I see the ringing, but what's the other stuff

[TinCanAlley]

Okay, started scoping again. The last time I got the ABL scoped and saw the ringing. Today I decided to make sure the pulses from the horizontal board are correct before going on to other areas. They all check out.

Since the ringing was found at the ABL, I figured the best route was to go backwards from there. I just scoped the vertical blanker's base and got the attached image. That's a crap load of ringing! Not only that, but what are the stray lines in the waveform? I did my best to capture them as they're moving around quite a bit. I don't know if it's bad or part of the form.

Anyway, I'll be moving my way up the chain. Wish me luck.