Official Sony HX850 Owner's Thread (46HX850, 55HX850) - Page 46

Thanks, but just to be clear, I don't see any problem in real content or on a solid gray screen of any luminosity.; the latter are correctly tinted with no hint of the purple semicircles at the bottom. It's only the 1x1 pixel checkerboard that gives results as depicted in my photo. I do see a tiny hint of it with a 1x1 grid. I see none of it with a 2x2 pixel checkerboard. It is... Strange.

I wish I hadn't stumbled upon the 1x1 checkerboard pattern. I think it's just a pathological case that will never be a problem unless I do something weird like run an old OS that uses a simulated gray background in a VM on the TV. I'd still be interested to hear what others see when displaying the pattern, which is in AVS709HD as I previously described.

Darn it, just received a mail from my Distributor that the kdl-55hx850 is canceled here in Switzerland and can't anymore be ordered
I wanted this tv really, damn.
Time to start my tv selection again

Greatest lcd/led!

what Sony 3D glasses are folks using with the HX 850?

ps3 glasses

What is currently the best 55" alternative to the HX850 in regards of 2D image Quality and around same price range?

As I need to find a new one, now that the 55HX850 isn't anymore deliverable.
Edited by patoberli - 1/17/13 at 1:53am

They're still readily available over here in aus.
I just walked into a retailer yesterday and they have all sizes still in stock. Maybe you can get it shipped?

It sucks that I cant get the es6900 over here though
I might ship it over from the uk

Didn't realize supply was so tight until I went to BestBuy last night to buy a 55HX850. They only had a demo in the store and no availability online. Fortunately across the street was hhgreg and they had only one which I eagerly purchased. Now to set it up, calibrate and decide on what glasses to purchase. Looking forward to acquire any great tips that can be found in this outstanding forum.

Uh oh then! I was waiting til the end of this month to get a 46" at Best Buy (have a lot of reward points saved up) but it is sounding more and more like that could be it for stocks.

The BB website still shows it available for pickup at my local store, after a seven day wait for delivery but I'm suspecting if others can't get it, it probably won't be any different at my local store.

I know it has already been asked but is there another TV close to as good as this one (can't be bigger than 46" screen as the physical space is limited by two windows)?

How HX850 perform in fast scenes (considering motion, halo effects, sharpness, dithering) and fast sport games like GT ? Looking for 55" flatpanel mainly for watching footballl and playin games and I wonder If this Sony will be a good choice for this

I found one dead pixel on my set last night. I was looking for dse up close and saw it. It was on a solid background. Fortunately its only noticeable at <12" away so i dont think i should return the set when nothing else is wrong. Esp since there are none left and would have to wait for next years models at a higher price.

Either way i have 27 days left to decide

As you can see its almost unnoticeable. This was taken about 2-3 inches away with my iphone.

If it's a dead pixel that can't be seen in real content at normal viewing distances, I for one would eventually come to accept the imperfection and put it out of my mind. It's a rare set indeed that's not going to have some little problem, and it's always risky to return when the reason for return is not a big problem. I think it would be wise to live with it for a while as you implied. OTOH, our first EX500 had a stuck bright green pixel well in the middle of the screen, and it did regularly show up in real content (e.g. in dark hair), and I sent that set back within a week. The replacement was as perfect as any of these sets can be, with just some minimal uniformity irregularities. (But it died eight months later due to faulty power board, board replaced under warranty at home within two weeks. Still going strong a year later.)

ETA: I did return an EX645 before buying the HX850. The EX645 had bad, uncorrectable flashlighting almost into the middle of the screen and horizontal banding plus DSE that I was noticing literally every few minutes in everything I watched. That was not a good one, and in fact it was bad enough that I didn't even want to try another sample.
Edited by tima94930 - 1/17/13 at 11:28am

But remember, a dead pixel is much more serious than a stuck or flashing pixel. A dead pixel (out on all colors) will never come back to life and many have had one dead pixel develop into strings or clusters down the road. Less chance of that happening with stuck or flashing and those sometimes come back to life as well.

has anyone tried to fix the corner edge light bleeding?

like unscrewing the screws in the back panel and tightening them not too tight or even taking the cover off and doing it on the LED module screws?

or anything else to that matter? let me know thanks!

