Electronics Repair (sci.electronics.repair) Discussion of repairing electronic equipment. Topics include requests for assistance, where to obtain servicing information and parts, techniques for diagnosis and repair, and annecdotes about success, failures and problems.

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Default LCD televisions more reliable than CRT based ones?

Im in the market for e new "small" TV

I live alone and don't need a big huge TV

I can get a decent 20" analog crt based Tv for abt $150

Or a 19" flat LCD based Tv for abt $700

Im curious if LCD based television have less failure
problems than CRT based ones?

Any advice on this?

I don't mind spending a premium on new technology as
long as it has higher or AS high of reliability as the
older technology. Hence the question.
  #2   Report Post  
 
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I can answer from a computer monitor perspective. We use both CRT's and
LCD's at work and by far CRTs will last longer and are more reliable.
That does not make them better per se but you will have to weigh out
the advantages. CRTs usually have a truer color and have greater
latitude in adjusting the resolution and color and are cheaper. CRTs
are heavier, consume more power, and put out minute radiation, and are
very costly at extremely large size screens. LCDs are a decent
compromise between color and resolution, can be larger, and are
lighter. They are much more expensive though. I would say if you spend
a lot of time in front of your tv, see which one you have to struggle
to see or feel comfortable. At 20" I personally would stick with a CRT.
Heck, go for a 25 or 26", they are not that much more expensive. My 2
cents.

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Heck, go for a 25 or 26", they are not that much more expensive. My 2
cents.


Understand

But il probably go with a 20" flat CRT based TV

I want something I can move around easily by myself.
When you live alone you have to "think" abt moving
things around by your self before you buy them. Ha!

Soo..... any advice on what brands of 20" flat CRT
based TV to by?

Im thinking Toshiba or Panasonic

However I did see in Consumer Reports that Sanyo has a
good reliability record.... but Im not too keen on
their picture quality

Advice?

BTW.... thanks for the help guys!!
  #4   Report Post  
NSM
 
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wrote in message
...
Im in the market for e new "small" TV

I live alone and don't need a big huge TV

I can get a decent 20" analog crt based Tv for abt $150

Or a 19" flat LCD based Tv for abt $700

Im curious if LCD based television have less failure
problems than CRT based ones?

Any advice on this?

I don't mind spending a premium on new technology as
long as it has higher or AS high of reliability as the
older technology. Hence the question.


I regard LCD as less reliable and more unfixable. Good luck getting 20 years
out of the LCD model.

N


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I regard LCD as less reliable and more unfixable. Good luck getting 20 years
out of the LCD model.


Point taken

Maybe I better stick with a crt based TV huh?


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NSM
 
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wrote in message
...
I regard LCD as less reliable and more unfixable. Good luck getting 20

years
out of the LCD model.


Point taken

Maybe I better stick with a crt based TV huh?


Eventually you won't have a choice, but tube technology is old and well
known. For now it's a better bet. 8mm movie cameras are also reliable and
robust, but they're a bad economic choice now compared to a camcorder.

N


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Eventually you won't have a choice, but tube technology is old and well
known


How much longer do you think before you wont even be
able to buy a CRT based TV?

is it as short as two years maybe?
  #8   Report Post  
Jerry G.
 
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I have been to some computer stores, that don't even stock CRT monitors
any more. There are fewer models available as time goes on. I read some
articles that there will no longer be CRT monitors or TV sets to be
available in about 3 to 5 years.

Maybe some countries like China may produce some low end CRT monitors
just to fill in the markets where there are people who really want a
CRT monitor no matter what. This is soon to be seen.

Jerry G.
======

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James Sweet
 
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wrote in message
...
Eventually you won't have a choice, but tube technology is old and well
known


How much longer do you think before you wont even be
able to buy a CRT based TV?

is it as short as two years maybe?


I would predict CRT sets will be reasonably obtainable for another 10 years
or so, there's enough people out there who demand a CRT for one reason or
another and it'll be at least a few years before the cost is comparable to a
CRT. Something better than LCD will have to come along to kill CRT entirely,
perhaps if OLED really matures, though they may never resolve the lifespan
issue.




  #11   Report Post  
James Sweet
 
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wrote in message
...
I regard LCD as less reliable and more unfixable. Good luck getting 20

years
out of the LCD model.


Point taken

Maybe I better stick with a crt based TV huh?


