Official Sony Bravia LCD Uneven Backlight/Cloudy Thread - Page 6 - AVS Forum
View Poll Results: Does your Sony 46" XBR LCD suffer from an uneven backlight or cloudy background?
YES, clouds can been seen when dark colors are displayed or when switching inputs 1,294 69.05%
NO, my screen has a perfect, fully even, backlight 580 30.95%
Voters: 1874. You may not vote on this poll

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post #151 of 9118 Old 11-18-2006, 01:10 PM
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More pics, Oct 2006
Backlight 2
Brightness 50



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post #152 of 9118 Old 11-18-2006, 01:49 PM
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Quote:
Originally Posted by budd99 View Post

I'm getting the impression that earlier production models (august) are not affected as much.

Mine is August...46" and I have no problems at all.

I wonder...If they rushed QC on later production units to get more in the pipeline faster due to the increased demand .

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post #153 of 9118 Old 11-18-2006, 01:51 PM
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Well, I was able to convince CC to exchange with me one of their floor models that I was able to clearly see did not have cloudiness in the store.

Well, when I got home I figured what could go wrong now since it clearly didn't have the problem in the store. To my disgust, there were the clouds again! I'm guessing that either it was too bright in CC for me to see these clouds or they just appeared during the transit and handling of the set.

I was ready to return the set at this point, but I recalled that trick of laying the panel flat on it's face to clear it. I figured I would return it anyway if this didn't work. How could it hurt.

To prevent scratching the screen, I actually just tilted the panel with its stand still attached until it was horizontal, but not actually laying it down.

The result - the clouds went away!!!! Mostly. I still see a very faint amount in the lower right hand corner, but this was a major improvement from before where all four corners of my screen were practically light grey.

With these positive results, I tilted my panel once again and held it there for about 15 seconds this time. The screen once again improved, but not as dramatically as the first time. Hopefully, the micro-fiber cloth will be able to remove the rest of the very faint cloudiness at this point.

So there you go. It works! Kudos to Kontai for sharing this info!!!

btw, this set was built in August 2006 - I believe it wasn't cloudy to begin with, but the moving of the screen seemed to stress the panel and cause the clouds to appear - I know that I wouldn't have missed spotting these clouds in the store considering how bright the corners were.
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post #154 of 9118 Old 11-18-2006, 01:57 PM
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sauron- Could you take some pics please?
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post #155 of 9118 Old 11-18-2006, 02:09 PM
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I just read the manual. It said that Do not connect PC via HDMI port. Do you know why? My PC does not have D-Sub but DVI. What happen if I connect PC DVI to HDMI?
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post #156 of 9118 Old 11-18-2006, 02:52 PM
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Quote:
Originally Posted by Rare1 View Post

sauron- Could you take some pics please?

Here are some pictures of my XBR2.

Below - my 46 XBR 2 with the lights on and OTA football - just to prove that it is indeed an XBR 2


My XBR following the laying out flat - shown is a paused DVD during a very dark credits scene between the names popping up


Sorry for the photos being too dark. I don't have photo editing software to brighten this picture. But having all the lights out is the only way I can even see any cloudiness now. (btw - red dot is my camera reflecting)

I only wish I had some pictures showing how bad it was when I just brought it home.

But as you can kind of see (I stress kind of see) - there is some very minor cloudiness left. However, the major bright spots I had on all four corners are pretty much gone.

Next - to get a micro-fiber cloth and rub those minor clouds out. Though, when watching my Sci-fi scenes in space now, I don't even notice it any more.

This isn't a perfect solution, but it's good enough for my eyes. Sure beats trying to run around getting a good set which doesn't appear to exist if it was made in October.
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post #157 of 9118 Old 11-18-2006, 03:05 PM
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Looks pretty good.

What are your settings for:

Brightness
Powersave
Backlight

??

Thanks!!
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post #158 of 9118 Old 11-18-2006, 03:09 PM
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Quote:
Originally Posted by Rare1 View Post

Looks pretty good.

What are your settings for:

Brightness
Powersave
Backlight

??

