[Elecraft] K3 No Audio in on Channel - on/off transients?

[Brian Moran]

I'm troubleshooting my K3 exhibiting no audio in the right channel, and would like to compare against a working K3.

In a working radio, when you cycle the power on/off, do you hear click-thumps in BOTH channels? 

FYI, I've done the following in consultation with elecraft support:
0) Verified the headphones are good
1) Removed / reseated KIO3 
2) Reinitialized the radio (EEINIT) and restored settings
3) Disabled the KRX3 in the settings, reboot the radio, verify still no audio, re-enable, reboot

today, am going to 
3) Remove/reinstall the KRX3
4) Remove/reinstall the DSP board 

This condition occurred coincidentally with using the K3 at a cabin, upon re-installing back in my shack.
Thanks,
Brian N9ADG 
Preston, WA