Question: Which input should I trust for the color amp alignment in regards to feeding the B&K 415 signal into the tuner vs test point C1 (post video detector)?
Connecting the B&K 415 to the tuner with the output set to IF I can adjust L19 to where I see the 3.58mc marker decrease and then have a defined low spot, also L17 allows me to create a flat-ish response with the 3.08mc and 4.08mc markers even.
Below is the optimized response curve with the B&K 415 signal input at the tuner, the 3.58mc marker is at its lowest response, and then the 3.08mc and 4.08mc markers are even. The 2nd pic is then the resultant response curve when moving the input to C1 and setting the output to video, note leaving it on IF works but barely yields a response curve. I am inclined to think I have it set correct this way and the "odd" response curve at C1 is due to the B&K 415 vs a mis-alignment.
