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Official Sony HX850 Owner's Thread (46HX850, 55HX850) - Page 6

post #151 of 1970
5/30/12 at 12:01pm
Quote:
Originally Posted by fragas View Post

Rajivr, yes I am having same issues like you are experiencing vertical darker lines . i got the set exchanged and second one has severe flashlight issues at the sides but not dark vertical lines, and think is a quality control issue that sony have to address asap. the second set is going back for a third and last if is not correct it I will get different brand.

That is what I am afraid of, as much as I hate DSE, this set doesn't have flashlighting issues. Is your 2nd set DSE free or is it not as bad as 1st. Wonder what is the probability of getting an issue free set! I am torn on what to do.
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Gear mentioned in this thread:

post #152 of 1970
5/30/12 at 3:05pm
No problem MH22! Just to reiterate from my EX720 posts: YOU MUST TURN OFF LIGHT SENSOR!!! It makes the picture much much dimmer. Currently I am running with all ECO features OFF, but I do like the look of Power Saver Low/Backlight 5.

I have noticed some DSE. Little dark streaks occasionally during both TV and Xbox, just like I had on my EX720. They are not too annoying and are less noticeable than on my EX720. When playing Forza 4, they occasionally catch my eye when the bright blue sky pans. Oddly, when I look directly at them, they are less visible.

Impulse is like that too. When you look right at it, you can't really see the flicker, but when you look out of the corner of your eye, you can.

Flashlighting is not visible with Dynamic LED ON, but very visible with it off. You can also see blooming sometimes with Dynamic LED ON. It's very minor however, and probably less visible with low backlight settings (i like my TV bright). I have also seen some video games "fool" the Dynamic LED, where the brightness will visibly change in ways it should not. It's not perfect, but as a trade off for better contrast and no flashlights, it's excellent.
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post #153 of 1970
5/30/12 at 3:30pm
Rajivr the second set is free of DSE, but the flashlight issue is very bad in both sides of the panel.
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post #154 of 1970
5/30/12 at 11:48pm
Quote:
Originally Posted by bitterkevin View Post

No problem MH22! Just to reiterate from my EX720 posts: YOU MUST TURN OFF LIGHT SENSOR!!! It makes the picture much much dimmer. Currently I am running with all ECO features OFF, but I do like the look of Power Saver Low/Backlight 5.

I have noticed some DSE. Little dark streaks occasionally during both TV and Xbox, just like I had on my EX720. They are not too annoying and are less noticeable than on my EX720. When playing Forza 4, they occasionally catch my eye when the bright blue sky pans. Oddly, when I look directly at them, they are less visible.

Impulse is like that too. When you look right at it, you can't really see the flicker, but when you look out of the corner of your eye, you can.

Flashlighting is not visible with Dynamic LED ON, but very visible with it off. You can also see blooming sometimes with Dynamic LED ON. It's very minor however, and probably less visible with low backlight settings (i like my TV bright). I have also seen some video games "fool" the Dynamic LED, where the brightness will visibly change in ways it should not. It's not perfect, but as a trade off for better contrast and no flashlights, it's excellent.

Ok. So it's my third day with the HX 855 and I'm beginning to see more things I don't want to see. I have these dark vertical lines but not as prominent, yet. HD picture is still looking really sharp, depending on the source and type off transfer (movies). Gaming is still not that great. It's like with the SD picture, it feels like images projected on glass thats uneven and not a direct clear picture. I wish there was a way around this.

And I have an issue with brighter objects, like white shirts, collars on white shirts, lights, lamps and explosions crushing to early. This happens to a bright sky as well it turns into a crushed blinding white that's really ugly.

I found a strange thing to. Or maybe I don't get it. But if I have the same settings on two different scenes (the ones you choose in the menu) and the picture brightness/backlight look can be miles apart. And I have rechecked, the settings are the same. Any thoughts on that?

