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Official LG XXLD450 Thread - Page 36

post #1051 of 1547
I am very happy the settings seem to be helping people dial in their TV's, it took a lot of work to get them right and a big thanks to Chad B for helping me out during the calibration learning curve.

Currently on this test http://www.lagom.nl/lcd-test/white.php I can see up to 252 so I am satisfied enough.

http://www.lagom.nl/lcd-test/contrast.php shows all the boxes at 1, blue red and magenta boxes near the higher numbers become hard to tell apart so will prob attach that at one point in time.

I went back to HDMI-HDMI in order to get access to the pixel format menu in ATI's control panel (not available with DVI), even with the EDID fix I can't get 4:4:4 back. This will be my next project when I get a chance
post #1052 of 1547
I spent some time tonight checking my four LD450's for the backlight humming problem, and here are my findings...

While on the Tuner/OTA input (I don't have an antenna, so all I had on the screen was static snow), there was no humming whatsoever. Even with my ears right against all parts of the TV, I heard nothing at all. I also varied the volume from mute to 5, and still no humming. Note: at 5, the static snow sound was too high so even if there was a hum, the sound would have drowned it out.

While on the HDMI1 input with a PS3 connected, playing the Final Fantasy 13 intro, at volume mute, with my ears right against the rear vents, I could hear a *really* faint hum. When sitting inches away in front of the TV, I couldn't hear the hum at all. I then adjusted volume from 0 to 10 (with my ear still against the rear vent), and the acoustics of the hum remained the same -- so I guess this means TV volume doesn't have an effect on the hum.

I also tried the "set backlight to 100" fix, and it indeed got rid of the hum. With backlight set from 0 to 99, the acoustics of the hum was constant. But right at 100, the hum disappeared.

I'm not a CCFL backlight expert, but if I had to come up with a theory, I would say the CCFL voltage regulator is the cause of the humming problem. From 0-99, the regulator is in an active state which creates the hum. But at 100, perhaps the regulator becomes inactive (or maybe bypassed completely) in order to provide full power to the CCFL, and therefore the hum disappears.

Just to draw a parallel, I use custom T5 fluorescent lighting for my aquariums. If I use a cheapo ballast with little EM shielding, then I get a electronic hum similar to what I hear on the TV (but much louder). If I use a high quality ballast, then the hum is much much lower.
post #1053 of 1547
I live in Poland and it's hard to get LD450 at all (465 is more popular now). I asked here and there but I encountered only "D-on-the-box" versions (MVA panels).
I play on my xbox a lot so my question is:
Is there any difference (in terms of input lag) between MVA and IPS panels?

I don't care about PQ. I've read all pages from this thread and couldn't find input lag measured for MVA panels.
post #1054 of 1547
Can somebody post there finals settings please?
post #1055 of 1547
STATUS SCREEN MODEL ID

In the interests of helping to identify differences relating to video calibration, TV performance, and HDMI/USB input behavior, I would like to ask new owners to check the Host Status screen of their TV.

This is a simple procedure selected while in the main menu with Option highlighted. It is not a menu where any changes can be made to TV functions. It is just a Host Status screen that identifies things like model/platform, HDMI signal type including bit rate, audio mode, etc, and even ATSC tuner signal strength if the internal tuner is being used. It also reports Wireless Ready Status and more detailed firmware version information. In short, it just reports the status of whatever signal source that you are viewing, plus the model/platform information.

This information may help explain why picture calibration and even HDMI behavior is different even in the same model and screen size; or the same even with different screen sizes if the model name/platform is the same. We could then help each other and further identify what options we have for optimum performance of our TVs.

To enter the Host Status screen is simple and safe. Just follow the steps and hit "EXIT" when you want to go back to regular viewing. The screen that comes up is a transparent overlay with the TV picture of whatever signal source you are viewing.

To enter:

1. Press Menu

2. Highlight Network and press Enter

3. Press Left Arrow, then Up Arrow to just highlight "OPTION",

then press 1,1,1,1,1

4. When you are through viewing the Status Screen, press EXIT.

Now in the upper left corner please note the Model Name information. Mine says: GLOBAL-PLAT2 (Liquid Crystal Display) on my 42LD550 with July 2010 build date. From checking with just 2 other owners so far, I've come up with two or maybe three model IDs. It also seems to explain why some owners have optical audio DD 5.1 enabled "out of the box" and some don't.

Again, you won't "brick" your TV as long as you just press the 1,1,1,1,1. thanks for your support.
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post #1056 of 1547
Quote:
Originally Posted by thepoohcontinuum View Post
I spent some time tonight checking my four LD450's for the backlight humming problem, and here are my findings...

