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more blasphemous plasma rumors

1377 Views 5 Replies 6 Participants Last post by  a. macree
quoted from an Amazon.com reviewer:


"After 23 years with a conventional NTSC t.v. we decided to jump to HD digital. We started reviewing sets about three years ago and found the technology immature, outlandishly priced and dealer information usually wrong. While DLP works well for video presentation projectors, you need a two or three chip set to do away with picture lag, and pictures look pixellated. Hitachi has already announced they are dropping DLP technology. Plasmas STILL suffer problems with burn-in even with picture-shift technology, they often die in 3 or 4 years, can be noisy especially above 4,000' altitude, and are fragile. Gas is gas and it leaks, degrades, has a half-life and despite urban legend gas in plasma tvs cannot be replaced. Dealers lie constantly--one told us that Plasmas now last 16 years!"



it bugs me how ignorant some people are.
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About the blasphemy...

Quote:
Plasmas STILL suffer problems with burn-in even with picture-shift technology, they often die in 3 or 4 years, can be noisy especially above 4,000' altitude, and are fragile. Gas is gas and it leaks, degrades, has a half-life and despite urban legend gas in plasma tvs cannot be replaced. Dealers lie constantly--one told us that Plasmas now last 16 years!
About the 'often die' part. I guess the question is what we're defining as often. 10%? 20%? 50%? It is open for interpretation.


About the '3 or 4 years'. Remember that an item can have a MTBF of 10 years. But in that situation, 40% can die in the first year as long as the 10% more don't happen in the next nine years. Absurd, but it does raise a question in my mind. What is the distribution of failures? Is it a bell curve centered around the MTBF, or is it loaded heavier on the far left hand side of the graph?


About the 'can be noisy especially above 4,000ft altitude, and are fragile'. LOL. I wonder if they'll be putting plasma displays into airplanes and cockpit controls? LOL. Sorry.


About the 'gas in plasmas cannot be replaced'. I knew it! The whole 'donate your plasma for cash' thing had to have been too good to be true.


About the 'one told us that Plasmas now last 16 years'... true! I think. Have plasmas been around that long? But they do last that long. He just didn't say if they'd been used, or if they still operate. ;)
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I wonder how long ago this guy did this review, presently you could counter with numerous arguments that prove these presumption as false. Here's a few I would put forward.


Long Life of Plasma and Failure rate?


Airports around the world have plasma's that are running 18+ hours a day and some have been in place for many years and the latest generation have more doubled their half life. Every News Media and Sports Media have Plasma everywhere you look. Do you think these folks just want to throw money away?


If the failure rate were so great as they allege then why would the Manu have 2-3 yr warranty provided? If this were true they would not so heavily market extended warranties as they wouldn't make any money were the failure % were anything close to what they allege.


To me this is akin to buying a service warranty for a FAX machine - I have a dozen Fax Machines and I've had to make one service call in 12 years - no way would I ever write a service contract on a FAX Unit. Those extended warranties are gravy for Vendors and that is why they are the first thing offered to purchase. Can you imagine the costs if the failure rate were as high as represented by the poster. Yes failure may occur but if it were large factor they would not even be offering an extended warranty - they are building their profit margin there instead and living off other people's money for years. I'm not saying I'm against the extended warranty but if the failure rate were as this person suggests then they wouldn't market a warranty unless it was making them money as they are not their to be socially responsible they are there to SELL anything that makes them money.


Gas replacement? That's old news and by God if your getting a 20 yr half life don't you think you just may want another TV product within ten years or so as the HD tech evolves?


Burn-in - Again old news? If it were a serious issue the 141K members in this Forum would be screaming posts of early failures and Burn-in issues. Most threads address prevention but it is rare to see anyone that has had true burn-in occur. Go through your local B&M and see if you witness any burn-in - they're on constantly and so where is this alleged burn-in?


Altitude Issues?

If you do your homework there are threads that address this area and some can handle it, if your in a gray area then by all means choose an alternate that can fill your needs but most can handle the altitudes where most of us live.


Plasma has been refined over 25 years now, I believe NEC and Fujit were there in the early days over 25 yrs ago. If these things burned out in 4 years or earlier there would be tons of threads screaming bloody murder considering the folks of 4+ yrs ago paid mucho bucks for their TV's and now we sit here with middle class afford-ability. I remember the first 50" plasma I saw at Great Interiors was $25K and the the first I saw at BB it was $15K in store price. We can now get the latest generation Plasma 50's for under $5K and 61" for under $10K.


Just watch a wide screen plasma in HD and it can be jaw dropping experience for the Pio/Panny/NEC/Fujitsu and others.


The PQ and sense of HT is the best - Viewing angles of 175degrees, almost no glare on most models.


This reviewer obviously has a bias against the new HD technologies and needs to brush up on their facts as they match nothing in these forums or current HD technology. They seem to be stuck with stereotype from about 5 years ago and in no way supports his argument with today's tech and customer feedback.


Just my thoughts as if this joker were correct we'de be flaming the Plasma Makers in the thousands after spending that type of money.


This person is clueless!
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Quote:
Originally posted by jmccorm
About the '3 or 4 years'. Remember that an item can have a MTBF of 10 years. But in that situation, 40% can die in the first year as long as the 10% more don't happen in the next nine years. Absurd, but it does raise a question in my mind. What is the distribution of failures? Is it a bell curve centered around the MTBF, or is it loaded heavier on the far left hand side of the graph?
So, are your saying that "statistics" lie? IMO it would be wise to factor in the cost of an extended warranty when you are considering the purchase of a PDP.
"Remember that an item can have a MTBF of 10 years. But in that situation, 40% can die in the first year as long as the 10% more don't happen in the next nine years. Absurd, but it does raise a question in my mind. What is the distribution of failures? Is it a bell curve centered around the MTBF, or is it loaded heavier on the far left hand side of the graph?"


It is alsmost certainly a fairly normally distributed curve. I'd be willing to bet that there is some limited amount of early failures, but hardly as much as the great electronics myth -- if it doesn't fail in the first few months, it'll last for years -- would have you believe.
Quote:
Originally posted by napple
quoted from an Amazon.com reviewer:


1. "...Hitachi has already announced they are dropping DLP technology.

2. "...Plasmas STILL suffer problems with burn-in even with picture-shift technology....can be noisy especially above 4,000'


...it bugs me how ignorant some people are.
Me too. Especially since 1. and 2. above are absolutely true. (Particularly No. 1: DLP has always been major hype-hits on me--like it is all BB and CC guys push, whilst their DLP "open-box" returns litter their aisles)....

Bugs Me Too,

AMc
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