And one last thing, the edge local dimming. Even with very low backlight/brightness settings: if theres just one little bright object on a black background, like the play icon in the lower left corner when playing a bluray or the loading icon in the top right, the whole local dimming zone would light up grey. it's like the panel can't retain it's blackness. Maybe the same problem as the above with crushing brighter objects.

If I don't get a good SD or gaming picture after tweaking it some more, I'll return it. Maybe I'll wait for the 955. And then I may win this lottery... But what are chances...

Or should I go and by a 21" Goldstar.... Oops, I mean LG.
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post #155 of 1970
5/31/12 at 2:27am
Quote:
Originally Posted by bitterkevin View Post

No problem MH22! Just to reiterate from my EX720 posts: YOU MUST TURN OFF LIGHT SENSOR!!! It makes the picture much much dimmer. Currently I am running with all ECO features OFF, but I do like the look of Power Saver Low/Backlight 5.

I have noticed some DSE. Little dark streaks occasionally during both TV and Xbox, just like I had on my EX720. They are not too annoying and are less noticeable than on my EX720. When playing Forza 4, they occasionally catch my eye when the bright blue sky pans. Oddly, when I look directly at them, they are less visible.

Impulse is like that too. When you look right at it, you can't really see the flicker, but when you look out of the corner of your eye, you can.

Flashlighting is not visible with Dynamic LED ON, but very visible with it off. You can also see blooming sometimes with Dynamic LED ON. It's very minor however, and probably less visible with low backlight settings (i like my TV bright). I have also seen some video games "fool" the Dynamic LED, where the brightness will visibly change in ways it should not. It's not perfect, but as a trade off for better contrast and no flashlights, it's excellent.

I can't use impulse at all. The picture goes nuts. I understand the flickering thing is used to get a more "film" look. But it's hardly supposed be that unwatchable as on my set. It's terrible. And even though I wouldn't use it, maybe it's an indication that something is wrong with the tv.
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post #156 of 1970
6/1/12 at 3:15pm
Something may be wrong then. My picture doesn't go nuts, it just looks like it's on Backlight 2, and the flicker is noticeable. I was going to suggest to you to try Motionflow Clear, since that improves contrast, improves panning, and takes the edge off the whites, but you may have a more serious problem. Last night I was using Motionflow Clear/Backlight 8 and enjoying it. I crank the backlight up because the whites become grayish, and I like my whites white
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post #157 of 1970
6/2/12 at 4:23pm
Got my 55HX853 Friday and so far i am loving it.

Currently using these settings posted on Avforums review of the Sony.

Quote:


Scene: Movie
Picture
Backlight:3
Contrast: 89
Brightness: 49
Color: 49
Hue: 0
Color temperature: Warm 2
Sharpness : 20
Noise reduction :Off
Dot noise reduction: Off
Reality Creation: Off
Smooth gradation: Low
Motionflow: Off/Clear
Film mode : Auto 1
Black corrector : Off
Adv. Contrast Enhancer: Off
Gamma: Default
LED Dynamic Control: Standard
Auto Light Limiter: Off
Clear White: Off
Live Color: Off
Detail Enhancer: Off
Edge enhancer: Off
R Gain: -2
G Gain: 0
B Gain: -8
R Bias: 0
G Bias: 0
B Bias: 0
Eco: Off

These were for a evening/night time type environment and gave a peak light output around 35fL.

DISCLAIMER: Try them but don't expect them to be right for your panel. Wide tolerance components can and does often mean that fairly large variances between individual TVs is very common

Look good to me for night time viewing and even daytime viewing, not much sun here in the UK though.

