[Elecraft] K3 missing right channel in front phones

[DK2GZ at aol.com]

Hello Fred,
 
I had a similar problem with the front socket. Search for headphone socket  
in the archive.
 
First we replaced the front socket, not an easy task, but still the  same.
Then I thought I had a problem with the rear socket, but the problem was  
the AUX-cable for the KPA500.
Are you have also a KPA500 connected? If this is true, disconnect the  
AUX-cable, test the K3 and then all is fine now, reconnect the AUX-cable  again.
 
73 de Harry,  DK2GZ