"contrast is poor and washed out" "inadequate vertical height" "the vertical to lock but the horizontal will not"
These are all clues to something, but what exactly is the hard part. It still may be a power issue, who knows.
This set pulls sync from the final video amp, at DC restoration, so if you have poor contrast (weak video), makes sense for there to be poor lock as well, but the lack of height is also a sign of a problem someplace.
Still much to look into.
