[Elecraft] Keyer goes berserk

[Madison Jones]

Neither the key nor paddle work on my K3. Using N1MM+ with a paddle and
MORTTY keyer hooked up, when attempting to send a command via the keyboard,
the K3 gave gibberish. When I attempted to use the paddle, it acted as a
straight key. Rebooted everything with the same result. After testing the
computer, all cables, connectors, the paddle, and the MORTTY interface and
finding all will operate satisfactorily with a Brand X transceiver using
the same N1MM+ program, same computer and with a paddle, I hooked
everything back up to the K3. Now the K3 will not key at all, either
through the program or manually with the paddle. Any suggestions before I
send it back to Elecraft?

73

Madison
W5MJ