Mine works great. Are you hitting function then the button to turn on the 
notch or just that button? You need to hit function first then that button 
and that will turn it on or off but either way, when it's on that knob will 
work. I use it all the time.
----- Original Message ----- 
From: "John J. Jacques" <[log in to unmask]>
To: <[log in to unmask]>
Sent: Monday, September 01, 2014 7:14 PM
Subject: Re: Getting the most out of your TS-590


> Hi all, I have noticed on the TS2000, that the manual notch filter
> doesn't seem to work.  The automatic notch filter seems to work, but when
> I press the button for the manual one, the knob abouve the main band
> volume does nothing.  I love the reciever on the Kenwood over the Icom
> IC706, the selectivity is so much better.
>
> 73:
> John