Hey, after encountering but not reading all this stuff about the TS-590 I would just say, send the damned thing back to Kenwood and demand a new one! Jim WA6EKS ----- Original Message ----- From: Butch Bussen <[log in to unmask] To: [log in to unmask] Date sent: Thu, 24 Jan 2013 20:05:36 -0800 Subject: Re: Strange TS590 Behavior I've don it lots of times. I would check voltage first at the back of the supply. If you stay from the front of the supply, that is where the 120 ac is. The pot is a little strange to find, the board is upside down, parts down, so you have to kind of reach under the board to find the pot. The board is usually mounted on top of the very large filter cap. 73 Butch WA0VJR Node 3148 Wallace, ks. On Thu, 24 Jan 2013, Tom Behler wrote: Steve: I know it shouldn't but taking the cover off the Astron makes me kind of skiddish, but I may just have to do that to check that pot and be sure my voltage isn't somehow fluctuating. If anyone has some safe and blind-friendly instructions as to how to check and possibly adjust the RS35 voltage pot, please send them my way. I want to keep it a pleasant experience. (smile) Tom Behler: KB8TYJ ----- Original Message ----- From: "Steve Dresser" <[log in to unmask] To: <[log in to unmask] Sent: Thursday, January 24, 2013 9:02 PM Subject: Re: Strange TS590 Behavior Tom, You may not need to replace the supply, but you might consider checking the pot that adjusts the voltage to make sure it hasn't gotten dirty. Steve ----- Original Message ----- From: "Tom Behler" <[log in to unmask] To: <[log in to unmask] Sent: Thursday, January 24, 2013 19:32 Subject: Re: Strange TS590 Behavior Steve: Another thing I have occasionally wondered out loud on the list about is whether my 15-year-old Astron RS35 power supply might be in need of replacement at some point. I have another 20-amp Kenwood supply here that I might just put in the circuit for a while to see if anything behaves differently. Tom Behler: KB8TYJ ----- Original Message ----- From: "Steve Dresser" <[log in to unmask] To: <[log in to unmask] Sent: Thursday, January 24, 2013 10:59 AM Subject: Re: Strange TS590 Behavior Tom, Sounds like you might be on the hairy edge of a low voltage problem. Other than that, I'd say it's time for repair (unless you have some other faulty connections). Steve ----- Original Message ----- From: "Tom Behler" <[log in to unmask] To: <[log in to unmask] Sent: Wednesday, January 23, 2013 20:12 Subject: Strange TS590 Behavior Hello everyone. This quiry is to all of you TS590 owners out there. Several times now, I have noticed something really strange with my TS590, the cause of which I can't exactly pinpoint. In fact, it happened again last night. I was making some adjustments to my TS590, and suddenly, the receive sensitivity of the rig dropped. In addition, I started getting some very weird SWR readings and output power readings as I went through the bands, and switched various antennas in and out. Since I had the ARCP590 software, and all of my memories and settings saved for ready reference, I did a full re-set of the rig, hoping it would correct the problem. When I was done with the re-set, the rig was still acting very strangely. So, I simply turned it off, and went to bed. This morning, I turned the rig back on, and everything was fine, as if nothing ever happened. My theory is that something is tripping some sort of circuit protection system in the rig, and that, once the rig is idle, things somehow re-set themselves. Again, I can't say for sure what I was doing that created the problem to begin with, but it didn't seem to be anything too significant. I'm just curious as to whether anyone else has had this sort of thing happen to them. Tom Behler: KB8TYJ