Quote:
Originally Posted by old_coot88
Referring back to the screen shot in post# 197, if he's getting pic and sound correctly with the fine tuning around mid-range, then the osc. frequency is correct. The osc freq varies with the fine tuning, and has no bearing on the IF response curve. In fact the osc should not even be running during the alignment procedure.
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Agree with all that. I was simply suggesting that the beat frequency that the tuner is generating may not be what the IF is looking for(something other than 24MC). If I'm not mistaken Crist thought he had his IF aligned to a center frequency of 20.3MC, which he's based on what his marker generator is telling him. When he aligned it to where it's suppose to be he's not getting video. He also mentioned that he has changed caps and resistors in the tuner circuit.