Scan Line Issue?

[itschris]

Hey guys, I've noticed on some channels, only some of the time, that the very top edge of my screen is showing those wierd scan line marker things. It's just barely visable, but I do notice it. Again, its not all the time just once a great while on some channels. Is this normal or is my tv out of sync or something.

 

[adk highlander]

Are you using the scaler in your Pioneer or is everything passthrough? I know when scaling certain SD channels I will get a few odd lines at the top of my display. I attributed it to the TV and not my processor but I may be wrong.

 

[itschris]

I have the SA8300 cable box hooked up directly via HDMI to the TV for normal viewing. The Mits tv automatically upscales the signal. I wonder if that's the issue. I don't think there's any option to adjust.

 

[MDS]

It sounds to me like the TV is displaying non-image data, such as closed captioning, that is part of the data stream but should not be interpreted as part of the image. It sometimes becomes visible because of the TV's slight over scanning of the signal. The problem would be analogous to a media player 'playing' the ID3 tag of an MP3 - it would be interpreting text data that is not actuallly part of the audio as audio data.

'Native' or 'Dot by Dot' type modes of the TV (if it has one) should eliminate the problem.

 

[itschris]

It sounds to me like the TV is displaying non-image data, such as closed captioning, that is part of the data stream but should not be interpreted as part of the image. It sometimes becomes visible because of the TV's slight over scanning of the signal. The problem would be analogous to a media player 'playing' the ID3 tag of an MP3 - it would be interpreting text data that is not actuallly part of the audio as audio data.

'Native' or 'Dot by Dot' type modes of the TV (if it has one) should eliminate the problem.

hmmmm... so maybe it's being caused by the stretch mode I'm using for everyday stuff.

 

[Biggiesized]

This usually happens when you're viewing digital standard definition signals. That strange picture you're seeing along the edges is likely the vertical blanking interval. If you see that effect on an HD signal, it's the carrier's fault, not any of your equipment's.