I'm aware this topic has been discussed before, but I'd just like to open further discussion on the validity and/or consequences of using a headphone-out feed from a portable CD player vs. a line-out feed. I've had the chance to do a couple of oscilloscope captures of both and I'm fairly sure both would give an acceptable NBTV image.
These images were recorded at the signal-in of the LED driver circuit board while track #5 (white screen) was playing on the CD.
Comments?