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Author Topic: NEED A NEW TV........  (Read 3207 times)

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MikeDundee

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NEED A NEW TV........
« on: 10 May 2009, 07:25:18 »

...The plasma is potentially naffed, the screen started to go last Monday, lost picture just see black screen and varying coloured dots, but still has sound, so I am thinking it may be the gases but not sure, have no insurance on it, it is about 4 years old.................Anyone know about these type iof problems on plasma screens?

Incidentally have looked at new screens and plasma screens appear to be cheaper than the LCD screens now, but I would'nt buy another plasma screen would opt for LCD now.
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Marks DTM Calib

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Re: NEED A NEW TV........
« Reply #1 on: 10 May 2009, 07:30:14 »

A wise move.

Its actually rare that the 'gas' goes on the panel.

Its normaly the drive electronics and interconnect that die as these are very heavily stressed (and one of the key reasons why Plasma is to be avoided in the modern market)
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MikeDundee

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Re: NEED A NEW TV........
« Reply #2 on: 10 May 2009, 07:31:46 »

Quote
A wise move.

Its actually rare that the 'gas' goes on the panel.

Its normaly the drive electronics and interconnect that die as these are very heavily stressed (and one of the key reasons why Plasma is to be avoided in the modern market)

Would that potentially be linked to the loss of picture ::)
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Marks DTM Calib

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Re: NEED A NEW TV........
« Reply #3 on: 10 May 2009, 07:32:18 »

Normaly results in lines on the screen etc.
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MikeDundee

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Re: NEED A NEW TV........
« Reply #4 on: 10 May 2009, 07:35:36 »

Quote
Normaly results in lines on the screen etc.

Had one line about inch an a half from the bottom of the screen, had that since last May probably, so potentially a sign that it was on its way out ::)
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KillerWatt

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Re: NEED A NEW TV........
« Reply #5 on: 10 May 2009, 08:01:21 »

Quote
but I would'nt buy another plasma screen would opt for LCD now.
Plasma pi$$es all over LCD, especially when you start going above 42" in screen size.

But anywhoo, english law gives you a 6 year window if you want to argue the toss with the retailer.

The "drive electronics" that someone else referred to is actually called a motherboard, and they can be obtained quite cheaply depending on the make/model.
The only other board you will find inside your set is a power supply.
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Justdave

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Re: NEED A NEW TV........
« Reply #6 on: 10 May 2009, 08:12:36 »

Is it true that plasma TV's have a 'shelf life', the picture fades over a period of time ?
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MikeDundee

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Re: NEED A NEW TV........
« Reply #7 on: 10 May 2009, 08:19:42 »

Quote
Quote
but I would'nt buy another plasma screen would opt for LCD now.
Plasma pi$$es all over LCD, especially when you start going above 42" in screen size.

But anywhoo, english law gives you a 6 year window if you want to argue the toss with the retailer.

The "drive electronics" that someone else referred to is actually called a motherboard, and they can be obtained quite cheaply depending on the make/model.
The only other board you will find inside your set is a power supply.

Well its a 42'' Philips matchline, if it is the motherboard :-/
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Marks DTM Calib

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Re: NEED A NEW TV........
« Reply #8 on: 10 May 2009, 08:27:49 »

Quote
Quote
but I would'nt buy another plasma screen would opt for LCD now.
Plasma pi$$es all over LCD, especially when you start going above 42" in screen size.

But anywhoo, english law gives you a 6 year window if you want to argue the toss with the retailer.

The "drive electronics" that someone else referred to is actually called a motherboard, and they can be obtained quite cheaply depending on the make/model.
The only other board you will find inside your set is a power supply.

Disagree with the plasma/LCD statement, thats not been the case ofr a few years now.

And the drive electronics I am referring to are within the screen section. These are the items that initiate the pre-charge, strike, charge and discharge cycles for the pixels. They consume huge amounts of power and run rather hot. I did a design review on a pioneer IC used in this application and the package was running at absolute maximum pwoer dissipation.....which is not good for longevity!

I would not even consider plasma these days as its stood still whilst the rest have equalled it.

LCD with the emerging LED technology (a few years of good) is the way to go
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KillerWatt

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Re: NEED A NEW TV........
« Reply #9 on: 10 May 2009, 08:45:59 »

Quote
Disagree with the plasma/LCD statement, thats not been the case ofr a few years now.
Viewing angles, response times and the inability to display a true black are just 3 limitations of LCD I can think of right now.

I definately agree that OLED is something else, unfortunately it's not really within the price range of the "average Joe" due to it being so new. Like all technology though, it will drop in price in a couple of years as it starts to get more popular.
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Martin_1962

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Re: NEED A NEW TV........
« Reply #10 on: 10 May 2009, 09:12:45 »

Viewing angles are good, response times are fine and black levels good.

My TV Sony KDL46W4500

VERY GOOD TV
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Martin_1962

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Re: NEED A NEW TV........
« Reply #11 on: 10 May 2009, 09:14:14 »

The W series Sonys started as Plasma worriers and are now Plasma beaters
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Plomien

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Re: NEED A NEW TV........
« Reply #12 on: 10 May 2009, 09:24:55 »

If you have the cash these look rather good
http://www.samsung.com/uk/experience/television/led/ :y
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KillerWatt

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Re: NEED A NEW TV........
« Reply #13 on: 10 May 2009, 09:34:49 »

Quote
Viewing angles are good, response times are fine and black levels good.

My TV Sony KDL46W4500

VERY GOOD TV
178° viewing angle.....yup, that's pretty good.
4ms response time...Plasma's react in less than 1ms with ease.
Black levels on any LCD will never be spot on, because of the backlight.

It's all subjective anyway, because what looks good to one may quite well look like a pile of cack to another.

Audio systems are the same. My neighbour thinks our kit is terrible, and he came to that conclusion after accepting a £100 bet that I could generate enough bass in the living room to make him physically sick.
Give him his due though, he paid up once he was feeling better and his heart had found it's natural rhythm again  ;D
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TheBoy

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Re: NEED A NEW TV........
« Reply #14 on: 10 May 2009, 11:00:04 »

Quote
Quote
Quote
but I would'nt buy another plasma screen would opt for LCD now.
Plasma pi$$es all over LCD, especially when you start going above 42" in screen size.

But anywhoo, english law gives you a 6 year window if you want to argue the toss with the retailer.

The "drive electronics" that someone else referred to is actually called a motherboard, and they can be obtained quite cheaply depending on the make/model.
The only other board you will find inside your set is a power supply.

Disagree with the plasma/LCD statement, thats not been the case ofr a few years now.

And the drive electronics I am referring to are within the screen section. These are the items that initiate the pre-charge, strike, charge and discharge cycles for the pixels. They consume huge amounts of power and run rather hot. I did a design review on a pioneer IC used in this application and the package was running at absolute maximum pwoer dissipation.....which is not good for longevity!

I would not even consider plasma these days as its stood still whilst the rest have equalled it.

LCD with the emerging LED technology (a few years of good) is the way to go
I have to agree, LCD surpassed plasma many years ago in the viewable areas.

The one advantage (also disadvantage) plasma has over consumer LCDs is a glass front - LCD is prone to kids pointing too hard at the screen, and bigger kids losing grip on their Wii remotes ::)

The reliability of LCDs (except mine!!!) is way superior to plasma - how many of us are running 10yr old LCD monitors still, with no problems.  Plasmas tend to start show degradation after 2yrs, and pretty 'dangle berries'ed after 4.  And before everyone with older plasmas pipe up that theres is still as good as the day they bought it, it ain't, and I bet you said the same about your older CRT ;)
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