your Operating System (Linux, XP, Vista or Windows 7) and system model.
***NOTE: If updating the video card driver will not resolve the issue, surely the video card is failing. It needs to be replaced.
- If no, the problem is with the LCD of the laptop. Consult a professional technician to help you check LCD cable, LCD inverter and LCD itself.

- If you don't have any external monitor, go to the BIOS setup (either pressing F2..(it depends on what key was designed for it)..at the manufacturer's logo). If the screen will flicker at the BIOS setup screen, consult a professional technician to help you check LCD components.

Hope this helps.

Jul 11, 2011 | Toshiba Satellite L505-S5966 Notebook

1 Answer

Laptop Monitor Problem - I have a Toshiba Satellite Laptop. I had a system crash and I think I may have had a second problem with my monitor on my laptop showing, it went black and flickers on and off. ...


Possible disconnect of the wiring harness from the LCD to the motherboard? Might just need a new screen, but always check the simplest first. Flickering may imply faulty wiring or a lose connection in my opinion.

Mar 02, 2011 | Toshiba Satellite A135-S4467 Notebook

1 Answer

The display on my L675 S7048 is flickering badly. My whites turn pink, and my blues turn green. I see it when windows starts, even the Microsoft logo has tiny green dots all around it. When I connect an...


WHITE is a mixture of the three "primary" colours.
If one of the colours is not working, then WHITE turns PINK.

So, either your LCD display is malfunctioning,
or the "data" cable between the LCD and the motherboard is malfunctioning (not transmitting all 3 signals),
or the video-card embedded into the motherboard is malfunctioning (not sending all 3 signals).

This is nothing that you can fix by yourself; take your computer to a qualified technician, for trouble-shooting and repair.

Jan 19, 2011 | Toshiba Satellite L675-S7048 Notebook

1 Answer

When I power on my computer my monitor screen goes a solid whitish gray. worked fine yesterday, and then today nothing.


Laptop LCD screen turned completely white
What can you do if the laptop LCD screen turned completely white? From my experience I can tell that this problem may be related to the following:
1. Loose connection between the video cable and the LCD screen.
2. Defective LCD screen.
3. Defective motherboard (I assume the graphics card is integrated into the motherboard).

When you turn on the laptop, it starts but the image on the screen is completely white right from the beginning.
Most likely you still can use the laptop with an external monitor. Just connect the monitor to the VGA port on the back or side of your laptop and then switch the video output from internal to external mode.
On Toshiba laptops you can toggle between internal and external screens using Fn+F5 keys. Hold down Fn and press on F5 until you get video on the external monitor.
On IBM laptops use Fn+F7.
On HP laptops use Fn+F4.
It’s possible that you have to use a different key combination on your laptop but you get the idea.
On some laptops, in order to be able to use the external monitor, you have to connect it to the laptop and then restart the laptop so the external monitor is detected by the laptop.
I noticed that in some cases the laptop screen may turn white because of poor connection between the video cable and the LCD screen. If you want to check this connection, you’ll have to take apart the display panel because the connector is located on the back side of the LCD screen.
I always check the video cable connection first. Reconnecting the video cable may fix your problem.
If reconnecting the video cable doesn’t help, most likely you have a problem either with the LCD screen or with the motherboard.
The best way to find out which one is causing the problem is testing the laptop with another working LCD screen. Without this test you’ll have to guess because as I mentioned before this could either bad motherboard or bad LCD screen.
You’ll have to disconnect the video cable from the LCD screen and the inverter board. After that you connect another working screen and test video.
The original screen is white but my test screen works normal and I can see the image. After this test I can tell that the problem must be related to the screen.
After I assembled everything back together and connected the original LCD, it’s still white.
CONCLUSION.
In my case this problem is related to the LCD screen and it has to be replaced.

Feb 01, 2010 | Computers & Internet

2 Answers

HP G6000 laptop, screen completely green. top and bottom taskbars are black/ red flickering.


Seem like your video is going bad on the motherboard or your LCD screen. This is how you can determine which is going bad:
- Connect a monitor to the output and toggle Fn+F4 about 2-3 times or until you see video on both screens.
--If you have that same picture on the monitor then its the internal video....new motherboard needed.
--If you don't have that problem on the monitor then its with your LCD screen and it will need to be replaced.

IF THIS HELPS PLEASE VOTE.....GOOD LUCK AND THANKS..

Nov 12, 2009 | HP Pavilion dv6000z Notebook

1 Answer

Nothing appears on the display.


You could have a faulty inverter or a CCFL lamp, To determine if you have a LCD screen, inverter or video card problem, read this and follow these instructions.
Defective CCFL backlight, it may have the following symptom: Screen flashs on red/pink and off. Picture stays on in red and slowly be come normal. Picture flickering with dim display or appear black. Picture flickering 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 replacing the CCFL lamp.
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 and it could be the inverter that supplies high voltage to the CCFL lamp or it is the CCLF lamp is nearly burnt out or burnt out, most likely this is the case.
The inverter can be replaced easily but the CCLF lamp is more time consuming and requires soldering skills.
Check out
www.lcdparts.net
for parts, repair service and DIY info.

Jul 07, 2009 | HP Pavilion ze2000 Notebook

1 Answer

Ibm thinkpad t43 backlight inverter issue


Did you say the the video output flickers on and off when you connect an external monitor to the video output. If the inverter is faulty this would not affect the video output and the external monitor would not flicker but if the external monitor flickers it would point to a video card problem.

Jun 13, 2009 | IBM ThinkPad T43 Notebook

1 Answer

Computer monitor flickers


Sounds like the lcd ribbon might have come loose. Or the lcd screen itself needs to be replaced. I have included a link here. The website shows detailed pictures about how to access the parts needed to fix this problem.

The ribbon i'm speaking of is just like the vga cable you use on a normal monitor. Since there is a limited amount of space in notebooks they turned this thick cable into a small flat ribbon.

Try to look and make sure all the connections are tight and as they should be. If nothing changes you will have to change the LCD display.

http://www.laptoprepair101.com/laptop/category/lcd-screen-repair/

Jan 27, 2009 | Computers & Internet

1 Answer

Data Shows up only on External Monitor, not on Laptop Screen


If your system won't display anything w/o the external monitor. there's something wrong with the LCD's backlight. you may have to contact your laptop's manufacturer and check if this laptop is still under warranty. you may have to get the lcd replaced.

thanks.

Aug 26, 2008 | Toshiba Satellite A135-S4527 Notebook

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