Not nessesarily, I would say an LCD TV should be more reliable than a modern
CRT TV, usually the first thing to go is the backlight tube and they last
almost as long as a modern CRT. Also there's very little in the way of high
power electronics which are the most common failures in a CRT display.


  #12   Report Post  
Ken G.
 
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I dont know if LCD is more reliable but here is what i can offer .

I work in a salvage store where they buy big loads of costco and other
big chain store returns . Its my job to check all the electronics .
We have always gotten in dozens of CRT tv sets of all sizes .
About 2 years ago we started getting in LCD tv sets and computer
monitors and about a year ago in comes the plasma sets .
I have had the chance now to play with anything from 12`` to 37`` LCD tv
sets and bring a couple home to try out . I bought a 13`` Sharp Aqous
and love it . I was not so impressed with the larger LCD screens
comparing one next to my 27`` tbe set .

LCD screens are different in small ways but if you get one and you are
real picky your eyes will get used to it very quickly
I have noticed anything over 26`` LCD you can notice a downgrade in
picture quality from close up , sitting back they are beautifull . Most
of the 30`` and larger LCD sets all have a clunky receiver you hook to
the screen
I ended up buying a 26`` JVC that came in . It has a brighter and better
picture than the Sharp , Panasonic or Toshiba i tried . It also has all
the electronics and tuner in the screen just plug & go .


Lastly on comparing LCD to CRT .. I have seen very very few LCD sets
broken either out of the box or 2 years old , probably 4 out of aprox
200 . I have however run across about a 25% broken count on CRT and
projection sets .. many of them new out of box .

If the low priced LCD sets are built anything like the low cost DVD
players then we are in trouble ! stay away from samsung !


  #13   Report Post  
David Brodbeck
 
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NSM wrote:
I regard LCD as less reliable and more unfixable. Good luck getting 20 years
out of the LCD model.


Good luck getting 20 years out of a modern CRT, too.

The last batch of CRT monitors we bought from Dell lasted about 3 years
of continuous use before they got too dark. Some plant in China has
apparently perfected the art of putting a layer of thorium on the
filaments that's just thick enough to last the warranty period, but not
much longer.

Even our Sony monitors are going fuzzy after about five years.

They don't build 'em like they used to.
  #14   Report Post  
JANA
 
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CRT sets will last about 30,000 to 40,000 hours on the average. The new LCD
sets will probably last about 50,000 to 60,000 hours.

CRT sets are soon to no longer be manufactured. Support for them will soon
be very limited, if any at all. The picture quality on an LCD set will also
be superior to the CRT set. It is now a question of what you are willing to
pay for.

There are many advantages of the LCD set over the CRT one. It is a question
of, if you want to pay for the newer and better technology. For myself, if I
was to buy a TV set, I would buy an LCD one. This is my personal preference.


Some advantages of LCD sets a

Lower power consumption.
Internally runs much cooler.
Not very heavy to move around.
Takes up a lot less space on a table top.
Does not use very high voltages inside, thus does not accumulate as much
dirt and dust.
Does not emit high amounts of electromagnetic radiation.
No ultraviolet emissions from the surface of the screen.
No X-Ray radiation.
No purity, or convergence errors.
No corner focus problems.
The colour temperature will not drift very much with age.


Some disadvantages:

The front of the screen is more delicate, and is easier to damage
(especially from children).
The viewing angles are more critical than a CRT set.
The contrast ratio is lower, but is still very acceptable.
When out of warranty, and some service is required, it is more expensive.


--

JANA
_____


wrote in message
...
Im in the market for e new "small" TV

I live alone and don't need a big huge TV

I can get a decent 20" analog crt based Tv for abt $150

Or a 19" flat LCD based Tv for abt $700

Im curious if LCD based television have less failure
problems than CRT based ones?

Any advice on this?

I don't mind spending a premium on new technology as
long as it has higher or AS high of reliability as the
older technology. Hence the question.


  #15   Report Post  
 
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CRT sets will last about 30,000 to 40,000 hours on the average. The new LCD
sets will probably last about 50,000 to 60,000 hours.


Well now you've just changed my mind back to LCD! Ha!!

Im concerned abt buying a small LCD tv cause of the
shift to HD sets soon.

Will a current analog LCD tv such as the 19" Dell TV in
link below be obsolete in a few years when the big
switch to HD transmission?

http://tinyurl.com/63bnj

That's why I was thinking of CRT based.... they are so
cheap I can just throw it away if its obsolete in a few
years. No?