While on the Tuner/OTA input (I don't have an antenna, so all I had on the screen was static snow), there was no humming whatsoever. Even with my ears right against all parts of the TV, I heard nothing at all. I also varied the volume from mute to 5, and still no humming. Note: at 5, the static snow sound was too high so even if there was a hum, the sound would have drowned it out.

While on the HDMI1 input with a PS3 connected, playing the Final Fantasy 13 intro, at volume mute, with my ears right against the rear vents, I could hear a *really* faint hum. When sitting inches away in front of the TV, I couldn't hear the hum at all. I then adjusted volume from 0 to 10 (with my ear still against the rear vent), and the acoustics of the hum remained the same -- so I guess this means TV volume doesn't have an effect on the hum.

I also tried the "set backlight to 100" fix, and it indeed got rid of the hum. With backlight set from 0 to 99, the acoustics of the hum was constant. But right at 100, the hum disappeared.

I'm not a CCFL backlight expert, but if I had to come up with a theory, I would say the CCFL voltage regulator is the cause of the humming problem. From 0-99, the regulator is in an active state which creates the hum. But at 100, perhaps the regulator becomes inactive (or maybe bypassed completely) in order to provide full power to the CCFL, and therefore the hum disappears.

Just to draw a parallel, I use custom T5 fluorescent lighting for my aquariums. If I use a cheapo ballast with little EM shielding, then I get a electronic hum similar to what I hear on the TV (but much louder). If I use a high quality ballast, then the hum is much much lower.
actually its 0-98, at 99 as well as 100 the humming goes away.

more than likely your PS3 is drowning out the humming, when my xbox is on even with my head up to the panel and TV at mute I dont hear it at all.
post #1057 of 1547
@ thepoohcontinuum: Thank you for checking out the buzz/hum issue on your set.

Quote:
Originally Posted by thepoohcontinuum View Post
I'm not a CCFL backlight expert, but if I had to come up with a theory, I would say the CCFL voltage regulator is the cause of the humming problem. From 0-99, the regulator is in an active state which creates the hum. But at 100, perhaps the regulator becomes inactive (or maybe bypassed completely) in order to provide full power to the CCFL, and therefore the hum disappears.
Yes, that's the exact same theory I had (about it being related to some kind of voltage regulator). I even suggested the idea to the technician who came and replaced my panel in an effort to fix the issue, but he was very dismissive about it and kept insisting that such a noise was "normal for LCD TVs". If the 2 of us, who both admit to not having a lot of technical knowledge in this area, both managed to reach that same conclusion, then I don't understand why a guy who's supposed to be trained in this stuff refused to consider the problem further or listen to the idea. Definitely an irritating thing, as nice as the guy was otherwise.
post #1058 of 1547
Quote:
Originally Posted by Excellent View Post
actually its 0-98, at 99 as well as 100 the humming goes away.

more than likely your PS3 is drowning out the humming, when my xbox is on even with my head up to the panel and TV at mute I dont hear it at all.
Nope, I made sure it was 0-99 -- stopped right at 99, the hum was there, then went up to 100, and the hum was gone. As mentioned before, I can only hear the hum if I put my ear right against the rear vents (probably the only place where the humming sound can escape). At first I didn't even "hear" the hum, it wasn't until I was switching back and forth between 99 and 100 backlight until my brain registered the hum. The hum *is* there, but extremely faint (for my particular units anyways).
post #1059 of 1547
Quote:
Originally Posted by The Angry Lion View Post
Yes, that's the exact same theory I had (about it being related to some kind of voltage regulator). I even suggested the idea to the technician who came and replaced my panel in an effort to fix the issue, but he was very dismissive about it and kept insisting that such a noise was "normal for LCD TVs". If the 2 of us, who both admit to not having a lot of technical knowledge in this area, both managed to reach that same conclusion, then I don't understand why a guy who's supposed to be trained in this stuff refused to consider the problem further or listen to the idea. Definitely an irritating thing, as nice as the guy was otherwise.
The thing about "[buzzing/humming sound] normal for LCD TVs" is probably correct. All high frequency electronics exhibit some amount of humming, but the intensity of the humming is dependent on the quality of the components. So the technician isn't way off base.