Thanks!!

Brightness = 36
Powersave = Low
Backlight = 3
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post #159 of 9118 Old 11-18-2006, 03:37 PM
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Thanks,

The only way I can get mine to go away, is

Brightness = 60
Powersave = High
Backlight = anything

And at that point the image looks really washed out
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post #160 of 9118 Old 11-18-2006, 05:06 PM
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Quote:
Originally Posted by Rare1 View Post

Thanks,

The only way I can get mine to go away, is

Brightness = 60
Powersave = High
Backlight = anything

And at that point the image looks really washed out

Well, Rare1, I think it's now your turn to tip your screen and see what happens. The cloudiness in your photos do look rather extreme compared to mine.

It's strange how the cloudiness tends to be worse on the right side of the screen based on the pictures I've seen as well as the two sets I've had at home.

Let me know what you decide to do.
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post #161 of 9118 Old 11-18-2006, 05:54 PM
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Quote:
Originally Posted by sauron256 View Post

I was ready to return the set at this point, but I recalled that trick of laying the panel flat on it's face to clear it. I figured I would return it anyway if this didn't work. How could it hurt.

To prevent scratching the screen, I actually just tilted the panel with its stand still attached until it was horizontal, but not actually laying it down.

The result - the clouds went away!!!! Mostly.

sauron256,
I'm glad that my destressing technique had a positive effect for you. It helped validate what may seem like a crazy idea to some.

More specifically, what I did to my set (again a 32" Sony LCD) was to lay it face down on a large table, with the pedestal overhanging the edge of the table, of course. I left it like this overnight for maximum destressing. I put some bedsheets on the table to prevent scratching of the front bezel. Don't use something thick (e.g. blanket) as that will directly contact and put pressure on the screen. I then carefully stood the TV upright.

Once you reduce the clouding to acceptable levels, try not to physically touch the TV since it may restress the screen. I've haven't touched my TV in ages; I always use the remote to operate it.

Oh, to the people posting pics of their severe clouding/uneven backlighting issue...
PLEASE try to do so only when the set is displaying a TV/DVD scene with dark or black backgrounds. Otherwise, the "cloud doubters" will continue to ignorantly assume and post that the problem exists only when viewing a blank input, which of course is B.S. From what I've seen, mentioning in words, no matter how clearly, that the clouding issue also appears during TV/DVD viewing doesn't seem to get through their thick skulls. I think too much HD viewing may have affected their reading comprehension.
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post #162 of 9118 Old 11-18-2006, 07:25 PM
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Quote:
Originally Posted by kontai69 View Post

sauron256,
I'm glad that my destressing technique had a positive effect for you. It helped validate what may seem like a crazy idea to some.

More specifically, what I did to my set (again a 32" Sony LCD) was to lay it face down on a large table, with the pedestal overhanging the edge of the table, of course. I left it like this overnight for maximum destressing. I put some bedsheets on the table to prevent scratching of the front bezel. Don't use something thick (e.g. blanket) as that will directly contact and put pressure on the screen. I then carefully stood the TV upright.

Once you reduce the clouding to acceptable levels, try not to physically touch the TV since it may restress the screen. I've haven't touched my TV in ages; I always use the remote to operate it.

Thank you for your insight and advice, kontai69. I'm so relieved that my cloudy days are behind me now . You have saved me from having to deal with CC about another returned XBR 2 set.

I'll very likely follow your long term distressing method one of these days to see if I can get rid of the rest of the clouds. Though, to be honest, I'm pretty darn happy the way it is now so I may just leave well enough alone.

It'll be interesting to see what the long term effects of this method of fixing the cloudiness will be. From your results, it looks pretty good.

