[Elecraft] 270V ERR KPA500

[Joe Hutchens]

Dwight...  Without a "theory of operation" manual and a good schematic, 
it's really difficult to tell what would cause this.  I'd like to see 
Elecraft publish an addendum to assist troubleshooting this amp.

Would a defective interlock switch cause this or a loose circuit board 
plug?  That would be too easy.  270 and 60 volts run to the PA assembly. 
You would have to isolate the PA assembly from the power supply for 
troubleshooting.

Give Elecraft a call and they will help you out!

Joe Hutchens  ( AJ8MH )
http://webpages.charter.net/aj8mh-radio/


On Wed, Feb 12, 2014 at 9:25 AM, DGB wrote:

> I'm getting this error from my amp when I turn it on and set it in the 
> OPER mode. Then it requires shutoff via the rear switch to shut it 
> off. I've been running it off 120v and has been working fine.
>
> What do I need to look for?
>
> 73 Dwight NS9I
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