[Elecraft] K3 doesn't boot when KAT500 is unpowered

[Thomas Lindner]

Hi,

my KAT500 works fine without any problems. It is connected  to the K3  via the DB15 interface cable. There is no KPA500 in the chain.
Today I noticed, the K3 hangs when switched on while there is no power supply to the KAT500! The K3 display is blank, no audio. No reaction from all buttons.

Can somebody confirm that? Any ideas?

73 de Tom, DL2RUM