21CT55 #2628 restoration

[Zenith6S321]

Originally Posted by miniman82

I would not recommend attempting an alignment on this thing unless you REALLY know what you're doing.

Gulp.. Wish I new that earlier. I replaced a bunch of bad resistors in my tuner yesterday and this afternoon began the audio and picture IF alignment process. So far I have only gotten through the audio and 5th video alignment. My sweep generator is acting flakey, but I did manage to get the alignment to match the fig. 15 5th IF response sweep plot. There are markers in the dips are 41.25 and 47.25 MHz. There is a marker at 42.17 and 45.75 in the high gain area. The other marker-like stuff must be from having the 5th IF bottom and top covers off, I guess. Guess I'm committed at this point. I have only aligned three B/W set so far, so its trial by fire for me on this..

Dave