Cheers

Aaron
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post #158 of 1970
6/2/12 at 4:28pm
Will pick like this one soon!!
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post #159 of 1970
6/3/12 at 4:50am
Well I picked up a 46" HX850 a couple days ago. Couldn't decide between the one I got or the 50" Panasonic GT50. Chose the Sony because of more flexibility in the picture settings and figured I could always tone down the settings so it doesn't look as it does when you see it at the store in retail or vivid mode. Plus my last TV was a 40" Sony XBR1. Still working great and a great picture for a 1st generation LCD. Anyway, I have a couple questions and a couple impressions. Firstly, since this is my first LED I guess there are some things I need to get used to. I did tons of research so I know the pros and cons of all the different HDTV technologies. Let me first say I like the TV but I'm shocked by how narrow the "sweet spot" of the viewing area is. For me, a foot or 2 to the left or right of center and the darks get washed out from about the edge of the bezel to about a foot in. I know this is because it is edge lit. Second, I love the color reproduction. I've tried some of the settings listed on this thread and I found them to be way too dull, dark and warm for my taste, but to each his own. I've found I like them somewhat brighter although nowhere near what you see on the display models. I also like the color temperature set to neutral. Now for a couple questions. I know what the SOE is and I've seen it on many TV's over 60Hz, and I don't like it and know how to get rid of it, but on this TV I don't seem to be able to re-create it. I've tried CineMotion Auto 1 & 2 and all the different Motionflow settings as well. I also see no real changes to the picture when enabling and disabling things like Smooth Gradation, Noise reduction, Dot noise reduction and Reality Creation. Can anyone help with the questions I have and perhaps explain those settings I've mentioned in more detail than what the TV's description of those settings says? Maybe some real world examples where I would or wouldn't want to use those settings. Thanks.
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post #160 of 1970
6/3/12 at 9:49am
Quote:
Originally Posted by sfeldman721 View Post

Well I picked up a 46" HX850 a couple days ago. Couldn't decide between the one I got or the 50" Panasonic GT50. Chose the Sony because of more flexibility in the picture settings and figured I could always tone down the settings so it doesn't look as it does when you see it at the store in retail or vivid mode. Plus my last TV was a 40" Sony XBR1. Still working great and a great picture for a 1st generation LCD. Anyway, I have a couple questions and a couple impressions. Firstly, since this is my first LED I guess there are some things I need to get used to. I did tons of research so I know the pros and cons of all the different HDTV technologies. Let me first say I like the TV but I'm shocked by how narrow the "sweet spot" of the viewing area is. For me, a foot or 2 to the left or right of center and the darks get washed out from about the edge of the bezel to about a foot in. I know this is because it is edge lit. Second, I love the color reproduction. I've tried some of the settings listed on this thread and I found them to be way too dull, dark and warm for my taste, but to each his own. I've found I like them somewhat brighter although nowhere near what you see on the display models. I also like the color temperature set to neutral. Now for a couple questions. I know what the SOE is and I've seen it on many TV's over 60Hz, and I don't like it and know how to get rid of it, but on this TV I don't seem to be able to re-create it. I've tried CineMotion Auto 1 & 2 and all the different Motionflow settings as well. I also see no real changes to the picture when enabling and disabling things like Smooth Gradation, Noise reduction, Dot noise reduction and Reality Creation. Can anyone help with the questions I have and perhaps explain those settings I've mentioned in more detail than what the TV's description of those settings says? Maybe some real world examples where I would or wouldn't want to use those settings. Thanks.

I know on my Bravia to get the SOE Motionflow had to be set to Standard or High and Cinemotion had to be set to 1 to get the smoothing effect. I found Cine 2 reduced the smoothing considerably but still gave a lifelike and sharp picture.
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post #161 of 1970
6/3/12 at 10:38am
Quote:
Originally Posted by sfeldman721 View Post

