[Elecraft] KPA500 alarm

[Steve Forst]

I'm a blind owner of a KPA500/KAT500 for several years, married to a 
TS-590SG.

The alarm that sounds when the amp faults (rarely) is impossible to hear 
when wearing headphones.

I've stuck a microphone  element near the radio and connected it to the 
mixer I use to put radio audio and computer speech into the  headphones.

On CW, and with the mic level set low enough, I could hear the alarm 
without  getting other shack noise, but not practical for SSB operation.

2 questions:
1.  Where does the sound actually come from on the amp?   If I knew 
where it comes out of the case, I would concentrate there.

2.  Is it possible to trigger the alarm with a software command or 
something?   I don't want to put the amp into intentional fault just for 
purposes of experimentation.

My amp faults infrequently, mostly 80/160 if ever, but  would still like 
to know if the alarm sounds.

Tnx for any thoughts, I get this on digest, so am on a slight delay.
Steve KW3A