TVs & Home Theaters forum

General discussion

Rolling horizontal lines on my new Panasonic plasma TV

by gavinrs / July 29, 2007 10:50 AM PDT

I have a Pioneer VSX-9110TXV-k receiver with a Time Warner supplied Cable box connected via HDMI to my Panasonic TH-50PX77U PLASMA TV.

I get rolling horizontal line on the picture. But they appear to be worse when playing TV versus watching a DVD.

Have replaced the cable between the Settop box and the receiver but did not correct the problem.

Any suggestions much appreciated.

Post a reply
Discussion is locked
You are posting a reply to: Rolling horizontal lines on my new Panasonic plasma TV
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: Rolling horizontal lines on my new Panasonic plasma TV
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 -
To trouble shoot unhook things.
by jcrobso / July 30, 2007 1:41 AM PDT

Unhook every thing but the DVD player, any lines???
If none then add the Pioneer receiver, any lines??
You keep adding until the problem occurs then repost with the info. John

Collapse -
Rolling lines on a plasma tv
by Toddlaveech / August 4, 2007 3:34 PM PDT

I install home theater equipment for a living and have seen this problem quite frequently, it is called a ground loop. It is caused from your cable not having a proper ground and using your television as the path of least resistance. There are a few reasons for this problem:

1. Your cable isn't grounded to your houses electrical ground, which is solved by going to any Home Depot or Radio Shack and getting a grounding terminal and connecting it to either your electrical service or your cold water ground.

2. If that doesn't fix it, another cause is the components are farther away from a good groung than your tv is, and the distortion is finding an easier path through your tv to ground. A solution is to have a circuit ran to the outlet your tv is plugged into and tied into the same cicuit that your equipment is. This makes the path to ground easier through your equipment than your tv because it is farther away.

3. Another way that may fix it is getting a good surge suppressor that conditions the power and has a coaxial input this is a very good idea either way. There is also a devise that you can plug your cables into that will eliminate the problem also but I am not sure on the cost so if you google ground loops I'm sure you will find even more solutions.


Good luck

Popular Forums
icon
Computer Help 47,885 discussions
icon
Computer Newbies 10,322 discussions
icon
iPhones, iPods, & iPads 3,188 discussions
icon
Security 30,333 discussions
icon
TVs & Home Theaters 20,177 discussions
icon
HDTV Picture Setting 1,932 discussions
icon
Phones 15,713 discussions
icon
Windows 7 6,210 discussions
icon
Networking & Wireless 14,510 discussions

Tech for the school year

Smart tech for smart students

Forget the pencils and notebooks. Gear up your students with these portable and powerful note-taking machines.