[Elecraft] KPA500 MCU LOAD screen

[Jack Brindle]

I have seen this also, and agree with Andy’s assessment. A program that polls the ports to find its target can also cause this issue.
Even though the KPA is displaying the MCU LOAD message, as long as no firmware data has been sent to the KPA500 and the firmware is actually not corrupt, you should be able to recover back to an operating state by powering the KPA off, then back on using the rear panel switch. 

I also have to mention that the KPA500 does a firmware check on power-on (when you push the front-panel power button). If that fails you will also get the MCU LOAD message. In this situation you will need to apply a fresh firmware update to the KPA to get it going. In your case the state was entered accidentally, which allows the power cycle to get you going again.

Good luck with the remote serial port. And be sure to describe what you do to get it going. There are several of us interested!

73!
Jack, W6FB


> On Feb 13, 2020, at 8:07 AM, VO1HPFrank <invl160 at gmail.com> wrote:
> 
> Andy
> Yes I have a StarTech Ethernet to Serial port server attached to the RS232
> jack.  I have been trying to get it to work with the amp so that I can get
> rid of the PC at my remote.  Thanks for the solution.
> 
> Maybe there is something wrong with the server if data possibly corrupted . 
> Have not been able to get the server working remotely with the amp
> 
> Frank Vo1HP
> 
> 
> 
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