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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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#1
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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
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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. |
#3
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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
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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 |
#5
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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? |
#6
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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 |
#7
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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
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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. ====== |
#9
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#10
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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
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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
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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
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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
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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
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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? |
#17
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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
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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 -- If emailing, please let me know whether or not you are posting the same letter. Change domain to erols.com, if necessary. |
#19
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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. ====== |
#20
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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 -- Please remove one 's' from my address when replying by email. |
#21
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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. |
#22
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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. ====== |
#23
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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. |
#24
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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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