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Perhaps I was not clear enough...If audio and video don't line up on the fine tuning ONLY adjust the audio.....Video IF should NEVER be touched without a CALIBRATED SWEEP/Marker, a scope and knowledge of video alignment or a junk set to experiment with first.
It is challenging to get Vid IF right even when you have the correct test equip/experience doing, and a 'visual' alignment correctly is something of a miracle...If achieved. ....Hence why I said don't touch the video IF unless the picture is really bad at best...You don't want to mess with the video IF unless it is bad enough that you have nothing to loose.
Most sets have OSC adjustments in the tuner to re-center fine tuning.
What I'd do if handed that set is try to EXACTLY undo all vid IF adjustments you've done*, get it working, walk the audio to the video, then use the tuner adjustments to center the fine tuning.
*It is possible that if you reverse what you did to the slug of the shorted coil that it will unshort....If that don't work get the can off of it and see if you can find/clear the short. If that fails you'll need a new coil.
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