  #16   Report Post  
meirman
 
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In sci.electronics.repair on Tue, 29 Mar 2005 20:38:20 -0600
posted:

CRT sets will last about 30,000 to 40,000 hours on the average. The new LCD
sets will probably last about 50,000 to 60,000 hours.


Well now you've just changed my mind back to LCD! Ha!!

Im concerned abt buying a small LCD tv cause of the
shift to HD sets soon.

Will a current analog LCD tv such as the 19" Dell TV in
link below be obsolete in a few years when the big
switch to HD transmission?

http://tinyurl.com/63bnj

That's why I was thinking of CRT based.... they are so
cheap I can just throw it away if its obsolete in a few
years. No?


Don't throw it away. That's incredibly wasteful. Give it to me. I
live alone too, and when I want to get HD, I'll get one tuner that
I'll put where my VCR is now, and use the same distribution system I
have now to send the signal to the tvs I have in most of the other
rooms. (Upstairs: Bedroom, Office, Bathroom. First floor: Living
room, kitchen. Basement: "Club room", laundry room. Attic. I didn't
really a cable outlet in the laundry but it only took about 15 minutes
and cost less than a dollar, so what the heck.

If you don't want to give it to me, give it to Goodwill Industries.

Even if such tuners didn't exist, there will still be people happy to
have an analog tv until the last station is off the air, and after
that they can use them to play dvds and tapes.

Meirman
--
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or not you are posting the same letter.
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I'll get one tuner that
I'll put where my VCR is now, and use the same distribution system I
have now to send the signal to the tvs I have in most of the other
rooms.


What kind of distribution system do you have and how
does it work? You've caught my interest on this
system you have. G
  #18   Report Post  
meirman
 
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In sci.electronics.repair on Tue, 29 Mar 2005 16:16:14 -0500 "JANA"
posted:

CRT sets will last about 30,000 to 40,000 hours on the average. The new LCD
sets will probably last about 50,000 to 60,000 hours.

CRT sets are soon to no longer be manufactured. Support for them will soon
be very limited, if any at all.


But most of them don't break anyhow.

The picture quality on an LCD set will also
be superior to the CRT set.


Will be? But he's buying one now. If he wants to see which looks
better now, he can go to the store and look at each of them.

(Don't look at cartoons btw. They almost always look great. Look at a
complicated picture with lots of little things)

It is now a question of what you are willing to
pay for.

There are many advantages of the LCD set over the CRT one. It is a question
of, if you want to pay for the newer and better technology. For myself, if I
was to buy a TV set, I would buy an LCD one. This is my personal preference.


Some advantages of LCD sets a

Lower power consumption.
Internally runs much cooler.
Not very heavy to move around.


That can mean different things to different people. I though that LED
monitors were light until I actually picked one up. I guess not as
heavy as a crt monitor the same size, but much heavier than it looked.

Takes up a lot less space on a table top.
Does not use very high voltages inside, thus does not accumulate as much
dirt and dust.


I think of it as a dust remover for my house. Once it's in the set, I
never see it again. Seriously, I have a dusty house and for a while I
had smoke film from a badly adjusted oil furnace. Didn't affect the
tvs, except I had to clean the screen of some of them. Not sure if an
LCD screen would have gotten dirty too, but maybe.

Does not emit high amounts of electromagnetic radiation.
No ultraviolet emissions from the surface of the screen.
No X-Ray radiation.
No purity, or convergence errors.


These problems are not common anymore either. I did once walk by one
tv with a big magnet from a hifi speaker, but the built-in degausser
that all color sets have got rid of the problem after a couple weeks.

No corner focus problems.
The colour temperature will not drift very much with age.


Haven't seen any or much of these two either.

And I get all my tvs when they are several years old.

I did buy one new, a 12" color years ago when 210 dollars was the
cheapest they had. AOx something brand. It broke several times and
finally I couldn't fix it anymore. Don't think it was the picture
though. One time it was the turn on relay.

Some disadvantages:

The front of the screen is more delicate, and is easier to damage
(especially from children).
The viewing angles are more critical than a CRT set.
The contrast ratio is lower, but is still very acceptable.
When out of warranty, and some service is required, it is more expensive.


--

JANA
_____



Meirman
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or not you are posting the same letter.
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  #19   Report Post  
Jerry G.
 
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If CRT sets were so reliable, I would have been unemployed years ago!!!
It is the LCD sets that I fear that will put more TV service people
out of work.

