https://www.thinkwiki.org/w/api.php?action=feedcontributions&feedformat=atom&user=84.153.3.201ThinkWiki - User contributions [en]2026-09-22T09:46:03ZUser contributionsMediaWiki 1.31.12https://www.thinkwiki.org/w/index.php?title=Problem_with_red_tinted_display&diff=3138Problem with red tinted display2005-03-09T16:16:49Z<p>84.153.3.201: /* Solutions */</p>
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<div>Information about the problem of red tinted display corners in T23 ThinkPads.<br />
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==Problem description==<br />
If your screen is developing a red tint on the bottom left and/or right corners, this is the sign of a dying LCD and it will slowly spread to the whole screen.<br />
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The red tint is strongest when the screen is first switched on and it will fade away with the time your ThinkPad is running.<br />
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==Affected Models==<br />
*ThinkPad T23 (with high resolution displays)<br />
*ThinkPad A31p (2653-H4U and similar with high resolution displays)<br />
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==Affected Operating Systems==<br />
*all<br />
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==Status==<br />
It is not clear which component (screen/backlight/inverter) exactly is responsible for this.<br />
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==Solutions==<br />
You can have IBM fix the problem if your ThinkPad is still in warranty.<br />
Or:<br />
Change the Cathode ray tube, which has deceased. The phosporous layer of cold tube has a high spectrum in red, with the other spectra joining in after a few seconds, resulting in white color. this usually happens with aged tubes.<br />
The tube is 2mm by 20mm and is a special part that can be ordered. <br />
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[[Category:T23]] [[Category:A31p]]</div>84.153.3.201