Well I picked up a 46" HX850 a couple days ago. Couldn't decide between the one I got or the 50" Panasonic GT50. Chose the Sony because of more flexibility in the picture settings and figured I could always tone down the settings so it doesn't look as it does when you see it at the store in retail or vivid mode. Plus my last TV was a 40" Sony XBR1. Still working great and a great picture for a 1st generation LCD. Anyway, I have a couple questions and a couple impressions. Firstly, since this is my first LED I guess there are some things I need to get used to. I did tons of research so I know the pros and cons of all the different HDTV technologies. Let me first say I like the TV but I'm shocked by how narrow the "sweet spot" of the viewing area is. For me, a foot or 2 to the left or right of center and the darks get washed out from about the edge of the bezel to about a foot in. I know this is because it is edge lit. Second, I love the color reproduction. I've tried some of the settings listed on this thread and I found them to be way too dull, dark and warm for my taste, but to each his own. I've found I like them somewhat brighter although nowhere near what you see on the display models. I also like the color temperature set to neutral. Now for a couple questions. I know what the SOE is and I've seen it on many TV's over 60Hz, and I don't like it and know how to get rid of it, but on this TV I don't seem to be able to re-create it. I've tried CineMotion Auto 1 & 2 and all the different Motionflow settings as well. I also see no real changes to the picture when enabling and disabling things like Smooth Gradation, Noise reduction, Dot noise reduction and Reality Creation. Can anyone help with the questions I have and perhaps explain those settings I've mentioned in more detail than what the TV's description of those settings says? Maybe some real world examples where I would or wouldn't want to use those settings. Thanks.

Can you please provide some input regarding the following on your set?
  • Clouding
  • Flashlighting
  • Dirty Screen Effect (DSE)
  • Banding
Thanks!
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post #162 of 1970
6/3/12 at 10:47am
Quote:
Originally Posted by sfeldman721 View Post

Well I picked up a 46" HX850 a couple days ago. Couldn't decide between the one I got or the 50" Panasonic GT50. Chose the Sony because of more flexibility in the picture settings and figured I could always tone down the settings so it doesn't look as it does when you see it at the store in retail or vivid mode. Plus my last TV was a 40" Sony XBR1. Still working great and a great picture for a 1st generation LCD. Anyway, I have a couple questions and a couple impressions. Firstly, since this is my first LED I guess there are some things I need to get used to. I did tons of research so I know the pros and cons of all the different HDTV technologies. Let me first say I like the TV but I'm shocked by how narrow the "sweet spot" of the viewing area is. For me, a foot or 2 to the left or right of center and the darks get washed out from about the edge of the bezel to about a foot in. I know this is because it is edge lit. Second, I love the color reproduction. I've tried some of the settings listed on this thread and I found them to be way too dull, dark and warm for my taste, but to each his own. I've found I like them somewhat brighter although nowhere near what you see on the display models. I also like the color temperature set to neutral. Now for a couple questions. I know what the SOE is and I've seen it on many TV's over 60Hz, and I don't like it and know how to get rid of it, but on this TV I don't seem to be able to re-create it. I've tried CineMotion Auto 1 & 2 and all the different Motionflow settings as well. I also see no real changes to the picture when enabling and disabling things like Smooth Gradation, Noise reduction, Dot noise reduction and Reality Creation. Can anyone help with the questions I have and perhaps explain those settings I've mentioned in more detail than what the TV's description of those settings says? Maybe some real world examples where I would or wouldn't want to use those settings. Thanks.

Can you please share your settings? Did you turn off the Light Sensor?
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post #163 of 1970
6/3/12 at 10:49am
Quote:
Originally Posted by HaRd2BeAr View Post


Hi Kevin,

Have you turned the Ambient light sensor (not sure what its called in the US) or any energy saving features off?

I found on my HX823 it made a huge difference and once off backlight of max would require shades.

Hi,

It seems that on 3D mode, back light is MAX and greyed out. Are you supposed to use 3D mode with light sensor on so that the TV can adjust back light automatically?
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post #164 of 1970
6/3/12 at 12:02pm
Back light is greyed out in 3D mode because it is already at MAX.

Feldman, try my settings, you seem to be more like me. I hate these "pro" calibration settings because they are way too dark. I don't watch in the pitch black. Turning off Cinemotion removes SOE. If you watch a movie on HBO, put Motionflow on Standard, and turn Cinemotion on and off. You will see what I mean.

