[R0BBY]

Purchased a LG 55LM7600 with passive 3D this weekend. We'd been planning it for awhile so we had several 3D blu-ray at the ready for once we pulled the trigger. Got it all hooked up to a LG blu-ray player with high speed HDMI cable and started watching. About half way through tangled I felt nauseous and had to stop watching. I felt like I was going cross-eyed walking around the house. I picked passive 3D because I have no problem going to the movies and watching so I was hopeful it would work out fine at home. I trudged through the rest of the movie and my wife said it wasn't bad but she was a little dizzy.

The next morning I still felt cross eyed and started looking into it but figured it was because the TV was too big. By that night my eyes felt better and I watched TV the rest of the night with no problems. Today I put in another 3D blu-ray and within minutes I felt like crap. I took off the glasses and noticed that the image was shifting all over the place. The horizontal lines would line up enough so that the image looked 2D instead of 3D then they would shift (sometimes rapidly, sometimes slowly) to give the 3D image then they would jiggle and move around some more.

I drove the Best Buy to look at the 55LM7600 on display there which is in their 3D area and that display is not doing what this one is. I switched inputs to a PS3 with a different HDMI, no change. Turned off the smoothing effects, no change, local dimming, auto contrast, different movie modes, whatever I could think of but the issue remains the same, no matter the blu-ray, HDMI, or player 3D always seems to shift.

I found this forum because one other user mentioned having this issue in one thread but the only suggestion was to turn off the smoothing (and that reply is buried in the thread, the original poster never posted back if they kept the TV since they were posting to say that if the issue was not fixed they were returning it). I really like the TV and was lucky with the panel roulette in that there is no flash-lighting/clouding, but if I can't figure out this 3D thing it will be a deal breaker since that was the whole reason for upgrading in the first place. I made a video of the effect and posted it on you-tube, please, any suggestions will be appreciated:

LG 55LM6700 3D Issues with LG BD670 Blu-Ray Player - YouTube

<iframe width="480" height="360" src="http://www.youtube.com/embed/zpVBqQcZcBg?rel=0" frameborder="0" allowfullscreen></iframe>

[connect]

The TV shouldn't do that. It's plug and play. It should be great straight out the box with no adjustments needed. I'm assuming its identifying the correct kind of 3D it's receiving?

Go back and swap it I would. Pain in the bum I know with a 55 incher to heft back!

[Jason Shouler]

I agree.

I recently checked out a newly purchased LG 42LM670T which I advised was faulty - and the replacement was perfect (the original produced very poor 3D with loads of cross-talk which would certainly have caused a headache)

When you get a set home then the 3D should be at least as good as the store demo and most likely better

[R0BBY]

Called LG today regarding the issue. It was hard to explain to them and apparently they are blocked from YouTube so they could not look at what I was seeing. They had me do a general reset by unplugging the power for 3 minutes, turning on the TV using the button, then going into the settings and resetting all the picture settings. Somehow that did the trick (at least about 95% of the trick) the images are not shifting around unless I stand next to the screen and critically watch from a few inches away then I will see subtle shifts likely due to image processing. Still going to keep a close eye on this for the next several days as I have plenty of time before it would need to be returned. Surprised it did anything though to reset the system.

[Jason Shouler]

Originally Posted by R0BBY

...unless I stand next to the screen and critically watch from a few inches away then...

Viewing at that distance will prove nothing

Surprised it did anything though to reset the system.

I'm surprised too as it sounded like a duff set to me but as long as the 3D looks good (at the proper distance) then I wouldn't worry too much

[R0BBY]

Although the issue looked better after the reset it quickly degraded again. There were multiple calls to LG. They had me reset the TV again, reset the blu-ray player, re-install the firmware on the blu-ray player. Asked about everything before finally saying that the only thing that would fix it would be the tech to come out. The TV is now 11 days old, so I will be exchanging the TV. Pity too, as I mentioned before the panel is nice, very little light bleed. I made a more in depth video of the effect since LG apparently has never heard of this issue before however I think the video above shows the issue 'nice enough' so that the video below is redundant if you've already seen it. There were some instances I captured where on a static image not moving away or toward the viewer the image for the left eye crossed with the image for the right eye.... that's what feels the worst when you're watching this set. I still find it hard to believe though that I am the only one ever to have this problem.

Thanks to those who gave the advise to exchange this TV.

LG 55LM7600 3D Juttering/Shuttering/Stuttering Issues - YouTube

[dre1973]

Watching your youtube vid I have to agree that is not normal at all the width of the two images should not be moving around like that. Obviously as you watch a movie the width will move as objects move from the foreground to the background but as a static object like the menu there should be no movement other than the odd pixel shift that I've seen before which could be down to some image processing!

Take it back before you loose that option and good luck with the new one.

