Jumpers will do it every time if they go bad. To find out what port it is, 
with it hooked up and radio on so it's seeing it, with windows 7, junk that 
it is, go to the start menu, type device manager in the search box and hit 
enter, when it comes up to device manager, to go ports com and LPT, once you 
open that it should tell you which port that radio's on. It can be changed 
from there too, let me know if you need help I need to go through it to 
remember since I gave up on windows 7 on my radio desk computer and now have 
a computer I put together with windows 2000 on it right now, may go to XP 
but anyway, windows 7 is nothing but a headache for me so I went to the 
workshop and threw something together I can actually use, with real serial 
ports if you can believe that.
----- Original Message ----- 
From: "Tom Behler" <[log in to unmask]>
To: <[log in to unmask]>
Sent: Monday, September 05, 2011 3:00 PM
Subject: TS590 update


> Hi, everyone.
>
> Well, to make a long story short, I found the problem that was causing my
> TS590 to behave erradically yesterday.
>
> It was a bad jumper going from the rig to my amplifier, with an 
> intermittent
> connection.
>
> All is well with the rig now, although I'm having some significant 
> headaches
> trying to get the 590 to communicate with my Windows 7 laptop via the USB
> virtual com port driver.
>
> Steve (Kw3A) is helping me with this, and I'll accept any hints others 
> have
> to provide.
>
> I believe I've installed the ARCP 590 software, and the virtual USB 
> driver,
> but am having trouble finding out which port was assigned by the USB 
> driver.
> Once I know this, I'll get back in there and try things again.
>
> 73 from Tom Behler: KB8TYJ