For me, since the humming issue is so minuscule, I wouldn't even call it an issue. But obviously some folks have a much louder humming sound, so who knows, maybe they're the unlucky ones to receive TVs where LG got lazy and started using subpar components Or there could even be other external factors like a lousy electrical system in the house, or people living under a cell/radio tower, or they have really awesome ears.
post #1060 of 1547
Quote:
Originally Posted by thepoohcontinuum View Post
The thing about "[buzzing/humming sound] normal for LCD TVs" is probably correct. All high frequency electronics exhibit some amount of humming, but the intensity of the humming is dependent on the quality of the components. So the technician isn't way off base.
I have a 47LD520 and I don't hear any humming or buzzing at all on any inputs or settings at any volume that is comfortable for us, and there's 3 of us watching this tv so it's just not my ears, which are admittadly getting worse with age Sounds to me like a shielding problem maybe due to poor QC when the tvs were manufactured?
post #1061 of 1547
Yeah, I guess it could be that a lot of modern electronics hum/buzz, but what I don't get is that my particular TV made no such noise at all for the first 2-3 months, and back then I always had my backlight set to between 40-60. Nothing had changed since I first got the set (when it was absolutely silent), and nothing new had been introduced into the formula (no new A/V equipment, etc.), so I guess I'm unsure as to what caused it to start happening. As I've said before, the buzzing hum my set makes probably wouldn't be a bother if I sat further back, or if I had the TV's volume turned up higher (I usually only have it as high as 6-8), but I did notice the noise easily once it started, and it's noticeable enough to me to be irritating, though maybe I'm just sensitive to distracting sounds. If the set had always, from day one, made the noise then maybe I wouldn't question it so much... It's just strange that it one day just started happening with no changes being made to my setup.

Again though, I really appreciate your time and input on the matter. I'm sort of used to having my backlight set to maximum now, so I'm sure I can live with it...
post #1062 of 1547
Quote:
Originally Posted by The Angry Lion View Post
Again though, I really appreciate your time and input on the matter. I'm sort of used to having my backlight set to maximum now, so I'm sure I can live with it...
Its what you get for siding with the A-MVA panel But yeah, its a shame we couldn't come up with a definitive conclusion (or fix) for this problem, the electrical leprechauns are beyond human comprehension.
post #1063 of 1547
Quote:
Originally Posted by thepoohcontinuum View Post
Its what you get for siding with the A-MVA panel
You're right! I just re-checked the brochure, and realized that it stood for Ample Malevolent Vibrating Annoyance! That'll learn me to do more research on whatever I'm buying.
post #1064 of 1547
Quote:
Originally Posted by rawashdeh View Post

New settings to calm down the blue a little bit:


Code:
Best settings expert 1                                                                                  
                                                                                        
BACKLIGHT       48                                                                              
CONTRAST        81                                                                              
BRIGHTNESS      69                                                                              
H SHARPNESS     65                                                                              
V SHARPNESS     54                                                                              
COLOR   50                                                                              
TINT    G3                                                                              
                                                                                        
BLACK LEVEL     LOW                                                                             
COLOR   BT709                                                                           
EDGE ENHANCER   Low                                                                             
COLOR TEMPREATURE       WARM                                                                            
GAMA    2.2                                                                             
METHOD  10 PONT                                                                         
IRE     100     90      80      70      60      50      40      30      20      10      0
LUMINANCE       150                                                                             
RED     3       0       9       5       7       7       8       16      10      9       50
GREEN   1       0       0       0       2       0       0       12      5       2       -50
BLUE    6       25      22      19      17      12      14      20      15      3       -50
                                                                                        
CMS                                                                                     
RED COLOR       -1                                                                              
RED TINT        6                                                                               
GREEN COLOR     2                                                                               
GREEN TINT      8                                                                               
BLUE COLOR      -2                                                                              
BLUE TINT       -11                                                                             
YELLOW COLOR    0                                                                               
YELLOW TINT     -1                                                                              
CYAN COLOR      1                                                                               
CYAN TINT       1                                                                               
MAGENTA COLOR   18                                                                              
MAGENTA TINT    8                                                                               

I am running these settings now and when checked with the AVS HD 709 calibration files and the built-in blue filter, my color and tint is way out of calibration. Color is at 35 and Tint is at G5 in order to get the blue filter calibration correct.

I know I definitely have a IPS panel, but I was not expecting this much variation from one LD450 to another. But I am connecting with an ATI 5570, so maybe that could be the reason.
post #1065 of 1547
Quote:
Originally Posted by atf678 View Post

I am running these settings now and when checked with the AVS HD 709 calibration files and the built-in blue filter, my color and tint is way out of calibration. Color is at 35 and Tint is at G5 in order to get the blue filter calibration correct.

I know I definitely have a IPS panel, but I was not expecting this much variation from one LD450 to another. But I am connecting with an ATI 5570, so maybe that could be the reason.