[R0BBY]

Brought back the television today for an exchange. Got it home, hooked it up and immediately put in a 3D blu-ray, no horizontal shifting, solid as a rock! More flash lighting than my previous one, almost enough to be annoying but the 3D works so I was happy. That was until I upgraded the firmware from 03.20.93 whereupon the 3D immediately went to the same level of crappiness as before. Now LG will not listen to me as the cause for the problem. They keep asking about the cables, the blu-ray player, etc. The first tech insisted I didn't have the right firmware and had me download a fresh copy from the net and install it by flash drive. The second insisted the first didn't say that and that I needed to change it back to what I had. Now this is frustration....

Edit: They had me changing settings on my blu-ray player the last call but didn't stay on the line with me to see the inevitable bad result. When they called back I had to explain again (fifth time today) what the problem is and now they are sending out a tech on Friday. If they don't get it fixed I will be returning this and getting something else, I don't want to have a bitter taste in my mouth every time I watch my TV that costs as much as I take home from a solid month of work.

[Jason Shouler]

It was a bit unfortunate updating the firmware before your were 100% certain the issue had been resolved. If it's a firmware issue then it should of course affect 1000's of users. Also, I'd be mighty surprised LG hadn't quickly already pulled it from their site.

You can quickly dispense with the blu-ray player by using internal 2D-3D or playing 3D from a media file (think you mentioned this yourself )

The symptoms (I'm assuming they're near identical) look intermittent to me so the display panel can be discounted. Personally, I can't see how a firmware update could cause an intermittent problem anyway, and as mentioned you'd expect LG to be deluged with complaints if it was. Possible component failure (or dry-joint) on one of the 3D modules I'd expect.

If the set came from the same batch then it's just possible the whole lot needs to be returned so I'd try to get LG to replace it directly.

[dre1973]

There too many people got this set with fantastic 3d results so don't be put off the tv just yet, like Jason said its a shame you updated the firmware before you gave it a real good go, there's been very little noticeable differences with any of the firmware upgrade so there was no rush to do it.

It would be a good idea to try and run a sbs movie from USB to compare it could be that the tv is having issue with the sequential side of things but may be fine with a sbs input, don't think 2d - 3d is a fantastic idea without being critical as this can have a similar effect albeit much less than in your video.

Have you turned all image processing off and are you 100% sure your not putting 2d - 3d on when trying to watch your 3d bluray, the 3d should come on by itself if your playing a 3d bluray telling you to just put your glasses on.

Remember also that when in 3d there is a completely new set of picture options like you have for regular tv so just because you've got processing turned off on the channel your watching when it goes to 3d it may still be on.

Good luck getting it sorted these tvs are very good at 3d

[R0BBY]

Tech just left, bad 3D board which means he has to replace the whole panel since it is one unit. Strange to get two in a row, like Jason said, maybe a bad batch of TVs.

[R0BBY]

Tech came yesterday and replaced the 3D board and the panel, seems to have fixed the issue! However while he was in there he said another board needed replaced too and he will be back next week for that. Strange...

[damianpadden]

sounds like you will end up like 'Trigger' and his broom...lol

only fools and horses reference if you dont know.

Damo

[dre1973]

Don't know if this is sorted yet it ive noticed the same effect on my 620tand have worked out that it only happens when you set the 3d viewpoint to anything other than 0

[fazer]

Sorry for reviving an old thread, but I have just bought an LG 47 LM620T three weeks ago in the UK and I started to notice my screen moving exactly like this, at first I though it was a setting on the TV, reset all but didn't help, next I targeted my PS3, again did not help, so I decided to buy an LG BP620 blu ray player, and guess what, still the same.
The effect is more noticeable when the viewpoint setting is increased in the 3D settings on the TV.
So now my story will begin with trying to get this fixed, suppose one fortunate thing is I purchased it from the John Lewis Chain of stores which have an excellent customer service department.
I will update later, wish me luck

[fazer]

My update: Contacted LG UK customer support, very helpful in the fact he agreed with me and the TV did have a fault, so today been back to John Lewis store where I bought the TV from, still within my 28 days purchase, they offered me a full refund, or an upgrade to a 47LM670T with half/half contribution to price difference.
So being tempted with the offer I said yes, but first could I see a 3D movie played back, the store obliged and set one up, and to my disbelief the same thing happened on the LM670T, two images merging back and forth when viewpoint set above 0.
The store had taken delivery of a new LG TV 47LA690V and on display, I asked if we could try same movie on the TV, again they obliged, and wow, no movement of images.
Therefore,...I left the store explaining I will recontact LG for their advice re this matter. Today contacted LG and spoke to a different advisor and he brushed the problem off by saying it is because I have set the viewpoint to high! and that should only be adjusted when sitting outside the 45 degree viewing angle, but he failed to explain why it happens on the two reasonable priced TV's and not one of their premium TV’s, all the comment was it might use some different screen technology.
Well cannot say I'm impressed now with LG support.
I am considering returning the product for a refund and look at a new make, damn annoying though, since I have bought separate LG sound bar and 3D blu ray player.
Any ideas on a good budget 47" 3D smart TV passive in the UK?