Cheers and thanks again!
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post #163 of 9118 Old 11-18-2006, 08:33 PM
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Why cannot connect a PC to this TV via HDMI?
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post #164 of 9118 Old 11-18-2006, 10:02 PM
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when I try this with my Vizio I'll report back the results

btw was the TV turned when you placed it face down or was it off with even the plug unplugged?
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post #165 of 9118 Old 11-19-2006, 02:18 AM
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I have a 46" XBR3 without the clouding issue. The only "imperfection" I have is a "stuck" red pixel on the bottom left corner of the screen. Not teribly bothersome unless I am staring at the pixel less than 3 feet.
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post #166 of 9118 Old 11-19-2006, 04:10 AM
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Hi,
has anybody got it fixed? I call technical support and somebody from a company called QualxServ called me (I just got a 40XBR2 with the same clouding stuff, october 2006), after describing the problem several times, they got back to me saying that a Sony specialist told them that the part to exchange is a DE2 conversion board, so the tech guy is going to recieve that part and is going to replace it on my tv. I just have the feeling that it's not going to work, and that they really don't know what they're doing. To make things worse, I bought it directly from Sony Style (2 years no interest no payment) but I threw the box, it was either the box or me to stay in the apartment. Now to get it returned to Sony I need the box, and nobody sells a box with those dimensions, so I'm thinking in buying it at Best Buy, and return it with that box. I'm not so sure if I should wait for the technician and loose my 30 days return policy, and with Thanksgiving who knows how long it's going to take.

Did anybody hear about that DE2 board?
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post #167 of 9118 Old 11-19-2006, 07:09 AM
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Quote:
Originally Posted by wtfer View Post

wait wait wait... so you just unscrewed the back of the TV panel & re-screwed it back on & that FIXED THE UNEVEN BACKLIGHTING?

why isn't everyone on this thread doing this right now?

Is voiding your warranty (if the manufacturer can prove it) reason enough?
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post #168 of 9118 Old 11-19-2006, 07:10 AM
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Quote:
Originally Posted by sauron256 View Post

To prevent scratching the screen, I actually just tilted the panel with its stand still attached until it was horizontal, but not actually laying it down.

The result - the clouds went away!!!! Mostly. I still see a very faint amount in the lower right hand corner, but this was a major improvement from before where all four corners of my screen were practically light grey.

With these positive results, I tilted my panel once again and held it there for about 15 seconds this time. The screen once again improved, but not as dramatically as the first time. Hopefully, the micro-fiber cloth will be able to remove the rest of the very faint cloudiness at this point.

Now I can see that those returned XBR2/XBR3 sets being laid down at Bestbuy, Circuitcity layway to relieve the stress. just joking.

Glad that this method worked for you. Hope many others may be able to solve this issue.

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post #169 of 9118 Old 11-19-2006, 07:12 AM
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I went to bestbuy last night to look at there sets, the xbr3 looked fantastic and it was in a dark area and as far as I could tell the xbr2 looked great as well. I showed them the pictures of my set and they had never seen anything like it before.

Here is a pic with source displayed. This is backlight 2, brightness 36

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post #170 of 9118 Old 11-19-2006, 09:26 AM
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Hey - those 'Clouds' - sure they aren't distant galaxies...?





Seriously, with a clean shot like this, I don't think any more 'proof' is needed. We got ourselves a QC issue.

If the 'de-stressing' techniques in the previous posts are in fact helping to ameliorate this clouding issue, then Sony's got an avenue or two of recourse:

- Set-torque on fasteners to a reduced value.

- Review packaging specifications for these panels and correct as necessary to reduce substrate contact and/or tension.

- Review subframe design for the panel itself and reinforce or redesign to isolate and/or eliminate direct pressure issues surrounding packaging/handling.

You cannot expect the end-user to not 'touch' his component after initial purchase and set-up. This hardware should be designed to be moved at-will, as frequently as the end-user chooses without affecting the picture quality. End of story -
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post #171 of 9118 Old 11-19-2006, 11:52 AM
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I exchanged, got another and same problem.

Now I am trying the laying flat method. I will update my results. This sucks cause this tv has the best feature set for me, but I cannot live with these "clouds"
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post #172 of 9118 Old 11-19-2006, 11:59 AM
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What does Sony service say to everyone about this problem? They can not still be playing dumb about it. I would love to get one of these sets, but I think I should wait.
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post #173 of 9118 Old 11-19-2006, 12:06 PM
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"I exchanged, got another and same problem.