I also used rawashdesh's settings, and they were much better than mine (thanks!). But when I made those 2 changes you noted the blues are now much toned down, and I don't know if it's just me but the yellows seem more in line with my other computer monitors. In other words, color-wise it looks much more like any other pc monitor, if that makes any sense. Anyways, thanks...I must have a similar panel as you. (also using ati 6850 via hdmi-hdmi).
post #1066 of 1547
at low volume I can clearly hear the humming (when I am trying to hear it) my TV makes from 5 or so feet away. at higher volumes I cant hear it at all unless the TV goes silent or is on mute. with my non slim xbox is on the humming is inaudible even with my ear to the set. to clarify my set is an IPS panel.

after checking my set, the hum is actually adjustable! at 100 it completely goes away, at 99 it is there but faint and only audible with my ear up to the TV and no volume, and at 98 or below the hum gets alot louder, but it really isnt noticable at low volume, much less at more reasonable volumes. only when the TV goes quiet or is muted.

I bought this model TV for gaming and its is exceptional for input lag as my PS2 fighting games over component are very very very close to being as fast as on my old CRT, let alone when playing 360 games.

the humming doesnt bother me even when I'm not watching at 100, my only worry is that I might shorten the lifespan of the set by keeping the backlight at 100. the humming could also get worse just out of general age or because the backlight dimming over time would cause it to drop below 100 and therefore humming would resume...

well regardless especially for the price the picture and sound are excellent (no pun intended) along with not having to worry about the TV lagging games especially on older consoles.
post #1067 of 1547
I forgot to mention that my set hums kinda loud , too.
It's loudest with the backlight between 25 and 70. And turning on 24hz mode eliminates the hum almost completely , with 50hz beeing somewhat quieter than 60hz.
I just never bothered to exchance the set because it seems to be such a wide spread issue in pal-land and each of our 4 LCDs in the house has such a hum . Maybe sometime in the future I'll resinate the coils of the backlight inverter , but like I said I'm not too bothered.
post #1068 of 1547
My 37LD450 doesn't hum. I do get that high pitched noise from the headphone jack though. Poor sound too.
post #1069 of 1547
Umm, I'm sorry but who cares about a hum noise. I thought this thread was about video quality for a particular monitor....umm...perhaps you got a dud, I dunno...
post #1070 of 1547
Quote:
Originally Posted by wkreply View Post

Umm, I'm sorry but who cares about a hum noise.

Umm, the people who are complaining about it? Just because you're not experiencing it doesn't make it a problem not worth discussing. And no, this thread is not just supposed to be about video quality. It's about any aspect of the LD450 series.
post #1071 of 1547
do you care when people are talking in the audience at a movie theater? its the same concept.
post #1072 of 1547
Quote:
Originally Posted by Excellent View Post

do you care when people are talking in the audience at a movie theater? its the same concept.

Yes, that's a good analogy of the problem. Some people can manage to not be bothered by such things, whereas others (like me) it distracts immensely. I'll try not to keep reiterating my complaint about it since I've already done so and my original complaint still stands and hasn't changed, but the issue can still be discussed.

As for my own buzzing hum, it starts as soon as I lower my backlight to 99, but it doesn't change in intensity as I go down lower. From 0-99, it pretty much stays the same.

As for the life of the backlight, I wonder if the claimed 60,000 hour lifespan is the estimate for if the backlight is kept at maximum? I feel like that must be the case, and if so, then I'm not going to worry too much about having my backlight set to 100%. I'd like to be able to lower my backlight for other reasons though.
post #1073 of 1547
Guys, can i get some opinions on the non IPS version of this set vs the sony ex400?
post #1074 of 1547
Quote:
Originally Posted by Guinness1983 View Post

Guys, can i get some opinions on the non IPS version of this set vs the sony ex400?

I guess I would read the posts that are already here and in the Sony threads like the rest of us. You've been asking these kinds of questions for almost two months now from thread to thread. If you want low input lag and excellent picture quality, this is your TV. Best for the money. Buy one before these models run out in store inventories as the new models are out.

Lastly, it seems you will be buying a 50HZ (or 100HZ) Euro model which may be quite different in specifications and features than U.S. models whether Sony or LG.
post #1075 of 1547
Quote:
Originally Posted by Phase700B View Post

I guess I would read the posts that are already here and in the Sony threads like the rest of us. You've been asking these kinds of questions for almost two months now from thread to thread. If you want low input lag and excellent picture quality, this is your TV. Best for the money. Buy one before these models run out in store inventories as the new models are out.