[Jason Shouler]

Originally Posted by fazer

Well cannot say I'm impressed now with LG support.
I am considering returning the product for a refund and look at a new make, damn annoying though, since I have bought separate LG sound bar and 3D blu ray player.
Any ideas on a good budget 47" 3D smart TV passive in the UK?

If you've read this thread from the start it should be clear this is a known fault (even if the store don't seem to know about it ) which is due to a batch of defective 3D panels (engineer replaceable).

I've personally found LG support to be very good. They fixed my Amp perfectly well when all the supplier wanted to do was give me a refund (mainly I think because they sold it at too good a price )

[JackThreeDee]

Jason, despite Robby's panel and board replacement, it looks like his issue eventually returned...if it ever really went away: his finished write-up's at Amazon's listing for the LG 55LM7600 (just search the 55LM7600 customer reviews for "3D shifting" and his post will come up). Regardless of his continued trouble, he now seems happy with the set, though he's resigned that--as many of us with these units have discovered--the 3D problem manifests should the viewpoint and depth be moved off defaults: centered, with 0 for viewpoint, and 10 for depth.

On my 55LM7600, I've found the issue seems much less pronounced with minor adjustments in 2D to 3D mode versus native 3d material via Blu-ray, where any sort of adjustment tends to cause dramatic shifting. In the latter case, I also recommend leaving the LG 3D settings at default...and perform any desired depth setting changes on the Blu-ray end, if one's player supports them. Since this is shaping up to be a very common issue, and to whom it may concern with these TV's: This might be the most direct route to contentedness with the LM7600... Accept the 3D shifting as a known bug for which there may be no fix and settle for the workarounds, or endlessly quest for a remedy LG may not be able to supply...even after multiple repairs, replacements, and an eternity haggling with customer service.

As it turns out, I find native 3D looks its best with LG's controls at their defaults, anyway (as designed and intended by the filmmakers). And with 2D to 3D being a bit more forgiving with the shifting, it's actually pretty stable at my preferred +2 viewpoint, depth of 12. That may sound subtle, but to my eye, greater changes don't seem to yield significantly better results in this mode.

[Jason Shouler]

Originally Posted by JackThreeDee

Accept the 3D shifting as a known bug for which there may be no fix and settle for the workarounds, or endlessly quest for a remedy LG may not be able to supply...even after multiple repairs, replacements, and an eternity haggling with customer service.

That's interesting Jack but are you saying the problem disappears after a factory reset because that didn't happen to me (see post #3). To me the set was completely unwatchable in 3D whatever you did, although I suppose I could have witnessed a completely different fault.

For anyone affected I strongly recommend you log the problem with LG directly (not the store you bought it from). I suspect LG will replace all faulty boards once they've engineered or re-manufactured them to correct the problem but of course you need to be registered, with the fault logged with them, for that to happen.

When I had an issue (not tv related) they told me they'd traced the problem to a suspect component provided by one of their suppliers which affected an entire batch run

True to their word, they replaced the amplifier board with a re-engineered one rather than pointlessly swapping for one from the same batch which likely would have developed the same fault.

Hopefully they'll do the same for this problem

[JackThreeDee]

Originally Posted by Jason Shouler

That's interesting Jack but are you saying the problem disappears after a factory reset because that didn't happen to me (see post #3). To me the set was completely unwatchable in 3D whatever you did, although I suppose I could have witnessed a completely different fault.

Jason, I was referring to Robby's issue with the 3D shifting (not holding at user set values in LG's settings). I'm not familiar with what you were experiencing with the cross-talk problem. Is it as Robby described in his post? Then that would probably be the same issue.

And as far as that's concerned: I did not recommend a factory reset. However, for many who've experienced the shifting issue--including Robby, even after having his set "repaired"--the workaround seems to be: Leave LG's 3D settings at defaults for genuine 3D sources via Blu-ray and other inputs where the issue is observed: Viewpoint: 0, Depth 10 (with '3D pattern recognition' on, the set will automatically default to these settings in 'manual' mode when a native 3D signal is detected; leave it be). For native 3D sources, this seems to do the trick; 3D is stable and delivered as intended. If additional 3D adjustment is desired, I recommend making any such changes--such as depth--in the Blu-ray player settings (if supported). In my tests, such adjustments are stable on the LG...which points to the issue being with LG's proprietary 3D settings/circuitry, and not the set's ability to display stable 3D as delivered by another device. I do agree that if 3D shifting still presents with native 3D content under LG's default values--which I understand was your experience--then a different, more serious issue may be present for which servicing would be recommended...

See my previous post for more on LG's '2D to 3D' mode, in which the LM7600 behaves a little differently than with genuine 3D content...