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I used the R.L. Goodman Zenith Color TV Service Manual IF alignment procedure. It took three iterations but the result matched the sweep diagram pretty well. Here are pictures of the Goodman response curve, the result I got, and the Multiburst response. The alignment got rid of some of the ringing seen on the CRT, but what was left was a dimmer wide repeating pattern. Here is a picture of the video waveform before and after the delay line. I found that the delay line termination potentiometer was open. I opened it and cleaned off the oxidation. I then worked fine, so I put it back in.
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