Samsung forum

General discussion

Video/sound sync problem

by Bill Osler / April 14, 2009 10:48 AM PDT

I have a Samsung LCD TV model LN52A650A. I'm trying to fix the video/sound synchronization. The cable box connects to an Onkyo receiver, and the video feeds from the receiver to the TV. The cable box is Scientific Atlanta IPN330HD. All connections are HDMI. I also have a Samsung BDP2500 BluRay connected to the receiver. So far I have not seen any sync problems on discs played on the BDP2500. I'm trying to figure out whether the problem is in the TV, the receiver, the cable box or the source.

I did test a direct connection between the cable box and the TV and that does not seem to fix the problem so I don't think it's the receiver. That leaves the cable box, TV and the source. My understanding is that the HDMI protocols are supposed to include provisions for maintaining the A/V sync but something is not working. I can sometimes compensate by setting the audio delay in the receiver but that doesn't help if the audio is running behind the video as it sometimes does.

Is there any good way to sort out which is the culprit? Or any adjustment in the TV to help compensate? Suggestions?


Discussion is locked
You are posting a reply to: Video/sound sync problem
The posting of advertisements, profanity, or personal attacks is prohibited. Please refer to our CNET Forums policies for details. All submitted content is subject to our Terms of Use.
Track this discussion and email me when there are updates

If you're asking for technical help, please be sure to include all your system info, including operating system, model number, and any other specifics related to the problem. Also please exercise your best judgment when posting in the forums--revealing personal information such as your e-mail address, telephone number, and address is not recommended.

You are reporting the following post: Video/sound sync problem
This post has been flagged and will be reviewed by our staff. Thank you for helping us maintain CNET's great community.
Sorry, there was a problem flagging this post. Please try again now or at a later time.
If you believe this post is offensive or violates the CNET Forums' Usage policies, you can report it below (this will not automatically remove the post). Once reported, our moderators will be notified and the post will be reviewed.
Collapse -
A source
by CHUCKMALLEY / April 15, 2009 1:36 AM PDT

I don't think the cable box should be hooked directly to the receiver.However,go to the site is free,you add your components,and it tells you and SHOWS you how to hook up correctly. Some things may seem redundant (why are they telling me to do it that way?)but you'll be pleased with the results.

Collapse -
Maybe someday ... not now
by Bill Osler / April 15, 2009 12:07 PM PDT
In reply to: A source

The Wirewize site is being redesigned. They don't say when they will be back up.

Why are you unenthusiastic about routing the cable box through the receiver? In theory the cable box can send out 5.1 sound, though I don't have it set to do so. If I route the cable signal through the TV all I can get is stereo. If/when I actually get HD content with 5.1 sound from the cable company I won't want to settle for stereo. If I send video to the TV and sound to the receiver then I lose all hope of having the receiver automatically correct the sync problems between the video and audio.

Popular Forums
Computer Newbies 10,686 discussions
Computer Help 54,365 discussions
Laptops 21,181 discussions
Networking & Wireless 16,313 discussions
Phones 17,137 discussions
Security 31,287 discussions
TVs & Home Theaters 22,101 discussions
Windows 7 8,164 discussions
Windows 10 2,657 discussions

Does BMW or Volvo do it best?

Pint-size luxury and funky style

Shopping for a new car this weekend? See how the BMW X2 stacks up against the Volvo XC40 in our side-by-side comparison.