- TFT LCD - a step backward ?
- Posted by penang@catholic.org on March 27th, 2007
In the past, when the big-fat monitors were still been used, if
there's any problem with them, I can open them up and find and fix the
problem.
Nowadays, where the TFT LCD bunch is taking over, when a monitor fail,
it just dies. Can't be repaired, nada, zilch.
To me, the TFT LCD represents a step backwards. I have on my hand 5
TFT LCD monitors that lie belly up, and I just can't fix them ! All of
them have the same problem - the back-lighting fails, but since
everything is compressed into a compact module, there's no way to fix
it !
Darn ! !
- Posted by paulmd@efn.org on March 27th, 2007
On Mar 26, 9:27 pm, pen...@catholic.org wrote:
Oh yes you can fix them. Find a replacement backlight. Taking apart
the screen is a bit tricky (Ok sometimes a lot tricky), but it can be
done.
- Posted by Pongo Potts on March 27th, 2007
<penang@catholic.org> wrote in message
news:1174969635.510350.89270@n76g2000hsh.googlegro ups.com...
some repairer you are, can't fix a simple backlight.
- Posted by James Sweet on March 27th, 2007
penang@catholic.org wrote:
Well it's not as if anyone gets the CRT monitors repaired anymore
anyway, everything is so cheap and disposable and I suspect it will
continue that way unless disposal costs rise significantly. Also many of
the most common faults with TFT monitors can be repaired, I usually see
dead power supplies or bad backlight inverters or tubes.
- Posted by ©rkba@ca.rkba.cid on March 27th, 2007
On 26 Mar 2007 21:27:15 -0700, penang@catholic.org wrote:
|>In the past, when the big-fat monitors were still been used, if
|>there's any problem with them, I can open them up and find and fix the
|>problem.
|>
|>Nowadays, where the TFT LCD bunch is taking over, when a monitor fail,
|>it just dies. Can't be repaired, nada, zilch.
|>
|>To me, the TFT LCD represents a step backwards. I have on my hand 5
|>TFT LCD monitors that lie belly up, and I just can't fix them ! All of
|>them have the same problem - the back-lighting fails, but since
|>everything is compressed into a compact module, there's no way to fix
|>it !
|>
|>Darn ! !
Unless they are like the 1989++ Sharp Plasma Screens, that were all
glued to hell, just popping out the "seems" would give you a good picture of
the situation..brownouts...cold solder/etc.... most are very *Tweaky*
After all the research, You only learn from your hands on
experiments.....
--
Triad Productions-Fantalla©~EZine~ParaNovel
National Astrophysical Assault Research
http://lacasse.naar.be http://ammo.at/lacasse
- Posted by kony on March 27th, 2007
On 26 Mar 2007 21:27:15 -0700, penang@catholic.org wrote:
You must not be trying very hard. What would be interesting
is to see if there is some way to refit it with LEDs for
illumination. Not on a "good" monitor, just some junky old
thing as an experiment.
- Posted by Andy Cuffe on March 27th, 2007
On 26 Mar 2007 21:27:15 -0700, penang@catholic.org wrote:
That's what I expected, but I'm happy to report than I've had more
success fixing LCD monitors than I ever did with CRT monitors. The
most common problems are simple things like bad caps and back light
problems. The inverters can often be repaired (about half of them
just have a blown fuse). I've never had to replace a CCF tube in a
desk top monitor, but at least it's possible unlike when a CRT gets
dim. Most LCD monitors are also much easier to take apart and work on
than CRT monitors. There's no more rebuilding the deflection circuit
only to have everything blow up again because the unobtainable flyback
is bad. The best part is that LCDs are light weight and easy to
handle compared to CRTs.
Andy Cuffe
acuffe@gmail.com
- Posted by Sofie on March 27th, 2007
usually the inverter board is NOT "compressed into a compact module"... and
many times can be repaired somewhat easily... backlights are not that
hard to replace in most designs but one has to be careful, gentle and not
"ham handed".
Dan
- - - - - - - - - - -
<penang@catholic.org> wrote in message
news:1174969635.510350.89270@n76g2000hsh.googlegro ups.com...
- Posted by mark krawczuk on March 28th, 2007
hi, i tel ya know , tft monitors are no where as good as crt, crt have
better depth of color , thats why graphic designers still use em
"James Sweet" <jamessweet@hotmail.com> wrote in message
news:6w2Oh.9057$_S.6996@trndny08...
- Posted by James Sweet on March 28th, 2007
It's about the same really, there's not much difference in the panels
themselves, the desktop displays just have a control board in there as well.
- Posted by penang@catholic.org on April 5th, 2007
On Mar 28, 3:56 am, "Sofie" <s...@olypen.com> wrote:
Reading your reply and those from several others here really give me a
glimpse of hope. Perhaps I'm just to dim, all the LCD that die here
have the same problem - Backlights gone kaput !
When I try to replace the backlights, I found that they are glued
tightly with the whatever (tftlcd and lightguards) and how can I
replace anything if they are glued up like that.
That said, I'm still interesting in knowing how to actually replacing
the backlights. If there's any sites that have these kinds of
intructions, I'd very much like to know about it.
Thanks to you and to all !
Happy Easter !
