Question about Samsung LE40R72BDX 40 in. HD-Ready LCD Television

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Optical output on tv through dvd home cinema out of sync

I HAVE A NEW 40IN SAMSUNG LCD HD READY TV AND SAMSUNG DVD HOME CINEMA WITH A HDMI AND OPTICAL CABLES FITTED BUT THE SOUND ON THE TV THROUGH THE DVD RECIEVER IS OUT SYNC THE VOICES GO DEEP AND THE SOUND CUTS OUT ALTOGETHER, SOMETIMES IT WORKS FINE AT FIRST THEN IT GOES OUT OF SYNC ETC AS ABOVE. I HAVE BEEN BACK TO THE SHOP BUT NO MUCH HELP WHAT IS THE USE OF THE OPTICAL CABLE OR THIS ANYNET DEVICE ON BOTH IF THE SOUND IS ANNOYING. TV IS LE40R8 DVD HTX30. I HAVE TRIED TO SET THE AV SYNC DIFFERENT AND MOVED THE 5.1 SPEAKERS ALSO NO HELP. out of sync

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  • benandi Feb 20, 2008

    I just bought a samsung le40r8
    Picture is great, but when I plug in my external audio amp the audio is completely out of sync with the picture.
    In fact, the audio coming out of the phono sockets is out of sync with the internal speakers so if you listen to them both you get a phasey echo effect.
    Is that normal?!

  • vick11 Mar 01, 2008

    new samsung tv and home cinema but after a while they go out of sync...when watching tv is so annoying when sound out of speakers dont match what is being said on tv...

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Up front, i copied this from another site, so kudos to the OP there if this works for anyone...

Hi,
This same problem had been bugging me when I bought my LE37B650, everyone suggested adjusting the delay time on my AV amp but unfortunately mine does not have this function.

Anyway I finally fixed the problem using the following steps

Before you start make a note of your menu settings as you will have to reset them after this procedure

Turn off the TV then press Info -> Menu -> Mute in sequence then turn the TV back on again. This will get you into the secret Service Menu. Go straight to the AUDIO page of the menu. Don't be tempted to fiddle with things in service menu cos you can end up in a right old pickle!

In the AUDIO page you willl notice that there is a time delay set for the internal speakers of 100ms but for some reason this is not set for the external output so all you need do is dial in a 100ms delay there and that should sort the problem. Well it fixed it for me.

Note that as soon as you enter the service menu, all your other standard menu settings are lost and the screen will be set to dynamic for some reason so you have to go through and change everything back after you have done this.

Hope this Helps


Original link: http://www.hometheaterforum.com/forum/thread/280579/audio-delay-on-samsung-650-lcd-tv

This would suggest that you CAN fix the problem with an analog amp.

Also interested to see if a 2 year old thread is alive!

Posted on May 26, 2010

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I've finally found the solution to this - after several calls with Samsung.

Basically, the analog audio output is the same signal as the digital, optical output. Both of these signals are sent _ahead_ of the picture, to give a digital amp some time in which to do its audio processing.

Samsung's solution is that I need a digital amp with an 'AV sync' setting, so I can add a bit of delay to the sounds so it waits for the picture to be in sync.

What this means, is that this Samsung TV only works properly with digital amps having 'AV sync', and it cannot work with any analog amp.

Nice.

Posted on Feb 28, 2008

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SOURCE: optical output on tv through dvd home cinema out of sync

I just had the same problem. I returned it to currys and got an exchange because I thought there was somethink wrong with the surround sound itself. I have just tried , and left for ages as it goes out of sync gradually as you said ,the red/white cables (rca , i think it's called)and it works perfectely. You can find the wire for quite cheap just type it in google.

Posted on Oct 15, 2007

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