[ltp] T23 and eye strain
Frank Dekervel
linux-thinkpad@linux-thinkpad.org
Tue, 15 Jul 2008 17:14:53 +0200
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Hello,
> I can confirm this - I have a T42 where the display backlight has started to
> exhibit a strong red tint and has significantly lost brightness. The tint
> disappears after a certain "warm-up" time, but the display is still very dim.
>
I had the same problem on my old R51. I scanned the mail archives of
this list, and someone on this list had replaced the backlight of his
LCD. He mentioned the site.
I have ordered a replacement backlight for my R51 for around 10 euro (a
very narrow fragile tube) and replaced it myself. It turned out that
once you have the right manuals (search for <your model> hardware
maintenance manual on google), it is not too difficult (you need some
basic soldering too).
After replacing my backlight (took me more than 4 hours, mostly due to
being not very handy, i think if you are used to it you can do it in 1.5
hour), no more red tint, and back to the original brightness.
2 months after i made the replacement, the backlight died (when i open
the laptop, the backlight works for 1 second, then i hear a loud hiss,
then it stops working). probably i didn't do the soldering very well. I
have another backlight (i ordered 2) so i might try again :)
i think the vendor was this:
http://www.lcdpart.com/doc/ccflinstallation.html
greetings,
Frank
>> So, probably you're suffering just from degraded brightness / contrast. The
>> timescales for this are 2-3 years or so (for example, I could easily use my
>> X40 outside when it was new and now this is no-way on a sunny day).
>>
>
> Same here - this laptop is now 4 years old. Not sure if it's worth trying to
> replace the backlight itself...
>
> Bye,
> LenZ
>
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Hello,<br>
<br>
<blockquote cite="mid:487C79A5.9060808@grimmer.com" type="cite">
<pre wrap="">I can confirm this - I have a T42 where the display backlight has started to
exhibit a strong red tint and has significantly lost brightness. The tint
disappears after a certain "warm-up" time, but the display is still very dim.
</pre>
</blockquote>
I had the same problem on my old R51. I scanned the mail archives of
this list, and someone on this list had replaced the backlight of his
LCD. He mentioned the site.<br>
<br>
I have ordered a replacement backlight for my R51 for around 10 euro (a
very narrow fragile tube) and replaced it myself. It turned out that
once you have the right manuals (search for <your model> hardware
maintenance manual on google), it is not too difficult (you need some
basic soldering too).<br>
<br>
After replacing my backlight (took me more than 4 hours, mostly due to
being not very handy, i think if you are used to it you can do it in
1.5 hour), no more red tint, and back to the original brightness. <br>
<br>
2 months after i made the replacement, the backlight died (when i open
the laptop, the backlight works for 1 second, then i hear a loud hiss,
then it stops working). probably i didn't do the soldering very well. I
have another backlight (i ordered 2) so i might try again :)<br>
<br>
i think the vendor was this:
<a class="moz-txt-link-freetext"
href="http://www.lcdpart.com/doc/ccflinstallation.html">http://www.lcdpart.com/doc/ccflinstallation.html</a><br>
<br>
greetings,<br>
Frank<br>
<br>
<br>
<blockquote cite="mid:487C79A5.9060808@grimmer.com" type="cite">
<blockquote type="cite">
<pre wrap="">So, probably you're suffering just from degraded brightness / contrast. The
timescales for this are 2-3 years or so (for example, I could easily use my
X40 outside when it was new and now this is no-way on a sunny day).
</pre>
</blockquote>
<pre wrap=""><!---->
Same here - this laptop is now 4 years old. Not sure if it's worth trying to
replace the backlight itself...
Bye,
LenZ
</pre>
</blockquote>
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