Full Column of Stuck Pixels

T400/410/420 and T500/510/520 series specific matters only
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wswartzendruber
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Full Column of Stuck Pixels

#1 Post by wswartzendruber » Tue Jan 26, 2010 3:18 am

My whole 262nd column (vertical) of pixels is stuck solid cyan. I used to be able to twist the display to make it go away. Ever since I took the plastic shell off and fiddled around, I haven't been able to do that anymore. I can't find much on these forums regarding stuck rows.

Any ideas?

It's a 1440x900 LED made by LG.
Model: Lenovo ThinkPad T400
CPU: Intel Core 2 Duo P8400 (2.26 GHz, 1067 MHz FSB, 3 MB L2 Cache)
RAM: 4 GB PC-8500 (1067 MHz, Dual-channel)
HDD: 500 GB, 54000 RPM
Audio: Conexant CX20561 (192 kHz, 24-bit)
Video: Intel GMA 4500MHD
Wireless: Intel 5300

Harryc
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Re: Full Column of Stuck Pixels

#2 Post by Harryc » Tue Jan 26, 2010 3:26 am

There is no repair for that. Replace the LCD. You have a small fracture in the control array which is causing one of the transistor control lines to fail.

wswartzendruber
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Re: Full Column of Stuck Pixels

#3 Post by wswartzendruber » Tue Jan 26, 2010 12:36 pm

I don't suppose I can upgrade to an IPS while I'm at it?

EDIT: Are all LCD connectors the same?
Model: Lenovo ThinkPad T400
CPU: Intel Core 2 Duo P8400 (2.26 GHz, 1067 MHz FSB, 3 MB L2 Cache)
RAM: 4 GB PC-8500 (1067 MHz, Dual-channel)
HDD: 500 GB, 54000 RPM
Audio: Conexant CX20561 (192 kHz, 24-bit)
Video: Intel GMA 4500MHD
Wireless: Intel 5300

Harryc
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Posts: 13228
Joined: Thu Apr 12, 2007 8:23 am
Location: Upstate New York

Re: Full Column of Stuck Pixels

#4 Post by Harryc » Tue Jan 26, 2010 12:48 pm

The connectors may not always be the same, and the EDID chips required for Lenovo machines may not exist on other seemingly compatible LCDs. Also, Lenovo and IBM never made a 14" 1440x900 widescreen IPS LCD, so that is not one of your options.

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