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Samsung LE40 M868BD Dark patches

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Kilroys:

--- Quote ---In order to produce an apparently even illumination (if you're lucky) a translucent plastic
diffuser plate are placed in front of the ccfl tubes to spread out the light.
Unfortunately, as lcd tv's do get quite hot internally, these plates can become discoloured by heat.
This is a design/ manufacturing defect and don't let the manufacturer
try to tell you otherwise.
As the backlight is an integral part of the lcd screen the whole screen would need
to be replaced - I have replaced many for this problem -
it is actually well known and quite common.
http://www.avforums.com/forums/lcd-led-lcd-tvs/1061134-marks-inside-my-lcd-tv-screen.html
--- End quote ---

I agree.
It is the panels, have seen it on Sony, Sharp, Samsung and so so on

Spanners:
 :c017:
Thanks Kilroys. I hadn't done a search on other makes for the same fault. I couldn't find many Samsungs with the same promlem.
This gives me more amunition to fight them with.
Are the LCD panels all made by the same company? Like some parts on cars are the same for different manufactors?

Turnip:
Hi Spanners,

In a word - No,

Drive an antique Ford Sierra auto meself, nothing like a Trabant and as cardboard doesn't rust, think to go Ebay - Chris.

obagama:
Hi Spanners,

I have come across this and its definately the ccfl tubes (backlight).

What I did for a fix is that I bought a cracked 40" and used the backlight for mine.

you can buy them on ebay for peanuts compared to buying a new screen.

Very easy to change since you only remove 6 screens from the front of the screen itself after dismantling the TV.

Hope this helps

Cheers

Spanners:
Just for information..
Went back to the retailer who supplied it 3 years ago and they took it away and replaced the screen... They charged £60 but then refunded it when they saw it wasn't a problem caused by myself..
Was expecting a fight, but they were really good..
Gotta love the Sale Of Goods Act..

Thanks all who offered their diagnosis..

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