LG - RT42PX10 plasma - out of sync problem

[AdaM]

Hi

Ive had this plasma for a week and ive noticed on some TV shows, mainly
channel 10 that the sound is out of sync with the video.
Some shows are worse than others.

The plasma is hooked up via foxtel (cable) and also via the antenna and i
get the same problem via both. Ive checked out a couple of forums and other
people are having the same problme.

I called LG and they said its the reception thats the problem. But i thought
its coming straight via my foxtel box. Im going to give them another call
2moro and see what they say again but i thought in the meantime was
wondering if anyone else had an idea?

Cheers

Adam

[Chris_of_76]

a woman came in today with two of them for me to install on friday, mmmm
sounds like an adventure. lol
Chris
"AdaM" <abugeja1spam@optusnet.com.au> wrote in message
news:40d913c0$0$18669$afc38c87@news.optusnet.com.a u...
> Hi
>
> Ive had this plasma for a week and ive noticed on some TV shows, mainly
> channel 10 that the sound is out of sync with the video.
> Some shows are worse than others.
>
> The plasma is hooked up via foxtel (cable) and also via the antenna and i
> get the same problem via both. Ive checked out a couple of forums and
other
> people are having the same problme.
>
> I called LG and they said its the reception thats the problem. But i
thought
> its coming straight via my foxtel box. Im going to give them another call
> 2moro and see what they say again but i thought in the meantime was
> wondering if anyone else had an idea?
>
> Cheers
>
> Adam
>
>

[AdaM]

2?

"Chris_of_76" <76@spam.net.au> wrote in message
news:40d94395@news.comindico.com.au...
> a woman came in today with two of them for me to install on friday, mmmm
> sounds like an adventure. lol
> Chris
> "AdaM" <abugeja1spam@optusnet.com.au> wrote in message
> news:40d913c0$0$18669$afc38c87@news.optusnet.com.a u...
> > Hi
> >
> > Ive had this plasma for a week and ive noticed on some TV shows, mainly
> > channel 10 that the sound is out of sync with the video.
> > Some shows are worse than others.
> >
> > The plasma is hooked up via foxtel (cable) and also via the antenna and
i
> > get the same problem via both. Ive checked out a couple of forums and
> other
> > people are having the same problme.
> >
> > I called LG and they said its the reception thats the problem. But i
> thought
> > its coming straight via my foxtel box. Im going to give them another
call
> > 2moro and see what they say again but i thought in the meantime was
> > wondering if anyone else had an idea?
> >
> > Cheers
> >
> > Adam
> >
> >
>
>

[Chris_of_76]

they bought 4 actually. lol. one to her son and his friend and the
other?mmmm.
they bought them from bing lee, apparently a bundle deal with a DVD-rw and a
DSTB(via redemption-makes it hard to connect) for $4k ea, maybe volume gets
a price break?
It looks nice, as looks are important to impress your friends. lol
It worked ok, but I left quickly in case it did what u said.
Chris


"AdaM" <abugeja1spam@optusnet.com.au> wrote in message
news:40d98f19$0$25461$afc38c87@news.optusnet.com.a u...
> 2?
>
> "Chris_of_76" <76@spam.net.au> wrote in message
> news:40d94395@news.comindico.com.au...
> > a woman came in today with two of them for me to install on friday, mmmm
> > sounds like an adventure. lol
> > Chris
> > "AdaM" <abugeja1spam@optusnet.com.au> wrote in message
> > news:40d913c0$0$18669$afc38c87@news.optusnet.com.a u...
> > > Hi
> > >
> > > Ive had this plasma for a week and ive noticed on some TV shows,
mainly
> > > channel 10 that the sound is out of sync with the video.
> > > Some shows are worse than others.
> > >
> > > The plasma is hooked up via foxtel (cable) and also via the antenna
and
> i
> > > get the same problem via both. Ive checked out a couple of forums and
> > other
> > > people are having the same problme.
> > >
> > > I called LG and they said its the reception thats the problem. But i
> > thought
> > > its coming straight via my foxtel box. Im going to give them another
> call
> > > 2moro and see what they say again but i thought in the meantime was
> > > wondering if anyone else had an idea?
> > >
> > > Cheers
> > >
> > > Adam
> > >
> > >
> >
> >
>
>

[starrenburg]

this is a post made simply to get the thread high enough to get Mr "Truly Wondrous" off the page.

[Cubase]

Okay well, I got a bit tired of reading around and finding a lack of answers and stumbled on a few articles related to this problem... after heavy reserch, I was able to come up with the following explination and solution...

I have the same LG model and have had it for just under a week and have no intention of returning it... simple because I did my research to try and rectify the problem rather than rat upon it...

I have read various articles related to this sync problem and it has been reported in over two thirds of plasma display models... hence, it is a PDP problem and not an LG problem.