Now I am trying the laying flat method. I will update my results. This sucks cause this tv has the best feature set for me, but I cannot live with these "clouds"
_________________________________

The Star Wars intro photo you posted is all but irrefutable evidence - and it Sucks big time, because this is otherwise a great panel. Perfect size and elegant, minimalist design.

Somebody else here surmised that this might be a result of a 'hurried' mfg. process, perhaps due in part to market timing and thus the need to 'show up on schedule'. And in the process, perhaps the fasteners/screws got tightened a bit too much? Who knows.

Wish you the best of luck and very curious as to your findings post back-panel 'de-stressing'.
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post #174 of 9118 Old 11-19-2006, 12:33 PM
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Quote:
Originally Posted by The Mochi View Post

Somebody else here surmised that this might be a result of a 'hurried' mfg. process, perhaps due in part to market timing and thus the need to 'show up on schedule'. And in the process, perhaps the fasteners/screws got tightened a bit too much? Who knows.

Wish you the best of luck and very curious as to your findings post back-panel 'de-stressing'.

What bothers me is that the previous year's 46 inch XBR 1 model does not have this problem. What has changed? With the way Sony has been handling this problem so far, I'm guessing we may never know.

This is probably a case of Sony fixing something that wasn't broken to make it "better". Look at the results!

Does anyone know if the XBR 1's were made in Mexico or Japan?
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post #175 of 9118 Old 11-19-2006, 12:41 PM
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Quote:
Originally Posted by sauron256 View Post

What bothers me is that the previous year's 46 inch XBR 1 model does not have this problem. What has changed? With the way Sony has been handling this problem so far, I'm guessing we may never know.

This is probably a case of Sony fixing something that wasn't broken to make it "better". Look at the results!

Does anyone know if the XBR 1's were made in Mexico or Japan?

How long did you leave yours face down?
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post #176 of 9118 Old 11-19-2006, 04:12 PM
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Quote:
Originally Posted by Rare1 View Post

How long did you leave yours face down?

I left mine face down for about 15 minutes. I'm too paranoid to leave it down over night.
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post #177 of 9118 Old 11-19-2006, 04:18 PM
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I'm starting to get fed up with Sony's unresponsile behavior, and to ignore us after spending so much on a defective panel. I'm going to contact a consumer lawyer and see what are the options. Anybody up for it?
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post #178 of 9118 Old 11-19-2006, 04:56 PM
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Quote:
Originally Posted by Rare1 View Post

I went to bestbuy last night to look at there sets, the xbr3 looked fantastic and it was in a dark area and as far as I could tell the xbr2 looked great as well. I showed them the pictures of my set and they had never seen anything like it before.

Here is a pic with source displayed. This is backlight 2, brightness 36


If you haven't already please call Sony customer support and ask to speak with a technical specialist. Try and get someone you can e-mail your photo too. That's the best picture yet showing how crappy these sets can look.
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post #179 of 9118 Old 11-19-2006, 05:04 PM
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I just want to reiterate to everyone that the specialists I have spoken with at Sony have been great. I honestly think that they are just finding out about the issue. I've e-mailed them photos of my set and a couple others. I've also e-mailed links to threads on this site showcasing and describing the backlight problem.

I haven't read a lot of posts saying that someone has got ahold of a technical specialist for the XBR2. If you've talked with someone post here and let us know how it went. They're sending me a replacement set and capturing my problematic 46XBR2 to take a look at it. I'm expecting it the 21st or 22nd. I'll post the results. Lets hope they're good.
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post #180 of 9118 Old 11-19-2006, 05:22 PM
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I called and talked to a tier 2 specialist. They were aware of the problem and said there were a couple sets on the engineers bench.

I offered to send pictures and they gave me some generic email. Since I was within 30 days they told me to exchange at the store.

Now I am on my second unit with the same problem. I just had it lying down for a couple hours and am warming it up to see if there was any difference.
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