Hard2Bear, are those settings for Cinema 1 or 2? There is no "movie". I have noticed that on two different presets (say Scene General Standard and Scene General Custom), the same exact calibration settings will look different. For instance, Standard looks great but Custom looks whitewashed. It's odd.
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post #165 of 1970
6/3/12 at 12:02pm
Oh and ALWAYS TURN OFF LIGHT SENSOR
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post #166 of 1970
6/3/12 at 12:32pm
Quote:
Originally Posted by bitterkevin View Post

Hard2Bear, are those settings for Cinema 1 or 2? There is no "movie". I have noticed that on two different presets (say Scene General Standard and Scene General Custom), the same exact calibration settings will look different. For instance, Standard looks great but Custom looks whitewashed. It's odd.

Sorry Kevin, that is why you shouldn't copy setting sheets from European sites lol

Cinema 1 is the preset i use.

I don't view in a dark room either, there is always a light on, find 3 plenty bright but can see why some like it brighter.

Just to add my eyes are permanently dilated, meaning i am sensitive to bright lighting.

Must say it is a cracking tv, it looks so much better than the HX823 as well, it makes a huge difference having the slim bezel and the silver trim.

Tested it out with some Alien, Highwaymen and Ratatouille, only watched the last two because they were being broadcast in HD and they caught my eye. Stunning to say the least.

I haven't tried 3D and doubt i will at the moment.

Aaron
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post #167 of 1970
6/3/12 at 3:06pm
Well I've only had it a couple days and really haven't watched anything other than maybe a half hour of the Stanley Cup the other night. Because I haven't seen some of these effects other than what's posted on here, I can only say my set may have symptoms of all or none of those but if it does, it doesn't interfere with what I'm viewing, and remember, I think the settings from CNET's review make it too dark and too warm. That doesn't mean what I'm seeing is accurate color representation, but my tastes are for a brighter picture put not with so much brightness and contrast that it hurts your eyes. As of yet I haven't seen anything that makes me regret choosing this TV.
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post #168 of 1970
6/3/12 at 4:26pm
My settings are (and I'm sure I'll tweak thes

Picture Mode -Standard
Backlight- 6
Picture - 95
Brightness - 50
Color - 60
Hue - 0
Color Temp - Neutral
Noise Red. - off
mpeg noise red.-off
Dot noise - off
Reality Creat- - off
Smooth Grad. - off
Motioflow - clear
Cinemotion - off
Advcd. Settings
Black corr. - medium
Adv. Contrast enhancer - medium
gamma-0
led dynm. ctrl- standard
auto light limiter-off
clear white-off
live color-off
white balance - all 0
detail enhancer-off
edge enhancer-off

all eco settings are off
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post #169 of 1970
6/3/12 at 4:30pm
Color Temp - Neutral - it's too cold colors, I use Warm1.
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post #170 of 1970
6/4/12 at 10:44am
I notice there is a feud between the Neutral and Warm parties. To me, Warm looks like crap. The whites are brown. Neutral is way better. Could this be due to PAL/MTSC differences? USA vs Europe?

Feldman, Try leaving all the things on the first page of Standard on Auto. Xreality may not make much difference with a true 1080p source like Blu ray, but it punches up 720p/1080i sources like FIOS cable and Xbox to look like true 1080p. (very very few xbox games are true 1080p) It's amazing. I have been playing CoD MW3 and other games using Xreality and I can never go back. Watching Game of Thrones on HBOGO thru the Xbox changes it from looking Youtubey to BluRay!

I also would suggest turning off all the stuff on page 2 (advanced settings) except for Dynamic LED. Also, turn off Cinemotion. That adds Soap Opera Effect. For Motionflow, I like Standard or Clear.