The reason for the delay is the extended time it takes to render the images compared to CRT monitors... mainly because PDP panels focus a lot on image purification, filtering and up to Five Field Processing, which is a method of processing images up to five fields at a time for better image quality. However, it is safe to say that 2 field processing is more than enough for very fine picture quality... considering PAL signals only contain two fields anyway. It's mainly a flicker reduction issue, and only those who are really paying attention to the footage on a frame-by-frame basis will come even close to noticing a difference between 5 field and 2 field processing.

CRT's do not have this problem as they have minimum if not no image processing of filtering at all, meaning that the video is rendered within less than around 2-3ms after the audio (a truly undetectable difference).

Why does this happen with certain video channels?

If the signal is weaker, the signal requires more processing to strengthen it and bring it up to scratch for optimum viewing... this is why it appears to happen with some channels, and not others. Also, it can happen on a show-to-show basis, once again, because some shows are produced better than others, meaning some are transmitted and higher quality than others. As your PDP or LCD display receives these signals (lets talk about built-in tuners here), if it is a fairly weak signal the receiver in the TV will attempt to focus more workload on processing the picture, causing a significant latency of anything between 20ms and 100ms (60-100ms being the beginnings of a noticeable shift).

If it is a signal problem, why does it affect my foxtel?

Okay, lets not forget, standard Foxtel is still an ANALOGUE signal (Unless of course you now have Foxtel Digital), so of course, as unless your analogue signal is transmitted at a certain quality (and not ALL Fox programs do) your display will once again work hard to perfect the images for you... and there you have it, a delay with Foxtel aswell. Just because Foxtel is transmitted via cable, many people forget that it is still the same signal we receive on normal TV, the only exception being; one travels through the air, and the other through fibre optics. Hence, when the quality of the program and the signal is a bit on the weak side, you will get a delay with most PDP's and LCD's.

You said two thirds have this problem... where can I find the other third of PDP's and LCD's?

The only models that are coming out with lip-sync technology are the high end models... mainly because they are the ones with the most eye-candy features, hence, they will contain the biggest lag. Also, seeing as these models are $9,000 upwards in price, the cost of adding these features is pretty much minute in comparison. Also, you will not see this problem with the low-end models, as they do not have many filters at all, which results in less time required to process video signals.

The LG RT-42 PX10 is not a low end market product, but unfortunately, it fits in with the rest of the mid-end PDP's that seem to be stuck in the giant lip-sync black hole.

Any solutions to the problem?

Firstly, in my opinion, returning the product as your first option is very weak... considering that if you were to research for a little while before and after purchasing, you would notice a fair list of options in which I am about to discuss. Also, I personally don't like it because once the product is returned, it is likely to be sold off at a cheaper price, encouraging a poor fool to buy it without conducting any research at all.

Anyway, onto some solutions:

Upgrade to Digital TV and/or Foxtel Digital

If you have bought yourself a PDP or LCD, and have had no inclination to upgrade to digital television, you are in for some shit... seeing that in less than 3 years time, Analogue TV will be going off line permanently. Digital signals are sharp, clear and are at the 16:9 wide screen ratio perfect and ready for PDP's and LCD's.

This means:

Less signal processing and filtering required, resulting in a much lower video over audio latency.

Less field and scaling processing, seeing as the signals are already broadcast at 16:9 and at the correct resolution, there is no image conversion required.

When connecting you STB (Set top box), try and use RGB component connections, which are of the highest quality.

OR

Plug you Receiver directly into you Hi-Fi system

I read earlier by a poster on this forum that this will aid in bringing the TV out of the loop when receiving the signal which results in a trouble free signal, but this does not work with everybody.

Mainly because, regardless of whether you signal is going via your 5.1 system, of into the TV, the signal reaches the TV at the same quality and strength no matter what kind of detours it takes, which means the TV will process the signal coming from the Sound System just as much as it would if the signal was coming directly into the TV. Even though the audio is served up via the stereo.

The only way to really resolve this issue using your sound system is to use you speaker distance set-up feature (common in most 5.1 systems, enabling you do designate the distances between yourself and the speakers). Adjusting this feature will place a small delay on the audio , eventually brining the audio and the image in sync.

There is one problem... If you have set up to have a small delay in Audio for the laggy channel 10, ad the switched over to the seemingly fine Channel 9, you will notice that now your audio is delayed, thus brining your visuals out of synch, seeing as you stereo is still set up to delay the sound for Channel 10.... Yes, a very big predicament.

In the end it is up to you.... I can almost guarantee that if you connect up your digital components correctly (STB's and FDB's) using high quality connections (like RGB component) you will eliminate this problem swiftly.