In our IT support area, we have been working with LCD monitors for
about 3 to 4 years now (from when they first came out in mass), and
have had very few few failures. The newer ones are even better than
that of a year ago!!!

In the higher end models, they are looking more like the CRT monitors
for their look and they way that they display images. The new 8 ms ones
are actualy faster for the refresh rate, than the CRT monitors. The
fast CRT monitors are about 10 to 12 ms.

I'll stick to the LCD monitors!

Jerry G.
======

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Franc Zabkar
 
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On 30 Mar 2005 02:54:22 -0800, "Jerry G." put
finger to keyboard and composed:

If CRT sets were so reliable, I would have been unemployed years ago!!!
It is the LCD sets that I fear that will put more TV service people
out of work.

In our IT support area, we have been working with LCD monitors for
about 3 to 4 years now (from when they first came out in mass), and
have had very few few failures. The newer ones are even better than
that of a year ago!!!


LCD monitors/TVs may be more reliable (???), but I expect they will
all need a lamp and/or inverter replacement at some time in their
lives. That said, I guess it's a job anyone could do with minimal
training.

In the higher end models, they are looking more like the CRT monitors
for their look and they way that they display images. The new 8 ms ones
are actualy faster for the refresh rate, than the CRT monitors. The
fast CRT monitors are about 10 to 12 ms.

I'll stick to the LCD monitors!

Jerry G.
======



- Franc Zabkar
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TCS
 
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On Thu, 31 Mar 2005 06:05:38 +1000, Franc Zabkar wrote:
On 30 Mar 2005 02:54:22 -0800, "Jerry G." put
finger to keyboard and composed:


If CRT sets were so reliable, I would have been unemployed years ago!!!
It is the LCD sets that I fear that will put more TV service people
out of work.

In our IT support area, we have been working with LCD monitors for
about 3 to 4 years now (from when they first came out in mass), and
have had very few few failures. The newer ones are even better than
that of a year ago!!!


LCD monitors/TVs may be more reliable (???), but I expect they will
all need a lamp and/or inverter replacement at some time in their
lives. That said, I guess it's a job anyone could do with minimal
training.


LCD backlights are too fragile to be replaced. Look at the lamp funny
and it'll break. Ask a company to ship you one and they'll just laugh.

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Jerry G.
 
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The lamp and ballast replacement in the LCD set is a lot cheaper than a
CRT replacement in a CRT type set!

The amount of training and ease of lamp replacement is dependent on the
design of the screen. Many of the newer LCD screen lamps are starting
to not be replaceable. They are becoming an intigral part of the screen
construction. This is to have a greater efficiency, less optical
losses, and less shading problems. This is part of the process for
getting higher amounts of brightness, with more even shading in the low
levels of lumination.

Jerry G.
======

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James Sweet
 
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"meirman" wrote in message
news
In sci.electronics.repair on Tue, 29 Mar 2005 16:16:14 -0500 "JANA"
posted:

CRT sets will last about 30,000 to 40,000 hours on the average. The new

LCD
sets will probably last about 50,000 to 60,000 hours.

CRT sets are soon to no longer be manufactured. Support for them will

soon
be very limited, if any at all.


But most of them don't break anyhow.

The picture quality on an LCD set will also
be superior to the CRT set.


Will be? But he's buying one now. If he wants to see which looks
better now, he can go to the store and look at each of them.



It depends. The geometry, convergence and purity will be dead-on perfect,
something that's just not generally possible with a CRT. The thing I notice
with LCD TV's is that I can usually see some visible pixelation or
compression artifacts, hard to explain it but scenery like blue sky tends to
make it really stand out and to my eye it just generally looks like crap.
The small size is handy though, and for some material the picture looks just
fine. Of course I haven't looked at any high end LCD stuff, just the TV's
they have at Costco and whatnot.


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Tim Mitchell
 
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In article , JANA
writes
CRT sets will last about 30,000 to 40,000 hours on the average. The new LCD
sets will probably last about 50,000 to 60,000 hours.

CRT sets are soon to no longer be manufactured. Support for them will soon
be very limited, if any at all. The picture quality on an LCD set will also
be superior to the CRT set. It is now a question of what you are willing to
pay for.

That's not true, the picture on an LCD set is nowhere near as good as a
good CRT. Try watching a night time scene, you get a clear picture on a
CRT but you can't see anything on the LCD.
--
Tim Mitchell
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Jerry G.
 
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You have not seen some really high end LCD monitors!

Jerry G.
======



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