Official Sony KDL-55W900A Owners Thread - Page 163 - AVS Forum
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post #4861 of 4862 Old Yesterday, 05:54 PM
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Originally Posted by oxygen7 View Post
Hi guys!

I’ve finally bought Sony 55w905a a week ago. I’m glad that I’ve taken 55 inch version instead of 46. Now I think anything smaller than 55 won’t be satisfying for me).

For now I want to say that it definitely has got dse, banding and some clouding at corners. If it wasn’t for the price of 1200$, I would probably return it.
Viewing angle is very limited and you really have to sit directly in front of it, move 30 - 40 cm to the side and you get lighter blacks on the opposite side of tv.

What really made me happy about this TV is it’s impulse mode and low input lag, compared to my old Mitsubishi 930sb crt monitor it’s almost as fast.

I have compared this 55w905a side by side to other 4 display devices I've currently got: Mitsubishi 930sb CRT monitor, Benq gw2760hs a-mva monitor, Samsung 40b530 spva tv, Samsung 40eh5300 spva tv.

And after comparison I'm not happy with this Sony TV color reproduction.
Green color at 100% saturation is obviously not fully saturated. If you turn live color to low, it becomes fully saturated, but much shifted towards blue, which makes grass look a little unnatural.
Blue is undersaturated just a bit but it's hard to notice.

But what really disappointed me is Yellow!! It is definetly undersaturated too much, and nothing can help it. I've tried changing every single option in the menu in every mode. Even increasing color setting to the max did nothing to it.
I've even got into service menu and tried to change white balance, no luck.
All my other display devices displayed good saturated yellow.
I've added photo comparison to Benq gw2760hs va monitor(it's to the left with 55w905a to the right).

All I've said about colors can be seen in hdtvtest review, except yellow undersaturation looks much more dramatic than seen on their color scale.

It is very disappointing that a TV priced 3000$(when sales began) and having this widely advertised Triluminous tech actually can't reproduce colors as good as cheap old Samsung 40eh5300 spva tv (400$).

Does anybody know a way to fix this undersaturated yellow issue? maybe there is some setting in service menu I haven't found?
Does updating firmware change color reproduction in any way?

For now I think that it just can't reproduce saturated yellow due to this Triluminous tech.

First the undersaturated yellow your seeing is not the fault of the Triluminous tech. You paid $1200? I agree with turnbowm I'm also guessing it was an open box item. My W900 dosent have undersaturated yellows so what I am thinking it may be the settings your using or something may be wrong with the tv itself I have no clue. But what I do know is again its not the Triluminous techs fault that your seeing the yellows you are. Its got to be something else.
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post #4862 of 4862 Old Yesterday, 06:16 PM
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Originally Posted by turnbowm View Post
^ At that price, I'm guessing that it was an open box item. You might want to start by doing a factory reset and go from there.
Yes it was. Of course the first thing I did was factory reset. To me it seems to be not just this single unit problem, I've checked another unit in another store, and it seamed to have the same problems.

steve1971
You have to compare it with another display to see the difference, when viewed alone, 100% yellow might seem fine.
The photo I did isn't very accurate, the difference is actually not that much dramatic.

There is another photo, some other guy did with his 55w905a on the left http://fotkidepo.ru/?id=photo:904646 . It's not a clear representation of what i'm seeing, but at least close.

Here is what i'm trying to explain: http://www.fullhd.gr/images/stories/...inema2/cie.jpg . That's a gamut of 46w905a, it shows that if life color set on low, green is shifted towards blue and yellow is slightly undersaturated. In case of life color off ( http://www.fullhd.gr/images/stories/...inema1/cie.jpg ), green is just undersaturated and so is yellow.
But on 55w905a these problems are much more pronounced.
I'm trying to find a way for fix it somehow, it actually may be impossible to fix.
Maybe there exist some custom firmware for this tv or some kind of option in service menu for color adjust?

Last edited by oxygen7; Yesterday at 07:00 PM.
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Sony , Sony Bravia 55 Inch Led Tv 3d Support Bravia Hx850 Kdl 55hx850 , Sony Xbr 55hx950 Bravia Led Hdtv , Sony Kdl 55w900a 55 Inch Led Hdtv
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