[keith49vj3]

I've probably only done a half dozen or so alignments so my experience is minimal but I think something is wrong.  The first alignment  step is to inject a 455kH signal into the #1 antenna post and  adjust the IF cans.  I'm doing this one on my bench since i don't think I need the antenna's attached for step one.  As I peak the IF cans I can hear the signal generator through my speaker get louder while the voltage goes up on my output meter.  However, if I go too far the frequency coming out of the speaker drops while the voltage on the output meter is still increasing.  So, if I peak the IF cans based on the meter and the  proper frequency coming out of the speaker everything is fine but when I unplug the generator I get a loud low frequency buzzing noise coming out of the speaker.  I'm wondering if the previous repairman found something wrong with this radio and gave up.  When i got this radio only about half of the caps had been replaced and the IF cans were loose in the chassis and one had the nut missing on the top of the can. Could it be that I need to do all the alignment steps with the antenna's attached or am I looking at a bigger problem?
Thanks and Happy New Year.
Keith