Scene: General Standard (if you use these with custom they look whitewashed?!?)
Backlight- 5
Picture - Max
Brightness - 50
Color - 55
Hue - 0
Color Temp - Neutral
Noise Red. - AUTO
mpeg noise red.- AUTO
Dot noise - AUTO
Reality Creat- - AUTO
Smooth Grad. - LOW
Motioflow - STANDARD
Cinemotion - off
Advcd. Settings
Black corr. - OFF
Adv. Contrast enhancer - OFF
gamma-0
led dynm. ctrl- standard
auto light limiter-off
clear white-off
live color-off
white balance - all 0
detail enhancer-off
edge enhancer-off

all eco settings are off
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post #171 of 1970
6/4/12 at 12:44pm
The good news is, the shipping company just dropped off my new 55HX850 that replaces the 52XBR9 (panel problem) that was the replacement for two 52XBR6s (cracked bezels upon delivery) that were the replacements for a 46XBR4 with a panel defect...

I'm assuming there's not supposed to be an indentation in the top of the rear panel, maybe six inches in from the left side of the set as viewed from the front? It's a fairly shallow and very even indentation, with no apparent damage to the finish, and the set itself appears to work just fine...but figured it was worth asking to see what I'm dealing with here.
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post #172 of 1970
6/4/12 at 1:33pm
I would like to report that the TV rebooted within couple of minutes of starting for no apparent reason. Other Sony model TV owners have been reporting similar issues as well.
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post #173 of 1970
6/4/12 at 2:13pm
I got some strange reboots over the weekend too. Reset your TV by holding up on the remote's d-pad and pressing the power button on the TV itself. You should see a thing pop up that says "RESET?". Press power again while still holding up. This happened on my EX720 too, annoyingly frequently, usually after updates. Unplugging the TV for a few minutes also seems to work.

Fybush, i'll look for that dent tonight.
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post #174 of 1970
6/4/12 at 4:19pm
Quote:
Originally Posted by bitterkevin View Post

I got some strange reboots over the weekend too. Reset your TV by holding up on the remote's d-pad and pressing the power button on the TV itself. You should see a thing pop up that says "RESET?". Press power again while still holding up. This happened on my EX720 too, annoyingly frequently, usually after updates. Unplugging the TV for a few minutes also seems to work.

Fybush, i'll look for that dent tonight.

I've had trouble resetting my EX720. Should the TV be one when I hold the up button on the remote and power on the TV itself?

Thanks,
Dave
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post #175 of 1970
6/4/12 at 6:17pm
Quote:
Originally Posted by bitterkevin View Post

I got some strange reboots over the weekend
Fybush, i'll look for that dent tonight.

Sony doesn't think it should be there, and I trust them on that.

Waiting to see what the next step will be...other than the dent, I very much like the set after spending a few hours with it!
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post #176 of 1970
6/4/12 at 6:37pm
Quote:
Originally Posted by fybush View Post


Sony doesn't think it should be there, and I trust them on that.

Waiting to see what the next step will be...other than the dent, I very much like the set after spending a few hours with it!

I would say "Keep it", the next one could have flashlighting or bad DSE !
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post #177 of 1970
6/4/12 at 9:31pm
Fybush, I checked and have no dent. I would swap it. You never know what could happen down the road because of it.

Dave, do it when the TV is already on. Hold up on the remote, press power on the TV, don't let go of up, and press power again when RESET appears. This resets to factory defaults so you have to recalibrate.
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post #178 of 1970
6/6/12 at 10:52pm
Well everyone, I finally pulled the trigger and ordered a 55HX850 last week with a free 3d blu-ray player to boot!! Thanks to you guys' help in answering some of my questions.. wish me luck.. I receive it Friday and I want to hook it up ASAP and as soon as I do I will let you know what I think.. I am very much looking forward to this and feel this will be a significant upgrade from my Sammy 61" DLP.... Talk to ya dudes soon..

Mike:)
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post #179 of 1970
6/7/12 at 10:54am
Quote:
Originally Posted by bitterkevin View Post

I got some strange reboots over the weekend too. Reset your TV by holding up on the remote's d-pad and pressing the power button on the TV itself. You should see a thing pop up that says "RESET?". Press power again while still holding up. This happened on my EX720 too, annoyingly frequently, usually after updates. Unplugging the TV for a few minutes also seems to work.
Fybush, i'll look for that dent tonight.

