TFT LCD - a step backward ?
 

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 ! !

TFT LCD - a step backward ?
 

On Mar 26, 9:27 pm, 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 !


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.


Darn ! !

TFT LCD - a step backward ?
 

wrote in message
ups.com...
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 ! !


some repairer you are, can't fix a simple backlight.

TFT LCD - a step backward ?
 

TFT LCD - a step backward ?
 

On 26 Mar 2007 21:27:15 -0700, 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

TFT LCD - a step backward ?
 

On 26 Mar 2007 21:27:15 -0700, 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 !


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.

TFT LCD - a step backward ?
 

Andy Cuffe wrote in
:

On 26 Mar 2007 21:27:15 -0700, 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 ! !

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




You certainly don't have colorimetry,geometry alignment and convergence
problems with LCD displays.

--
Jim Yanik
jyanik
at
kua.net

TFT LCD - a step backward ?
 

On 26 Mar 2007 21:27:15 -0700, 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 ! !

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

TFT LCD - a step backward ?
 

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
- - - - - - - - - - -



wrote in message
ups.com...
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 ! !

TFT LCD - a step backward ?
 

and also ... think of your eyes....

not every electron stops at the phosphorescent layer

you know, the electrons, from the gun(s), pointed at your head

TFT LCD - a step backward ?
 

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" wrote in message
news:6w2Oh.9057$_S.6996@trndny08...
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 ! !



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.

TFT LCD - a step backward ?
 

I've replaced ccfls in a laptop display so I imagine it would be much
easier on a desktop display.




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.

TFT LCD - a step backward ?
 

jonpi wrote:
and also ... think of your eyes....

not every electron stops at the phosphorescent layer

you know, the electrons, from the gun(s), pointed at your head

Huh? Electrons can't travel through the air, that's why even a tiny
amount of air leaked into a vacuum tube will cause it to stop functioning.

TFT LCD - a step backward ?
 

James Sweet wrote in
news:tcoOh.5618$Qi2.2424@trndny07:

jonpi wrote:
and also ... think of your eyes....

not every electron stops at the phosphorescent layer

you know, the electrons, from the gun(s), pointed at your head

Huh? Electrons can't travel through the air,

At typical TV set accelerating voltages,they aren't going to penetrate the
faceplate,either.

that's why even a tiny
amount of air leaked into a vacuum tube will cause it to stop
functioning.


He's been sitting too close to the TV set again.

--
Jim Yanik
jyanik
at
kua.net

TFT LCD - a step backward ?
 

James Sweet 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.


The lifespan of the tubes in CRT monitors has gotten so short, too. A
few years ago, I used to work at a place where we still ran Windows NT.
NT has no concept of power saving modes so the monitors generally were
just run 24/7. They'd last about two or three years before the contrast
got too bad to use them anymore. Some factory in China has figured out
how to make a filament that will cook off all its high-energy electrons
during the warranty period. ;)

TFT LCD - a step backward ?
 

jonpi wrote:
and also ... think of your eyes....

not every electron stops at the phosphorescent layer

you know, the electrons, from the gun(s), pointed at your head

Heh heh...each monitor is your own little particle accelerator. ;) The
ones with the little hole burned in the middle of the screen drive home
the point the best, I think.

TFT LCD - a step backward ?
 

On Mar 28, 3:56 am, "Sofie" wrote:
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
- - - - - - - - - - -

wrote in message

ups.com...

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 ! !



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 !

TFT LCD - a step backward ?
 

On 27 Mar, 19:07, Jim Yanik wrote:
Andy Cuffe wrote :
On 26 Mar 2007 21:27:15 -0700, wrote:

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.

an easy fix IME


You certainly don't have colorimetry,geometry alignment and convergence
problems with LCD displays.

Colorimetry issues are severe with lcds. Move your head to the side a
bit and the colour goes way off on mine - theyre old - the advantage
is theyre unfixable, so no need to waste any time.

CRTs win on almost all points technically, except for resolution, the
slimness and light weight of tfts is about the only advantage.


NT

TFT LCD - a step backward ?
 

TFT LCD - a step backward ?
 

David Brodbeck wrote:
wrote:

CRTs win on almost all points technically, except for resolution, the
slimness and light weight of tfts is about the only advantage.


Also low power consumption, low heat generation, and immunity to
magnetic fields. You can put two LCDs next to each other without them
making each others' pictures wobble and squirm. ;)


And some of the new ones really have excellent pictures, viewing angle
has improved tremendously too. I still say a *good* CRT wins for me, but
I'm a demanding user and often use different resolutions, something a
flat panel is not good at, but for the average user a good LCD with DVI
input will be better hands down. Geometry and convergence are dead on,
zero flicker, perfectly flat, square, light, thin, it's no mystery why
they're so popular.

TFT LCD - a step backward ?