Re: My first foray into Old model TV repairs. Ferguson 991T.
I agree with John (HKS) and Taz. You have worked wonders with the Ferguson and as stated in earlier posts the test card problem is the IF alignment. Your step response has ringing and in my experience after setting the correct stagger tuning of the stages you just need to make very small changes whilst looking at the test card bars and check which direction of change reduces the ringing without adversely reducing your bandwidth. Go round each of the cores iteratively making tiny changes towards a more controlled step response. You may need quite a few iterations.
Peter
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