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It depends on the set. There were split carrier sound and inter-carrier sound sets. Split sound sets you fine tune for best audio and best picture should match that. Inter-carrier sets (sound splits after the video detector) you tune for best picture and sound should automatically be good.
On split-carrier sets if sound and picture don't line up you need to give the set a full alignment.... At least that's the "proper way". I've found if the video alignment is good enough to get a fairly perfect picture with a Philips PM5544 test pattern I can usually walk the sound alignment by ear to a state where the set works as good as you'd expect a new set to...All split sound sets are the old 21MHz IF and I don't have alignment gear for that frequency so the "proper way" isn't an option for me.
Inter-carrier sets you can align the sound as needed without touching anything else and it will be fine and proper.
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