Laptop screen busted.?

Packard bell / Easynote sw51-201
March 24, 2009 at 14:00:13
Specs: Windows XP, AMD Turion 64x2.2 gig DDR2
Packard Bell laptop screen suddenly went off
and i have no idea why.
I was messing about trying to get an old game running that i had forgotten about, but it wanted to run in 16 bit colour or somrthing so i just clicked on cancel.
Two seconds later the screen went, its not off completely, the backlight is on but there is no display.I can turn the brightness up and down using the Fn key with F6 and F7.

I can plug my CRT monitor in and all is fine.
The only thing i noticed is in the device manager under monitors, it is showing three up, two as default and one as my CRT.

I have tried reinstalling mobo and graphic drivers but no change....

Does anyone have any idea..
Thanks for your time.

BB.


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#1
March 24, 2009 at 14:25:20
Does the screen show any thing when the computer is booting up (BIOS/POST info, etc)?

-Ryan Adams
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#2
March 24, 2009 at 16:35:52
Thanks for the reply.

No, The laptop screen just has a slight glow, mainly round the edges.
Bios and windows boots normally when the CRT monitor is plugged in..

BB.


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#3
March 24, 2009 at 16:52:47
There should be a key combination to toggle between the built in display, the external display, and both. Usually it is Fn + F2. You might try pressing that. I doubt that will fix your problem though. It sounds like a hardware problem. It could be that the cable connecting the display to the graphics card/motherboard is loose or it could be that a component actually failed. If you are adventurous you could try opening your laptop up and re-seating the connections, but you may be better off having a professional look at it.

-Ryan Adams
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Related Solutions

#4
March 24, 2009 at 17:41:17
Thanks again,
But still no joy.

I have been reading up on other posts and have a feeling it
could well be a hardware problem.

From what i have been reading it sounds like i have blown the
LCD inverter, not too expensive to fix.

I did have it all apart yesterday to check the connections, and it looks like im going to have to do it all again to get the inverter out so i can find a match for a replacement..

Ho hum, how many screws will i drop this time..

I will post up any findings..

BB.


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#5
March 24, 2009 at 19:46:07
If the back light is still on (which i believe you state is the case), then it is not the inverter.

If you are not sure if it is the inverter: try holding a flashlight in a corner of the screen. If you can barely see the screen image, then the back light/inverter is dead.

If it is the backlight/inverter, you might want to check the inverter with a multimeter. In my experience, it is usually the backlight (the "bulb") and not the inverter that dies.

-Ryan Adams
Free Computer Tips and more:http://RyanTAdams.com

Paid Tech Support: Black Diamond


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#6
March 25, 2009 at 00:11:36
Do you think me trying to make an old game work had anything to do with this?
It kept trying to change to 16 bit...

Or just bad timing.?

BB.


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#7
March 25, 2009 at 09:12:23
Since we have concluded it is a hardware problem, it is extremely unlikely that the game had anything to do with it.

-Ryan Adams
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Paid Tech Support: Black Diamond


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#8
March 31, 2009 at 15:27:02
It took a few days to try a few things but i am still stuck....

A friend lent me an old laptop that has a few problems but still boots.So i took the screen from it and plugged it on to my laptop,its not the same size,mine is a 17" this one is only about 15". When i booted it up it started ok and the screen worked...

So it is not my mobo,screen cable, or inverter that is the problem.

To put my mind at rest i took the tube out of my screen,plugged it in with the other screen on my laptop and it lit up fine..

The only thing left has to be the circuit board on the back of the screen that the cable plugs into..

What is this and can it be replaced....???

Thanks for any info.

BB.


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#9
March 31, 2009 at 16:12:28
Wait, what! You were able to connect a screen from a completely different laptop and get it to work?

Usually the actual LCD screen, the backlight, and the inverter are all in the "lid" of the laptop. Meaning, if you used the "lid" from your friends computer and it worked, it could very well still be your "lid"'s inverter/backlight.

-Ryan Adams
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Paid Tech Support: Black Diamond


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#10
April 1, 2009 at 00:04:40
Hello again..

What i have done is to remove the plastic casing from the front of my lid, unscrewed and removed my screen,leaving the inverter on the back case of my screen and just placed my friends screen leaning up against my back case as it will not fit, plugged in my screen cable to back of his screen and plugged the backlight from his screen into my inverter and all worked fine....

Yes both laptops are different as well,

I will try and post up some pictures when i get home later just to show if you like..??

BB.


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#11
April 1, 2009 at 13:17:19
By that process, it sounds like the issue is your backlight or the LCD display itself. Unless you physically break the LCD, they never really just fail like that, so I would bet it is your back light.

-Ryan Adams
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#12
April 1, 2009 at 13:37:47
In that case it has to be the screen itself that has died..

As a last ditch attempt to find a fault i have removed the backlight tube from my screen and tested it by plugging it in to my laptop with the other screen on it.

My tube lit up bright, and i could just about see the information on bootup on the other screen plugged in my laptop, obviously due to me unplugging the backlight fo that screen and putting the one on from my busted one...

OK.

Thanks for your help, looks like im needing a new screen then.

Do you know any cheap retailers in the UK where i might be able to pick up a 17" screen....?

Thanks again,

BB


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#13
April 1, 2009 at 14:54:40
You'll need to get a screen specific to your model. I would try searching ebay for your computer model + "lcd". You may also find a sticker with a part number on the lcd you could search for.

PS: Start of searching as non-specific as possible. For example, if you have a "Toshiba Portage M200-555" jsut search for "m200 lcd".

-Ryan Adams
Free Computer Tips and more:http://RyanTAdams.com

Paid Tech Support: Black Diamond


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#14
April 1, 2009 at 16:44:48
Cheers mate...

All the best.

BB.


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