More screen anomalies

[old_tv_nut]

Originally Posted by TinCanAlley

If I turn down the brightness, the screen goes black no matter how high the contrast is set. Because of this, I can't see if the bars are still there. Now if I turn the contrast all the way down and the brightness all the way up, I can see faint bars.

Ok - so basically the bars are stronger when contrast is turned up, which says that at least a good part of it is in the video signal.

[TinCanAlley]

Originally Posted by old_tv_nut

Ok - so basically the bars are stronger when contrast is turned up, which says that at least a good part of it is in the video signal.

I guess I should have asked this a long time ago, but which part of the jail bars is not supposed to be there? The light or the dark bars?

[old_tv_nut]

Originally Posted by TinCanAlley

I guess I should have asked this a long time ago, but which part of the jail bars is not supposed to be there? The light or the dark bars?

Neither. The jail bars are a plus and minus (darker and lighter) (sinusoid) added to the nominal signal. Ideally you would see only the average brightness all across a blank picture.