Quote:
Originally Posted by old_tv_nut
You could have a debate about which is better, specifying the IF and chroma bandpass separately, or in cascade like this. But since the service info is for the cascaded case, that's what you have to use.
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That is the quandary. The simplest method to me would have been for the manufacturer to create separate RF, IF and Chroma bandpass alignment procedures with response curves published for each separately. Although to me, best overall engineering practise would be to evaluate the complete start to end response. It is more complicated and requires proper or alignment of RF and IF stages before checking the chroma response.
I did do this with the equipment I have and it worked out well.