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IBM thinkpad screen

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June 27, 2005 3:39:10 PM

Archived from groups: comp.sys.laptops (More info?)

A friend of mine has an IBM Thinkpad T21, and his screen went dead. He said
it started not turning on but sometimes moving the laptop screen up and down
would make it turn on, until it didn't work anymore.
It appears to be the typical backlight problem, where you can see the LCD
generating the display but there is no backlight.
What are ths usual problems that cause the backlight to go dead and the ways
to fix it?

thanks,

guillermo

More about : ibm thinkpad screen

Anonymous
a b D Laptop
June 27, 2005 5:00:50 PM

Archived from groups: comp.sys.laptops (More info?)

Guillermo wrote:
> A friend of mine has an IBM Thinkpad T21, and his screen went dead.
> He said it started not turning on but sometimes moving the laptop
> screen up and down would make it turn on, until it didn't work
> anymore.
> It appears to be the typical backlight problem, where you can see the
> LCD generating the display but there is no backlight.
> What are ths usual problems that cause the backlight to go dead and
> the ways to fix it?

In his case--based on the fact that it worked intermittantly when the lid
was excercised--it sounds like a cable problem between the lid (display)
section and the rest of the computer. It could have become unseated in it's
socket on one end or the other; or it might be broken.

jak

>
> thanks,
>
> guillermo
June 27, 2005 8:07:13 PM

Archived from groups: comp.sys.laptops (More info?)

"jakdedert" <jdedert@bellsouth.net> wrote in message
news:4hYve.12305$Bm.6341@bignews5.bellsouth.net...
> Guillermo wrote:
> > A friend of mine has an IBM Thinkpad T21, and his screen went dead.
> > He said it started not turning on but sometimes moving the laptop
> > screen up and down would make it turn on, until it didn't work
> > anymore.
> > It appears to be the typical backlight problem, where you can see the
> > LCD generating the display but there is no backlight.
> > What are ths usual problems that cause the backlight to go dead and
> > the ways to fix it?
>
> In his case--based on the fact that it worked intermittantly when the lid
> was excercised--it sounds like a cable problem between the lid (display)
> section and the rest of the computer. It could have become unseated in
it's
> socket on one end or the other; or it might be broken.

Would there be an easy way to distinguish wires for the LCD itself from the
backlight wires?

g
Anonymous
a b D Laptop
June 28, 2005 3:28:19 AM

Archived from groups: comp.sys.laptops (More info?)

The possibilities are:
1. LCD cable - very common
2. LCD/suspend switch. It can stick, or if the palmrest is distorted
it will display this behavior
3. LCD cable not plugged properly into motherboard - remove keyboard
and re-seat with power supply and battery removed.
4. Inverter - cheap and easy to replace
5. Backlight - easiest fix is a new LCD from Ebay
All the above repairs are actually rather easy to do.
Hope this helps!

On Mon, 27 Jun 2005 11:39:10 -0400, "Guillermo"
<sailingpilot@gmail.com> wrote:

>A friend of mine has an IBM Thinkpad T21, and his screen went dead. He said
>it started not turning on but sometimes moving the laptop screen up and down
>would make it turn on, until it didn't work anymore.
>It appears to be the typical backlight problem, where you can see the LCD
>generating the display but there is no backlight.
>What are ths usual problems that cause the backlight to go dead and the ways
>to fix it?
>
>thanks,
>
>guillermo
>
>
!