You may be right. I tried tweaking the sound IF to move it into the "good mono picture" zone. I had to crank the adjuster all the way to the end of its range to get an improvement.
Maybe I'll push this one back against the wall for now. If I want to collect the gear & expertise to do an alignment, I'd rather practice on a B/W that already works well, rather than this guy.
It's frustrating when the colors show up well in test patterns, but not otherwise.
Phil Nelson
Phil's Old Radios
http://antiqueradio.org/index.html