[Elecraft] Dead K3

[Jon Zaimes]

My main K3 (s/n 3021) was working fine but suddenly wouldn't power up.

 

Not sure if I had it on when I left the shack but when I came back hours
later it was off. When tried to turn it on using the Power button, nothing.
Power supply works fine with other K3 so that's not an issue.

 

Not immediately seeing anything in the troubleshooting section of manual,
though did try to do an init by holding shift/lo button when hitting the
Power button but no change.

 

Getting ready to open the box to investigate. Any tips?

 

73/Jon AA1K