I have been looking at how the NTSC signal is produced.
( composite signal )
I have gone to
www.ntsc-tv.com and downloaded some of the pics.
When it comes to explaining the Vertical Sync Pulses it seems to just end.( they do not go into much more detail)
Maybe I just do not get it.
The Vert. Pulses seem to go to blacker than black and then back up to black. They do not go into detail on how wide the vert. Pulse needs to be. Okay, they say 63.5 uSec for each line. It show approximately 19 to 20 lines get blanked.
VGA will be much better, I hope. Since it has the Sync Pulses on different lines.
Info. is much appreciated and needed.