Many plasma companies are already in touch with TV stations to encourage them to upgrade their Analogue broadcasting signals to compensate for this aswell, so you can expect to see a visual improvement within the next year or so.

If you believe that you can return a certain model of plasma or LCD with this problem and get another in the same price range and be rid of the error, you are dreaming... Your only way out is to either use some of these methods to get your audio up to scratch, of fork over $10,000 + for a model with the extended features. Unless of course you want to buy a second hand PDP with a 5,000 hour half life that does not have the enough eye candy to make the footy seem less like an underwater experience.

I am certainly happy that I have chosen to stay with this model after conducting this research... this model is truly a great find, especially at only $4000!

-Cub. =o)

[ausiebob]

Sorry but the Lg Plasma is crap, Ok at $4000 I guess but don't expect too much.

Aussie bob

[Cubase]

Aussie bob,

This is supposed to be a help and advice thread here... not that I am trying to argue with you... but for the benefit of the rest of the posters, perhaps you could give us some of your insight, rather than simply baggin something using a total of 1 word... Or is it that you don't have any insight to indulge us with, rather, more un-aimed comments?

I beleive the LG is a great piece of equipemnt, and that anyone's discouragement should be of their own opinion, and not just a hunch on your part. Prove me wrong...

-Cub.

[PhilA]

I have also recently purchased the plasma screen in question and experienced similar sound sync problems.

Has anyone connected up via a digital receiver?

Did this fix the problem?

Phil

[PhilA]

Just contacted LG, who tell me they have a fix for the problem that is covered under warranty and gave me name of service agents to contact.

Unfortunately they tell me that parts aren't available yet. Mat be available in about 2 weeks!

If we all contact LG maybe they'll get themselves going and get these parts in.

Phil

[ausiebob]

Aussie bob,

This is supposed to be a help and advice thread here... not that I am trying to argue with you... but for the benefit of the rest of the posters, perhaps you could give us some of your insight, rather than simply baggin something using a total of 1 word... Or is it that you don't have any insight to indulge us with, rather, more un-aimed comments?

I beleive the LG is a great piece of equipemnt, and that anyone's discouragement should be of their own opinion, and not just a hunch on your part. Prove me wrong...

-Cub.
Bloody simple, I had one, (for two weeks), It cannot handle analogue signals, as it tends to polarize the picture, probably due to the line rate. However, as I'm NOT as knowledgable as your good self, I can only answer as I see fit. IE. LG Plasma IS a load of crap!.

Aussie bob

[amber.2]

well ive had a plasma lg panel for 11 months and 3 weeks and last night it karked it the screen went all colors of the rainbow and that was it . rang service this morning and are sending some one wednesday. i only had 1 week left on the warranty . and i was just watching a dvd .

[Simon Gribble]

PhilA <PhilA.19tpgb@no-mx.forums.eyo.com.au> wrote in message news:<PhilA.19tpgb@no-mx.forums.eyo.com.au>...
> Just contacted LG, who tell me they have a fix for the problem that is
> covered under warranty and gave me name of service agents to contact.
>
> Unfortunately they tell me that parts aren't available yet. Mat be
> available in about 2 weeks!

Was this a fix for the sync issue or the solarisation of the picture
(easy to see on skin tones) ?

[PhilA]

The fix was for the audio sync issue.

Not sure what you mean about the solarisation of the picture. Can you describe it? Does it do this when using a digital receiver?

[ausiebob]

Polorizing/solarizing whatever, Usualy happens when viewing via analogue tuner or from a vcr. It gives a painted look mainly in areas like cheekbones (they kinda look "chiselled") Normally not noticed so much vis Digital box. (although they ALL pixalate badly following a moving object, ie. you know when the camera is following the flight of a golf ball, the ball looks fine but the ground underneath builds up like building blocks)! This technology is still a long way off perfect, (in my opinion)

Cheers,

Aussie bob

[Simon Gribble]

PhilA <PhilA.19zlhm@no-mx.forums.eyo.com.au> wrote in message news:<PhilA.19zlhm@no-mx.forums.eyo.com.au>...
> The fix was for the audio sync issue.
>
> Not sure what you mean about the solarisation of the picture. Can you
> describe it? Does it do this when using a digital receiver?

I have never used the internal tuner on the plasma so have not
experienced the audio sync issue.

The solarisation of the picture is easily noticed on skin tones, if
you look at a persons face and the camera pans the definition on the
face will be lost. This is apparently the nature of plasma displays
but the LG seems to be the worst performer in this area.

This happens with svideo, component, & DVI inputs.

It has been discussed here:
http://www.dtvforum.info/index.php?showtopic=6108

[slimmm]

i have found no lip sync problems with my lg plasmaRT42PX10 WHICH I HAVE HAD FOR 10 DAYS, HOWEVER I WAS AT FIRST DISSAPOINTED WITH THE PICTURE QUALITY , MAINLY SOLORISATION AS DISCUSSED.