I do have a 3 year premium service plan if something worse were to happen.

Also i think its a stuck red pixel. On a red screen it is impossible to see.
Edited by Danediz - 1/17/13 at 11:41am

I'd say if it you find yourself distracted by it or compelled to look for it.... then take it back. If you don't notice it and or it does not take away from your enjoyment, as long as you have the warranty and it covers pixel failure, you should be OK..... but check your warranty to make sure it covers pixel failure.

That doesnt work i dont think. My set has 0 flashlighting even with dynamic led off.

Nope but I'd also love to hear about this. My 3rd Hx850 is Schedule to be delivered on Saterday. The first one was returned because of flashlighting in the bottom 2 corners visible even with Led Dynamic set to Standard and backlit set to minimum. Second one has the same issue (a bit differnet but the same) so They are delivering the 3rd set and taking back the 2nd one.

This is my last exchange (I guess, don't think the store will continue to just exchange them until forever) so if the issue remains, I'll have to decide if I keep it anyway (and then maybe try to work with Sony for fixing it) or give up on the TV.

Seeing pictures by some people here with no flashlighting in their corners creates a lot of envy on my side.

Well you're Lucky which isn't all our case.

Flashlithing is of assembly issue. The fact that you have nothing and we have proove this. The panel can be good to have none. My theory, based also on ready about flashligting on other models by other people on this board in the last few years) lead me to believe that it's created by the TV being assemble with too much pressure done at the corner points. Most likely, screws being too tight. I've read one, with picture proof on this forum, that someone last year or the year before, who ended up finding and loosing the screews on his TV in the corners producing the flashlighting and it made a significant improvement.

I have no clue on this TV is assemble, but it's possible that the same thing could be done. I highly doubts that the screw we would need to loosen up is the ones we see in the back of the TV. We would prograble require to remove the back panel and then find the right screen and loosen them a bit (probably just a quarter turn).

Unfortunately, doing so would possibly void our warranty.

A couple of things I have learned about flashlighting from my LED experiences in the past, but not necessarily pertaining to this model as I've had edge lit and not full array until my Sony arrives next week.

Flashlighting in any of the four corners often diminishes greatly in a short amount of time (a few days to a week or two depending on how much the set is used.... some people have left a set on for a couple of days and it resolved itself).

Have you tried using back lighting at all? This sometimes diminishes the perception of flash lighting as well, as improving the overall picture quality in many cases.

IME, a dead (dark) pixel is far less likely to be noticed at normal viewing distances than a stuck (bright) pixel. I've also never seen a defective pixel of any kind come back to life. My experience with "pixel fixers" is that none of them work. My experience with bad pixels multiplying is that I haven't seen it. The only thing I've seen multiply are 3" rows of flickering pixels, but that was due to a bad TCON board in my W4100, which is looking like a very common failure mode for that vintage TV, which I've posted on recently in other threads. In any case, I would recommend taking a macro photo of the defect to better determine what it is and to help document any changes over time.

Its not noticeable unless i get a foot away from the tv. Considering how i have 0 flashlighting and very little dse i dont think i want to take it back and wait for another tv this march that WILL have flashlighting that is def noticeable at normal viewing distances.

How do I look for DSE?

D
Dont. Ignorance is bliss

Guibs -

I agree that it is the screws inside the back panel. Mainly the ones holding the LED module. How would they know its been unscrewed and opened up? I see no stickers or anything.




Also I have had literally 6 sets. First three had a dead pixel that was viewable in anything. Also had edge bleeding and some banding/dse but by far the best out of other tvs i have tried.
The next three sets all looked the same so I stuck with the one that i have been using since it has not had any 3d problems/ restart problems/ dead pixels. Only edge bottom corner bleeing and minor banding/dse.

I think danediz has gotten lucky and I envy you.

I have had March, Nov, Nov, Sept, Sept, Sept manuf date and surprisingly the March is the best for me

Lucky for flashlights but got a dead pixel. At least i cant see it unless im a foot or 2 away and looking for it.

what is your manuf date.

curious

March

I'm wondering if Sony is quite aware of the manufacturing QC issues they've been having and has scrapped the HX850 early to focus on the HX950 and upcoming models.

I'm starting to think they may launch the 2013 models early.