Lastly, it seems you will be buying a 50HZ (or 100HZ) Euro model which may be quite different in specifications and features than U.S. models whether Sony or LG.

Thanks for the quick reply. I've been going back and forth between the lg and the sony tv's and going over and over on the forums but still can't make up my mind. This is getting ridiculous, I don't even need a tv since we still don't have proper hd in HK and I never play games anymore. I'd just about made up my mind over the weekend to get the ld550 but all the stores have run out so I'm back to the 450 vs the ex400 or 500 going back over the same threads and the same posts again...
post #1076 of 1547
Quote:
Originally Posted by Guinness1983 View Post

Guys, can i get some opinions on the non IPS version of this set vs the sony ex400?

I can't do an actual comparison between those 2 sets as I only have access to my 37LD450, but I can offer my opinions on the non-IPS version of the LD450, as mine is one with a "D" in the 4th position in the last segment of the product code, and my panel is an AU Optronics A-MVA panel. According to thepoohcontinuum's FAQ ( link ), he did some checking on my specific panel model number, and it's the same panel used in the Samsung C530 and Sony EX500 sets, if that helps.

Instead of repeating myself and possibly annoying others by doing so, I'll post links to a couple of my posts on here in this thread where you can read some of what I say.

Link to the first post

Link to the second post


I've also posted a few posts with opinions on the A-MVA panel I've got on another AV forum, but it might not be proper forum etiquette to post links to another forum on here, so I'll PM those links to you instead.
post #1077 of 1547
My friend has a Sony 32EX400, though I have the IPS version of the LG 37LD450. I haven't had them side by side but both are excellent HDTV's. He runs XBMC on his HTPC and it looks great. For general PC use the LG wins due to 4:4:4.
post #1078 of 1547
Quote:
Originally Posted by The Angry Lion View Post

Yes, that's a good analogy of the problem. Some people can manage to not be bothered by such things, whereas others (like me) it distracts immensely. I'll try not to keep reiterating my complaint about it since I've already done so and my original complaint still stands and hasn't changed, but the issue can still be discussed.

As for my own buzzing hum, it starts as soon as I lower my backlight to 99, but it doesn't change in intensity as I go down lower. From 0-99, it pretty much stays the same.

As for the life of the backlight, I wonder if the claimed 60,000 hour lifespan is the estimate for if the backlight is kept at maximum? I feel like that must be the case, and if so, then I'm not going to worry too much about having my backlight set to 100%. I'd like to be able to lower my backlight for other reasons though.

after looking through the factory picture settings, one of them (Sports) has the backlight set to 100 by default. so I'm guessing if its a factory setting it wont do harm to the TVs lifespan.
post #1079 of 1547
First off, let me say in advance, thank you to anyone willing to lend some advice. I've owned my LG 42LD450 for about 2 months now. Right after Christmas I was able to purchase 3 of these TVs from Walmart for $499 each. Being a PC gamer, I had Eyefinity in mind. 2 of these units remain boxed. The reason being is I've had a devil of a time getting 4:4:4 to show up correctly via the simple test ( red and magenta wording ) displaying correctly as mentioned in the F.A.Q. on the one monitor. I didn't want 3 times the headache. The red / magenta wording is extremely blurry regardless of any steps I take. As suggested, I did zoom the test picture out.

I am running a 6970 via the HDMI port 1, so HDMI to HDMI. I've tried the different pixel formats as well as the EDID fix. The monitor looks the same regardless of what I do. I am running the most recent video driver from ATI.

I am a hands-on RTFM type of guy and have spent many many hours looking for a solution. Trust me when I say me posting here asking for help is really a last ditch effort before I return all 3 TV's. Walmart gives you 90 days to return TVs.

The motivation behind purchasing these TV is from all the excellent reviews I've read. From the low input lag to the 4:4:4 support to the excellent high marks on the picture. I was really sold when the author said this model makes for about the best monitor out of all the LCD's on the market in regards to a turn-key LCD television. I'm coming from a new Westinghouse 37W3 I've had for 4+ years but only recently took out of the box.

I need to get this 4:4:4 issue resolved. I have over $1,600 tied up in these 3 units all the while fighting to fix this issue. Any help would greatly be appreciated.
post #1080 of 1547
Quote:
Originally Posted by rthefley View Post

I need to get this 4:4:4 issue resolved. I have over $1,600 tied up in these 3 units all the while fighting to fix this issue. Any help would greatly be appreciated.

When you installed the EDID fix, did the 'Pixel Format' tab in CCC disappear? And you restarted your computer after installing the fix, right?

Also, what happens when you use a DVI->HDMI connection? Does 4:4:4 still fail?
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