I HAVE NOW SOLVED MOST OF THIS ISSUE WHEN PLAYING DVD. ( NOT RECEIVED THE SET TOP BOX YET TO COMMENT ON THIS AREA)

AT FIRST I WAS PLAYING DVD WITH MY OLDER PIONEER DV 344. I CONNECTED THIS TO COMPONANT WITH SOME "MONSTER" CABLES AND THIS IMPROOVED THE PICTURE QUALITY. BUT STILL NOT THE BEST.

I THEN CONNECTED MY PIONEER DVD RECORDER (DV310S) WITH PROGRESSIVE SCAN MODE ON . THIS SEEMS TO HAVE DONE THE TRICK AS FAR AS THE SOLARISATION PROBELM AND IM VERY HAPPY WITH THE RESULT.

IM WAITING ON THE STB NOW TO SEE HOW THE TV LOOKS. ALTHOUGH WHEN VIEWED THROUGH H THE DVD RECORDER ITS A BIG IMPROOVEMENT ON THE TUNER BUILT INTO THE UNIT.

THIS WAS A SECOND TV ROOM UNIT AND THEREFORE PRICE WAS AN ISSUE. HAVING SORTED THE ABOVE I NOW FEEL THE UNIT IS GOOD VALUE FOR THE MONEY !!! AND UNFORTUNATLY HAVING BEEN TOLD BY LG THAT SOLARISATION OCCURS DUE TO POOR INPUT SIGNALS OF THE PICTURE, MAY HAVE TO AGREE....A LITTLE !!!



PhilA <PhilA.19zlhm@no-mx.forums.eyo.com.au> wrote in message news:<PhilA.19zlhm@no-mx.forums.eyo.com.au>...
> The fix was for the audio sync issue.
>
> Not sure what you mean about the solarisation of the picture. Can you
> describe it? Does it do this when using a digital receiver?

I have never used the internal tuner on the plasma so have not
experienced the audio sync issue.

The solarisation of the picture is easily noticed on skin tones, if
you look at a persons face and the camera pans the definition on the
face will be lost. This is apparently the nature of plasma displays
but the LG seems to be the worst performer in this area.

This happens with svideo, component, & DVI inputs.

It has been discussed here:
http://www.dtvforum.info/index.php?showtopic=6108

[slimmm]

one thing i forgot to mention... turn the XD mode to "OFF"



i have found no lip sync problems with my lg plasmaRT42PX10 WHICH I HAVE HAD FOR 10 DAYS, HOWEVER I WAS AT FIRST DISSAPOINTED WITH THE PICTURE QUALITY , MAINLY SOLORISATION AS DISCUSSED.

I HAVE NOW SOLVED MOST OF THIS ISSUE WHEN PLAYING DVD. ( NOT RECEIVED THE SET TOP BOX YET TO COMMENT ON THIS AREA)

AT FIRST I WAS PLAYING DVD WITH MY OLDER PIONEER DV 344. I CONNECTED THIS TO COMPONANT WITH SOME "MONSTER" CABLES AND THIS IMPROOVED THE PICTURE QUALITY. BUT STILL NOT THE BEST.

I THEN CONNECTED MY PIONEER DVD RECORDER (DV310S) WITH PROGRESSIVE SCAN MODE ON . THIS SEEMS TO HAVE DONE THE TRICK AS FAR AS THE SOLARISATION PROBELM AND IM VERY HAPPY WITH THE RESULT.

IM WAITING ON THE STB NOW TO SEE HOW THE TV LOOKS. ALTHOUGH WHEN VIEWED THROUGH H THE DVD RECORDER ITS A BIG IMPROOVEMENT ON THE TUNER BUILT INTO THE UNIT.

THIS WAS A SECOND TV ROOM UNIT AND THEREFORE PRICE WAS AN ISSUE. HAVING SORTED THE ABOVE I NOW FEEL THE UNIT IS GOOD VALUE FOR THE MONEY !!! AND UNFORTUNATLY HAVING BEEN TOLD BY LG THAT SOLARISATION OCCURS DUE TO POOR INPUT SIGNALS OF THE PICTURE, MAY HAVE TO AGREE....A LITTLE !!!

[Dyna Soar]

slimmm wrote:
> one thing i forgot to mention... turn the XD mode to "OFF"

And turn your caps lock to off.


--
Dyna.

A clear conscience is the sign of a bad memory.

[slimmm]

hey, i got no fingers & my eyesights poor... give us a break!

slimmm wrote:
> one thing i forgot to mention... turn the XD mode to "OFF"

And turn your caps lock to off.


--
Dyna.

A clear conscience is the sign of a bad memory.