There's a more extensive discussion of the 'random restarts' on the HX820 thread.

Let me try to summarize what's known so far about the 'random restarts':

- The symptom we're describing when we say 'random restarts' is that the TV suddenly turns off and turns back on by iteslf and for no apparent reason; total time it's off is no more than 5 seconds or so
- It isn't related to firmware auto-updates (happens too frequently, no update is found to have happened after the random restart, and it's happening even for people who turned auto-updates off)
- It often seems to happen shortly after turning the TV on (within 1-2 minutes) but definitely can happen at other times as well (anytime after it's been on for a while)
- Models confirmed to be affected so far: HX820, NX720, HX850
- The HOST_WDT error count in the Diagnostics self-check seems to correlate directly to the random restarts
- (when a random restart happens the HOST_WDT error count increases by 1)
- (To get to the Error Log: Turn the TV off, wait 3 seconds, then press: Display, 5, Volume Down, Power; in sequence, not at the same time)
- (The error counts apparently get reset to zero after a firmware update, so the error count would only show the instances since your last update, not since you've owned the TV)
- It can happen whether you're using the Wireless connectivity or connecting through ethernet
- It can happen regardless of the Input of function you're doing (HDMI, Composite, using the built-in Netflix, ect)
- The frequency with which it can happen can vary a lot
- (I"ve personally seen it happen as often as once a couple days in a row, and then two weeks go by before it happens again)
- There's no indication of whether this issue is a hardware of firmware related issue (obviously a firmware issue would be much better, as it could be fixed by Sony through an update)

So guys, at this point it might make sense to make a new thread for this issue especially since it's crosses over so many models. A thread called something like "Sony random restart issue (HX820,HX850,NX720)"
I really want to get this issue resolved because my HX820 seems like a nearly flawless TV other than this issue.
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post #180 of 1970
6/7/12 at 7:31pm
Quote:
Originally Posted by chicagorunner10 View Post

There's a more extensive discussion of the 'random restarts' on the HX820 thread.
Let me try to summarize what's known so far about the 'random restarts':
- The symptom we're describing when we say 'random restarts' is that the TV suddenly turns off and turns back on by iteslf and for no apparent reason; total time it's off is no more than 5 seconds or so
- It isn't related to firmware auto-updates (happens too frequently, no update is found to have happened after the random restart, and it's happening even for people who turned auto-updates off)
- It often seems to happen shortly after turning the TV on (within 1-2 minutes) but definitely can happen at other times as well (anytime after it's been on for a while)
- Models confirmed to be affected so far: HX820, NX720, HX850
- The HOST_WDT error count in the Diagnostics self-check seems to correlate directly to the random restarts
- (when a random restart happens the HOST_WDT error count increases by 1)
- (To get to the Error Log: Turn the TV off, wait 3 seconds, then press: Display, 5, Volume Down, Power; in sequence, not at the same time)
- (The error counts apparently get reset to zero after a firmware update, so the error count would only show the instances since your last update, not since you've owned the TV)
- It can happen whether you're using the Wireless connectivity or connecting through ethernet
- It can happen regardless of the Input of function you're doing (HDMI, Composite, using the built-in Netflix, ect)
- The frequency with which it can happen can vary a lot
- (I"ve personally seen it happen as often as once a couple days in a row, and then two weeks go by before it happens again)
- There's no indication of whether this issue is a hardware of firmware related issue (obviously a firmware issue would be much better, as it could be fixed by Sony through an update)
So guys, at this point it might make sense to make a new thread for this issue especially since it's crosses over so many models. A thread called something like "Sony random restart issue (HX820,HX850,NX720)"
I really want to get this issue resolved because my HX820 seems like a nearly flawless TV other than this issue.



No restarts here. Maybe it was a software update.
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AVS › AVS Forum › Display Devices › LCD Flat Panel Displays › Official Sony HX850 Owner's Thread (46HX850, 55HX850)