Jim,

Did you try removing and re-applying DC power to your KAT500? It's
very unlikely that re-downloading the firmware would have fixed
anything.

73,

    ~iain / N6ML


On Sun, Oct 28, 2012 at 5:31 AM, Jim Sheldon <w...@cox.net> wrote:
> Woke up early and when I woke up the station, the KAT500 turned on when the 
> P/S turned on, but instead of being in AUTO where it was when I shut it off 
> (yes, I shut the KAT500 off first with the front panel button) it came up 
> locked in MANual and the mode button would NOT turn it off or cause it to do 
> anything else.  No amount of button pushing in any combination would make it 
> do anything but sit there with it's one green light on and stare back at me.
>
> Thinking there was a front panel board, holding the switches and LED's, that 
> might have come partially unplugged in shipping, I pulled the top cover - WOW 
> that is one nice looking board in there, but no front panel, everything is on 
> the main board and it's all soldered in and 99 percent (except for the 
> relays, MASSIVE toroids and air wound coils), surface mount.  Nothing plug-in 
> here.
>
> Hooked up the RS-232 cable and ran the utility program.  It would not 
> communicate with the tuner giving me a screen indicating that the KAT500 was 
> waiting for the power button or a firmware download and after a while would 
> timeout with the KAT500 not responding message.
>
> Could find nothing in the manual that indicated how to force a firmware load, 
> so I in my "banging" mood, told the Utility program to install new firmware 
> (I had downloaded the current version from Elecraft), started pressing and/or 
> holding buttons in various combinations.  Somewhere in all this, I managed to 
> hit on the right combination to force it to accept the firmware download from 
> the utility program and all is again well.
>
> I have no idea what caused the glitch (cosmic rays, Boeing's EMP missile 
> flying over wichita, or Murphy crawling around in there), but it's apparently 
> back up and running.  I'll keep an eye on it over the coming days (weeks, 
> maybe if it doesn't happen again) and try to find out what circumstances 
> caused the problem.  Meanwhile, Elecraft (separate message will be sent to 
> support), PLEASE publish the RESET and FORCE FIRMWARE LOAD instructions where 
> the casual observer can find it.  Having that info in the operating manual 
> would have been a HUGE help this morning.
>
> Jim Sheldon - W0EB
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