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Tom Wilson posted a topic in LG webOS Smart TV DiscussionIf you want the whole story, read this: https://www.avforums.com/threads/lg-43uj630v-audio-output-delay-gets-worse-the-longer-tv-is-on-arc-digital-optical.2138124/ Otherwise, here's the relatively short and sweet version: I bought an LG 43UJ630V and a Samsung HW-K450 2 weeks ago. When connected to the soundbar (either digital optical or HDMI ARC), they are in sync. When left on for around 2 hours though, I'll start noticing the lips are not correctly syncing up with the words. By the 3-4 hour mark being left on, it's atrocious. I expect to have to have to set the av sync initially, but changing it every hour as it slowly drifts out of sync - this is clearly a technical fault. When I plug the soundbar directly into my Sky box (set-top box) there are no issues of drifting audio sync. Changing settings, updating firmware, using different wires, nothing makes a jot of difference unfortunately. I determined the problem was with the processing of the digital output audio signal in the TV's internals. I returned my TV for a replacement, and bought a new sound bar to go with it - an LG SH4D 2.1 - figuring that the samsung soundbar may have been incompatible. Yesterday I set it all up, but found after 3-4 hours of being left on, the audio was wildly out of sync again. https://youtu.be/hmH5jsu20AQ In this example I set the audio so it would output via digital output and internal speakers. The latency between the 2 is so bad you can't even call it echo. This demonstrates how badly out of sync the soundbar output gets compared to the internal speaker. Remember - this is my second 43UJ630V and a different soundbar, and yet the problem returned in exactly the same way. After recording that video I tried connecting my Samsung soundbar instead and it was exactly the same. There is clearly a fault with this model or the entire UJ630V range. I hope it can be fixed in a firmware update. Ignoring momentarily the fault, and the countless hours and stress this has caused - I rather like this model. I'd prefer to fix it instead of sending it back for a refund. I don't understand why I cannot find anyone else reporting the same problems. When I spoke to LG a week ago describing the problem, they told me a fault like this hadn't been reported before... But I've proven beyond a doubt that the problem is there, and probably afflicts a great number of people. I've emailed LG but I'm sure they'll just fob me off again. I plan to give them a ring later, but again, I'm not sure what good this will do. I've diagnosed the problem, and I cannot be the only one experiencing this problem. It is probably addressable in a firmware update if I can bring it LG's attention. Any help or suggestions would be appreciated.
TV MODEL: LG 43UJ635V DATE OF PURCHASE: 21/11/2017 (4 days ago from post date) RETAILER: ARGOS UK WEBOS VERSION: Can't check right now but after I got the TV I updated straightaway to 4.7.XX INTERNET SPEED: 75Mbps Down / 20 Mbps Up Hello, I've recently purchased the LG 43UJ635V, as soon as I turned it on and went through first time setup I noticed there was a bit of lag in the animation when I pressed the home button (the moment all the tiles 'bounce' up), however whenever I get off that menu the animation is smooth and everything else is fine. This always happens, I have tried resetting the TV to its initial state and nothing has changed. - Just wondering if anyone else has had that issue? At one point I changed some of the image quality settings and the whole OS just started lagging making it difficult to navigate so I had to reset the TV for the 3rd time. Also, occasionally when using apps such as YouTube or the web browser the app will restart with a notification in the top right saying the restart was to clear some memory. Although this isn't too common, I've seen other posts from months ago about people having a similar issue but the apps constantly restart. I close all recent apps which doesn't change the lag on the home menu but I haven't seen the restart notification in a while which seems like a good sign but I also have been using the internet browser much. With all the negative experiences I've read about, (related to the memory and general lag) I'm not sure whether I should return the TV or not. Thank you. TL;DR: Lag when pressing the home button and all icons appear but no lag when returning to the current app, occasional app restarts due to a low amount of memory.
My LG 55" UJ630v , WebOS version: 03.60.15 When using Home Audio system, and streaming TV sound to audio system via bluetooth, there is always sound lag (lip sync delay)... i failed to find any setting for sound/audio speed to be able synchronize audio with TV. Please advise.